When loading the TX fifo to receive bytes on the I2C bus, we incorrectly
count the number of bytes:
rx_limit = dev->rx_fifo_depth - dw_readl(dev, DW_IC_RXFLR);
while (buf_len > 0 && tx_limit > 0 && rx_limit > 0) {
if (rx_limit - dev->rx_outstanding <= 0)
break;
rx_limit--;
dev->rx_outstanding++;
}
DW_IC_RXFLR indicates how many bytes are available to be read in the
FIFO, dev->rx_fifo_depth is the FIFO size, and dev->rx_outstanding is
the number of bytes that we've requested to be read so far, but which
have not been read.
Firstly, increasing dev->rx_outstanding and decreasing rx_limit and then
comparing them results in each byte consuming "two" bytes in this
tracking, so this is obviously wrong.
Secondly, the number of bytes that _could_ be received into the FIFO at
any time is the number of bytes we have so far requested but not yet
read from the FIFO - in other words dev->rx_outstanding.
So, in order to request enough bytes to fill the RX FIFO, we need to
request dev->rx_fifo_depth - dev->rx_outstanding bytes.
Modifying the code thusly results in us reaching the maximum number of
bytes outstanding each time we queue more "receive" operations, provided
the transfer allows that to happen.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Rather than reporting success for a short transfer due to interrupt
latency, report an error both to the caller, as well as to the kernel
log.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Pull ARM fixes from Russell King:
"A few more ARM fixes:
- the assembly backtrace code suffers problems with the new printk()
implementation which assumes that kernel messages without KERN_CONT
should have newlines inserted between them. Fix this.
- fix a section naming error - ".init.text" rather than ".text.init"
- preallocate DMA debug memory at core_initcall() time rather than
fs_initcall(), as we have some core drivers that need to use DMA
mapping - and that triggers a kernel warning from the DMA debug
code.
- fix XIP kernels after the ro_after_init changes made this data
permanently read-only"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: Fix XIP kernels
ARM: 8628/1: dma-mapping: preallocate DMA-debug hash tables in core_initcall
ARM: 8624/1: proc-v7m.S: fix init section name
ARM: fix backtrace
Again a set of smaller fixes across several platforms (OMAP, Marvell,
Allwinner, i.MX, etc).
A handful of typo fixes and smaller missing contents from device trees,
with some tweaks to OMAP mach files to deal with CPU feature print
misformatting, potential NULL ptr dereference and one setup issue
with UARTs.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Again a set of smaller fixes across several platforms (OMAP, Marvell,
Allwinner, i.MX, etc).
A handful of typo fixes and smaller missing contents from device
trees, with some tweaks to OMAP mach files to deal with CPU feature
print misformatting, potential NULL ptr dereference and one setup
issue with UARTs"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ipmi/bt-bmc: change compatible node to 'aspeed, ast2400-ibt-bmc'
ARM: dts: STiH410-b2260: Fix typo in spi0 chipselect definition
ARM: dts: omap5: board-common: fix wrong SMPS6 (VDD-DDR3) voltage
ARM: omap3: Add missing memory node in SOM-LV
arm64: dts: marvell: add unique identifiers for Armada A8k SPI controllers
arm64: dts: marvell: fix clocksource for CP110 slave SPI0
arm64: dts: marvell: Fix typo in label name on Armada 37xx
ASoC: omap-abe-twl6040: fix typo in bindings documentation
dts: omap5: board-common: enable twl6040 headset jack detection
dts: omap5: board-common: add phandle to reference Palmas gpadc
ARM: OMAP2+: avoid NULL pointer dereference
ARM: OMAP2+: PRM: initialize en_uart4_mask and grpsel_uart4_mask
ARM: dts: omap3: Fix memory node in Torpedo board
ARM: AM43XX: Select OMAP_INTERCONNECT in Kconfig
ARM: OMAP3: Fix formatting of features printed
ARM: dts: imx53-qsb: Fix regulator constraints
ARM: dts: sun8i: fix the pinmux for UART1
panic the kernel) and some fixes for CONFIG_VMAP_STACK.
