Using devm_ioremap_resource() can make the code cleaner and simpler.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch adds CONFIG_PM_SLEEP to suspend/resume functions to fix
the following build warning when CONFIG_PM_SLEEP is not selected.
drivers/char/hw_random/exynos-rng.c:147:12: warning: 'exynos_rng_runtime_suspend' defined but not used [-Wunused-function]
drivers/char/hw_random/exynos-rng.c:157:12: warning: 'exynos_rng_runtime_resume' defined but not used [-Wunused-function]
Add CONFIG_PM_RUNTIME to suspend/resume functions to fix the build
error. It is because UNIVERSAL_DEV_PM_OPS macro is related to both
CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME.
drivers/char/hw_random/exynos-rng.c:167:8: error: 'exynos_rng_runtime_suspend' undeclared here (not in a function)
drivers/char/hw_random/exynos-rng.c:167:8: error: 'exynos_rng_runtime_resume' undeclared here (not in a function)
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reported-by: David Rientjes <rientjes@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
We never add buffers with input and output parts, so use the new accessors.
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We never add buffers with input and output parts, so use the new accessors.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Asias He <asias@redhat.com>
rng-core module allocates rng_buffer by kmalloc() since commit
f7f154f124. But this buffer won't be
freed and there is a memory leak possibility at module exit.
Signed-off-by: Satoru Takeuchi <satoru.takeuchi@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This reverts commit 8078db789a, and
adds a lengthy comment explaining the problem area.
The reverted patch caused opening of ports to fail for rproc_serial.
In probe guest_connected was set to true, but port_fops_open()
fails with -EMFILE if guest_connected already is true.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This patch converts the drivers to use the
module_platform_driver_probe() macro which makes the code smaller and
a bit simpler.
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We're iterating through abps[] printing information, but here we
use the wrong array index. IndexCard comes from the user and in
this case it was specifically not range checked because we didn't
expect to use it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
used by a thread when it exits.
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Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull random fixes from Ted Ts'o:
"Fix a circular locking dependency in random's collection of cputime
used by a thread when it exits."
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: fix locking dependency with the tasklist_lock
The code currently only supports one virtio-rng device at a time.
Invoking guests with multiple devices causes the guest to blow up.
Check if we've already registered and initialised the driver. Also
cleanup in case of registration errors or hot-unplug so that a new
device can be used.
Reported-by: Peter Krempa <pkrempa@redhat.com>
Reported-by: <yunzheng@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
virtio_rng feeds the randomness buffer handed by the core directly
into the scatterlist, since commit bb347d9807.
However, if CONFIG_HW_RANDOM=m, the static buffer isn't a linear address
(at least on most archs). We could fix this in virtio_rng, but it's actually
far easier to just do it in the core as virtio_rng would have to allocate
a buffer every time (it doesn't know how much the core will want to read).
Reported-by: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
Commit 6133705494 introduced a circular lock dependency because
posix_cpu_timers_exit() is called by release_task(), which is holding
a writer lock on tasklist_lock, and this can cause a deadlock since
kill_fasync() gets called with nonblocking_pool.lock taken.
There's no reason why kill_fasync() needs to be taken while the random
pool is locked, so move it out to fix this locking dependency.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: Russ Dill <Russ.Dill@gmail.com>
Cc: stable@kernel.org
If the minor number is assigned dynamically, there is no need to search
for misc->minor in misc_list, since misc->minor == MISC_DYNAMIC_MINOR.
[akpm@linux-foundation.org: reduce scope of local `c']
Signed-off-by: Dae S. Kim <dae@velatum.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add try... parameters to disable pci and platform (openfirmware) device
scanning for IPMI. Also add docs for all the try... parameters.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The configuration change building ipmi_si into the kernel precludes the
use of a custom driver that can utilize more than one KCS interface,
multiple IPMBs, and more than one BMC. This capability is important for
fault-tolerant systems.
Even if the kernel option ipmi_si.trydefaults=0 is specified, ipmi_si
discovers and claims one of the KCS interfaces on a Stratus server. The
inability to now prevent the kernel from managing this device is a
regression from previous kernels. The regression breaks a capability
fault-tolerant vendors have relied upon.
To support both ACPI opregion access and the need to avoid activation of
ipmi_si on some platforms, we've added two new kernel options,
ipmi_si.tryacpi and ipmi_si.trydmi be added to prevent ipmi_si from
initializing when these options are set to 0 on the kernel command line.
With these options at the default value of 1, ipmi_si init proceeds
according to the kernel default.
Tested-by: Jim Paradis <jparadis@redhat.com>
Signed-off-by: Robert Evans <Robert.Evans@stratus.com>
Signed-off-by: Jim Paradis <jparadis@redhat.com>
Signed-off-by: Tony Camuso <tcamuso@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull vfs pile (part one) from Al Viro:
"Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent
locking violations, etc.
The most visible changes here are death of FS_REVAL_DOT (replaced with
"has ->d_weak_revalidate()") and a new helper getting from struct file
to inode. Some bits of preparation to xattr method interface changes.
Misc patches by various people sent this cycle *and* ocfs2 fixes from
several cycles ago that should've been upstream right then.
PS: the next vfs pile will be xattr stuff."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits)
saner proc_get_inode() calling conventions
proc: avoid extra pde_put() in proc_fill_super()
fs: change return values from -EACCES to -EPERM
fs/exec.c: make bprm_mm_init() static
ocfs2/dlm: use GFP_ATOMIC inside a spin_lock
ocfs2: fix possible use-after-free with AIO
ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path
get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero
target: writev() on single-element vector is pointless
export kernel_write(), convert open-coded instances
fs: encode_fh: return FILEID_INVALID if invalid fid_type
kill f_vfsmnt
vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op
nfsd: handle vfs_getattr errors in acl protocol
switch vfs_getattr() to struct path
default SET_PERSONALITY() in linux/elf.h
ceph: prepopulate inodes only when request is aborted
d_hash_and_lookup(): export, switch open-coded instances
9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate()
9p: split dropping the acls from v9fs_set_create_acl()
...
Cheers,
Rusty.
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Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio updates from Rusty Russell:
"All trivial, thanks to the stuff which didn't quite make it time"
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
virtio_console: Initialize guest_connected=true for rproc_serial
virtio: use module_virtio_driver.
virtio: Add module driver macro for virtio drivers.
virtio_console: Use virtio device index to generate port name
virtio: make pci_device_id const
virtio: make config_ops const
virtio-mmio: fix wrong comment about register offset
virtio_console: Let unconnected rproc device receive data.
Pull drm merge from Dave Airlie:
"Highlights:
- TI LCD controller KMS driver
- TI OMAP KMS driver merged from staging
- drop gma500 stub driver
- the fbcon locking fixes
- the vgacon dirty like zebra fix.
- open firmware videomode and hdmi common code helpers
- major locking rework for kms object handling - pageflip/cursor
won't block on polling anymore!
- fbcon helper and prime helper cleanups
- i915: all over the map, haswell power well enhancements, valleyview
macro horrors cleaned up, killing lots of legacy GTT code,
- radeon: CS ioctl unification, deprecated UMS support, gpu reset
rework, VM fixes
- nouveau: reworked thermal code, external dp/tmds encoder support
(anx9805), fences sleep instead of polling,
- exynos: all over the driver fixes."
Lovely conflict in radeon/evergreen_cs.c between commit de0babd60d
("drm/radeon: enforce use of radeon_get_ib_value when reading user cmd")
and the new changes that modified that evergreen_dma_cs_parse()
function.
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (508 commits)
drm/tilcdc: only build on arm
drm/i915: Revert hdmi HDP pin checks
drm/tegra: Add list of framebuffers to debugfs
drm/tegra: Fix color expansion
drm/tegra: Split DC_CMD_STATE_CONTROL register write
drm/tegra: Implement page-flipping support
drm/tegra: Implement VBLANK support
drm/tegra: Implement .mode_set_base()
drm/tegra: Add plane support
drm/tegra: Remove bogus tegra_framebuffer structure
drm: Add consistency check for page-flipping
drm/radeon: Use generic HDMI infoframe helpers
drm/tegra: Use generic HDMI infoframe helpers
drm: Add EDID helper documentation
drm: Add HDMI infoframe helpers
video: Add generic HDMI infoframe helpers
drm: Add some missing forward declarations
drm: Move mode tables to drm_edid.c
drm: Remove duplicate drm_mode_cea_vic()
gma500: Fix n, m1 and m2 clock limits for sdvo and lvds
...
Pull core locking changes from Ingo Molnar:
"The biggest change is the rwsem lock-steal improvements, both to the
assembly optimized and the spinlock based variants.
The other notable change is the clean up of the seqlock implementation
to be based on the seqcount infrastructure.
The rest is assorted smaller debuggability, cleanup and continued -rt
locking changes."
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rwsem-spinlock: Implement writer lock-stealing for better scalability
futex: Revert "futex: Mark get_robust_list as deprecated"
generic: Use raw local irq variant for generic cmpxchg
lockdep: Selftest: convert spinlock to raw spinlock
seqlock: Use seqcount infrastructure
seqlock: Remove unused functions
ntp: Make ntp_lock raw
intel_idle: Convert i7300_idle_lock to raw_spinlock
locking: Various static lock initializer fixes
lockdep: Print more info when MAX_LOCK_DEPTH is exceeded
rwsem: Implement writer lock-stealing for better scalability
lockdep: Silence warning if CONFIG_LOCKDEP isn't set
watchdog: Use local_clock for get_timestamp()
lockdep: Rename print_unlock_inbalance_bug() to print_unlock_imbalance_bug()
locking/stat: Fix a typo
Here's the big char/misc driver patches for 3.9-rc1.
Nothing major here, just lots of different driver updates (mei, hyperv, ipack,
extcon, vmci, etc.).
All of these have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver patches from Greg Kroah-Hartman:
"Here's the big char/misc driver patches for 3.9-rc1.
Nothing major here, just lots of different driver updates (mei,
hyperv, ipack, extcon, vmci, etc.).
All of these have been in the linux-next tree for a while."
* tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (209 commits)
w1: w1_therm: Add force-pullup option for "broken" sensors
w1: ds2482: Added 1-Wire pull-up support to the driver
vme: add missing put_device() after device_register() fails
extcon: max8997: Use workqueue to check cable state after completing boot of platform
extcon: max8997: Set default UART/USB path on probe
extcon: max8997: Consolidate duplicate code for checking ADC/CHG cable type
extcon: max8997: Set default of ADC debounce time during initialization
extcon: max8997: Remove duplicate code related to set H/W line path
extcon: max8997: Move defined constant to header file
extcon: max77693: Make max77693_extcon_cable static
extcon: max8997: Remove unreachable code
extcon: max8997: Make max8997_extcon_cable static
extcon: max77693: Remove unnecessary goto statement to improve readability
extcon: max77693: Convert to devm_input_allocate_device()
extcon: gpio: Rename filename of extcon-gpio.c according to kernel naming style
CREDITS: update email and address of Harald Hoyer
extcon: arizona: Use MICDET for final microphone identification
extcon: arizona: Always take the first HPDET reading as the final one
extcon: arizona: Clear _trig_sts bits after jack detection
extcon: arizona: Don't HPDET magic when headphones are enabled
...
Here's the big tty/serial driver patches for 3.9-rc1.
More tty port rework and fixes from Jiri here, as well as lots of
individual serial driver updates and fixes.
All of these have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial patches from Greg Kroah-Hartman:
"Here's the big tty/serial driver patches for 3.9-rc1.
More tty port rework and fixes from Jiri here, as well as lots of
individual serial driver updates and fixes.
All of these have been in the linux-next tree for a while."
* tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits)
tty: mxser: improve error handling in mxser_probe() and mxser_module_init()
serial: imx: fix uninitialized variable warning
serial: tegra: assume CONFIG_OF
TTY: do not update atime/mtime on read/write
lguest: select CONFIG_TTY to build properly.
ARM defconfigs: add missing inclusions of linux/platform_device.h
fb/exynos: include platform_device.h
ARM: sa1100/assabet: include platform_device.h directly
serial: imx: Fix recursive locking bug
pps: Fix build breakage from decoupling pps from tty
tty: Remove ancient hardpps()
pps: Additional cleanups in uart_handle_dcd_change
pps: Move timestamp read into PPS code proper
pps: Don't crash the machine when exiting will do
pps: Fix a use-after free bug when unregistering a source.
pps: Use pps_lookup_dev to reduce ldisc coupling
pps: Add pps_lookup_dev() function
tty: serial: uartlite: Support uartlite on big and little endian systems
tty: serial: uartlite: Fix sparse and checkpatch warnings
serial/arc-uart: Miscll DT related updates (Grant's review comments)
...
Fix up trivial conflicts, mostly just due to the TTY config option
clashing with the EXPERIMENTAL removal.
Here is the big driver core merge for 3.9-rc1
There are two major series here, both of which touch lots of drivers all
over the kernel, and will cause you some merge conflicts:
- add a new function called devm_ioremap_resource() to properly be
able to check return values.
- remove CONFIG_EXPERIMENTAL
If you need me to provide a merged tree to handle these resolutions,
please let me know.
Other than those patches, there's not much here, some minor fixes and
updates.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches from Greg Kroah-Hartman:
"Here is the big driver core merge for 3.9-rc1
There are two major series here, both of which touch lots of drivers
all over the kernel, and will cause you some merge conflicts:
- add a new function called devm_ioremap_resource() to properly be
able to check return values.
- remove CONFIG_EXPERIMENTAL
Other than those patches, there's not much here, some minor fixes and
updates"
Fix up trivial conflicts
* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
base: memory: fix soft/hard_offline_page permissions
drivercore: Fix ordering between deferred_probe and exiting initcalls
backlight: fix class_find_device() arguments
TTY: mark tty_get_device call with the proper const values
driver-core: constify data for class_find_device()
firmware: Ignore abort check when no user-helper is used
firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
firmware: Make user-mode helper optional
firmware: Refactoring for splitting user-mode helper code
Driver core: treat unregistered bus_types as having no devices
watchdog: Convert to devm_ioremap_resource()
thermal: Convert to devm_ioremap_resource()
spi: Convert to devm_ioremap_resource()
power: Convert to devm_ioremap_resource()
mtd: Convert to devm_ioremap_resource()
mmc: Convert to devm_ioremap_resource()
mfd: Convert to devm_ioremap_resource()
media: Convert to devm_ioremap_resource()
iommu: Convert to devm_ioremap_resource()
drm: Convert to devm_ioremap_resource()
...
