Pull x86 fixes from Peter Anvin:
"Several boot fixes (MacBook, legacy EFI bootloaders), another
please-don't-brick fix, and some minor stuff."
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Do not try to sync identity map for non-mapped pages
x86, doc: Be explicit about what the x86 struct boot_params requires
x86: Don't clear efi_info even if the sentinel hits
x86, mm: Make sure to find a 2M free block for the first mapped area
x86: Fix 32-bit *_cpu_data initializers
efivarfs: return accurate error code in efivarfs_fill_super()
efivars: efivarfs_valid_name() should handle pstore syntax
efi: be more paranoid about available space when creating variables
iommu, x86: Add DMA remap fault reason
x86, smpboot: Remove unused variable
Pull drm fixes from Dave Airlie:
"Misc radeon, nouveau, mgag200 and intel fixes.
The intel fixes should contain the fix for the touchpad on the
Chromebook - hey I'm an input maintainer now!"
Hate to pee on your parade, Dave, but I don't think being an input
maintainer is necessarily something to strive for..
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (25 commits)
drm/tegra: drop "select DRM_HDMI"
drm: Documentation typo fixes
drm/mgag200: Bug fix: Renesas board now selects native resolution.
drm/mgag200: Reject modes that are too big for VRAM
drm/mgag200: 'fbdev_list' in 'struct mga_fbdev' is not used
drm/radeon: don't check mipmap alignment if MIP_ADDRESS is FMASK
drm/radeon: skip MC reset as it's probably not hung
drm/radeon: add primary dac adj quirk for R200 board
drm/radeon: don't set hpd, afmt interrupts when interrupts are disabled
drm/i915: Turn off hsync and vsync on ADPA when disabling crt
drm/i915: Fix incorrect definition of ADPA HSYNC and VSYNC bits
drm/i915: also disable south interrupts when handling them
drm/i915: enable irqs earlier when resuming
drm/i915: Increase the RC6p threshold.
DRM/i915: On G45 enable cursor plane briefly after enabling the display plane.
drm/nv50-: prevent some races between modesetting and page flipping
drm/nouveau/i2c: drop parent refcount when creating ports
drm/nv84: fix regression in page flipping
drm/nouveau: Fix typo in init_idx_addr_latched().
drm/nouveau: Disable AGP on PowerPC again.
...
- Two fixes for the new intel_pstate driver from Dirk Brandewie.
- Fix for incorrect usage of the .find_bridge() callback from struct
acpi_bus_type in the USB core and subsequent removal of that
callback from Rafael J. Wysocki.
- ACPI processor driver cleanups from Chen Gang and Syam Sidhardhan.
- ACPI initialization and error messages fix from Joe Perches.
- Operating Performance Points documentation improvement from
Nishanth Menon.
- Fixes for memory leaks and potential concurrency issues and sysfs
attributes leaks during device removal in the core device PM QoS
code from Rafael J. Wysocki.
- Calxeda Highbank cpufreq driver simplification from Emilio López.
- cpufreq comment cleanup from Namhyung Kim.
- Fix for a section mismatch in Calxeda Highbank interprocessor
communication code from Mark Langsdorf (this is not a PM fix
strictly speaking, but the code in question went in through the
PM tree).
/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)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=9vaj
-----END PGP SIGNATURE-----
Merge tag 'pm+acpi-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael J Wysocki:
- Two fixes for the new intel_pstate driver from Dirk Brandewie.
- Fix for incorrect usage of the .find_bridge() callback from struct
acpi_bus_type in the USB core and subsequent removal of that callback
from Rafael J Wysocki.
- ACPI processor driver cleanups from Chen Gang and Syam Sidhardhan.
- ACPI initialization and error messages fix from Joe Perches.
- Operating Performance Points documentation improvement from Nishanth
Menon.
- Fixes for memory leaks and potential concurrency issues and sysfs
attributes leaks during device removal in the core device PM QoS code
from Rafael J Wysocki.