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Merge tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"A security fix (so a maliciously corrupted file system image won't
panic the kernel) and some fixes for CONFIG_VMAP_STACK"
* tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: sanity check the block and cluster size at mount time
fscrypto: don't use on-stack buffer for key derivation
fscrypto: don't use on-stack buffer for filename encryption
With the new (in 4.9) option to use a virtually-mapped stack
(CONFIG_VMAP_STACK), stack buffers cannot be used as input/output for
the scatterlist crypto API because they may not be directly mappable to
struct page. get_crypt_info() was using a stack buffer to hold the
output from the encryption operation used to derive the per-file key.
Fix it by using a heap buffer.
This bug could most easily be observed in a CONFIG_DEBUG_SG kernel
because this allowed the BUG in sg_set_buf() to be triggered.
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
With the new (in 4.9) option to use a virtually-mapped stack
(CONFIG_VMAP_STACK), stack buffers cannot be used as input/output for
the scatterlist crypto API because they may not be directly mappable to
struct page. For short filenames, fname_encrypt() was encrypting a
stack buffer holding the padded filename. Fix it by encrypting the
filename in-place in the output buffer, thereby making the temporary
buffer unnecessary.
This bug could most easily be observed in a CONFIG_DEBUG_SG kernel
because this allowed the BUG in sg_set_buf() to be triggered.
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Pull i2c fixes from Wolfram Sang:
"Some I2C driver bugfixes (and one documentation fix)"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i2c-mux-pca954x: fix deselect enabling for device-tree
i2c: digicolor: use clk_disable_unprepare instead of clk_unprepare
i2c: mux: fix up dependencies
i2c: Documentation: i2c-topology: fix minor whitespace nit
i2c: mux: demux-pinctrl: make drivers with no pinctrl work again
ARM:
- Fix handling of the 32bit cycle counter
- Fix cycle counter filtering
x86:
- Fix a race leading to double unregistering of user notifiers
- Amend oversight in kvm_arch_set_irq that turned Hyper-V code dead
- Use SRCU around kvm_lapic_set_vapic_addr
- Avoid recursive flushing of asynchronous page faults
- Do not rely on deferred update in KVM_GET_CLOCK, which fixes #GP
- Let userspace know that KVM_GET_CLOCK is useful with master clock;
4.9 changed the return value to better match the guest clock, but
didn't provide means to let guests take advantage of it
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- Fix handling of the 32bit cycle counter
- Fix cycle counter filtering
x86:
- Fix a race leading to double unregistering of user notifiers
- Amend oversight in kvm_arch_set_irq that turned Hyper-V code dead
- Use SRCU around kvm_lapic_set_vapic_addr
- Avoid recursive flushing of asynchronous page faults
- Do not rely on deferred update in KVM_GET_CLOCK, which fixes #GP
- Let userspace know that KVM_GET_CLOCK is useful with master clock;
4.9 changed the return value to better match the guest clock, but
didn't provide means to let guests take advantage of it"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: x86: merge kvm_arch_set_irq and kvm_arch_set_irq_inatomic
KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr
KVM: async_pf: avoid recursive flushing of work items
kvm: kvmclock: let KVM_GET_CLOCK return whether the master clock is in use
KVM: Disable irq while unregistering user notifier
KVM: x86: do not go through vcpu in __get_kvmclock_ns
KVM: arm64: Fix the issues when guest PMCCFILTR is configured
arm64: KVM: pmu: Fix AArch32 cycle counter access
Deselect functionality can be ignored for device-trees with
"i2c-mux-idle-disconnect" entries if no platform_data is available.
By enabling the deselect functionality outside the platform_data
block the logic works as it did in previous kernels.
