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When pca953x_irq_pending returns false, the pending parameter won't
be set. But pca953x_irq_handler continues using this uninitialized
variable as pending irqs and will cause problem.
Fix the issue by initializing pending to 0.
Fixes: 064c73afe738 ("gpio: pca953x: Synchronize interrupt handler properly")
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Commit 653055b9acd4 ("vhost-vdpa: support get/set backend features")
introduces two malfunction backend features ioctls:
1) the ioctls was blindly added to vring ioctl instead of vdpa device
ioctl
2) vhost_set_backend_features() was called when dev mutex has already
been held which will lead a deadlock
This patch fixes the above issues.
Cc: Eli Cohen <elic@nvidia.com>
Reported-by: Zhu Lingshan <lingshan.zhu@intel.com>
Fixes: 653055b9acd4 ("vhost-vdpa: support get/set backend features")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200907104343.31141-1-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
if of_find_device_by_node() succeed, exynos_iommu_of_xlate() doesn't have
a corresponding put_device(). Thus add put_device() to fix the exception
handling for this function implementation.
Fixes: aa759fd376fb ("iommu/exynos: Add callback for initializing devices from device tree")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20200918011335.909141-1-yukuai3@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
reqcnt is an u32 pointer but we do copy sizeof(reqcnt) which is the
size of the pointer. This means we only copy 8 byte. Let us copy
the full monty.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Harald Freudenberger <freude@linux.ibm.com>
Cc: stable@vger.kernel.org
Fixes: af4a72276d49 ("s390/zcrypt: Support up to 256 crypto adapters.")
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Masami discovered two bugs which this fixes and he added tests to
cover these issues.
- Fix a bug that breaks bootconfig tree nodes
- Fix a bug that does not truncate whitespace properly
- Add tests to cover the above two cases
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Merge tag 'trace-v5.9-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull bootconfig fixes from Steven Rostedt:
"A couple of fixes for bootconfig.
Masami discovered two bugs which this fixes and he added tests to
cover these issues.
- Fix a bug that breaks bootconfig tree nodes
- Fix a bug that does not truncate whitespace properly
- Add tests to cover the above two cases"
* tag 'trace-v5.9-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tools/bootconfig: Add testcase for tailing space
tools/bootconfig: Add testcases for repeated key with brace
lib/bootconfig: Fix to remove tailing spaces after value
lib/bootconfig: Fix a bug of breaking existing tree nodes
because past attempts didn't fully appreciate the liability relative
to recursive bio splitting. This fix limits DM's bio splitting to a
single method and does _not_ use blk_queue_split() for normal IO.
- DM crypt Documentation updates for features added during 5.9 merge.
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Merge tag 'for-5.9/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- DM core fix for incorrect double bio splitting. Keep "fixing" this
because past attempts didn't fully appreciate the liability relative
to recursive bio splitting. This fix limits DM's bio splitting to a
single method and does _not_ use blk_queue_split() for normal IO.
- DM crypt Documentation updates for features added during 5.9 merge.
* tag 'for-5.9/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm crypt: document encrypted keyring key option
dm crypt: document new no_workqueue flags
dm: fix comment in dm_process_bio()
dm: fix bio splitting and its bio completion order for regular IO
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Merge tag 'for-5.9-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"syzkaller started to hit us with reports, here's a fix for one type
(stack overflow when printing checksums on read error).
The other patch is a fix for sysfs object, we have a test for that and
it leads to a crash."
* tag 'for-5.9-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix put of uninitialized kobject after seed device delete
btrfs: fix overflow when copying corrupt csums for a message
Several people reported in the kernel bugzilla that between v4.12 and v4.13
the magic which works around broken hardware and BIOSes to find the proper
timer interrupt delivery mode stopped working for some older affected
platforms which need to fall back to ExtINT delivery mode.
The reason is that the core code changed to keep track of the masked and
disabled state of an interrupt line more accurately to avoid the expensive
hardware operations.