- Calxeda Highbank cpufreq driver simplification from Emilio López.
- cpufreq comment cleanup from Namhyung Kim.
- Fix for a section mismatch in Calxeda Highbank interprocessor
communication code from Mark Langsdorf (this is not a PM fix strictly
speaking, but the code in question went in through the PM tree).
* tag 'pm+acpi-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq / intel_pstate: Do not load on VM that does not report max P state.
cpufreq / intel_pstate: Fix intel_pstate_init() error path
ACPI / glue: Drop .find_bridge() callback from struct acpi_bus_type
ACPI / glue: Add .match() callback to struct acpi_bus_type
ACPI / porocessor: Beautify code, pr->id is u32 which is never < 0
ACPI / processor: Remove redundant NULL check before kfree
ACPI / Sleep: Avoid interleaved message on errors
PM / QoS: Remove device PM QoS sysfs attributes at the right place
PM / QoS: Fix concurrency issues and memory leaks in device PM QoS
cpufreq: highbank: do not initialize array with a loop
PM / OPP: improve introductory documentation
cpufreq: Fix a typo in comment
mailbox, pl320-ipc: remove __init from probe function
Commit ac24c2204a ("drm/tegra: Use generic
HDMI infoframe helpers") added "select DRM_HDMI" to the DRM_TEGRA
Kconfig entry. But there is no Kconfig symbol named DRM_HDMI. The select
statement for that symbol is a nop. Drop it.
What was needed to use HDMI functionality was to select HDMI (which this
entry already did through depending on DRM) and to include linux/hdmi.h
(which this commit also did).
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Renesas boards were consistently defaulting to the 1024x768 resolution,
regardless of the native resolution of the monitor plugged in. It was
determined that the EDID of the monitor was not being read. Since the
DAC is a shared line, in order to read from or write to it we must take
control of the DAC clock. This can be done by setting the proper
register to one.
This bug fix sets the register MGA1064_GEN_IO_CTL2 to one. The DAC
control line can be used to determine whether or not a new monitor has
been plugged in. But since the hotplug feature is not one we will
support, it has been decided to simply leave the register set to one.
Signed-off-by: Julia Lemire <jlemire@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
A monitor or a user could request a resolution greater than the
available VRAM for the backing framebuffer. This change checks the
required framebuffer size against the max VRAM size and rejects modes
if they are too big. This change can also remove a mode request passed
in via the video= parameter.
Signed-off-by: Christopher Harvey <charvey@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex writes:
Radeon fixes pull. Not much to it.
- fix some splatter if the interrupt handler isn't registered
- Add a quirk for an old R200 board to fix washed out colors on the DAC
- Don't try and soft reset the MC when we reset the GPU. It usually doesn't
need it and doesn't always work reliably.
- A CS checker fix from Marek
* 'drm-fixes-3.9' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: don't check mipmap alignment if MIP_ADDRESS is FMASK
drm/radeon: skip MC reset as it's probably not hung
drm/radeon: add primary dac adj quirk for R200 board
drm/radeon: don't set hpd, afmt interrupts when interrupts are disabled
Pull ARM fixes from Russell King:
"Mainly a group of fixes, the only exception is the wiring up of the
kcmp syscall now that those patches went in during the last merge
window."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7668/1: fix memset-related crashes caused by recent GCC (4.7.2) optimizations
ARM: 7667/1: perf: Fix section mismatch on armpmu_init()
ARM: 7666/1: decompressor: add -mno-single-pic-base for building the decompressor
ARM: 7665/1: Wire up kcmp syscall
ARM: 7664/1: perf: remove erroneous semicolon from event initialisation
ARM: 7663/1: perf: fix ARMv7 EVTYPE_MASK to include NSH bit
ARM: 7662/1: hw_breakpoint: reset debug logic on secondary CPUs in s2ram resume
ARM: 7661/1: mm: perform explicit branch predictor maintenance when required
ARM: 7660/1: tlb: add branch predictor maintenance operations
ARM: 7659/1: mm: make mm->context.id an atomic64_t variable
ARM: 7658/1: mm: fix race updating mm->context.id on ASID rollover
ARM: 7657/1: head: fix swapper and idmap population with LPAE and big-endian
ARM: 7655/1: smp_twd: make twd_local_timer_of_register() no-op for nosmp
ARM: 7652/1: mm: fix missing use of 'asid' to get asid value from mm->context.id
ARM: 7642/1: netx: bump IRQ offset to 64
* Make the EFI variable code more paranoid about running out of
space in NVRAM, since this is the root cause of the recent issue
where machines refuse to boot - from Matthew Garrett.