Fixes: 7fcac98071 ("i2c: i2c-mux-pca954x: convert to use an explicit i2c mux core")
Cc: <stable@vger.kernel.org> # v4.7+
Signed-off-by: Alex Hemme <ahemme@cisco.com>
Signed-off-by: Ziyang Wu <ziywu@cisco.com>
[touched up a few minor issues /peda]
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fixes marked for stable:
- Fix system reset interrupt winkle wakeups (Nicholas Piggin)
- Fix setting of AIL in hypervisor mode (Benjamin Herrenschmidt)
Fixes for code merged this cycle:
- Fix exception vector build with 2.23 era binutils (Hugh Dickins)
- Fix missing update of HID register on secondary CPUs (Aneesh Kumar K.V)
Other:
- Fix missing pr_cont()s in show_stack() (Michael Ellerman)
- Fix missing pr_cont()s in print_msr_bits() et. al. (Michael Ellerman)
- Fix missing pr_cont()s in show_regs() (Michael Ellerman)
- Fix missing pr_cont()s in instruction dump (Andrew Donnellan)
- Invalidate ERAT on tlbiel for POWER9 DD1 (Michael Neuling)
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Merge tag 'powerpc-4.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fixes marked for stable:
- fix system reset interrupt winkle wakeups
- fix setting of AIL in hypervisor mode
Fixes for code merged this cycle:
- fix exception vector build with 2.23 era binutils
- fix missing update of HID register on secondary CPUs
Other:
- fix missing pr_cont()s
- invalidate ERAT on tlbiel for POWER9 DD1"
* tag 'powerpc-4.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fix missing update of HID register on secondary CPUs
powerpc/mm/radix: Invalidate ERAT on tlbiel for POWER9 DD1
powerpc/64: Fix setting of AIL in hypervisor mode
powerpc/oops: Fix missing pr_cont()s in instruction dump
powerpc/oops: Fix missing pr_cont()s in show_regs()
powerpc/oops: Fix missing pr_cont()s in print_msr_bits() et. al.
powerpc/oops: Fix missing pr_cont()s in show_stack()
powerpc: Fix exception vector build with 2.23 era binutils
powerpc/64s: Fix system reset interrupt winkle wakeups
Pull crypto fixes from Herbert Xu:
"This fixes the following issues:
- Compiler warning in caam driver that was the last one remaining
- Do not register aes-xts in caam drivers on unsupported platforms
- Regression in algif_hash interface that may lead to an oops"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: algif_hash - Fix NULL hash crash with shash
crypto: caam - fix type mismatch warning
crypto: caam - do not register AES-XTS mode on LP units
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Merge tag 'leds_4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED subsystem update from Jacek Anaszewski:
"I'd like to announce a new co-maintainer - Pavel Machek"
* tag 'leds_4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
MAINTAINERS: Add LED subsystem co-maintainer
Some driver fixes which we pending in my tree:
o return error code fix in edma driver
o Kconfig fix for genric allocator in mmp_tdma
o fix uninitialized value in sun6i
o Runtime pm fixes for cppi
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Merge tag 'dmaengine-fix-4.9-rc6' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"Some driver fixes which we pending in my tree:
- return error code fix in edma driver
- Kconfig fix for genric allocator in mmp_tdma
- fix uninitialized value in sun6i
- Runtime pm fixes for cppi"
* tag 'dmaengine-fix-4.9-rc6' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: cppi41: More PM runtime fixes
dmaengine: cpp41: Fix handling of error path
dmaengine: cppi41: Fix unpaired pm runtime when only a USB hub is connected
dmaengine: cppi41: Fix list not empty warning on module removal
dmaengine: sun6i: fix the uninitialized value for v_lli
dmaengine: mmp_tdma: add missing select GENERIC_ALLOCATOR in Kconfig
dmaengine: edma: Fix error return code in edma_alloc_chan_resources()
kvm_arch_set_irq is unused since commit b97e6de9c9. Merge
its functionality with kvm_arch_set_irq_inatomic.