Pull security subsystem updates from James Morris:
"This is basically a maintenance update for the TPM driver and EVM/IMA"
Fix up conflicts in lib/digsig.c and security/integrity/ima/ima_main.c
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (45 commits)
tpm/ibmvtpm: build only when IBM pseries is configured
ima: digital signature verification using asymmetric keys
ima: rename hash calculation functions
ima: use new crypto_shash API instead of old crypto_hash
ima: add policy support for file system uuid
evm: add file system uuid to EVM hmac
tpm_tis: check pnp_acpi_device return code
char/tpm/tpm_i2c_stm_st33: drop temporary variable for return value
char/tpm/tpm_i2c_stm_st33: remove dead assignment in tpm_st33_i2c_probe
char/tpm/tpm_i2c_stm_st33: Remove __devexit attribute
char/tpm/tpm_i2c_stm_st33: Don't use memcpy for one byte assignment
tpm_i2c_stm_st33: removed unused variables/code
TPM: Wait for TPM_ACCESS tpmRegValidSts to go high at startup
tpm: Fix cancellation of TPM commands (interrupt mode)
tpm: Fix cancellation of TPM commands (polling mode)
tpm: Store TPM vendor ID
TPM: Work around buggy TPMs that block during continue self test
tpm_i2c_stm_st33: fix oops when i2c client is unavailable
char/tpm: Use struct dev_pm_ops for power management
TPM: STMicroelectronics ST33 I2C BUILD STUFF
...
Whilst IOMMU is enabled for the Intel GPU on Ironlake, it appears that
using WC writes to update the PTE on the GPU fails miserably. The
result looks like the majority of the writes do not land leading to
lots of screen corruption and a hard system hang.
v2: s/</<=/ to preserve the current exclusion of Sandybridge
Reported-by: Nathan Myers <ncm@cantrip.org>
Bugzilla: https://bugzilla.freedesktop.org/show_bug.cgi?id=60391
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Nathan Myers <ncm@cantrip.org>
[danvet: Remove cc: stable and add tested-by.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The static lock initializers want to be fed the proper name of the
lock and not some random string. In mainline random strings are
obfuscating the readability of debug output, but for RT they prevent
the spinlock substitution. Fix it up.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* acpi-cleanup: (21 commits)
ACPI / hotplug: Fix concurrency issues and memory leaks
ACPI: Remove the use of CONFIG_ACPI_CONTAINER_MODULE
ACPI / scan: Full transition to D3cold in acpi_device_unregister()
ACPI / scan: Make acpi_bus_hot_remove_device() acquire the scan lock
ACPI: Drop the container.h header file
ACPI / Documentation: refer to correct file for acpi_platform_device_ids[] table
ACPI / scan: Make container driver use struct acpi_scan_handler
ACPI / scan: Remove useless #ifndef from acpi_eject_store()
ACPI: Unbind ACPI drv when probe failed
ACPI: sysfs eject support for ACPI scan handlers
ACPI / scan: Follow priorities of IDs when matching scan handlers
ACPI / PCI: pci_slot: replace printk(KERN_xxx) with pr_xxx()
ACPI / dock: Fix acpi_bus_get_device() check in drivers/acpi/dock.c
ACPI / scan: Clean up acpi_bus_get_parent()
ACPI / platform: Use struct acpi_scan_handler for creating devices
ACPI / PCI: Make PCI IRQ link driver use struct acpi_scan_handler
ACPI / PCI: Make PCI root driver use struct acpi_scan_handler
ACPI / scan: Introduce struct acpi_scan_handler
ACPI / scan: Make scanning of fixed devices follow the general scheme
ACPI: Drop device start operation that is not used
...
When I refactored the code initially, I forgot that gen2 uses a
different bar for the CPU mappable aperture. The agp-less code knows
nothing of generations less than 5, so we have to expand the gtt_probe
function to include the mappable base and end.
It was originally broken by me:
commit baa09f5fd8
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Thu Jan 24 13:49:57 2013 -0800
drm/i915: Add probe and remove to the gtt ops
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
When rproc_serial is initialized, guest_connected should be set
to true. We can then revert the extra checks introduced in
commit: "virtio_console: Let unconnected rproc device receive data."
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Use virtio device index for creating unique device port names.
Current index allocation in virtio is based on a monotonically
increasing variable "index". A better handling of this is to
use device index which is allocated by ida.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
ERROR: open brace '{' following struct go on the same line
ERROR: space required after that ','
ERROR: space prohibited after that open parenthesis '('
WARNING: please, no spaces at the start of a line
WARNING: please, no space before tabs
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mgslpc_probe() ignores errors in mgslpc_add_device() and
does not release all resource if mgslpc_config() failed.
The patch adds returned code to mgslpc_add_device()
and fixes the both issues.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes four foo * bar errors, and one trailing whitespace
complaint from checkpatch.pl
Signed-off-by: Hans Grob <H.Grob@physik.uni-muenchen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We don't need a temporary variable just to store the return value which
gets return in the next statement.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Err is never read before it is assigned again -> remove the dead
assigment.
Found with clang static analyzer
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
With the HOTPLUG changes 3.8 this attribute is going away.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
We don't need to call memcpy for one byte, but assign it directly.
And to make the offset clearer we use the array syntax on the subsequent
call to memset to make the relationship clearer.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
The TIS specification (pg 47) says the valid bit must be set, but
the TPM will not set it until it has completed its internal startup.
The driver checks that the valid bit is set during request_locality,
but it issues a TPM_ACCESS_REQUEST_USE without validating the
valid bit is set.
Some TPMs will ignore the TPM_ACCESS_REQUEST_USE, until valid is
set which causes the request_locality to timeout, which breaks the
driver attach.
Wait one timeout unit for valid to assert. If valid does not assert
then assume -ENODEV.
Seen on embedded with a:
1.2 TPM (device-id 0x3204, rev-id 64)
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Support cancellation of TPM commands when driver is used in interrupt
mode.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
On one of my machines the cancellation of TPM commands does not work.
The reason is that by writing into sysfs 'cancel' the tpm_tis_ready
call causes the status flag TPM_STS_VALID to be set in the statusregister.
However, the TIS driver seems to wait for TPM_STS_COMMAND_READY.
Once a 2nd time sysfs 'cancel' is written to, the TPM_STS_COMMAND_READY flag
also gets set, resulting in TPM_STS_VALID|TPM_STS_COMMAND_READY to be
read from the status register.
This patch now converts req_canceled into a function to enable more complex
comparisons against possible cancellation status codes.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
We've been testing an alternative TPM for our embedded products and
found random kernel boot failures due to time outs after the continue
self test command.
This was happening randomly, and has been *very* hard to track down, but
it
looks like with this chip there is some kind of race with the
tpm_tis_status()
check of TPM_STS_COMMAND_READY. If things get there 'too fast' then
it sees the chip is ready, or tpm_tis_ready() works. Otherwise it takes
somewhere over 400ms before the chip will return TPM_STS_COMMAND_READY.
Adding some delay after tpm_continue_selftest() makes things reliably
hit the failure path, otherwise it is a crapshot.
The spec says it should be returning TPM_WARN_DOING_SELFTEST, not
holding
off on ready..
Boot log during this event looks like this:
tpm_tis 70030000.tpm_tis: 1.2 TPM (device-id 0x3204, rev-id 64)
tpm_tis 70030000.tpm_tis: Issuing TPM_STARTUP
tpm_tis 70030000.tpm_tis: tpm_transmit: tpm_send: error -62
tpm_tis 70030000.tpm_tis: [Hardware Error]: TPM command timed out during
continue self test
tpm_tis 70030000.tpm_tis: tpm_transmit: tpm_send: error -62
tpm_tis 70030000.tpm_tis: [Hardware Error]: TPM command timed out during
continue self test
tpm_tis 70030000.tpm_tis: tpm_transmit: tpm_send: error -62
tpm_tis 70030000.tpm_tis: [Hardware Error]: TPM command timed out during
continue self test
tpm_tis 70030000.tpm_tis: tpm_transmit: tpm_send: error -62
tpm_tis 70030000.tpm_tis: [Hardware Error]: TPM command timed out during
continue self test
The other TPM vendor we use doesn't show this wonky behaviour:
tpm_tis 70030000.tpm_tis: 1.2 TPM (device-id 0xFE, rev-id 70)
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
When no i2c bus exists, user-space can cause an oops by triggering a
device probe through a message sent to an i2c "new_device" sysfs entry.
Adding a check for a NULL i2c client structure in the probe function
closes the hole.
This patch also fixes accessing the NULL client struct in the print
function call reporting the error.
Reported-by: Peter Hüwe <PeterHuewe@gmx.de>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
This patch converts the suspend and resume functions for
tpm_i2c_stm_st33 to the new dev_pm_ops.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
* STMicroelectronics version 1.2.0, Copyright (C) 2010
* STMicroelectronics comes with ABSOLUTELY NO WARRANTY.
* This is free software, and you are welcome to redistribute it
* under certain conditions.
This is the driver for TPM chip from ST Microelectronics.
If you have a TPM security chip from STMicroelectronics working with
an I2C, in menuconfig or .config choose the tpm driver on
device --> tpm and activate the protocol of your choice before compiling
the kernel.
The driver will be accessible from within Linux.
Tested on linux x86/x64, beagleboard REV B & XM REV C and CHROMIUM OS
Signed-off-by: Mathias Leblanc <mathias.leblanc@st.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Store the i2c_client struct in the vendor private pointer. Get rid of
the unnecessary include/linux/i2c/ header. Moved include files into the
driver c file. Fix smatch warnings. Make use of module_i2c_driver().
Removed unused code from the tpm_stm_st33_i2c.h file. Fix return
variable signedness in tpm_stm_i2c_send() and tpm_st33_i2c_probe().
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
"data" was too generic a name for what's being used as a generic
private pointer by vendor-specific code. Rename it to "priv" and provide
a #define for users.
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
* STMicroelectronics version 1.2.0, Copyright (C) 2010
* STMicroelectronics comes with ABSOLUTELY NO WARRANTY.
* This is free software, and you are welcome to redistribute it
* under certain conditions.
This is the driver for TPM chip from ST Microelectronics.
If you have a TPM security chip from STMicroelectronics working with
an I2C, in menuconfig or .config choose the tpm driver on
device --> tpm and activate the protocol of your choice before compiling
the kernel.
The driver will be accessible from within Linux.
Tested on linux x86/x64 on kernel 3.x
Signed-off-by: Mathias Leblanc <mathias.leblanc@st.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Bool initializations should use true and false. Bool tests don't need
comparisons. Based on contributions from Joe Perches, Rusty Russell
and Bruce W Allan.
The semantic patch that makes this output is available
in scripts/coccinelle/misc/boolinit.cocci.
More information about semantic patching is available at
http://coccinelle.lip6.fr/
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
This seems to be preferred these days.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
The TPM will respond to TPM_GET_CAP with TPM_ERR_INVALID_POSTINIT if
TPM_STARTUP has not been issued. Detect this and automatically
issue TPM_STARTUP.
This is for embedded applications where the kernel is the first thing
to touch the TPM.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Peter Huewe <peter.huewe@infineon.com>
Reviewed-by: Peter Huewe <peter.huewe@infineon.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
This patch changes the semantics of the duration calculation for an
ordinal, by masking out the higher bits of a tpm command, which specify
whether it's an TPM_PROTECTED_COMMAND, TPM_UNPROTECTED_COMMAND,
TPM_CONNECTION_COMMAND, TPM_CONNECTION_COMMAND, TPM_VENDOR_COMMAND.
(See TPM Main Spec Part 2 Section 17 for details).
For all TPM_PROTECTED and TPM_CONNECTION commands the results are
unchanged.
The TPM_UNPROTECTED commands are TSS commands and thus irrelevant as
they are not sent to the tpm.
For vendor commands the semantics change for ordinals 10 and 11 but
they were probably wrong anyway.
For everything else which has the ordinal set to 10 or 11 the semantics
change as it now uses TPM_UNDEFINED instead of TPM_SHORT which was
probably wrong anyway (but irrelevant as not defined by the standard).
This patch also gets rid of the (false positive) smatch warning:
drivers/char/tpm/tpm.c:360 tpm_calc_ordinal_duration() error: buffer
overflow 'tpm_protected_ordinal_duration' 12 <= 243
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
The entries in tpm_protected_ordinal_duration are exactly the same as
the first 12 in tpm_ordinal_duration, so we can simply remove this one,
and save some bytes.
This does not change the behavior of the driver.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
With the probe call in our dispatch table, we can now cut away the
last three remaining members in the intel_gtt shared struct and so
remove it completely.
v2: Rebased on top of Daniel's series
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: bikeshed commit message a bit.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Dan Carpenter noticed a missing set of parentheses
around a multiple field addition.
https://lkml.org/lkml/2013/1/27/166
His original commit message:
There is a kind of precedence problem here, but it doesn't affect how
the code works because ->serial_signals is unsigned char. We want to
clear two flags here.
#define SerialSignal_RTS 0x20 /* Request to Send */
#define SerialSignal_DTR 0x80 /* Data Terminal Ready */
Without the parenthesis then it does:
info->serial_signals &= 0x5f;
With the parenthesis it does:
info->serial_signals &= 0xffffff5f;
info->serial_signals is an unsigned char so the two statements are
equivalent, but it's cleaner to add the parenthesis. In other dtr_rts()
functions the parenthesis are there so this makes it more consistent.
Other changes:
Convert all + uses to | for these bit operations.
Reorder the multiple fields for consistency.
Update the comments too.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The second argument of ACPI driver .remove() operation is only used
by the ACPI processor driver and the value passed to that driver
through it is always available from the given struct acpi_device
object's removal_type field. For this reason, the second ACPI driver
.remove() argument is in fact useless, so drop it.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Jiang Liu <jiang.liu@huawei.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allow rproc serial ports to receive data before the port
is connected.
Rproc serial ports usually talk to very simple remote devices
with no control queue managing open/close events. So we must
let remote devices write to the virtio ring even if the device
is not yet fully initialized.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It is no longer used in the i915 code, so isolate it from the shared
struct.
This was originally part of:
commit 0e275518f325418d559c05327775bff894b237f7
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Mon Jan 14 13:35:33 2013 -0800
agp/intel: decouple more of the agp-i915 sharing
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
That commit had some other hunks which can't be used due to issues
Daniel found in previous commits.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: drop squash notice from the commit since it's imo ok to keep
this one separate.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The reasoning behind our code taking two paths depending upon whether or
not we may have been configured for IOMMU isn't clear to me. It should
always be safe to use the pci mapping functions as they are designed to
abstract the decision we were handling in i915.
Aside from simpler code, removing another member for the intel_gtt
struct is a nice motivation.