* Some efivarfs patches that fix regressions introduced in v3.9-rc1.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.13 (GNU/Linux)
iQIcBAABAgAGBQJRN13hAAoJEC84WcCNIz1VTXsP/3P555UjqeJFqZ+MY1w4vi6J
Axdm32sgzmi/hFhjOR87wgH+nl8gkQxVSRjjFJ3gv+2MYfqbpwGSJ1Vx3pR5eXbg
0K0QOY/DExifKMSgI8dJCdmByFBSoNk2iWE1+LzfQgzTi6zmvXkN4OFYLISs+0XI
boP4elJkPlpWedr9KD5a41LpJgDsdZHwmxbTUOJrGJfkOJgzqvR+AOEBlS6KUiwS
K+OQLSjqxODEYtM7HiCY04MO1XRdcF64UYgnBvBronEZtP2mPXOD7tYvofTVywVX
PFNg/azGeW3d9i+QgjfVHZKLa8UtTFVrMb/a28RdKn1+0eXSo4pgThvSIKA3OC96
TXv6s5iHCWuiwZifZPOYYees4vTGz4g5Cq52SiQpvX4pArZfgfCcskkp9BuJ0pxp
8R3iyBcUaiHDnQQmLAWKl11YaK7f6PtxwQCMvKE+nqsWjHr0cWZ9HGXfAlpMjU+c
Ydd0YNss1xfw7OoBxUxBQSko6GNqcKm6BCJPbxVmntQ7fuhK1+hR4DhBye4ECSHW
KukHBmzpS2AZb63pHrBM4wrCVGWwrCkqNszMH9Tr925YEFxrRHU4zz0naweBlGay
720EmtcnETWlbcT5hZKan+1oLGeEhSYIyqMlfXz2iq94py7B+/rcaCdc1aLbgbP0
fiQ0Drfb+5V5CX7eVMq/
=z8x+
-----END PGP SIGNATURE-----
Merge tag 'efi-for-3.9-rc2' into x86/urgent
EFI changes for v3.9-rc2,
* Make the EFI variable code more paranoid about running out of
space in NVRAM, since this is the root cause of the recent issue
where machines refuse to boot - from Matthew Garrett.
* Some efivarfs patches that fix regressions introduced in v3.9-rc1.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
kernel_map_sync_memtype() is called from a variety of contexts. The
pat.c code that calls it seems to ensure that it is not called for
non-ram areas by checking via pat_pagerange_is_ram(). It is important
that it only be called on the actual identity map because there *IS*
no map to sync for highmem pages, or for memory holes.
The ioremap.c uses are not as careful as those from pat.c, and call
kernel_map_sync_memtype() on PCI space which is in the middle of the
kernel identity map _range_, but is not actually mapped.
This patch adds a check to kernel_map_sync_memtype() which probably
duplicates some of the checks already in pat.c. But, it is necessary
for the ioremap.c uses and shouldn't hurt other callers.