That broke an assumption in i8259_make_irq() which invokes
disable_irq_nosync();
irq_set_chip_and_handler();
enable_irq();
Up to v4.12 this worked because enable_irq() unconditionally unmasked the
interrupt line, but after the state tracking improvements this is not
longer the case because the IO/APIC uses lazy disabling. So the line state
is unmasked which means that enable_irq() does not call into the new irq
chip to unmask it.
In principle this is a shortcoming of the core code, but it's more than
unclear whether the core code should try to reset state. At least this
cannot be done unconditionally as that would break other existing use cases
where the chip type is changed, e.g. when changing the trigger type, but
the callers expect the state to be preserved.
As the way how check_timer() is switching the delivery modes is truly
unique, the obvious fix is to simply unmask the i8259 manually after
changing the mode to ExtINT delivery and switching the irq chip to the
legacy PIC.
Note, that the fixes tag is not really precise, but identifies the commit
which broke the assumptions in the IO/APIC and i8259 code and that's the
kernel version to which this needs to be backported.
Fixes: bf22ff45bed6 ("genirq: Avoid unnecessary low level irq function calls")
Reported-by: p_c_chan@hotmail.com
Reported-by: ecm4@mail.com
Reported-by: perdigao1@yahoo.com
Reported-by: matzes@users.sourceforge.net
Reported-by: rvelascog@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: p_c_chan@hotmail.com
Tested-by: matzes@users.sourceforge.net
Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=197769
In the function nvme_get_effects_log() it uses NVME_NSID_ALL which has
namespace scope. The command effect log page is controller specific.
Replace NVME_NSID_ALL with 0x00 which specifies the controller scope
instead of namespace scope.
Fixes: 84fef62d135b ("nvme: check admin passthru command effects")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209287
Reported-by: Huai-Cheng Kuo <hh81478072@gmail.com>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This completes the split of the non-present and present pte cases by
moving the check for the source pte being present into the single
caller, which also means that we clearly separate out the very different
return value case for a non-present pte.
The present pte case currently always succeeds.
This is a pure code re-organization with no semantic change: the intent
is to make it much easier to add a new return case to the present pte
case for when we do early COW at page table copy time.
This was split out from the previous commit simply to make it easy to
visually see that there were no semantic changes from this code
re-organization.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is a purely mechanical split of the copy_one_pte() function. It's
not immediately obvious when looking at the diff because of the
indentation change, but the way to see what is going on in this commit
is to use the "-w" flag to not show pure whitespace changes, and you see
how the first part of copy_one_pte() is simply lifted out into a
separate function.
And since the non-present case is marked unlikely, don't make the new
function be inlined. Not that gcc really seems to care, since it looks
like it will inline it anyway due to the whole "single callsite for
static function" logic. In fact, code generation with the function
split is almost identical to before. But not marking it inline is the
right thing to do.
This is pure prep-work and cleanup for subsequent changes.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
spi_unregister_controller() not only unregisters the controller, but
also frees the controller. This will free the driver data with it, so
we must not access it later dspi_remove().
Solve this by allocating the driver data separately from the SPI
controller.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20200923131026.20707-1-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently we wrongly set the mask of value of LDO2/4 both to the mask of
LDO2, and the LDO4 voltage configuration is left untouched. This leads
to conflict when LDO2/4 are both in use.
Fix this issue by setting different vsel_mask to both regulators.
Fixes: db4a555f7c4c ("regulator: axp20x: use defines for masks")
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Link: https://lore.kernel.org/r/20200923005142.147135-1-icenowy@aosc.io
Signed-off-by: Mark Brown <broonie@kernel.org>
This is a follow-up patch to fix an issue left in commit:
98b0bf02738004829d7e26d6cb47b2e469aaba86
selftests: kvm: Use a shorter encoding to clear RAX
With the change in the commit, we also need to modify "xor" instruction
length from 3 to 2 in array ss_size accordingly to pass below check:
for (i = 0; i < (sizeof(ss_size) / sizeof(ss_size[0])); i++) {
target_rip += ss_size[i];
CLEAR_DEBUG();
debug.control = KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP;
debug.arch.debugreg[7] = 0x00000400;
APPLY_DEBUG();
vcpu_run(vm, VCPU_ID);
TEST_ASSERT(run->exit_reason == KVM_EXIT_DEBUG &&
run->debug.arch.exception == DB_VECTOR &&
run->debug.arch.pc == target_rip &&
run->debug.arch.dr6 == target_dr6,
"SINGLE_STEP[%d]: exit %d exception %d rip 0x%llx "
"(should be 0x%llx) dr6 0x%llx (should be 0x%llx)",
i, run->exit_reason, run->debug.arch.exception,
run->debug.arch.pc, target_rip, run->debug.arch.dr6,
target_dr6);
}
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
Message-Id: <20200826015524.13251-1-weijiang.yang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch exposes allow_smaller_maxphyaddr to the user as a module parameter.