Reported-by: Jiang Biao <jiang.biao2@zte.com.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
This was reported by syzkaller:
[ INFO: possible recursive locking detected ]
4.9.0-rc4+ #49 Not tainted
---------------------------------------------
kworker/2:1/5658 is trying to acquire lock:
([ 1644.769018] (&work->work)
[< inline >] list_empty include/linux/compiler.h:243
[<ffffffff8128dd60>] flush_work+0x0/0x660 kernel/workqueue.c:1511
but task is already holding lock:
([ 1644.769018] (&work->work)
[<ffffffff812916ab>] process_one_work+0x94b/0x1900 kernel/workqueue.c:2093
stack backtrace:
CPU: 2 PID: 5658 Comm: kworker/2:1 Not tainted 4.9.0-rc4+ #49
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Workqueue: events async_pf_execute
ffff8800676ff630 ffffffff81c2e46b ffffffff8485b930 ffff88006b1fc480
0000000000000000 ffffffff8485b930 ffff8800676ff7e0 ffffffff81339b27
ffff8800676ff7e8 0000000000000046 ffff88006b1fcce8 ffff88006b1fccf0
Call Trace:
...
[<ffffffff8128ddf3>] flush_work+0x93/0x660 kernel/workqueue.c:2846
[<ffffffff812954ea>] __cancel_work_timer+0x17a/0x410 kernel/workqueue.c:2916
[<ffffffff81295797>] cancel_work_sync+0x17/0x20 kernel/workqueue.c:2951
[<ffffffff81073037>] kvm_clear_async_pf_completion_queue+0xd7/0x400 virt/kvm/async_pf.c:126
[< inline >] kvm_free_vcpus arch/x86/kvm/x86.c:7841
[<ffffffff810b728d>] kvm_arch_destroy_vm+0x23d/0x620 arch/x86/kvm/x86.c:7946
[< inline >] kvm_destroy_vm virt/kvm/kvm_main.c:731
[<ffffffff8105914e>] kvm_put_kvm+0x40e/0x790 virt/kvm/kvm_main.c:752
[<ffffffff81072b3d>] async_pf_execute+0x23d/0x4f0 virt/kvm/async_pf.c:111
[<ffffffff8129175c>] process_one_work+0x9fc/0x1900 kernel/workqueue.c:2096
[<ffffffff8129274f>] worker_thread+0xef/0x1480 kernel/workqueue.c:2230
[<ffffffff812a5a94>] kthread+0x244/0x2d0 kernel/kthread.c:209
[<ffffffff831f102a>] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433
The reason is that kvm_put_kvm is causing the destruction of the VM, but
the page fault is still on the ->queue list. The ->queue list is owned
by the VCPU, not by the work items, so we cannot just add list_del to
the work item.
Instead, use work->vcpu to note async page faults that have been resolved
and will be processed through the done list. There is no need to flush
those.
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Userspace can read the exact value of kvmclock by reading the TSC
and fetching the timekeeping parameters out of guest memory. This
however is brittle and not necessary anymore with KVM 4.11. Provide
a mechanism that lets userspace know if the new KVM_GET_CLOCK
semantics are in effect, and---since we are at it---if the clock
is stable across all VCPUs.
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Function user_notifier_unregister should be called only once for each
registered user notifier.
Function kvm_arch_hardware_disable can be executed from an IPI context
which could cause a race condition with a VCPU returning to user mode
and attempting to unregister the notifier.
Signed-off-by: Ignacio Alvarado <ikalvarado@google.com>
Cc: stable@vger.kernel.org
Fixes: 18863bdd60 ("KVM: x86 shared msr infrastructure")
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Going through the first VCPU is wrong if you follow a KVM_SET_CLOCK with
a KVM_GET_CLOCK immediately after, without letting the VCPU run and
call kvm_guest_time_update.
To fix this, compute the kvmclock value ourselves, using the master
clock (tsc, nsec) pair as the base and the host CPU frequency as
the scale.
Reported-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
- Revert a recent ACPICA cleanup that attempted to get rid of all
FADT version 2 legacy, but broke ACPI thermal management on at
least one system (Rafael Wysocki).
- Fix cross-compiled builds of ACPI tools that stopped working
after a recent cleanup related to the handling of header files
in ACPICA (Lv Zheng).
- Fix a locking issue in the PCC channel initialization code that
invokes devm_request_irq() under a spinlock (among other things)
and causes lockdep to complain (Hoan Tran).