I have reproduced this bug and this patch fixes it for me and the
original bug reporter:
https://lkml.org/lkml/2013/2/5/396
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20130307163151.D9B58C4E@kernel.stglabs.ibm.com
Signed-off-by: Dave Hansen <dave@sr71.net>
Tested-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
A few small things here and there, nothing major here really. The
conversion of twl4030ldo_ops to get_voltage_sel is a fix, as covered in
the commit log it fixes inconsistency in handling of the IS_UNSUP()
feature in the driver.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=wEGn
-----END PGP SIGNATURE-----
Merge tag 'regulator-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A few small things here and there, nothing major here really. The
conversion of twl4030ldo_ops to get_voltage_sel is a fix, as covered
in the commit log it fixes inconsistency in handling of the IS_UNSUP()
feature in the driver."
* tag 'regulator-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: fixed regulator_bulk_enable unwinding code
regulator: twl: Convert twl4030ldo_ops to get_voltage_sel
regulator: palmas: fix number of SMPS voltages
regulator: core: fix documentation error in regulator_allow_bypass
regulator: core: update kernel documentation for regulator_desc
regulator: db8500-prcmu - remove incorrect __exit markup
A simple fix to stop us leaking a runtime PM reference in the case where
we fail to enable a device.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=D1mN
-----END PGP SIGNATURE-----
Merge tag 'regmap-v3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap PM fix from Mark Brown:
"A simple fix to stop us leaking a runtime PM reference in the case
where we fail to enable a device."
* tag 'regmap-v3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: irq: call pm_runtime_put in pm_runtime_get_sync failed case
The code cleanups fix up W=1 compiler warnings and some unnecessary checks. The
new Kconfig option, defaulting to N, allows the rarely used eCryptfs kernel to
userspace communication channel to be compiled out. This may be the first step
in it being eventually removed.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=XwgS
-----END PGP SIGNATURE-----
Merge tag 'ecryptfs-3.9-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
Pull ecryptfs fixes from Tyler Hicks:
"Minor code cleanups and new Kconfig option to disable /dev/ecryptfs
The code cleanups fix up W=1 compiler warnings and some unnecessary
checks. The new Kconfig option, defaulting to N, allows the rarely
used eCryptfs kernel to userspace communication channel to be compiled
out. This may be the first step in it being eventually removed."
Hmm. I'm not sure whether these should be called "fixes", and it
probably should have gone in the merge window. But I'll let it slide.
* tag 'ecryptfs-3.9-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
eCryptfs: allow userspace messaging to be disabled
eCryptfs: Fix redundant error check on ecryptfs_find_daemon_by_euid()
ecryptfs: ecryptfs_msg_ctx_alloc_to_free(): remove kfree() redundant null check
eCryptfs: decrypt_pki_encrypted_session_key(): remove kfree() redundant null check
eCryptfs: remove unneeded checks in virt_to_scatterlist()
eCryptfs: Fix -Wmissing-prototypes warnings
eCryptfs: Fix -Wunused-but-set-variable warnings
eCryptfs: initialize payload_len in keystore.c
The MIP_ADDRESS state has 2 meanings. If the texture has one sample
per pixel, it's a pointer to the mipmap chain. If the texture has
multiple samples per pixel, it's a pointer to FMASK, a metadata buffer
needed for reading compressed MSAA textures. The mipmap
alignment rules do not apply to FMASK.
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The MC is mostly likely busy (e.g., display requests), not hung
so no need to reset it. Doing an MC reset is tricky and not
particularly reliable. Fixes hangs in certain cases.
Reported-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
vbios values are wrong leading to colors that are
too bright. Use the default values instead.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Avoids splatter if the interrupt handler is not registered due
to acceleration being disabled.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Cc: stable@vger.kernel.org
Recent GCC versions (e.g. GCC-4.7.2) perform optimizations based on
assumptions about the implementation of memset and similar functions.
The current ARM optimized memset code does not return the value of
its first argument, as is usually expected from standard implementations.