I ran this by Chris, and he wasn't concerned about the extra kzalloc,
and memory references vs. page_to_phys calculation in the case without
IOMMU.
v2: Update commit message
v3: Remove needs_dmar addition from Zhenyu upstream
This reverts (and then other stuff)
commit 20652097da
Author: Zhenyu Wang <zhenyuw@linux.intel.com>
Date: Thu Dec 13 23:47:47 2012 +0800
drm/i915: Fix missed needs_dmar setting
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> (v2)
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Squash in follow-up fix to remove the bogus hunk which
deleted the dma_mask configuration for gen6+.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We already had a mapping in both (minus the phys_addr in AGP).
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
And, move it to where the rest of the logic is.
There is some slight functionality changes. There was extra paranoid
checks in AGP code making sure we never do idle maps on gen2 parts. That
was not duplicated as the simple PCI id check should do the right thing.
v2: use IS_GEN5 && IS_MOBILE check instead. For now, this is the same as
IS_IRONLAKE_M but is more future proof. The workaround docs hint that
more than one platform may be effected, but we've never seen such a
platform in the wild. (Rodrigo, Daniel)
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> (v1)
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The option allows you to remove TTY and compile without errors. This
saves space on systems that won't support TTY interfaces anyway.
bloat-o-meter output is below.
The bulk of this patch consists of Kconfig changes adding "depends on
TTY" to various serial devices and similar drivers that require the TTY
layer. Ideally, these dependencies would occur on a common intermediate
symbol such as SERIO, but most drivers "select SERIO" rather than
"depends on SERIO", and "select" does not respect dependencies.
bloat-o-meter output comparing our previous minimal to new minimal by
removing TTY. The list is filtered to not show removed entries with awk
'$3 != "-"' as the list was very long.
add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350)
function old new delta
chr_dev_init 166 170 +4
allow_signal 80 82 +2
static.__warned 143 142 -1
disallow_signal 63 62 -1
__set_special_pids 95 94 -1
unregister_console 126 121 -5
start_kernel 546 541 -5
register_console 593 588 -5
copy_from_user 45 40 -5
sys_setsid 128 120 -8
sys_vhangup 32 19 -13
do_exit 1543 1526 -17
bitmap_zero 60 40 -20
arch_local_irq_save 137 117 -20
release_task 674 652 -22
static.spin_unlock_irqrestore 308 260 -48
Signed-off-by: Joe Millenbach <jmillenbach@gmail.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniel writes:
- seqno wrap fixes and debug infrastructure from Mika Kuoppala and Chris
Wilson
- some leftover kill-agp on gen6+ patches from Ben
- hotplug improvements from Damien
- clear fb when allocated from stolen, avoids dirt on the fbcon (Chris)
- Stolen mem support from Chris Wilson, one of the many steps to get to
real fastboot support.
- Some DDI code cleanups from Paulo.
- Some refactorings around lvds and dp code.
- some random little bits&pieces
* tag 'drm-intel-next-2012-12-21' of git://people.freedesktop.org/~danvet/drm-intel: (93 commits)
drm/i915: Return the real error code from intel_set_mode()
drm/i915: Make GSM void
drm/i915: Move GSM mapping into dev_priv
drm/i915: Move even more gtt code to i915_gem_gtt
drm/i915: Make next_seqno debugs entry to use i915_gem_set_seqno
drm/i915: Introduce i915_gem_set_seqno()
drm/i915: Always clear semaphore mboxes on seqno wrap
drm/i915: Initialize hardware semaphore state on ring init
drm/i915: Introduce ring set_seqno
drm/i915: Missed conversion to gtt_pte_t
drm/i915: Bug on unsupported swizzled platforms
drm/i915: BUG() if fences are used on unsupported platform
drm/i915: fixup overlay stolen memory leak
drm/i915: clean up PIPECONF bpc #defines
drm/i915: add intel_dp_set_signal_levels
drm/i915: remove leftover display.update_wm assignment
drm/i915: check for the PCH when setting pch_transcoder
drm/i915: Clear the stolen fb before enabling
drm/i915: Access to snooped system memory through the GTT is incoherent
drm/i915: Remove stale comment about intel_dp_detect()
...
Conflicts:
drivers/gpu/drm/i915/intel_display.c
info in synclink bottom-halves cannot be NULL because it is taken from
work_struct using container_of. Remove the tests.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.
Now, the one where most of tty_port_tty_get gets removed:
tty_flip_buffer_push.
IOW we also closed all the races in drivers not using tty_port_tty_get
at all yet.
Also we move tty_flip_buffer_push declaration from include/linux/tty.h
to include/linux/tty_flip.h to all others while we are changing it
anyway.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
One point is to have less places where we actually need tty pointer.
The other is that low_latency is bound to buffer processing and
buffers are now in tty_port. So it makes sense to move low_latency to
tty_port too.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.
tty_insert_flip_char is the next one to proceed. This one is used all
over the code, so the patch is huge.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty pointer in
many call sites. Only tty_port will be needed and hence no more
tty_port_tty_get calls in those paths.
Here we start with tty_buffer_request_room.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix call to line discipline receive_buf by synclink drivers.
Dummy flag buffer argument is ignored by N_HDLC line discipline but might
be of insufficient size if accessed by a different line discipline
selected by mistake. flag buffer allocation now matches max size of data
buffer. Unused char_buf buffers are removed.
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: David Airlie <airlied@linux.ie>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Latinoware 2012.
There's a slightly non-trivial merge in virtio-net, as we cleaned up the
virtio add_buf interface while DaveM accepted the mq virtio-net patches.
You can see my solution in my pending-rebases branch, if that helps, but I
know you love merging:
https://git.kernel.org/?p=linux/kernel/git/rusty/linux.git;a=commit;h=12e4e64fa66a4c812e4855de32abdb4d819526fe
Cheers,
Rusty.
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Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio update from Rusty Russell:
"Some nice cleanups, and even a patch my wife did as a "live" demo for
Latinoware 2012.
There's a slightly non-trivial merge in virtio-net, as we cleaned up
the virtio add_buf interface while DaveM accepted the mq virtio-net
patches."
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (27 commits)
virtio_console: Add support for remoteproc serial
virtio_console: Merge struct buffer_token into struct port_buffer
virtio: add drv_to_virtio to make code clearly
virtio: use dev_to_virtio wrapper in virtio
virtio-mmio: Fix irq parsing in command line parameter
virtio_console: Free buffers from out-queue upon close
virtio: Convert dev_printk(KERN_<LEVEL> to dev_<level>(
virtio_console: Use kmalloc instead of kzalloc
virtio_console: Free buffer if splice fails
virtio: tools: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: scsi: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: rpmsg: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: net: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: console: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: make virtqueue_add_buf() returning 0 on success, not capacity.
virtio: console: don't rely on virtqueue_add_buf() returning capacity.
virtio_net: don't rely on virtqueue_add_buf() returning capacity.
virtio-net: remove unused skb_vnet_hdr->num_sg field
virtio-net: correct capacity math on ring full
virtio: move queue_index and num_free fields into core struct virtqueue.
...
This removes an unused field from the AGP structure and moves it into
the dev_priv structure (with a slightly better name). This builds upon
the kill-agp series already merged.
GSM is a well defined term in the bspec:
GSM: Graphics Stolen Memory
GTT stolen space is defined for storage of the GFX GTT entries in
physical memory. IA can not access GSM directly , it can only access via
GTTMMADR. GT can access GSM directly or through GTTMMADR.
This is not the entire stolen space.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull random updates from Ted Ts'o:
"A few /dev/random improvements for the v3.8 merge window."
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: Mix cputime from each thread that exits to the pool
random: prime last_data value per fips requirements
random: fix debug format strings
random: make it possible to enable debugging without rebuild
Add a simple serial connection driver called
VIRTIO_ID_RPROC_SERIAL (11) for communicating with a
remote processor in an asymmetric multi-processing
configuration.
This implementation reuses the existing virtio_console
implementation, and adds support for DMA allocation
of data buffers and disables use of tty console and
the virtio control queue.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Refactoring the splice functionality by unifying the approach for
sending scatter-lists and regular buffers. This simplifies
buffer handling and reduces code size. Splice will now allocate
a port_buffer and send_buf() and free_buf() can always be used
for any buffer.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Free pending output buffers from the virtio out-queue when
host has acknowledged port_close.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (rebased & cut down)
Avoid the more cpu expensive kzalloc when allocating buffers.
Originally kzalloc was intended for isolating the guest from
the host by not sending random guest data to the host. But device
isolation is not yet in place so kzalloc is not really needed.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Free the allocated scatter list if send_pages fails in function
port_splice_write.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Pull DRM updates from Dave Airlie:
"This is the one and only next pull for 3.8, we had a regression we
found last week, so I was waiting for that to resolve itself, and I
ended up with some Intel fixes on top as well.
Highlights:
- new driver: nvidia tegra 20/30/hdmi support
- radeon: add support for previously unused DMA engines, more HDMI
regs, eviction speeds ups and fixes
- i915: HSW support enable, agp removal on GEN6, seqno wrapping
- exynos: IPP subsystem support (image post proc), HDMI
- nouveau: display class reworking, nv20->40 z compression
- ttm: start of locking fixes, rcu usage for lookups,
- core: documentation updates, docbook integration, monotonic clock
usage, move from connector to object properties"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (590 commits)
drm/exynos: add gsc ipp driver
drm/exynos: add rotator ipp driver
drm/exynos: add fimc ipp driver
drm/exynos: add iommu support for ipp
drm/exynos: add ipp subsystem
drm/exynos: support device tree for fimd
radeon: fix regression with eviction since evict caching changes
drm/radeon: add more pedantic checks in the CP DMA checker
drm/radeon: bump version for CS ioctl support for async DMA
drm/radeon: enable the async DMA rings in the CS ioctl
drm/radeon: add VM CS parser support for async DMA on cayman/TN/SI
drm/radeon/kms: add evergreen/cayman CS parser for async DMA (v2)
drm/radeon/kms: add 6xx/7xx CS parser for async DMA (v2)
drm/radeon: fix htile buffer size computation for command stream checker
drm/radeon: fix fence locking in the pageflip callback
drm/radeon: make indirect register access concurrency-safe
drm/radeon: add W|RREG32_IDX for MM_INDEX|DATA based mmio accesss
drm/exynos: support extended screen coordinate of fimd
drm/exynos: fix x, y coordinates for right bottom pixel
drm/exynos: fix fb offset calculation for plane
...
Pull security subsystem updates from James Morris:
"A quiet cycle for the security subsystem with just a few maintenance
updates."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
Smack: create a sysfs mount point for smackfs
Smack: use select not depends in Kconfig
Yama: remove locking from delete path
Yama: add RCU to drop read locking
drivers/char/tpm: remove tasklet and cleanup
KEYS: Use keyring_alloc() to create special keyrings
KEYS: Reduce initial permissions on keys
KEYS: Make the session and process keyrings per-thread
seccomp: Make syscall skipping and nr changes more consistent
key: Fix resource leak
keys: Fix unreachable code
KEYS: Add payload preparsing opportunity prior to key instantiate or update
Pull trivial branch from Jiri Kosina:
"Usual stuff -- comment/printk typo fixes, documentation updates, dead
code elimination."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
HOWTO: fix double words typo
x86 mtrr: fix comment typo in mtrr_bp_init
propagate name change to comments in kernel source
doc: Update the name of profiling based on sysfs
treewide: Fix typos in various drivers
treewide: Fix typos in various Kconfig
wireless: mwifiex: Fix typo in wireless/mwifiex driver
messages: i2o: Fix typo in messages/i2o
scripts/kernel-doc: check that non-void fcts describe their return value
Kernel-doc: Convention: Use a "Return" section to describe return values
radeon: Fix typo and copy/paste error in comments
doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c
various: Fix spelling of "asynchronous" in comments.
Fix misspellings of "whether" in comments.
eisa: Fix spelling of "asynchronous".
various: Fix spelling of "registered" in comments.
doc: fix quite a few typos within Documentation
target: iscsi: fix comment typos in target/iscsi drivers
treewide: fix typo of "suport" in various comments and Kconfig
treewide: fix typo of "suppport" in various comments
...
Here are more patches in the progression towards multiplatform, sparse
irq conversions in particular.
Tegra has a handful of cleanups and general groundwork, but is
not quite there yet on full enablement.
Platforms that are enabled through this branch are VT8500 and Zynq. note
that i.MX was converted in one of the earlier cleanup branches as
well (before we started a separate topic for multiplatform). And both
new platforms for this merge window, sunxi and bcm, were merged with
multiplatform support enabled.
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Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC multiplatform conversion patches from Olof Johansson:
"Here are more patches in the progression towards multiplatform, sparse
irq conversions in particular.
Tegra has a handful of cleanups and general groundwork, but is not
quite there yet on full enablement.
Platforms that are enabled through this branch are VT8500 and Zynq.
Note that i.MX was converted in one of the earlier cleanup branches as
well (before we started a separate topic for multiplatform). And both
new platforms for this merge window, sunxi and bcm, were merged with
multiplatform support enabled."
Fix up conflicts mostly as per Olof.
* tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
ARM: zynq: Remove all unused mach headers
ARM: zynq: add support for ARCH_MULTIPLATFORM
ARM: zynq: make use of debug_ll_io_init()
ARM: zynq: remove TTC early mapping
ARM: tegra: move debug-macro.S to include/debug
ARM: tegra: don't include iomap.h from debug-macro.S
ARM: tegra: decouple uncompress.h and debug-macro.S
ARM: tegra: simplify DEBUG_LL UART selection options
ARM: tegra: select SPARSE_IRQ
ARM: tegra: enhance timer.c to get IO address from device tree
ARM: tegra: enhance timer.c to get IRQ info from device tree
ARM: timer: fix checkpatch warnings
ARM: tegra: add TWD to device tree
ARM: tegra: define DT bindings for and instantiate RTC
ARM: tegra: define DT bindings for and instantiate timer
clocksource/mtu-nomadik: use apb_pclk
clk: ux500: Register mtu apb_pclocks
ARM: plat-nomadik: convert platforms to SPARSE_IRQ
mfd/db8500-prcmu: use the irq_domain_add_simple()
mfd/ab8500-core: use irq_domain_add_simple()
...
This is a collection of header file cleanups, mostly for OMAP and AT91,
that keeps moving the platforms in the direction of multiplatform by
removing the need for mach-dependent header files used in drivers and
other places.
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Merge tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC Header cleanups from Olof Johansson:
"This is a collection of header file cleanups, mostly for OMAP and
AT91, that keeps moving the platforms in the direction of
multiplatform by removing the need for mach-dependent header files
used in drivers and other places."
Fix up mostly trivial conflicts as per Olof.
* tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (106 commits)
ARM: OMAP2+: Move iommu/iovmm headers to platform_data
ARM: OMAP2+: Make some definitions local
ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c
ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
ARM: OMAP2+: Move iopgtable header to drivers/iommu/
ARM: OMAP: Merge iommu2.h into iommu.h
atmel: move ATMEL_MAX_UART to platform_data/atmel.h
ARM: OMAP: Remove omap_init_consistent_dma_size()
arm: at91: move at91rm9200 rtc header in drivers/rtc
arm: at91: move reset controller header to arm/arm/mach-at91
arm: at91: move pit define to the driver
arm: at91: move at91_shdwc.h to arch/arm/mach-at91
arm: at91: move board header to arch/arm/mach-at91
arn: at91: move at91_tc.h to arch/arm/mach-at91
arm: at91 move at91_aic.h to arch/arm/mach-at91
arm: at91 move board.h to arch/arm/mach-at91
arm: at91: move platfarm_data to include/linux/platform_data/atmel.h
arm: at91: drop machine defconfig
ARM: OMAP: Remove NEED_MACH_GPIO_H
ARM: OMAP: Remove unnecessary mach and plat includes
...
Here's the big tty/serial tree set of changes for 3.8-rc1.
Contained in here is a bunch more reworks of the tty port layer from Jiri and
bugfixes from Alan, along with a number of other tty and serial driver updates
by the various driver authors.
Also, Jiri has been coerced^Wconvinced to be the co-maintainer of the TTY
layer, which is much appreciated by me.
All of these have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY/Serial merge from Greg Kroah-Hartman:
"Here's the big tty/serial tree set of changes for 3.8-rc1.
Contained in here is a bunch more reworks of the tty port layer from
Jiri and bugfixes from Alan, along with a number of other tty and
serial driver updates by the various driver authors.
Also, Jiri has been coerced^Wconvinced to be the co-maintainer of the
TTY layer, which is much appreciated by me.
All of these have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fixed up some trivial conflicts in the staging tree, due to the fwserial
driver having come in both ways (but fixed up a bit in the serial tree),
and the ioctl handling in the dgrp driver having been done slightly
differently (staging tree got that one right, and removed both
TIOCGSOFTCAR and TIOCSSOFTCAR).
* tag 'tty-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (146 commits)
staging: sb105x: fix potential NULL pointer dereference in mp_chars_in_buffer()
staging/fwserial: Remove superfluous free
staging/fwserial: Use WARN_ONCE when port table is corrupted
staging/fwserial: Destruct embedded tty_port on teardown
staging/fwserial: Fix build breakage when !CONFIG_BUG
staging: fwserial: Add TTY-over-Firewire serial driver
drivers/tty/serial/serial_core.c: clean up HIGH_BITS_OFFSET usage
staging: dgrp: dgrp_tty.c: Audit the return values of get/put_user()
staging: dgrp: dgrp_tty.c: Remove the TIOCSSOFTCAR ioctl handler from dgrp driver
serial: ifx6x60: Add modem power off function in the platform reboot process
serial: mxs-auart: unmap the scatter list before we copy the data
serial: mxs-auart: disable the Receive Timeout Interrupt when DMA is enabled
serial: max310x: Setup missing "can_sleep" field for GPIO
tty/serial: fix ifx6x60.c declaration warning
serial: samsung: add devicetree properties for non-Exynos SoCs
serial: samsung: fix potential soft lockup during uart write
tty: vt: Remove redundant null check before kfree.
tty/8250 Add check for pci_ioremap_bar failure
tty/8250 Add support for Commtech's Fastcom Async-335 and Fastcom Async-PCIe cards
tty/8250 Add XR17D15x devices to the exar_handle_irq override
...
Here is the "big" char/misc driver patches for 3.8-rc1. I'm starting to
put random driver subsystems that I had previously sent you through the
driver-core tree in this tree, as it makes more sense to do so.
Nothing major here, the various __dev* removals, some mei driver
updates, and other random driver-specific things from the different
maintainers and developers.
Note, some MFD drivers got added through this tree, and they are also
coming in through the "real" MFD tree as well, due to some major
mis-communication between me and the different developers. If you have
any merge conflicts, take the ones from the MFD tree, not these ones,
sorry about that.
All of this has been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull Char/Misc driver merge from Greg Kroah-Hartman:
"Here is the "big" char/misc driver patches for 3.8-rc1. I'm starting
to put random driver subsystems that I had previously sent you through
the driver-core tree in this tree, as it makes more sense to do so.
Nothing major here, the various __dev* removals, some mei driver
updates, and other random driver-specific things from the different
maintainers and developers.
Note, some MFD drivers got added through this tree, and they are also
coming in through the "real" MFD tree as well, due to some major
mis-communication between me and the different developers. If you
have any merge conflicts, take the ones from the MFD tree, not these
ones, sorry about that.
All of this has been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fix up trivial conflict in drivers/mmc/host/Kconfig due to new drivers
having been added (both at the end, as usual..)
* tag 'char-misc-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (84 commits)
MAINTAINERS: remove drivers/staging/hv/
misc/st_kim: Free resources in the error path of probe()
drivers/char: for hpet, add count checking, and ~0UL instead of -1
w1-gpio: Simplify & get rid of defines
w1-gpio: Pinctrl-fy
extcon: remove use of __devexit_p
extcon: remove use of __devinit
extcon: remove use of __devexit
drivers: uio: Only allocate new private data when probing device tree node
drivers: uio_dmem_genirq: Allow partial success when opening device
drivers: uio_dmem_genirq: Don't use DMA_ERROR_CODE to indicate unmapped regions
drivers: uio_dmem_genirq: Don't mix address spaces for dynamic region vaddr
uio: remove use of __devexit
uio: remove use of __devinitdata
uio: remove use of __devinit
uio: remove use of __devexit_p
char: remove use of __devexit
char: remove use of __devinitconst
char: remove use of __devinitdata
char: remove use of __devinit
...
Here's the large driver core updates for 3.8-rc1.
The biggest thing here is the various __dev* marking removals. This is
going to be a pain for the merge with different subsystem trees, I know,
but all of the patches included here have been ACKed by their various
subsystem maintainers, as they wanted them to go through here.
If this is too much of a pain, I can pull all of them out of this tree
and just send you one with the other fixes/updates and then, after
3.8-rc1 is out, do the rest of the removals to ensure we catch them all,
it's up to you. The merges should all be trivial, and Stephen has been
doing them all in linux-next for a few weeks now quite easily.
Other than the __dev* marking removals, there's nothing major here, some
firmware loading updates and other minor things in the driver core.
All of these have (much to Stephen's annoyance), been in linux-next for
a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg Kroah-Hartman:
"Here's the large driver core updates for 3.8-rc1.
The biggest thing here is the various __dev* marking removals. This
is going to be a pain for the merge with different subsystem trees, I
know, but all of the patches included here have been ACKed by their
various subsystem maintainers, as they wanted them to go through here.
If this is too much of a pain, I can pull all of them out of this tree
and just send you one with the other fixes/updates and then, after
3.8-rc1 is out, do the rest of the removals to ensure we catch them
all, it's up to you. The merges should all be trivial, and Stephen
has been doing them all in linux-next for a few weeks now quite
easily.
Other than the __dev* marking removals, there's nothing major here,
some firmware loading updates and other minor things in the driver
core.
All of these have (much to Stephen's annoyance), been in linux-next
for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fixed up trivial conflicts in drivers/gpio/gpio-{em,stmpe}.c due to gpio
update.
* tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (93 commits)
modpost.c: Stop checking __dev* section mismatches
init.h: Remove __dev* sections from the kernel
acpi: remove use of __devinit
PCI: Remove __dev* markings
PCI: Always build setup-bus when PCI is enabled
PCI: Move pci_uevent into pci-driver.c
PCI: Remove CONFIG_HOTPLUG ifdefs
unicore32/PCI: Remove CONFIG_HOTPLUG ifdefs
sh/PCI: Remove CONFIG_HOTPLUG ifdefs
powerpc/PCI: Remove CONFIG_HOTPLUG ifdefs
mips/PCI: Remove CONFIG_HOTPLUG ifdefs
microblaze/PCI: Remove CONFIG_HOTPLUG ifdefs
dma: remove use of __devinit
dma: remove use of __devexit_p
firewire: remove use of __devinitdata
firewire: remove use of __devinit
leds: remove use of __devexit
leds: remove use of __devinit
leds: remove use of __devexit_p
mmc: remove use of __devexit
...
Merge 'block-dev' branch.
I was going to just mark everything here for stable and leave it to the
3.8 merge window, but having decided on doing another -rc, I migth as
well merge it now.
This removes the bd_block_size_semaphore semaphore that was added in
this release to fix a race condition between block size changes and
block IO, and replaces it with atomicity guaratees in fs/buffer.c
instead, along with simplifying fs/block-dev.c.
This removes more lines than it adds, makes the code generally simpler,
and avoids the latency/rt issues that the block size semaphore
introduced for mount.
I'm not happy with the timing, but it wouldn't be much better doing this
during the merge window and then having some delayed back-port of it
into stable.
* block-dev:
blkdev_max_block: make private to fs/buffer.c
direct-io: don't read inode->i_blkbits multiple times
blockdev: remove bd_block_size_semaphore again
fs/buffer.c: make block-size be per-page and protected by the page lock
This reverts the block-device direct access code to the previous
unlocked code, now that fs/buffer.c no longer needs external locking.
With this, fs/block_dev.c is back to the original version, apart from a
whitespace cleanup that I didn't want to revert.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Rajiv Andrade <mail@srajiv.net>
Cc: Marcel Selhorst <tpmdd@selhorst.net>
Cc: Sirrix AG <tpmdd@sirrix.com>
Acked-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Rajiv Andrade <mail@srajiv.net>
Cc: Marcel Selhorst <tpmdd@selhorst.net>
Cc: Sirrix AG <tpmdd@sirrix.com>
Acked-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
use ~0UL for unsigned long variable initialization, instead of -1.
add check for hdp->hd_nirqs within 32 (HPET_MAX_TIMERS).
the type of irqp->interrupt_count is u8.
the git diff not display the relative lines below.
hdp->hd_irq[hdp->hd_nirqs] = irq;
hdp->hd_nirqs++;
please check source code to get more information.
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option so __devinitconst is no
longer needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option so __devinitdata is no
longer needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: David Airlie <airlied@linux.ie>
Cc: Kent Yoder <key@linux.vnet.ibm.com>
Cc: Rajiv Andrade <mail@srajiv.net>
Cc: Marcel Selhorst <tpmdd@selhorst.net>
Cc: Sirrix AG <tpmdd@sirrix.com>
Cc: openipmi-developer@lists.sourceforge.net
Cc: tpmdd-devel@lists.sourceforge.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Mattia Dongili <malattia@linux.it>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniel writes:
Highlights of this -next round:
- ivb fdi B/C fixes
- hsw sprite/plane offset fixes from Damien
- unified dp/hdmi encoder for hsw, finally external dp support on hsw
(Paulo)
- kill-agp and some other prep work in the gtt code from Ben
- some fb handling fixes from Ville
- massive pile of patches to align hsw VGA with the spec and make it
actually work (Paulo)
- pile of workarounds from Jesse, mostly for vlv, but also some other
related platforms
- start of a dev_priv reorg, that thing grew out of bounds and chaotic
- small bits&pieces all over the place, down to better error handling for
load-detect on gen2 (Chris, Jani, Mika, Zhenyu, ...)
On top of the previous pile (just copypasta):
- tons of hsw dp prep patches form Paulo
- round scheduled work items and timers to nearest second (Chris)
- some hw workarounds (Jesse&Damien)
- vlv dp support and related fixups (Vijay et al.)
- basic haswell dp support, not yet wired up for external ports (Paulo)
- edp support (Paulo)
- tons of refactorings to prepare for the above (Paulo)
- panel rework, unifiying code between lvds and edp panels (Jani)
- panel fitter scaling modes (Jani + Yuly Novikov)
- panel power improvements, should now work without the BIOS setting it up
- extracting some dp helpers from radeon/i915 and move them to
drm_dp_helper.c
- randome pile of workarounds (Damien, Ben, ...)
- some cleanups for the register restore code for suspend/resume
- secure batchbuffer support, should enable tear-free blits on gen6+
Chris)
- random smaller fixlets and cleanups.
* 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel: (231 commits)
drm/i915: Restore physical HWS_PGA after resume
drm/i915: Report amount of usable graphics memory in MiB
drm/i915/i2c: Track users of GMBUS force-bit
drm/i915: Allocate the proper size for contexts.
drm/i915: Update load-detect failure paths for modeset-rework
drm/i915: Clear unused fields of mode for framebuffer creation
drm/i915: Always calculate 8xx WM values based on a 32-bpp framebuffer
drm/i915: Fix sparse warnings in from AGP kill code
drm/i915: Missed lock change with rps lock
drm/i915: Move the remaining gtt code
drm/i915: flush system agent TLBs on SNB
drm/i915: Kill off now unused gen6+ AGP code
drm/i915: Calculate correct stolen size for GEN7+
drm/i915: Stop using AGP layer for GEN6+
drm/i915: drop the double-OP_STOREDW usage in blt_ring_flush
drm/i915: don't rewrite the GTT on resume v4
drm/i915: protect RPS/RC6 related accesses (including PCU) with a new mutex
drm/i915: put ring frequency and turbo setup into a work queue v5
drm/i915: don't block resume on fb console resume v2
drm/i915: extract l3_parity substruct from dev_priv
...
"Asynchronous" is misspelled in some comments. No code changes.
Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
After commit "TTY: move tty buffers to tty_port", the tty buffers are
not freed in some drivers. This is because tty_port_destructor is not
called whenever a tty_port is freed. This was an assumption I counted
with but was unfortunately untrue. So fix the drivers to fulfil this
assumption.
To be sure, the TTY buffers (and later some stuff) are gone along with
the tty_port, we have to call tty_port_destroy at tear-down places.
This is mostly where the structure containing a tty_port is freed.
This patch does exactly that -- put tty_port_destroy at those places.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This first patch serie start the cleanup of the header in mach
by moving all the platform data to include/linux/platform_data
and move the board header and drivers header next to them
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
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Merge tag 'for-3.8-at91_header_clean' of git://github.com/at91linux/linux-at91 into next/headers
From Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>:
arm: at91: mach header cleanup
This first patch serie start the cleanup of the header in mach
by moving all the platform data to include/linux/platform_data
and move the board header and drivers header next to them
* tag 'for-3.8-at91_header_clean' of git://github.com/at91linux/linux-at91:
arm: at91: move at91rm9200 rtc header in drivers/rtc
arm: at91: move reset controller header to arm/arm/mach-at91
arm: at91: move pit define to the driver
arm: at91: move at91_shdwc.h to arch/arm/mach-at91
arm: at91: move board header to arch/arm/mach-at91
arn: at91: move at91_tc.h to arch/arm/mach-at91
arm: at91 move at91_aic.h to arch/arm/mach-at91
arm: at91 move board.h to arch/arm/mach-at91
arm: at91: move platfarm_data to include/linux/platform_data/atmel.h
arm: at91: drop machine defconfig
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
v2: Accidently removed an ILK case in i9xx_setup (Nicely found by Chris)
CC: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by [v1] : Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
As a quick hack we make the old intel_gtt structure mutable so we can
fool a bunch of the existing code which depends on elements in that data
structure. We can/should try to remove this in a subsequent patch.