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Merge tag 'acpi-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"They fix an ACPI thermal management regression introduced by a recent
FADT handling cleanup, an ACPI tools build issue introduced by a
recent ACPICA commit and a PCC mailbox initialization bug causing
lockdep to complain loudly.
Specifics:
- Revert a recent ACPICA cleanup that attempted to get rid of all
FADT version 2 legacy, but broke ACPI thermal management on at
least one system (Rafael Wysocki).
- Fix cross-compiled builds of ACPI tools that stopped working after
a recent cleanup related to the handling of header files in ACPICA
(Lv Zheng).
- Fix a locking issue in the PCC channel initialization code that
invokes devm_request_irq() under a spinlock (among other things)
and causes lockdep to complain (Hoan Tran)"
* tag 'acpi-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
tools/power/acpi: Remove direct kernel source include reference
mailbox: PCC: Fix lockdep warning when request PCC channel
Revert "ACPICA: FADT support cleanup"
Pull kbuild fixes from Michal Marek:
"Here are some regression fixes for kbuild:
- modversion support for exported asm symbols (Nick Piggin). The
affected architectures need separate patches adding
asm-prototypes.h.
- fix rebuilds of lib-ksyms.o (Nick Piggin)
- -fno-PIE builds (Sebastian Siewior and Borislav Petkov). This is
not a kernel regression, but one of the Debian gcc package.
Nevertheless, it's quite annoying, so I think it should go into
mainline and stable now"
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Steal gcc's pie from the very beginning
kbuild: be more careful about matching preprocessed asm ___EXPORT_SYMBOL
x86/kexec: add -fno-PIE
scripts/has-stack-protector: add -fno-PIE
kbuild: add -fno-PIE
kbuild: modversions for EXPORT_SYMBOL() for asm
kbuild: prevent lib-ksyms.o rebuilds
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Merge tag 'nfsd-4.9-2' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfix from Bruce Fields:
"Just one fix for an NFS/RDMA crash"
* tag 'nfsd-4.9-2' of git://linux-nfs.org/~bfields/linux:
sunrpc: svc_age_temp_xprts_now should not call setsockopt non-tcp transports
Three trivial fixes: a regression fix for ASRock mobo, a
use-after-free fix at hot-unplug of USB-audio, and a quirk for new
Thinkpad models.
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Merge tag 'sound-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Three trivial fixes:
A regression fix for ASRock mobo, a use-after-free fix at hot-unplug
of USB-audio, and a quirk for new Thinkpad models"
* tag 'sound-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Fix use-after-free of usb_device at disconnect
ALSA: hda - Fix mic regression by ASRock mobo fixup
ALSA: hda - add a new condition to check if it is thinkpad
- Finally, after being puzzled by a bunch of recurrent UML
build failures on randconfigs from the build robot, Keno
Fischer nailed it: GPIO_DEVRES is optional and depends on
HAS_IOMEM even though many users just unconditionally rely
on it to be available. And it *should* be available:
garbage collection is nice for this and it *certainly* has
nothing to do with having IOMEM. So we got rid of it, and
now the UML builds should JustWork(TM).
- Do not call .get_direction() on sleeping GPIO chips on the
fastpath when locking GPIOs for interrupts: it is done
from atomic context, no way.
- Some driver fixes.
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Merge tag 'gpio-v4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"These are hopefully the last GPIO fixes for v4.9. The most important
is that it fixes the UML randconfig builds that have been nagging me
for some time and me being confused about where the problem was really
sitting, now this fix give this nice feeling that everything is solid
and builds fine.
Summary:
- Finally, after being puzzled by a bunch of recurrent UML build
failures on randconfigs from the build robot, Keno Fischer nailed
it: GPIO_DEVRES is optional and depends on HAS_IOMEM even though
many users just unconditionally rely on it to be available. And it
*should* be available: garbage collection is nice for this and it
*certainly* has nothing to do with having IOMEM. So we got rid of
it, and now the UML builds should JustWork(TM).
- Do not call .get_direction() on sleeping GPIO chips on the fastpath
when locking GPIOs for interrupts: it is done from atomic context,
no way.