For instance in the following function:
void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
{
memset(waiter, MUTEX_DEBUG_INIT, sizeof(*waiter));
waiter->magic = waiter;
INIT_LIST_HEAD(&waiter->list);
}
compiled as:
800554d0 <debug_mutex_lock_common>:
800554d0: e92d4008 push {r3, lr}
800554d4: e1a00001 mov r0, r1
800554d8: e3a02010 mov r2, #16 ; 0x10
800554dc: e3a01011 mov r1, #17 ; 0x11
800554e0: eb04426e bl 80165ea0 <memset>
800554e4: e1a03000 mov r3, r0
800554e8: e583000c str r0, [r3, #12]
800554ec: e5830000 str r0, [r3]
800554f0: e5830004 str r0, [r3, #4]
800554f4: e8bd8008 pop {r3, pc}
GCC assumes memset returns the value of pointer 'waiter' in register r0; causing
register/memory corruptions.
This patch fixes the return value of the assembly version of memset.
It adds a 'mov' instruction and merges an additional load+store into
existing load/store instructions.
For ease of review, here is a breakdown of the patch into 4 simple steps:
Step 1
======
Perform the following substitutions:
ip -> r8, then
r0 -> ip,
and insert 'mov ip, r0' as the first statement of the function.
At this point, we have a memset() implementation returning the proper result,
but corrupting r8 on some paths (the ones that were using ip).
Step 2
======
Make sure r8 is saved and restored when (! CALGN(1)+0) == 1:
save r8:
- str lr, [sp, #-4]!
+ stmfd sp!, {r8, lr}
and restore r8 on both exit paths:
- ldmeqfd sp!, {pc} @ Now <64 bytes to go.
+ ldmeqfd sp!, {r8, pc} @ Now <64 bytes to go.
(...)
tst r2, #16
stmneia ip!, {r1, r3, r8, lr}
- ldr lr, [sp], #4
+ ldmfd sp!, {r8, lr}
Step 3
======
Make sure r8 is saved and restored when (! CALGN(1)+0) == 0:
save r8:
- stmfd sp!, {r4-r7, lr}
+ stmfd sp!, {r4-r8, lr}
and restore r8 on both exit paths:
bgt 3b
- ldmeqfd sp!, {r4-r7, pc}
+ ldmeqfd sp!, {r4-r8, pc}
(...)
tst r2, #16
stmneia ip!, {r4-r7}
- ldmfd sp!, {r4-r7, lr}
+ ldmfd sp!, {r4-r8, lr}
Step 4
======
Rewrite register list "r4-r7, r8" as "r4-r8".
Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
hid_output_raw_report() makes a direct call to usb_control_msg(). However,
some USB3 boards have shown that the usb device is not ready during the
.probe(). This blocks the entire usb device, and the paired mice, keyboards
are not functional. The dmesg output is the following:
[ 11.912287] logitech-djreceiver 0003:046D:C52B.0003: hiddev0,hidraw0: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:14.0-2/input2
[ 11.912537] logitech-djreceiver 0003:046D:C52B.0003: logi_dj_probe:logi_dj_recv_query_paired_devices error:-32
[ 11.912636] logitech-djreceiver: probe of 0003:046D:C52B.0003 failed with error -32
Relying on the scheduled call to usbhid_submit_report() fixes the problem.
related bugs:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1072082https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1039143https://bugzilla.redhat.com/show_bug.cgi?id=840391https://bugzilla.kernel.org/show_bug.cgi?id=49781
Reported-and-tested-by: Bob Bowles <bobjohnbowles@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Set card->private_data in snd_ice1712_create for fixing NULL
dereference in snd_ice1712_remove().
Signed-off-by: Sean Connor <sconnor004@allyinics.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The delayed inode code batches up changes to the btree in hopes of doing
them in bulk. As the changes build up, processes kick off worker
threads and wait for them to make progress.
The current code kicks off an async work queue item for each delayed
node, which creates a lot of churn. It also uses a fixed 1 HZ waiting
period for the throttle, which allows us to build a lot of pending
work and can slow down the commit.