Since smaller physical address spaces are only supported on VMX, the
parameter is only exposed in the kvm_intel module.
For now disable support by default, and let the user decide if they want
to enable it.
Modifications to VMX page fault and EPT violation handling will depend
on whether that parameter is enabled.
Signed-off-by: Mohammed Gamal <mgamal@redhat.com>
Message-Id: <20200903141122.72908-1-mgamal@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
As there is no known soc powered by mips 1074K in bcm47xx series,
the check with 1074K is needless. So just remove it.
Link: https://wireless.wiki.kernel.org/en/users/Drivers/b43/soc
Fixes: 442e14a2c55e ("MIPS: Add 1074K CPU support explicitly.")
Signed-off-by: Wei Li <liwei391@huawei.com>
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Commit 442e14a2c55e ("MIPS: Add 1074K CPU support explicitly.") split
1074K from the 74K as an unique CPU type, while it missed to add the
'CPU_1074K' in __get_cpu_type(). So let's add it back.
Fixes: 442e14a2c55e ("MIPS: Add 1074K CPU support explicitly.")
Signed-off-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
It was missed when I was forking Loongson2ef from Loongson64 but
should be applied to Loongson2ef as march=loongson2f
will also enable Loongson MMI in GCC-9+.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Fixes: 71e2f4dd5a65 ("MIPS: Fork loongson2ef from loongson64")
Reported-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: stable@vger.kernel.org # v5.8+
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Fix the lapic_timer_needs_broadcast() stub for
ARCH_APICTIMER_STOPS_ON_C3 unset to actually return
a value.
Fixes: aa6b43d57f99 ("ACPI: processor: Use CPUIDLE_FLAG_TIMER_STOP")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Since we store a pointer to the fake iommu device that is allocated on
the stack, as soon as we leave the function it goes out of scope and any
future dereference is undefined behaviour. Just in case we may need to
look at the fake iommu device after initialiation, move the allocation
from the stack into the data.
Fixes: 01b9d4e21148 ("iommu/vt-d: Use dev_iommu_priv_get/set()")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200916105022.28316-2-chris@chris-wilson.co.uk
(cherry picked from commit 9f9f4101fc98db56714e71676d5a1e2d27e01f7e)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
The commit 4dc3bab8687f ("PM / devfreq: Add support delayed timer for
polling mode") supports the delayed timer but this commit missed
the adding the timer type to devfreq_summary debugfs node.
Add the timer type to devfreq_summary debugfs.
Fixes: 4dc3bab8687f ("PM / devfreq: Add support delayed timer for polling mode")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
- Fill asoc card owner in vc4.
- Program secondary CSC correctly in sun4i, and extend
register mapping to cover secondary CSC registers.
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Merge tag 'drm-misc-fixes-2020-09-18' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v5.9-rc6:
- Fill asoc card owner in vc4.
- Program secondary CSC correctly in sun4i, and extend
register mapping to cover secondary CSC registers.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e3ab56cf-3b8e-9b21-f1b6-9a4989a52996@linux.intel.com
Pull vfs fixes from Al Viro:
"No common topic, just assorted fixes"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fuse: fix the ->direct_IO() treatment of iov_iter
fs: fix cast in fsparam_u32hex() macro
vboxsf: Fix the check for the old binary mount-arguments struct
transport_lookup_tmr_lun() uses "orig_fe_lun" member of struct se_cmd for
the lookup. Hence, update this field directly for the
TARGET_SCF_LOOKUP_LUN_FROM_TAG case.