- Some driver fixes"
* tag 'gpio-v4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Remove GPIO_DEVRES option
gpio: tc3589x: fix up .get_direction()
gpio: do not double-check direction on sleeping chips
gpio: pca953x: Move memcpy into mutex lock for set multiple
gpio: pca953x: Fix corruption of other gpios in set_multiple.
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Merge tag 'drm-fixes-for-v4.9-rc6-brown-paper-bag' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"i915 fixes + 2 mediatek regressions.
So some i915 fixes came in which I thought they might so I'm sending
those along with two reverts for two patches to the mediatek driver
that didn't seem to build so well, I've fixed up my -fixes ARM build
and .config so I could see it, but yes brown paper bag time"
* tag 'drm-fixes-for-v4.9-rc6-brown-paper-bag' of git://people.freedesktop.org/~airlied/linux:
Revert "drm/mediatek: set vblank_disable_allowed to true"
Revert "drm/mediatek: fix a typo of OD_CFG to OD_RELAYMODE"
drm/i915: Assume non-DP++ port if dvo_port is HDMI and there's no AUX ch specified in the VBT
drm/i915: Refresh that status of MST capable connectors in ->detect()
drm/i915: Grab the rotation from the passed plane state for VLV sprites
drm/i915: Mark CPU cache as dirty when used for rendering
Recently algif_hash has been changed to allow null hashes. This
triggers a bug when used with an shash algorithm whereby it will
cause a crash during the digest operation.
This patch fixes it by avoiding the digest operation and instead
doing an init followed by a final which avoids the buggy code in
shash.
This patch also ensures that the result buffer is freed after an
error so that it is not returned as a genuine hash result on the
next recv call.
The shash/ahash wrapper code will be fixed later to handle this
case correctly.
Fixes: 493b2ed3f7 ("crypto: algif_hash - Handle NULL hashes correctly")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Laura Abbott <labbott@redhat.com>
We need to update on secondaries for the selected MMU mode.
Fixes: ad410674f5 ("powerpc/mm: Update the HID bit when switching from radix to hash")
Reported-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
KVM calls kvm_pmu_set_counter_event_type() when PMCCFILTR is configured.
But this function can't deals with PMCCFILTR correctly because the evtCount
bits of PMCCFILTR, which is reserved 0, conflits with the SW_INCR event
type of other PMXEVTYPER<n> registers. To fix it, when eventsel == 0, this
function shouldn't return immediately; instead it needs to check further
if select_idx is ARMV8_PMU_CYCLE_IDX.
Another issue is that KVM shouldn't copy the eventsel bits of PMCCFILTER
blindly to attr.config. Instead it ought to convert the request to the
"cpu cycle" event type (i.e. 0x11).
To support this patch and to prevent duplicated definitions, a limited
set of ARMv8 perf event types were relocated from perf_event.c to
asm/perf_event.h.
Cc: stable@vger.kernel.org # 4.6+
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
We're missing the handling code for the cycle counter accessed
from a 32bit guest, leading to unexpected results.
Cc: stable@vger.kernel.org # 4.6+
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
On POWER9 DD1, when we do a local TLB invalidate we also need to explicitly
invalidate the ERAT.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
since clk_prepare_enable() is used to get i2c->clk, we should
use clk_disable_unprepare() to release it for the error path.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
A fix to reintroduce missing pinmux options that turned out not to be
optional.
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Merge tag 'sunxi-fixes-for-4.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes
Allwinner fixes for 4.9
A fix to reintroduce missing pinmux options that turned out not to be
optional.
* tag 'sunxi-fixes-for-4.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
ARM: dts: sun8i: fix the pinmux for UART1
Signed-off-by: Olof Johansson <olof@lixom.net>
It fixes a boot failure on imx53-qsb board with a DA9053 PMIC, which is
caused by the regulator core change, commit fa93fd4ecc ("regulator:
core: Ensure we are at least in bounds for our constraints").