This should preserve the old gtt init behavior which upon writing these
patches seems incorrect. The next patch will fix these things.
The one exception is VLV which doesn't have the preserved flush control
write behavior. Since we want to do that for all GEN6+ stuff, we'll
handle that in a later patch. Mainstream VLV support doesn't actually
exist yet anyway.
v2: Update the comment to remove the "voodoo"
Check that the last pte written matches what we readback
v3: actually kill cache_level_to_agp_type since most of the flags will
disappear in an upcoming patch
v4: v3 was actually not what we wanted (Daniel)
Make the ggtt bind assertions better and stricter (Chris)
Fix some uncaught errors at gtt init (Chris)
Some other random stuff that Chris wanted
v5: check for i==0 in gen6_ggtt_bind_object to shut up gcc (Ben)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by [v4]: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Make the cache_level -> agp_flags conversion for pre-gen6 a
tad more robust by mapping everything != CACHE_NONE to the cached agp
flag - we have a 1:1 uncached mapping, but different modes of
cacheable (at least on later generations). Suggested by Chris Wilson.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The value stored in last_data must be primed for FIPS 140-2 purposes. Upon
first use, either on system startup or after an RNDCLEARPOOL ioctl, we
need to take an initial random sample, store it internally in last_data,
then pass along the value after that to the requester, so that consistency
checks aren't being run against stale and possibly known data.
CC: Herbert Xu <herbert@gondor.apana.org.au>
CC: "David S. Miller" <davem@davemloft.net>
CC: Matt Mackall <mpm@selenic.com>
CC: linux-crypto@vger.kernel.org
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Fix the following warnings in formatting debug output:
drivers/char/random.c: In function ‘xfer_secondary_pool’:
drivers/char/random.c:827: warning: format ‘%d’ expects type ‘int’, but argument 7 has type ‘size_t’
drivers/char/random.c: In function ‘account’:
drivers/char/random.c:859: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘size_t’
drivers/char/random.c:881: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘size_t’
drivers/char/random.c: In function ‘random_read’:
drivers/char/random.c:1141: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘ssize_t’
drivers/char/random.c:1145: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘ssize_t’
drivers/char/random.c:1145: warning: format ‘%d’ expects type ‘int’, but argument 6 has type ‘long unsigned int’
by using '%zd' instead of '%d' to properly denote ssize_t/size_t conversion.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Merging in Greg's tty tree including a cleanup patch needed by the OMAP serial
header cleanups.
* depends/tty: (305 commits)
tty/serial/8250: Make omap hardware workarounds local to 8250.h
serial/8250/8250_early: Prevent rounding error in uartclk
serial: samsung: use clk_prepare_enable and clk_disable_unprepare
TTY: Report warning when low_latency flag is wrongly used
console: use might_sleep in console_lock
TTY: move tty buffers to tty_port
TTY: add port -> tty link
TTY: tty_buffer, cache pointer to tty->buf
TTY: move TTY_FLUSH* flags to tty_port
TTY: n_tty, propagate n_tty_data
TTY: move ldisc data from tty_struct: locks
TTY: move ldisc data from tty_struct: read_* and echo_* and canon_* stuff
TTY: move ldisc data from tty_struct: bitmaps
TTY: move ldisc data from tty_struct: simple members
TTY: n_tty, add ldisc data to n_tty
TTY: audit, stop accessing tty->icount
TTY: n_tty, remove bogus checks
TTY: n_tty, simplify read_buf+echo_buf allocation
TTY: hci_ldisc, remove invalid check in open
TTY: ldisc, wait for idle ldisc in release
...
This moves the MTU timer driver from arch/arm/plat-nomadik
to drivers/clocksource and moves the header file to the
platform_data directory.
As this moves the last file being compiled to an object out
of arch/arm/plat-nomadik, we have to "turn off the light"
and delete the plat-nomadik directory, because it is not
allowed to have an empty Makefile in a plat-* directory.
This is probably also a desired side effect of depopulating
the arch/arm directory of drivers. Luckily we have just
deleted all the <plat/*> include files prior to this so
by moving the last one we may delete the directory.
After this all the Ux500 and Nomadik device drivers live
outside of the arch/arm hierarchy.
Cc: Alessandro Rubini <rubini@unipv.it>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch removed the tasklet and moved the wait queue into the
private structure. It also cleaned up the response CRQ path.
Signed-off-by: Ashley Lai <adlai@us.ibm.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
This will fix warnings like following when CONFIG_PM_SLEEP is not set:
warning: 'xxx_suspend' defined but not used [-Wunused-function]
warning: 'xxx_resume' defined but not used [-Wunused-function]
Because
SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)
Only references the callbacks on CONFIG_PM_SLEEP (instead of CONFIG_PM).
Cc: Mattia Dongili <malattia@linux.it>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
platform_device_unregister() only calls platform_device_del() and
platform_device_put(), thus use platform_device_unregister() to
simplify the code.
Also the documents in platform.c shows that platform_device_del
and platform_device_put must _only_ be externally called in error
cases. All other usage is a bug.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the /dev/mem driver to use phys_addr_t for physical
addresses. This is required on PAE systems, especially those that run
entirely out of >4G physical memory space.
Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull drm fixes from Dave Airlie:
"Fixes for i915, nouveau and radeon:
- i915: haswell stability, modeset rework fallout, ums fix
- nouveau: misc fixes from code rework
- radeon: pll rework fixes, more 2 level PTE cleanups.
- core: warning fixes on 32-bit."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (31 commits)
nouveau: fix warning on 32-bit build.
drm/nouveau/bios: fix typo in error message
drm/nouveau: only call ttm_agp_tt_create when __OS_HAS_AGP
drm/nv50/fb: fix double free of vram mm
drm/nouveau/pm: do not stop reclocking if failing to set the fan speed
drm/nouveau/pm: fix a typo related to the move to the therm subdev
drm/nouveau/hwmon: fix the initialization condition
drm: fix warning on 32-bit.
drm: radeon: fix printk format warning
drm/radeon: fix spelling typos in debugging output
drm/radeon: Don't destroy I2C Bus Rec in radeon_ext_tmds_enc_destroy().
drm/radeon: check if pcie gen 2 is already enabled (v2)
drm/radeon/cayman: set VM max pfn at MC init
drm/radeon: separate pt alloc from lru add
drm/radeon: don't add the IB pool to all VMs v2
drm/radeon: allocate page tables on demand v4
drm/radeon: update comments to clarify VM setup (v2)
drm/radeon: allocate PPLLs from low to high
drm/radeon: fix compilation with backlight disabled
drm/radeon: use %zu for formatting size_t
...
The IPMI spec defines a way to detect register spacing for PCI interfaces,
so implement it.
Signed-off-by: Steven Hsieh <sshsieh@broadcom.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There was a spot where the compiler couldn't tell some variables
would be set. So initialize them to make the warning go away.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
IPMI must be initialised before ACPI in order to ensure that any IPMI
services are available before ACPI driver initialisation attempts to use
any IPMI operation regions.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The module parameter that turns debugging mode (which basically means
printing a few extra lines during runtime) is in '#if 0' block. Forcing
everyone who would like to see how entropy is behaving on his system to
rebuild seems to be a little bit too harsh.
If we were concerned about speed, we could potentially turn 'debug' into a
static key, but I don't think it's necessary.
Drop the '#if 0' block to allow using the 'debug' parameter without rebuilding.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Daniel writes:
"- some register magic to fix hsw crw (Paulo&Ben)
- fix backlight destruction for cpu edp (Jani)
- fix gen ch7xxx dvo ->get_hw_state
- fixup the plane->pipe fixup code, the broken version massively angers
the modeset sanity checks
- kill pipe A quirk for i855gm, otherwise I get a black screen with the
above patch
- fixup for gem_get_page helper (Chris)
- fixup guardband clipping w/a (Ken), without this mesa master can erronously
drop vertices on snb, mesa 9.0 has the optimization reverted
- another pageflip vs. modeset fix
- kill bogus BUG_ON which broke ums+gem from Willy Tarreau (gasp, people
are still using this!)"
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: fix non-DP-D eDP backlight cleanup and module reload
drm/i915: HSW CRW stability magic
drm/i915/dvo-ch7xxx: fix get_hw_state
drm/i915: fixup the plane->pipe fixup code
drm/i915: rip out the pipe A quirk for i855gm
drm/i915: disable wc gtt pte mappings on gen2
drm/i915: fixup i915_gem_object_get_page inline helper
drm/i915: Disallow preallocation of requests
drm/i915: Set guardband clipping workaround bit in the right register.
drm/i915: paper over a pipe-enable vs pageflip race
drm/i915: remove useless BUG_ON which caused a regression in 3.5.
Drivers should not use cpu_is_omap or cpu_class_is_omap macros,
they should be private to the platform init code. And we'll be
removing plat/cpu.h and only have a private soc.h for the
arch/arm/*omap* code.
This patch is intended as preparation for the core omap changes
and removes the need to include plat/cpu.h from several drivers.
This is needed for the ARM common zImage support.
These changes are OK to do because:
- omap-rng.c does not need plat/cpu.h
- omap-aes.c and omap-sham.c get the proper platform_data
passed to them so they don't need extra checks in the driver
- omap-dma.c and omap-pcm.c can test the arch locally as
omap1 and omap2 cannot be compiled together because of
conflicting compiler flags
Cc: Deepak Saxena <dsaxena@plexity.net>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Venkatraman S <svenkatr@ti.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <djbw@fb.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: linux-kernel@vger.kernel.org
[tony@atomide.com: mmc changes folded in to an earlier patch]
Signed-off-by: Tony Lindgren <tony@atomide.com>
We always update bytes_written before we check signal_pending so it
follows that we can't get a signal return for 0 bytes so we don't
need to check in the singal path. The cases a signal causes an earlier
abort are handled before this and will not hit this path
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
It doesn't work since the gtt pte range sits in the middle of the mmio
bar. We didn't notice that since both my and Chris' gen2 machines
don't support PAT and hence all wc io mapping request will
automatically be demoted to uc.
This regression has been introduce in
commit edef7e685d
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri Sep 14 11:57:47 2012 +0100
agp/intel: Use a write-combining map for updating PTEs
Reported-by: Egbert Eich <eich@pdx.freedesktop.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=55834
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
A series of fixes (and in some cases, some cleanups):
Via Tony Lindgren:
- A collection of OMAP regression fixes, in particular because firmware
no longer sets up all pin states before starting the kernel.
- cpufreq fixes for OMAP (Rafael is on vacation and this was pre-agreed).
- A longer series of misc regression fixes and cleanups, warning removals,
etc for OMAP
From Arnd Bergmann:
- A series of warning fixes for various platforms (defconfig builds)
Misc:
- A couple of tegra fixes, one for i.MX, some vt8500 fixes, etc.
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A series of fixes (and in some cases, some cleanups):
Via Tony Lindgren:
- A collection of OMAP regression fixes, in particular because
firmware no longer sets up all pin states before starting the
kernel.
- cpufreq fixes for OMAP (Rafael is on vacation and this was
pre-agreed).
- A longer series of misc regression fixes and cleanups, warning
removals, etc for OMAP
From Arnd Bergmann:
- A series of warning fixes for various platforms (defconfig builds)
Misc:
- A couple of tegra fixes, one for i.MX, some vt8500 fixes, etc."
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (73 commits)
ARM: pxa: armcore: fix PCI PIO warnings
ARM: integrator: use __iomem pointers for MMIO, part 2
ARM: assabet: fix bogus warning in get_assabet_scr (again)
ARM: shmobile: mark shmobile_init_late as __init
ARM: integrator_cp: fix build failure
ARM: OMAP4/AM335x: hwmod: fix disable_module regression in hardreset handling
ARM: OMAP3: fix workaround for EMU clockdomain
arm/omap: Replace board_ref_clock with enum values
ARM: OMAP2+: remove duplicated include from board-omap3stalker.c
arch/arm/plat-omap/omap-pm-noop.c: Remove unecessary semicolon
arch/arm/mach-omap2: Remove unecessary semicolon
arch/arm/mach-omap1/devices.c: Remove unecessary semicolon
ARM/dts: omap5-evm: pinmux configuration for audio
ARM/dts: Add pinctrl driver entries for omap5
ARM/dts: omap4-panda: pinmux configuration for audio
ARM/dts: omap4-sdp: pinmux configuration for audio
ARM/dts: omap5-evm: Disable unused McBSP3
ARM/dts: omap4-sdp: Disable unused McBSP3
ARM/dts: omap4-panda: Disable unused audio IPs
ARM: OMAP: board-omap4panda: Pin mux configuration for audio needs
...
Pull block IO update from Jens Axboe:
"Core block IO bits for 3.7. Not a huge round this time, it contains:
- First series from Kent cleaning up and generalizing bio allocation
and freeing.
- WRITE_SAME support from Martin.
- Mikulas patches to prevent O_DIRECT crashes when someone changes
the block size of a device.
- Make bio_split() work on data-less bio's (like trim/discards).
- A few other minor fixups."
Fixed up silent semantic mis-merge as per Mikulas Patocka and Andrew
Morton. It is due to the VM no longer using a prio-tree (see commit
6b2dbba8b6ac: "mm: replace vma prio_tree with an interval tree").
So make set_blocksize() use mapping_mapped() instead of open-coding the
internal VM knowledge that has changed.
* 'for-3.7/core' of git://git.kernel.dk/linux-block: (26 commits)
block: makes bio_split support bio without data
scatterlist: refactor the sg_nents
scatterlist: add sg_nents
fs: fix include/percpu-rwsem.h export error
percpu-rw-semaphore: fix documentation typos
fs/block_dev.c:1644:5: sparse: symbol 'blkdev_mmap' was not declared
blockdev: turn a rw semaphore into a percpu rw semaphore
Fix a crash when block device is read and block size is changed at the same time
block: fix request_queue->flags initialization
block: lift the initial queue bypass mode on blk_register_queue() instead of blk_init_allocated_queue()
block: ioctl to zero block ranges
block: Make blkdev_issue_zeroout use WRITE SAME
block: Implement support for WRITE SAME
block: Consolidate command flag and queue limit checks for merges
block: Clean up special command handling logic
block/blk-tag.c: Remove useless kfree
block: remove the duplicated setting for congestion_threshold
block: reject invalid queue attribute values
block: Add bio_clone_bioset(), bio_clone_kmalloc()
block: Consolidate bio_alloc_bioset(), bio_kmalloc()
...
tpm_write calls tpm_transmit without checking the return value and
assigns the return value unconditionally to chip->pending_data, even if
it's an error value.