This changes us to watch a sequence counter as it is bumped during the
operations. We kick off fewer work items and have each work item do
more work.
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Add missing MODULE_ALIAS_FS("ocfs2") how did I miss that?
Remove unnecessary MODULE_ALIAS_FS("devpts") devpts can not be modular.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Move the zero check `hda_frame_size_words == 0' before the modulus
`buffer_size_words % hda_frame_size_words'.
Also remove the redundant null check `buffer_addx == NULL'.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
If the new control cannot be created, this function will return to avoid
snd_hda_ctl_add dereferencing a NULL control pointer.
Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
If the SPDIF control array cannot be reallocated, the function
will return to avoid dereferencing a NULL pointer.
Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A few driver fixes, none of them terribly dramatic.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=Yton
-----END PGP SIGNATURE-----
Merge tag 'asoc-v3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v3.9
A few driver fixes, none of them terribly dramatic.
If the sentinel triggers, we do not want the boot loader authors to
just poke it and make the error go away, we want them to actually fix
the problem.
This should help avoid making the incorrect change in non-compliant
bootloaders.
[ hpa: dropped the Documentation/x86/boot.txt hunk pending
clarifications ]
Signed-off-by: Peter Jones <pjones@redhat.com>
Link: http://lkml.kernel.org/r/1362592823-28967-1-git-send-email-pjones@redhat.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
When boot_params->sentinel is set, all we really know is that some
undefined set of fields in struct boot_params contain garbage. In the
particular case of efi_info, however, there is a private magic for
that substructure, so it is generally safe to leave it even if the
bootloader is broken.
kexec (for which we did the initial analysis) did not initialize this
field, but of course all the EFI bootloaders do, and most EFI
bootloaders are broken in this respect (and should be fixed.)
Reported-by: Robin Holt <holt@sgi.com>
Link: http://lkml.kernel.org/r/CA%2B5PVA51-FT14p4CRYKbicykugVb=PiaEycdQ57CK2km_OQuRQ@mail.gmail.com
Tested-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Henrik reported that his MacAir 3.1 would not boot with
| commit 8d57470d8f
| Date: Fri Nov 16 19:38:58 2012 -0800
|
| x86, mm: setup page table in top-down
It turns out that we do not calculate the real_end properly:
We try to get 2M size with 4K alignment, and later will round down
to 2M, so we will get less then 2M for first mapping, in extreme
case could be only 4K only. In Henrik's system it has (1M-32K) as
last usable rage is [mem 0x7f9db000-0x7fef8fff].
The problem is exposed when EFI booting have several holes and it
will force mapping to use PTE instead as we only map usable areas.
To fix it, just make it be 2M aligned, so we can be guaranteed to be
able to use large pages to map it.
Reported-by: Henrik Rydberg <rydberg@euromail.se>
Bisected-by: Henrik Rydberg <rydberg@euromail.se>
Tested-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/CAE9FiQX4nQ7_1kg5RL_vh56rmcSHXUi1ExrZX7CwED4NGMnHfg@mail.gmail.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
The commit 27be457000
('x86 idle: remove 32-bit-only "no-hlt" parameter, hlt_works_ok
flag') removed the hlt_works_ok flag from struct cpuinfo_x86, but
boot_cpu_data and new_cpu_data initializers were not changed
causing setting f00f_bug flag, instead of fdiv_bug.
If CONFIG_X86_F00F_BUG is not set the f00f_bug flag is never
cleared.
To avoid such problems in future C99-style initialization is now
used.
Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: len.brown@intel.com
Link: http://lkml.kernel.org/r/1362266082-2227-1-git-send-email-krzysiek@podlesie.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Raid56 merge (merge commit e942f88) had mistakenly removed a call to
__cancel_balance(), which resulted in balance not cleaning up after itself
after a successful finish. (Cleanup includes switching the state, removing
the balance item and releasing mut_ex_op testnset lock.) Bring it back.