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Merge tag 'imx-fixes-4.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
i.MX fixes for 4.9, 2nd round:
It fixes a boot failure on imx53-qsb board with a DA9053 PMIC, which is
caused by the regulator core change, commit fa93fd4ecc ("regulator:
core: Ensure we are at least in bounds for our constraints").
* tag 'imx-fixes-4.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx53-qsb: Fix regulator constraints
Signed-off-by: Olof Johansson <olof@lixom.net>
features printed, all these are quite trivial and tiny. The omap5 jack
detection and gpadc patches are not strictly fixes, but I wanted to get
binding document typo fixed before it pops up on other boards. The
gpadc one liner was in the same series and I applied and pushed it out
already before noticing it could have waited. The list of changes is:
- Fix omap3 SoC features printed
- Make sure OMAP_INTERCONNECT is selected for am43xx only configurations
- Add missing memory node for torpedo
- Initialize uart4_mask properly to avoid writing garbage to PRM registers
- Fix NULL pointer dereference for omap4 volt_data
- Add alias for omap5 gpadc needed by iio drivers
- Enable omap5 jack headset jack detection and fix it's binding typo
- Add missing memory node for logicpd-som-lv
- Fix wrong SMPS6 voltage for VDD-DDR3 for omap5
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Merge tag 'omap-for-v4.9/fixes-for-rc-cycle' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for v4.9-rc cycle. Except for the omap3 fix for the SoC
features printed, all these are quite trivial and tiny. The omap5 jack
detection and gpadc patches are not strictly fixes, but I wanted to get
binding document typo fixed before it pops up on other boards. The
gpadc one liner was in the same series and I applied and pushed it out
already before noticing it could have waited. The list of changes is:
- Fix omap3 SoC features printed
- Make sure OMAP_INTERCONNECT is selected for am43xx only configurations
- Add missing memory node for torpedo
- Initialize uart4_mask properly to avoid writing garbage to PRM registers
- Fix NULL pointer dereference for omap4 volt_data
- Add alias for omap5 gpadc needed by iio drivers
- Enable omap5 jack headset jack detection and fix it's binding typo
- Add missing memory node for logicpd-som-lv
- Fix wrong SMPS6 voltage for VDD-DDR3 for omap5
* tag 'omap-for-v4.9/fixes-for-rc-cycle' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap5: board-common: fix wrong SMPS6 (VDD-DDR3) voltage
ARM: omap3: Add missing memory node in SOM-LV
ASoC: omap-abe-twl6040: fix typo in bindings documentation
dts: omap5: board-common: enable twl6040 headset jack detection
dts: omap5: board-common: add phandle to reference Palmas gpadc
ARM: OMAP2+: avoid NULL pointer dereference
ARM: OMAP2+: PRM: initialize en_uart4_mask and grpsel_uart4_mask
ARM: dts: omap3: Fix memory node in Torpedo board
ARM: AM43XX: Select OMAP_INTERCONNECT in Kconfig
ARM: OMAP3: Fix formatting of features printed
Signed-off-by: Olof Johansson <olof@lixom.net>
All of them are fixes for arm64 device tree
- 2 for the SPI node on the Armada 7K/8K
- 1 for the clock node on the Armada 37xx
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Merge tag 'mvebu-fixes-4.9-1' of git://git.infradead.org/linux-mvebu into fixes
mvebu fixes for 4.9 (part 1)
All of them are fixes for arm64 device tree
- 2 for the SPI node on the Armada 7K/8K
- 1 for the clock node on the Armada 37xx
* tag 'mvebu-fixes-4.9-1' of git://git.infradead.org/linux-mvebu:
arm64: dts: marvell: add unique identifiers for Armada A8k SPI controllers
arm64: dts: marvell: fix clocksource for CP110 slave SPI0
arm64: dts: marvell: Fix typo in label name on Armada 37xx
Signed-off-by: Olof Johansson <olof@lixom.net>
i915 misc fixes.