This causes three bugs.
So if we write to /dev/tpm0 with a tpm_param_size bigger than
TPM_BUFSIZE=0x1000 (e.g. 0x100a)
and a bufsize also bigger than TPM_BUFSIZE (e.g. 0x100a)
tpm_transmit returns -E2BIG which is assigned to chip->pending_data as
-7, but tpm_write returns that TPM_BUFSIZE bytes have been successfully
been written to the TPM, altough this is not true (bug #1).
As we did write more than than TPM_BUFSIZE bytes but tpm_write reports
that only TPM_BUFSIZE bytes have been written the vfs tries to write
the remaining bytes (in this case 10 bytes) to the tpm device driver via
tpm_write which then blocks at
/* cannot perform a write until the read has cleared
either via tpm_read or a user_read_timer timeout */
while (atomic_read(&chip->data_pending) != 0)
msleep(TPM_TIMEOUT);
for 60 seconds, since data_pending is -7 and nobody is able to
read it (since tpm_read luckily checks if data_pending is greater than
0) (#bug 2).
After that the remaining bytes are written to the TPM which are
interpreted by the tpm as a normal command. (bug #3)
So if the last bytes of the command stream happen to be a e.g.
tpm_force_clear this gets accidentally sent to the TPM.
This patch fixes all three bugs, by propagating the error code of
tpm_write and returning -E2BIG if the input buffer is too big,
since the response from the tpm for a truncated value is bogus anyway.
Moreover it returns -EBUSY to userspace if there is a response ready to be
read.
Signed-off-by: Peter Huewe <peter.huewe@infineon.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
This patch try to fix the S3 regression https://lkml.org/lkml/2012/10/5/433,
which includes below line:
[ 1554.684638] sysfs: cannot create duplicate filename '/devices/pnp0/00:0c/ppi'
The root cause is that ppi sysfs teardown code is MIA, so while S3 resume,
the ppi kobject will be created again upon existing one.
To make the tear down code simple, change the ppi subfolder creation from
using kobject_create_and_add to just using a named ppi attribute_group. Then
ppi sysfs teardown could be done with a simple sysfs_remove_group call.
Adjusted the name & return type for ppi sysfs init function.
Reported-by: Ben Guthro <ben@guthro.net>
Signed-off-by: Gang Wei <gang.wei@intel.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA,
currently it lost original meaning but still has some effects:
| effect | alternative flags
-+------------------------+---------------------------------------------
1| account as reserved_vm | VM_IO
2| skip in core dump | VM_IO, VM_DONTDUMP
3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP
4| do not mlock | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP
This patch removes reserved_vm counter from mm_struct. Seems like nobody
cares about it, it does not exported into userspace directly, it only
reduces total_vm showed in proc.
Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP.
remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP.
remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP.
[akpm@linux-foundation.org: drivers/vfio/pci/vfio_pci.c fixup]
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Carsten Otte <cotte@de.ibm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Morris <james.l.morris@oracle.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Kentaro Takeda <takedakn@nttdata.co.jp>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Venkatesh Pallipadi <venki@google.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is a series from Arnd that fixes a number of compiler warnings
when building defconfigs on ARM.
* late/fixes:
ARM: footbridge: nw_gpio_lock is raw_spin_lock
ARM: mv78xx0: correct addr_map_cfg __initdata annotation
ARM: footbridge: remove RTC_IRQ definition
ARM: soc: dependency warnings for errata
ARM: ks8695: __arch_virt_to_dma type handling
ARM: rpc: check device_register return code in ecard_probe
ARM: davinci: don't mark da850_register_cpufreq as __init
ARM: iop13xx: fix iq81340sc_atux_map_irq prototype
ARM: iop13xx: mark iop13xx_scan_bus as __devinit
ARM: mv78xx0: mark mv78xx0_timer_init as __init_refok
ARM: s3c24xx: fix multiple section mismatch warnings
ARM: at91: unused variable in at91_pm_verify_clocks
ARM: at91: skip at91_io_desc definition for NOMMU
ARM: pxa: work around duplicate definition of GPIO24_SSP1_SFRM
ARM: pxa: remove sharpsl_fatal_check function
ARM: pxa: define palmte2_pxa_keys conditionally
ARM: pxa: Wunused-result warning in viper board file
ARM: shark: fix shark_pci_init return code
Fixed trivial conflicts in arch/arm/mach-at91/setup.c.
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull virtio changes from Rusty Russell:
"New workflow: same git trees pulled by linux-next get sent straight to
Linus. Git is awkward at shuffling patches compared with quilt or mq,
but that doesn't happen often once things get into my -next branch."
* 'virtio-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (24 commits)
lguest: fix occasional crash in example launcher.
virtio-blk: Disable callback in virtblk_done()
virtio_mmio: Don't attempt to create empty virtqueues
virtio_mmio: fix off by one error allocating queue
drivers/virtio/virtio_pci.c: fix error return code
virtio: don't crash when device is buggy
virtio: remove CONFIG_VIRTIO_RING
virtio: add help to CONFIG_VIRTIO option.
virtio: support reserved vqs
virtio: introduce an API to set affinity for a virtqueue
virtio-ring: move queue_index to vring_virtqueue
virtio_balloon: not EXPERIMENTAL any more.
virtio-balloon: dependency fix
virtio-blk: fix NULL checking in virtblk_alloc_req()
virtio-blk: Add REQ_FLUSH and REQ_FUA support to bio path
virtio-blk: Add bio-based IO path for virtio-blk
virtio: console: fix error handling in init() function
tools: Fix pthread flag for Makefile of trace-agent used by virtio-trace
tools: Add guest trace agent as a user tool
virtio/console: Allocate scatterlist according to the current pipe size
...
This branch contains updates to OMAP and Marvell platforms (kirkwood,
dove, mvebu) that came in after we had done the big multiplatform merges,
so they were kept separate from the rest, and not separated into the
traditional topics of cleanup/driver/platform features.
For OMAP, the updates are:
- Runtime PM conversions for the GPMC and RNG IP blocks
- Preparation patches for the OMAP common clock framework conversion
- clkdev alias additions required by other drivers
- Performance Monitoring Unit (PMU) support for OMAP2, 3, and non-4430 OMAP4
- OMAP hwmod code and data improvements
- Preparation patches for the IOMMU runtime PM conversion
- Preparation patches for OMAP4 full-chip retention support
For Kirkwood/Dove/mvebu:
- New driver for "address decoder controller" for mvebu, which
is a piece of hardware that configures addressable devices and
peripherals. First user is the boot rom aperture on armada XP since
it is needed for SMP support.
- New device tree bindings for peripherals such as gpio-fan, iconnect
nand, mv_cesa and the above address decoder controller.
- Some defconfig updates, mostly to enable new DT boards and a few drivers.
- New drivers using the pincontrol subsystem for dove, kirkwood and mvebu
- New clean gpio driver for mvebu
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Merge tag 'soc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull late ARM soc platform updates from Olof Johansson:
"This branch contains updates to OMAP and Marvell platforms (kirkwood,
dove, mvebu) that came in after we had done the big multiplatform
merges, so they were kept separate from the rest, and not separated
into the traditional topics of cleanup/driver/platform features.
For OMAP, the updates are:
- Runtime PM conversions for the GPMC and RNG IP blocks
- Preparation patches for the OMAP common clock framework conversion
- clkdev alias additions required by other drivers
- Performance Monitoring Unit (PMU) support for OMAP2, 3, and
non-4430 OMAP4
- OMAP hwmod code and data improvements
- Preparation patches for the IOMMU runtime PM conversion
- Preparation patches for OMAP4 full-chip retention support
For Kirkwood/Dove/mvebu:
- New driver for "address decoder controller" for mvebu, which is a
piece of hardware that configures addressable devices and
peripherals. First user is the boot rom aperture on armada XP
since it is needed for SMP support.
- New device tree bindings for peripherals such as gpio-fan, iconnect
nand, mv_cesa and the above address decoder controller.
- Some defconfig updates, mostly to enable new DT boards and a few
drivers.
- New drivers using the pincontrol subsystem for dove, kirkwood and
mvebu
- New clean gpio driver for mvebu"
* tag 'soc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (98 commits)
ARM: mvebu: fix build breaks from multi-platform conversion
ARM: OMAP4460/4470: PMU: Enable PMU for OMAP4460/70
ARM: OMAP2+: PMU: Add runtime PM support
ARM: OMAP4430: PMU: prepare to create PMU device via HWMOD
ARM: OMAP2+: PMU: Convert OMAP2/3 devices to use HWMOD
ARM: OMAP3: hwmod data: Add debugss HWMOD data
ARM: OMAP2+: clockdomain/hwmod: add workaround for EMU clockdomain idle problems
ARM: OMAP: Add a timer attribute for timers that can interrupt the DSP
hwrng: OMAP: remove SoC restrictions from driver registration
ARM: OMAP: split OMAP1, OMAP2+ RNG device registration
hwrng: OMAP: convert to use runtime PM
hwrng: OMAP: store per-device data in per-device variables, not file statics
ARM: OMAP2xxx: hwmod/CM: add RNG integration data
ARM: OMAP2+: gpmc: minimal driver support
ARM: OMAP2+: gpmc: Adapt to HWMOD
ARM: OMAP2/3: hwmod data: add gpmc
ARM: OMAP4: hwmod data: add mmu hwmod for ipu and dsp
ARM: OMAP3: hwmod data: add mmu data for iva and isp
ARM: OMAP: iommu: fix including iommu.h without IOMMU_API selected
ARM: OMAP4: hwmod data: add missing HWMOD_NO_IDLEST flags to some PRCM IP blocks
...
bd31b85960 "locking, ARM: Annotate low level hw locks as raw"
made nw_gpio_lock a raw spinlock, but did not change all the
users in device drivers. This fixes the remaining ones.
sound/oss/waveartist.c: In function 'vnc_mute_spkr':
sound/oss/waveartist.c:1485:2: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type [enabled by default]
include/linux/spinlock.h:272:102: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *'
drivers/char/ds1620.c: In function 'netwinder_lock':
drivers/char/ds1620.c:77:2: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type [enabled by default]
include/linux/spinlock.h:272:102: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *'
drivers/char/nwflash.c: In function 'kick_open':
drivers/char/nwflash.c:620:2: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type [enabled by default]
include/linux/spinlock.h:272:102: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Pull crypto update from Herbert Xu:
- Optimised AES/SHA1 for ARM.
- IPsec ESN support in talitos and caam.
- x86_64/avx implementation of cast5/cast6.
- Add/use multi-algorithm registration helpers where possible.
- Added IBM Power7+ in-Nest support.
- Misc fixes.
Fix up trivial conflicts in crypto/Kconfig due to the sparc64 crypto
config options being added next to the new ARM ones.
[ Side note: cut-and-paste duplicate help texts make those conflicts
harder to read than necessary, thanks to git being smart about
minimizing conflicts and maximizing the common parts... ]
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (71 commits)
crypto: x86/glue_helper - fix storing of new IV in CBC encryption
crypto: cast5/avx - fix storing of new IV in CBC encryption
crypto: tcrypt - add missing tests for camellia and ghash
crypto: testmgr - make test_aead also test 'dst != src' code paths
crypto: testmgr - make test_skcipher also test 'dst != src' code paths
crypto: testmgr - add test vectors for CTR mode IV increasement
crypto: testmgr - add test vectors for partial ctr(cast5) and ctr(cast6)
crypto: testmgr - allow non-multi page and multi page skcipher tests from same test template
crypto: caam - increase TRNG clocks per sample
crypto, tcrypt: remove local_bh_disable/enable() around local_irq_disable/enable()
crypto: tegra-aes - fix error return code
crypto: crypto4xx - fix error return code
crypto: hifn_795x - fix error return code
crypto: ux500 - fix error return code
crypto: caam - fix error IDs for SEC v5.x RNG4
hwrng: mxc-rnga - Access data via structure
hwrng: mxc-rnga - Adapt clocks to new i.mx clock framework
crypto: caam - add IPsec ESN support
crypto: 842 - remove .cra_list initialization
Revert "[CRYPTO] cast6: inline bloat--"
...
Pull drm merge (part 1) from Dave Airlie:
"So first of all my tree and uapi stuff has a conflict mess, its my
fault as the nouveau stuff didn't hit -next as were trying to rebase
regressions out of it before we merged.
Highlights:
- SH mobile modesetting driver and associated helpers
- some DRM core documentation
- i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write
combined pte writing, ilk rc6 support,
- nouveau: major driver rework into a hw core driver, makes features
like SLI a lot saner to implement,
- psb: add eDP/DP support for Cedarview
- radeon: 2 layer page tables, async VM pte updates, better PLL
selection for > 2 screens, better ACPI interactions
The rest is general grab bag of fixes.
So why part 1? well I have the exynos pull req which came in a bit
late but was waiting for me to do something they shouldn't have and it
looks fairly safe, and David Howells has some more header cleanups
he'd like me to pull, that seem like a good idea, but I'd like to get
this merge out of the way so -next dosen't get blocked."
Tons of conflicts mostly due to silly include line changes, but mostly
mindless. A few other small semantic conflicts too, noted from Dave's
pre-merged branch.
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits)
drm/nv98/crypt: fix fuc build with latest envyas
drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
drm/nv41/vm: fix and enable use of "real" pciegart
drm/nv44/vm: fix and enable use of "real" pciegart
drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
drm/nouveau: store supported dma mask in vmmgr
drm/nvc0/ibus: initial implementation of subdev
drm/nouveau/therm: add support for fan-control modes
drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
drm/nouveau/therm: calculate the pwm divisor on nv50+
drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
drm/nouveau/therm: move thermal-related functions to the therm subdev
drm/nouveau/bios: parse the pwm divisor from the perf table
drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
drm/nouveau/therm: rework thermal table parsing
drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
drm/nouveau: fix pm initialization order
drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
drm/nouveau: log channel debug/error messages from client object rather than drm client
drm/nouveau: have drm debugging macros build on top of core macros
...