Reported-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
A bunch of fixes, nothing truely horrible:
- Fix PCH irq handling race which resulted in missed gmbus/dp aux irqs
and subsequent fallout (Paulo)
- Fixup off-by-one in our hsw id table (Kenneth)
- Fixup ilk rc6 support (disabled by default), regression introduced in
3.8
- g4x plane w/a from Egbert Eich
- gen2/3/4 dpms suspend/standy fixes for VGA outputs from Patrik Jakobsson
- Workaround dying ivb machines with less aggressive rc6 values (Stéphane
Marchesin)
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: Turn off hsync and vsync on ADPA when disabling crt
drm/i915: Fix incorrect definition of ADPA HSYNC and VSYNC bits
drm/i915: also disable south interrupts when handling them
drm/i915: enable irqs earlier when resuming
drm/i915: Increase the RC6p threshold.
DRM/i915: On G45 enable cursor plane briefly after enabling the display plane.
drm/i915: Fix Haswell/CRW PCI IDs.
drm/i915: Don't clobber crtc->fb when queue_flip fails
drm/i915: wait_event_timeout's timeout is in jiffies
drm/i915: Fix missing variable initilization
We had a recent fix to fix the release of pagecache pages when
cifs_writev_requeue writes fail. Unfortunately, it releases the page
before trying to unlock it. At that point, the page might be gone by the
time the unlock comes in.
Unlock the page first before checking the value of "rc", and only then
end writeback and release the pages. The page lock isn't required for
any of those operations so this should be safe.
Reported-by: Anton Altaparmakov <aia21@cam.ac.uk>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
cifs_rename_pending_delete() attempts to silly rename file using
CIFSSMBRenameOpenFile(). This uses the SET_FILE_INFORMATION TRANS2
command with information level set to the passthru info-level
SMB_SET_FILE_RENAME_INFORMATION.
We need to check to make sure that the server support passthru
info-levels before attempting the silly rename or else we will fail to
rename the file.
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Fix check for error condition after setting attributes with
CIFSSMBSetFileInfo().
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
WARNING: vmlinux.o(.text+0xfb80): Section mismatch in reference
from the function armpmu_register() to the function
.init.text:armpmu_init()
The function armpmu_register() references
the function __init armpmu_init().
This is often because armpmu_register lacks a __init
annotation or the annotation of armpmu_init is wrong.
Just drop the __init marking on armpmu_init() because
armpmu_register() no longer has an __init marking.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Before jumping to (position independent) C-code from the decompressor's
assembler world we set-up the C environment. This setup currently does not
set r9, which for arm-none-uclinux-uclibceabi toolchains is by default
expected to be the PIC offset base register (IE should point to the
beginning of the GOT).
Currently, therefore, in order to build working kernels that use the
decompressor it is necessary to use an arm-linux-gnueabi toolchain, or
similar. uClinux toolchains cause a prefetch abort to occur at the beginning
of the decompress_kernel function.
This patch allows uClinux toolchains to build bootable zImages by forcing
the -mno-single-pic-base option, which ensures that the location of the GOT
is re-derived each time it is required, and r9 becomes free for use as a
general purpose register.
This has a small (4% in instruction terms) advantage over the alternative of
setting r9 to point to the GOT before calling into the C-world.
Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* pm-fixes:
cpufreq / intel_pstate: Do not load on VM that does not report max P state.
cpufreq / intel_pstate: Fix intel_pstate_init() error path
PM / QoS: Remove device PM QoS sysfs attributes at the right place
PM / QoS: Fix concurrency issues and memory leaks in device PM QoS
cpufreq: highbank: do not initialize array with a loop
PM / OPP: improve introductory documentation
cpufreq: Fix a typo in comment
mailbox, pl320-ipc: remove __init from probe function
Linus Torvalds