* tag 'drm-intel-fixes-2016-11-17' of ssh://git.freedesktop.org/git/drm-intel:
drm/i915: Assume non-DP++ port if dvo_port is HDMI and there's no AUX ch specified in the VBT
drm/i915: Refresh that status of MST capable connectors in ->detect()
drm/i915: Grab the rotation from the passed plane state for VLV sprites
drm/i915: Mark CPU cache as dirty when used for rendering
The Aspeed SoCs have two BT interfaces : one is IPMI compliant and the
other is H8S/2168 compliant.
The current ipmi/bt-bmc driver implements the IPMI version and we
should reflect its nature in the compatible node name using
'aspeed,ast2400-ibt-bmc' instead of 'aspeed,ast2400-bt-bmc'. The
latter should be used for a H8S interface driver if it is implemented
one day.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull block fixes from Jens Axboe:
"A set of fixes, one for NVMe from Keith, and a set for nvme-{rdma,t,f}
from the usual suspects, fixing actual problems that would be a shame
to release 4.9 with"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvme/pci: Don't free queues on error
nvmet-rdma: drain the queue-pair just before freeing it
nvme-rdma: stop and free io queues on connect failure
nvmet-rdma: don't forget to delete a queue from the list of connection failed
nvmet: Don't queue fatal error work if csts.cfs is set
nvme-rdma: reject non-connect commands before the queue is live
nvmet-rdma: Fix possible NULL deref when handling rdma cm events
- Misc Intel hfi1 fixes
- Misc Mellanox mlx4, mlx5, and rxe fixes
- A couple cxgb4 fixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rmda fixes from Doug Ledford.
"First round of -rc fixes.
Due to various issues, I've been away and couldn't send a pull request
for about three weeks. There were a number of -rc patches that built
up in the meantime (some where there already from the early -rc
stages). Obviously, there were way too many to send now, so I tried to
pare the list down to the more important patches for the -rc cycle.
Most of the code has had plenty of soak time at the various vendor's
testing setups, so I doubt there will be another -rc pull request this
cycle. I also tried to limit the patches to those with smaller
footprints, so even though a shortlog is longer than I would like, the
actual diffstat is mostly very small with the exception of just three
files that had more changes, and a couple files with pure removals.
Summary:
- Misc Intel hfi1 fixes
- Misc Mellanox mlx4, mlx5, and rxe fixes
- A couple cxgb4 fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (34 commits)
iw_cxgb4: invalidate the mr when posting a read_w_inv wr
iw_cxgb4: set *bad_wr for post_send/post_recv errors
IB/rxe: Update qp state for user query
IB/rxe: Clear queue buffer when modifying QP to reset
IB/rxe: Fix handling of erroneous WR
IB/rxe: Fix kernel panic in UDP tunnel with GRO and RX checksum
IB/mlx4: Fix create CQ error flow
IB/mlx4: Check gid_index return value
IB/mlx5: Fix NULL pointer dereference on debug print
IB/mlx5: Fix fatal error dispatching
IB/mlx5: Resolve soft lock on massive reg MRs
IB/mlx5: Use cache line size to select CQE stride
IB/mlx5: Validate requested RQT size
IB/mlx5: Fix memory leak in query device
IB/core: Avoid unsigned int overflow in sg_alloc_table
IB/core: Add missing check for addr_resolve callback return value
IB/core: Set routable RoCE gid type for ipv4/ipv6 networks
IB/cm: Mark stale CM id's whenever the mad agent was unregistered
IB/uverbs: Fix leak of XRC target QPs
IB/hfi1: Remove incorrect IS_ERR check
...
Pull vfs fixes from Al Viro:
"A couple of regression fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix iov_iter_advance() for ITER_PIPE
xattr: Fix setting security xattrs on sockfs
Without ".owner = THIS_MODULE" it is possible to crash the kernel
by unloading the Orangefs module while someone is reading debugfs
files.
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Merge tag 'for-linus-4.9-rc5-ofs-1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
Pull orangefs fix from Mike Marshall:
"orangefs: add .owner to debugfs file_operations
Without ".owner = THIS_MODULE" it is possible to crash the kernel by
unloading the Orangefs module while someone is reading debugfs files"
* tag 'for-linus-4.9-rc5-ofs-1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
orangefs: add .owner to debugfs file_operations
Russell King