Pull security subsystem updates from James Morris:
"Highlights:
- Integrity: add local fs integrity verification to detect offline
attacks
- Integrity: add digital signature verification
- Simple stacking of Yama with other LSMs (per LSS discussions)
- IBM vTPM support on ppc64
- Add new driver for Infineon I2C TIS TPM
- Smack: add rule revocation for subject labels"
Fixed conflicts with the user namespace support in kernel/auditsc.c and
security/integrity/ima/ima_policy.c.
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (39 commits)
Documentation: Update git repository URL for Smack userland tools
ima: change flags container data type
Smack: setprocattr memory leak fix
Smack: implement revoking all rules for a subject label
Smack: remove task_wait() hook.
ima: audit log hashes
ima: generic IMA action flag handling
ima: rename ima_must_appraise_or_measure
audit: export audit_log_task_info
tpm: fix tpm_acpi sparse warning on different address spaces
samples/seccomp: fix 31 bit build on s390
ima: digital signature verification support
ima: add support for different security.ima data types
ima: add ima_inode_setxattr/removexattr function and calls
ima: add inode_post_setattr call
ima: replace iint spinblock with rwlock/read_lock
ima: allocating iint improvements
ima: add appraise action keywords and default rules
ima: integrity appraisal extension
vfs: move ima_file_free before releasing the file
...
Pull workqueue changes from Tejun Heo:
"This is workqueue updates for v3.7-rc1. A lot of activities this
round including considerable API and behavior cleanups.
* delayed_work combines a timer and a work item. The handling of the
timer part has always been a bit clunky leading to confusing
cancelation API with weird corner-case behaviors. delayed_work is
updated to use new IRQ safe timer and cancelation now works as
expected.
* Another deficiency of delayed_work was lack of the counterpart of
mod_timer() which led to cancel+queue combinations or open-coded
timer+work usages. mod_delayed_work[_on]() are added.
These two delayed_work changes make delayed_work provide interface
and behave like timer which is executed with process context.
* A work item could be executed concurrently on multiple CPUs, which
is rather unintuitive and made flush_work() behavior confusing and
half-broken under certain circumstances. This problem doesn't
exist for non-reentrant workqueues. While non-reentrancy check
isn't free, the overhead is incurred only when a work item bounces
across different CPUs and even in simulated pathological scenario
the overhead isn't too high.
All workqueues are made non-reentrant. This removes the
distinction between flush_[delayed_]work() and
flush_[delayed_]_work_sync(). The former is now as strong as the
latter and the specified work item is guaranteed to have finished
execution of any previous queueing on return.
* In addition to the various bug fixes, Lai redid and simplified CPU
hotplug handling significantly.
* Joonsoo introduced system_highpri_wq and used it during CPU
hotplug.
There are two merge commits - one to pull in IRQ safe timer from
tip/timers/core and the other to pull in CPU hotplug fixes from
wq/for-3.6-fixes as Lai's hotplug restructuring depended on them."
Fixed a number of trivial conflicts, but the more interesting conflicts
were silent ones where the deprecated interfaces had been used by new
code in the merge window, and thus didn't cause any real data conflicts.
Tejun pointed out a few of them, I fixed a couple more.
* 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (46 commits)
workqueue: remove spurious WARN_ON_ONCE(in_irq()) from try_to_grab_pending()
workqueue: use cwq_set_max_active() helper for workqueue_set_max_active()
workqueue: introduce cwq_set_max_active() helper for thaw_workqueues()
workqueue: remove @delayed from cwq_dec_nr_in_flight()
workqueue: fix possible stall on try_to_grab_pending() of a delayed work item
workqueue: use hotcpu_notifier() for workqueue_cpu_down_callback()
workqueue: use __cpuinit instead of __devinit for cpu callbacks
workqueue: rename manager_mutex to assoc_mutex
workqueue: WORKER_REBIND is no longer necessary for idle rebinding
workqueue: WORKER_REBIND is no longer necessary for busy rebinding
workqueue: reimplement idle worker rebinding
workqueue: deprecate __cancel_delayed_work()
workqueue: reimplement cancel_delayed_work() using try_to_grab_pending()
workqueue: use mod_delayed_work() instead of __cancel + queue
workqueue: use irqsafe timer for delayed_work
workqueue: clean up delayed_work initializers and add missing one
workqueue: make deferrable delayed_work initializer names consistent
workqueue: cosmetic whitespace updates for macro definitions
workqueue: deprecate system_nrt[_freezable]_wq
workqueue: deprecate flush[_delayed]_work_sync()
...
- A long-coming conversion of various platforms to a common LED
infrastructure
- AT91 is moved over to use the newer MCI driver for MMC
- Pincontrol conversions for samsung platforms
- DT bindings for gscaler on samsung
- i2c driver fixes for tegra, acked by i2c maintainer
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Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc driver specific changes from Olof Johansson:
- A long-coming conversion of various platforms to a common LED
infrastructure
- AT91 is moved over to use the newer MCI driver for MMC
- Pincontrol conversions for samsung platforms
- DT bindings for gscaler on samsung
- i2c driver fixes for tegra, acked by i2c maintainer
Fix up conflicts as per Olof.
* tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
drivers: bus: omap_l3: use resources instead of hardcoded irqs
pinctrl: exynos: Fix wakeup IRQ domain registration check
pinctrl: samsung: Uninline samsung_pinctrl_get_soc_data
pinctrl: exynos: Correct the detection of wakeup-eint node
pinctrl: exynos: Mark exynos_irq_demux_eint as inline
pinctrl: exynos: Handle only unmasked wakeup interrupts
pinctrl: exynos: Fix typos in gpio/wkup _irq_mask
pinctrl: exynos: Set pin function to EINT in irq_set_type of GPIO EINTa
drivers: bus: Move the OMAP interconnect driver to drivers/bus/
i2c: tegra: dynamically control fast clk
i2c: tegra: I2_M_NOSTART functionality not supported in Tegra20
ARM: tegra: clock: remove unused clock entry for i2c
ARM: tegra: clock: add connection name in i2c clock entry
i2c: tegra: pass proper name for getting clock
ARM: tegra: clock: add i2c fast clock entry in clock table
ARM: EXYNOS: Adds G-Scaler device from Device Tree
ARM: EXYNOS: Add clock support for G-Scaler
ARM: EXYNOS: Enable pinctrl driver support for EXYNOS4 device tree enabled platform
ARM: dts: Add pinctrl node entries for SAMSUNG EXYNOS4210 SoC
ARM: EXYNOS: skip wakeup interrupt setup if pinctrl driver is used
...
As we skipped the merge window for 3.6-rc1 for the tty tree, everything
is now settled down and working properly, so we are ready for 3.7-rc1.
Here's the patchset, it's big, but the large changes are removing a
firmware file and adding a staging tty driver (it depended on the tty
core changes, so it's going through this tree instead of the staging
tree.)
All of these patches have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY changes from Greg Kroah-Hartman:
"As we skipped the merge window for 3.6-rc1 for the tty tree,
everything is now settled down and working properly, so we are ready
for 3.7-rc1. Here's the patchset, it's big, but the large changes are
removing a firmware file and adding a staging tty driver (it depended
on the tty core changes, so it's going through this tree instead of
the staging tree.)
All of these patches have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fix up more-or-less trivial conflicts in
- drivers/char/pcmcia/synclink_cs.c:
tty NULL dereference fix vs tty_port_cts_enabled() helper function
- drivers/staging/{Kconfig,Makefile}:
add-add conflict (dgrp driver added close to other staging drivers)
- drivers/staging/ipack/devices/ipoctal.c:
"split ipoctal_channel from iopctal" vs "TTY: use tty_port_register_device"
* tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (235 commits)
tty/serial: Add kgdb_nmi driver
tty/serial/amba-pl011: Quiesce interrupts in poll_get_char
tty/serial/amba-pl011: Implement poll_init callback
tty/serial/core: Introduce poll_init callback
kdb: Turn KGDB_KDB=n stubs into static inlines
kdb: Implement disable_nmi command
kernel/debug: Mask KGDB NMI upon entry
serial: pl011: handle corruption at high clock speeds
serial: sccnxp: Make 'default' choice in switch last
serial: sccnxp: Remove mask termios caps for SW flow control
serial: sccnxp: Report actual baudrate back to core
serial: samsung: Add poll_get_char & poll_put_char
Powerpc 8xx CPM_UART setting MAXIDL register proportionaly to baud rate
Powerpc 8xx CPM_UART maxidl should not depend on fifo size
Powerpc 8xx CPM_UART too many interrupts
Powerpc 8xx CPM_UART desynchronisation
serial: set correct baud_base for EXSYS EX-41092 Dual 16950
serial: omap: fix the reciever line error case
8250: blacklist Winbond CIR port
8250_pnp: do pnp probe before legacy probe
...
Here is the "big" char/misc driver tree update for the 3.7-rc1 merge
window.
Nothing major, just a number of driver updates and fixes, all of which
have been in the linux-next releases for a while now either in my tree,
or in Andrew's (the lis3l driver changes came from his tree last week).
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver merge from Greg Kroah-Hartman:
"Here is the "big" char/misc driver tree update for the 3.7-rc1 merge
window.
Nothing major, just a number of driver updates and fixes, all of which
have been in the linux-next releases for a while now either in my
tree, or in Andrew's (the lis3l driver changes came from his tree last
week).
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'char-misc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (52 commits)
drivers/misc/lis3lv02d/lis3lv02d_i2c.c: add lis3lv02d device tree init
drivers/misc/lis3lv02d/lis3lv02d_spi.c: add lis3lv02d device tree init
drivers/misc/lis3lv02d: remove lis3lv02d driver DT init
drivers/misc/lis3lv02d/lis3lv02d_spi.c: add DT matching table passthru code
drivers/misc/lis3lv02d: add generic DT matching code
lis3lv02d: fix some comments specific to lis331dlh driver
MISC: hpilo, remove pci_disable_device
pcmcia: synclink_cs: fix potential tty NULL dereference
drivers/char/mmtimer.c: Remove useless kfree
drivers/char: removes unnecessary semicolon
char/misc: remove CONFIG_EXPERIMENTAL dependencies
mei: don't print buffer as a string
mei: struct mei_message_data doesn't have to be packed
mei: add error messages for open count errors
misc: use module_spi_driver
tifm: use module_pci_driver
misc/at25, dt: Improve at25 SPI eeprom device tree bindings.
mei: add lynx point pci device ids
mei: fix max number of open handles
mei: rename struct pci_dev *mei_device to mei_pdev
...
If register_virtio_driver() fails, virtio-ports class is not destroyed.
The patch adds error handling of register_virtio_driver().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Allocate scatterlist according to the current pipe size.
This allows splicing bigger buffer if the pipe size has
been changed by fcntl.
Changes in v2:
- Just a minor fix for avoiding a confliction with previous patch.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Wait if the port is not connected or full on splice
like as write is doing.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Add a failback memcpy path for unstealable pipe buffer.
If buf->ops->steal() fails, virtio-serial tries to
copy the page contents to an allocated page, instead
of just failing splice().
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Enable to use splice_write from pipe to virtio-console port.
This steals pages from pipe and directly send it to host.
Note that this may accelerate only the guest to host path.
Changes in v2:
- Use GFP_KERNEL instead of GFP_ATOMIC in syscall context function.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Merge tag 'v3.6-rc7' into next
Linux 3.6-rc7
Requested by David Howells so he can merge his key susbsystem work into
my tree with requisite -linus changesets.
tty_port_tty_get() can return NULL after port hangup that may happen anytime.
The patch adds checks that tty_port_tty_get() returns nonNULL around places
where tty is actually used.
I have no actual hardware to test the patch, so I have updated rx side
processing from common sense only.
v2: rx handling updated according Alan Cox feedback.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove useless kfree() and clean up code related to the removal.
The semantic patch that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
position p1,p2;
expression x;
@@
if (x@p1 == NULL) { ... kfree@p2(x); ... return ...; }
@unchanged exists@
position r.p1,r.p2;
expression e <= r.x,x,e1;
iterator I;
statement S;
@@
if (x@p1 == NULL) { ... when != I(x,...) S
when != e = e1
when != e += e1
when != e -= e1
when != ++e
when != --e
when != e++
when != e--
when != &e
kfree@p2(x); ... return ...; }
@ok depends on unchanged exists@
position any r.p1;
position r.p2;
expression x;
@@
... when != true x@p1 == NULL
kfree@p2(x);
@depends on !ok && unchanged@
position r.p2;
expression x;
@@
*kfree@p2(x);
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The kernel may crash when block size is changed and I/O is issued
simultaneously.
Because some subsystems (udev or lvm) may read any block device anytime,
the bug actually puts any code that changes a block device size in
jeopardy.
The crash can be reproduced if you place "msleep(1000)" to
blkdev_get_blocks just before "bh->b_size = max_blocks <<
inode->i_blkbits;".
Then, run "dd if=/dev/ram0 of=/dev/null bs=4k count=1 iflag=direct"
While it is waiting in msleep, run "blockdev --setbsz 2048 /dev/ram0"
You get a BUG.
The direct and non-direct I/O is written with the assumption that block
size does not change. It doesn't seem practical to fix these crashes
one-by-one there may be many crash possibilities when block size changes
at a certain place and it is impossible to find them all and verify the
code.
This patch introduces a new rw-lock bd_block_size_semaphore. The lock is
taken for read during I/O. It is taken for write when changing block
size. Consequently, block size can't be changed while I/O is being
submitted.
For asynchronous I/O, the patch only prevents block size change while
the I/O is being submitted. The block size can change when the I/O is in
progress or when the I/O is being finished. This is acceptable because
there are no accesses to block size when asynchronous I/O is being
finished.
The patch prevents block size changing while the device is mapped with
mmap.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Remove the SoC restriction code from the OMAP RNG driver. The
integration code in arch/arm/*omap* should handle this. The device
shouldn't be created if it doesn't exist on the currently-booted SoC.
This allows us to remove some OMAP-specific cpu_is_omap*() calls from
the driver. Also, if other OMAP chips have RNGs that can be used
by Linux, there will be no need to modify the driver.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Convert the OMAP onboard hardware RNG driver to use runtime PM.
This allows us to remove some OMAP-specific cpu_is_omap*() calls from
the RNG driver.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Encapsulate all of the RNG per-device state into a single per-device
structure record, as opposed to a set of per-driver file variables.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Rewriting the PTE entries using an WC mapping is roughly an order of
magnitude faster than through the uncached mapping. This makes an
observable difference on workloads that cycle through large numbers of
buffers, for example Chromium using ShmPixmaps where virtually all the
CPU time is currently spent rebinding the userptr.
v2: Limit the WC mapping to older generations as we have observed that
the TLB invalidation on SandyBridge+ is unreliable with WC updates.
See i-g-t/tests/gem_gtt_cpu_tlb
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Rather than have multiple data structures for describing our page layout
in conjunction with the array of pages, we can migrate all users over to
a scatterlist.
One major advantage, other than unifying the page tracking structures,
this offers is that we replace the vmalloc'ed array (which can be up to
a megabyte in size) with a chain of individual pages which helps reduce
memory pressure.
The disadvantage is that we then do not have a simple array to iterate,
or to access randomly. The common case for this is in the relocation
processing, which will typically fit within a single scatterlist page
and so be almost the same cost as the simple array. For iterating over
the array, the extra function call could be optimised away, but in
reality is an insignificant cost of either binding the pages, or
performing the pwrite/pread.
v2: Fix drm_clflush_sg() to not invoke wbinvd as well! And fix the
trivial compile error from rebasing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
As discussed at the kernel summit this year, CONFIG_EXPERIMENTAL means
nothing, so let's get rid of it.
Cc: Kees Cook <keescook@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This branch contains a number of fixes and cleanups to the Tegra I2C
driver related to clocks. These are based on the common clock conversion
in order to avoid duplicating the clock driver changes before and after
the conversion. Finally, a bug-fix related to I2C_M_NOSTART is included.
This branch is based on previous pull request tegra-for-3.7-common-clk.
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Merge tag 'tegra-for-3.7-drivers-i2c' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/drivers
From Stephen Warren:
ARM: tegra: i2c driver enhancements mostly related to clocking
This branch contains a number of fixes and cleanups to the Tegra I2C
driver related to clocks. These are based on the common clock conversion
in order to avoid duplicating the clock driver changes before and after
the conversion. Finally, a bug-fix related to I2C_M_NOSTART is included.
This branch is based on previous pull request tegra-for-3.7-common-clk.
* tag 'tegra-for-3.7-drivers-i2c' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
i2c: tegra: dynamically control fast clk
i2c: tegra: I2_M_NOSTART functionality not supported in Tegra20
ARM: tegra: clock: remove unused clock entry for i2c
ARM: tegra: clock: add connection name in i2c clock entry
i2c: tegra: pass proper name for getting clock
ARM: tegra: clock: add i2c fast clock entry in clock table
ARM: Tegra: Add smp_twd clock for Tegra20
ARM: tegra: cpu-tegra: explicitly manage re-parenting
ARM: tegra: fix overflow in tegra20_pll_clk_round_rate()
ARM: tegra: Fix data type for io address
ARM: tegra: remove tegra_timer from tegra_list_clks
ARM: tegra30: clocks: fix the wrong tegra_audio_sync_clk_ops name
ARM: tegra: clocks: separate tegra_clk_32k_ops from Tegra20 and Tegra30
ARM: tegra: Remove duplicate code
ARM: tegra: Port tegra to generic clock framework
ARM: tegra: Add clk_tegra structure and helper functions
ARM: tegra: Rename tegra20 clock file
ARM: tegra20: Separate out clk ops and clk data
ARM: tegra30: Separate out clk ops and clk data
ARM: tegra: fix U16 divider range check
...
+ sync to v3.6-rc4
Resolved remove/modify conflict in arch/arm/mach-sa1100/leds-hackkit.c
caused by the sync with v3.6-rc4.
Signed-off-by: Olof Johansson <olof@lixom.net>
* commit 'v3.6-rc5': (1098 commits)
Linux 3.6-rc5
HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured
Remove user-triggerable BUG from mpol_to_str
xen/pciback: Fix proper FLR steps.
uml: fix compile error in deliver_alarm()
dj: memory scribble in logi_dj
Fix order of arguments to compat_put_time[spec|val]
xen: Use correct masking in xen_swiotlb_alloc_coherent.
xen: fix logical error in tlb flushing
xen/p2m: Fix one-off error in checking the P2M tree directory.
powerpc: Don't use __put_user() in patch_instruction
powerpc: Make sure IPI handlers see data written by IPI senders
powerpc: Restore correct DSCR in context switch
powerpc: Fix DSCR inheritance in copy_thread()
powerpc: Keep thread.dscr and thread.dscr_inherit in sync
powerpc: Update DSCR on all CPUs when writing sysfs dscr_default
powerpc/powernv: Always go into nap mode when CPU is offline
powerpc: Give hypervisor decrementer interrupts their own handler
powerpc/vphn: Fix arch_update_cpu_topology() return value
ARM: gemini: fix the gemini build
...
Conflicts:
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
drivers/rapidio/devices/tsi721.c
acpi_os_map_memory expects its return value to be in the __iomem address
space. Tag the variable we're using as such and use memcpy_fromio to
avoid further sparse warnings.
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
In current driver, everytime we need to access the rng clock
,ie to enable or disable it, a call to clk_get is done.
This is not correct and the preferred way is to provide a rng data structure
that could be used for accessing rng resources.
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
If register_virtio_driver() fails, virtio-ports class is not destroyed.
The patch adds error handling of register_virtio_driver().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Error handling of parport_register_driver() in ppdev_init()
is broken because it deallocates all resources but still
returns zero.
Currently parport_register_driver() always succeeds.
Nevertheless it is worth to fix the issue.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In most of the time, the driver needs to check if the cts flow control
is enabled. But now, the driver checks the ASYNC_CTS_FLOW flag manually,
which is not a grace way. So add a new wraper function to make the code
tidy and clean.
Signed-off-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch declares the internal struct and functions as static to provide
more security.
Signed-off-by: Xiaoyan Zhang <xiaoyan.zhang@intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
The Physical Presence Interface enables the OS and the BIOS to cooperate and
provides a simple and straightforward platform user experience for
administering the TPM without sacrificing security.
V2: separate the patch out in a separate source file,
add #ifdef CONFIG_ACPI so it compiles out on ppc,
use standard error instead of ACPI error as return code of show/store fns.
V3: move #ifdef CONFIG_ACPI from .c file to .h file.
V4: move tpm_ppi code from tpm module to tpm_bios module.
V5: modify sys_add_ppi() so that ppi_attr_grp doesn't need to be exported
Signed-off-by: Xiaoyan Zhang <xiaoyan.zhang@intel.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
In drivers/char/tpm/tpm_acpi.c::read_log() we call
acpi_os_map_memory(). That call may fail for a number of reasons
(invalid address, out of memory etc). If the call fails it returns
NULL and we just pass that to memcpy() unconditionally, which will go
bad when it tries to dereference the pointer.
Unfortunately we just get NULL back, so we can't really tell the user
exactely what went wrong, but we can at least avoid crashing and
return an error (-EIO seemed more generic and more suitable here than
-ENOMEM or something else, so I picked that).
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
This patch retrieves the event log data from the device tree
during file open. The event log data will then displayed through
securityfs.
Signed-off-by: Ashley Lai <adlai@us.ibm.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
This patch adds a new device driver to support IBM virtual TPM
(vTPM) for PPC64. IBM vTPM is supported through the adjunct
partition with firmware release 740 or higher. With vTPM
support, each lpar is able to have its own vTPM without the
physical TPM hardware.
This driver provides TPM functionalities by communicating with
the vTPM adjunct partition through Hypervisor calls (Hcalls)
and Command/Response Queue (CRQ) commands.
Signed-off-by: Ashley Lai <adlai@us.ibm.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Replace list_for_each() + pci_dev_b() with the simpler
list_for_each_entry().
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
CC: David Airlie <airlied@linux.ie>
The tpm_tis driver doesn't use tpm_tis_resume except when PM is
configured and doesn't make use of tpm_tis_reenable_interrupts except
when PM or PNP is configured.
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Moved the atomic_set of the data_pending variable until after the
tpm_read has completed processing. The existing code had a window of
time where a second write to the driver could clobber the tpm command
buffer.
Also fixed an issue where if close was called on the tpm device before a
read completed, the tpm command buffer would be returned to the OS,
which could contain sensitive information.
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
This driver will make use of any available TPM chip on the system as a
hwrng source.
Acked-by: David Safford <safford@linux.vnet.ibm.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Move the tpm_get_random api from the trusted keys code into the TPM
device driver itself so that other callers can make use of it. Also,
change the api slightly so that the number of bytes read is returned in
the call, since the TPM command can potentially return fewer bytes than
requested.
Acked-by: David Safford <safford@linux.vnet.ibm.com>
Reviewed-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Break ACPI-specific pieces of the event log handling into their own file
and create tpm_eventlog.[ch] to store common event log handling code.
This will be required to integrate future event log sources on platforms
without ACPI tables.
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
This patch adds a driver to support Infineon's SLB 9635 TT 1.2 Soft I2C TPMs
which follow the TGC TIS 1.2 TPM specification[1] and Infineon's I2C Protocol
Stack Specification 0.20.
The I2C Protocol Stack Specification is a simple adaption of the LPC TIS
Protocol to the I2C Bus.
The I2C TPMs can be used when LPC Bus is not available (i.e. non x86
architectures like ARM).
The driver is based on the tpm_tis.c driver by Leendert van Dorn and Kyleen
Hall and has quite similar functionality.
Tested on Nvidia ARM Tegra2 Development Platform and Beagleboard (ARM OMAP)
Tested with the Trousers[2] TSS API Testsuite v 0.3 [3]
Compile-tested on x86 (32/64-bit)
Updates since version 2.1.4:
- included "Lock the I2C adapter for a sequence of requests", by Bryan Freed
- use __i2c_transfer instead of own implementation of unlocked i2c_transfer
- use struct dev_pm_ops for power management via SIMPLE_DEV_PM_OPS
Updates since version 2.1.3:
- use proper probing mechanism
* either add the tpm using I2C_BOARD_INFO to your board file or probe it
* during runtime e.g on BeagleBoard using :
* "echo tpm_i2c_infineon 0x20 > /sys/bus/i2c/devices/i2c-2/new_device"
- fix possible endless loop if hardware misbehaves
- improved return codes
- consistent spelling i2c/tpm -> I2C/TPM
- remove hardcoded sleep values and msleep usage
- removed debug statements
- added check for I2C functionality
- renaming to tpm_i2c_infineon
Updates since version 2.1.2:
- added sysfs entries for duration and timeouts
- updated to new tpm_do_selftest
Updates since version 2.1.0:
- improved error handling
- implemented workarounds needed by the tpm
- fixed typos
References:
[1]
http://www.trustedcomputinggroup.org/resources/pc_client_work_group_pc_client_
specific_tpm_interface_specification_tis_version_12/
[2] http://trousers.sourceforge.net/
[3]
http://sourceforge.net/projects/trousers/files/TSS%20API%20test%20suite/0.3/
Reviewed-by: Andi Shyti <andi.shyti@gmail.com>
Acked-by: Marcel Selhorst <tpmdd@selhorst.net>
Signed-off-by: Peter Huewe <peter.huewe@infineon.com>
Signed-off-by: Bryan Freed <bfreed@chromium.org>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
flush[_delayed]_work_sync() are now spurious. Mark them deprecated
and convert all users to flush[_delayed]_work().
If you're cc'd and wondering what's going on: Now all workqueues are
non-reentrant and the regular flushes guarantee that the work item is
not pending or running on any CPU on return, so there's no reason to
use the sync flushes at all and they're going away.
This patch doesn't make any functional difference.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Mattia Dongili <malattia@linux.it>
Cc: Kent Yoder <key@linux.vnet.ibm.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Bryan Wu <bryan.wu@canonical.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-wireless@vger.kernel.org
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Petr Vandrovec <petr@vandrovec.name>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Avi Kivity <avi@redhat.com>
devm_kfree and devm_iounmap should not have to be explicitly used.
The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression x,d;
@@
x = devm_kzalloc(...)
...
?-devm_kfree(d,x);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
They've changed it ... for no apparent reason. Meh.
V2: remove unused 'is_hsw' field.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We changed these from alloc_tty_driver() to tty_alloc_driver() so the
error handling needs to modified to check for IS_ERR() instead of NULL.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert a 0 error return code to a negative one, as returned elsewhere in the
function.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier ret;
expression e,e1,e2,e3,e4,x;
@@
(
if (\(ret != 0\|ret < 0\) || ...) { ... return ...; }
|
ret = 0
)
... when != ret = e1
*x = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\|ioremap\|ioremap_nocache\|devm_ioremap\|devm_ioremap_nocache\)(...);
... when != x = e2
when != ret = e3
*if (x == NULL || ...)
{
... when != ret = e4
* return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Mark Gross <mark.gross@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit "TTY: synclink_cs, use dynamic tty devices" added a call to
tty_port_register_device with a proper device as the last argument.
But it was not correct and it causes build failures:
synclink_cs.c: In function ‘mgslpc_add_device’:
synclink_cs.c:2735:16: error: request for member ‘dev’ in something not a structure or union
info->p_dev is a pointer, so act as that.
I wonder why my build scripts did not notice. I have to re-check them.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull drm fixes from Dave Airlie:
"Radeon and intel fixes mostly, one fix to the mgag200 driver to not
hang on certain server variants."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (32 commits)
drm/radeon: fix typo in function header comment
drm/radeon/kms: implement timestamp userspace query (v2)
drm/radeon/kms: add MSAA texture support for r600-evergreen
drm/radeon/kms: reorder code in r600_check_texture_resource
drm/radeon: fence virtual address and free it once idle v4
drm/radeon: fix some missing parens in asic macros
drm/radeon: add some new SI pci ids
drm/radeon: fix ordering in pll picking on dce4+
drm/radeon: do not reenable crtc after moving vram start address
drm/radeon: fix bank tiling parameters on cayman
drm/radeon: fix bank tiling parameters on evergreen
drm/radeon: fix bank tiling parameters on SI
drm/radeon: properly handle crtc powergating
drm/radeon: properly handle SS overrides on TN (v2)
drm/radeon/dce4+: set a more reasonable cursor watermark
drm/radeon: fix handling for ddc type 5 on combios
drm/mgag200: fix G200ER pll picking algorithm
drm/edid: Fix potential memory leak in edid_load()
drm/udl: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(.. [1]
drm/radeon/kms: allow "invalid" DB formats as a means to disable DB
...
* use <tab> for indentation
* add KERN_* to printks
* no more assignments in if's like if ((rc = function()))
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This allows us to provide the tty layer with information about
tty_port for each link. And it also allows us to get rid of the
remove_device loop in synclink_cs_exit because we had to reorder
pcmcia and tty driver registration in init. This was because we need
to have serial_driver initialized when calling
tty_port_register_device from pcmcia ->probe.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We will need to change the order of tty and pcmcia drivers
initializations (see the reason later in this series). And the fail
path handling is currently performed in a separate function that as
well takes care of proper deinitialization in module_exit. It is hard
to read and will need to be adjusted by our changes anyway. Instead,
get rid of this helper function and do the fail paths handling
directly in the init function. (And move the body of the function to
module_exit.)
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fabio Estevam