Link: https://lore.kernel.org/r/1600300471-26135-1-git-send-email-sudhakar.panneerselvam@oracle.com
Fixes: a36840d80027 ("target: Initialize LUN in transport_init_se_cmd()")
Reported-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Sudhakar Panneerselvam <sudhakar.panneerselvam@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pull networking fixes from Jakub Kicinski:
- fix failure to add bond interfaces to a bridge, the offload-handling
code was too defensive there and recent refactoring unearthed that.
Users complained (Ido)
- fix unnecessarily reflecting ECN bits within TOS values / QoS marking
in TCP ACK and reset packets (Wei)
- fix a deadlock with bpf iterator. Hopefully we're in the clear on
this front now... (Yonghong)
- BPF fix for clobbering r2 in bpf_gen_ld_abs (Daniel)
- fix AQL on mt76 devices with FW rate control and add a couple of AQL
issues in mac80211 code (Felix)
- fix authentication issue with mwifiex (Maximilian)
- WiFi connectivity fix: revert IGTK support in ti/wlcore (Mauro)
- fix exception handling for multipath routes via same device (David
Ahern)
- revert back to a BH spin lock flavor for nsid_lock: there are paths
which do require the BH context protection (Taehee)
- fix interrupt / queue / NAPI handling in the lantiq driver (Hauke)
- fix ife module load deadlock (Cong)
- make an adjustment to netlink reply message type for code added in
this release (the sole change touching uAPI here) (Michal)
- a number of fixes for small NXP and Microchip switches (Vladimir)
[ Pull request acked by David: "you can expect more of this in the
future as I try to delegate more things to Jakub" ]
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (167 commits)
net: mscc: ocelot: fix some key offsets for IP4_TCP_UDP VCAP IS2 entries
net: dsa: seville: fix some key offsets for IP4_TCP_UDP VCAP IS2 entries
net: dsa: felix: fix some key offsets for IP4_TCP_UDP VCAP IS2 entries
inet_diag: validate INET_DIAG_REQ_PROTOCOL attribute
net: bridge: br_vlan_get_pvid_rcu() should dereference the VLAN group under RCU
net: Update MAINTAINERS for MediaTek switch driver
net/mlx5e: mlx5e_fec_in_caps() returns a boolean
net/mlx5e: kTLS, Avoid kzalloc(GFP_KERNEL) under spinlock
net/mlx5e: kTLS, Fix leak on resync error flow
net/mlx5e: kTLS, Add missing dma_unmap in RX resync
net/mlx5e: kTLS, Fix napi sync and possible use-after-free
net/mlx5e: TLS, Do not expose FPGA TLS counter if not supported
net/mlx5e: Fix using wrong stats_grps in mlx5e_update_ndo_stats()
net/mlx5e: Fix multicast counter not up-to-date in "ip -s"
net/mlx5e: Fix endianness when calculating pedit mask first bit
net/mlx5e: Enable adding peer miss rules only if merged eswitch is supported
net/mlx5e: CT: Fix freeing ct_label mapping
net/mlx5e: Fix memory leak of tunnel info when rule under multipath not ready
net/mlx5e: Use synchronize_rcu to sync with NAPI
net/mlx5e: Use RCU to protect rq->xdp_prog
...
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Merge tag 'io_uring-5.9-2020-09-22' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"A few fixes - most of them regression fixes from this cycle, but also
a few stable heading fixes, and a build fix for the included demo tool
since some systems now actually have gettid() available"
* tag 'io_uring-5.9-2020-09-22' of git://git.kernel.dk/linux-block:
io_uring: fix openat/openat2 unified prep handling
io_uring: mark statx/files_update/epoll_ctl as non-SQPOLL
tools/io_uring: fix compile breakage
io_uring: don't use retry based buffered reads for non-async bdev
io_uring: don't re-setup vecs/iter in io_resumit_prep() is already there
io_uring: don't run task work on an exiting task
io_uring: drop 'ctx' ref on task work cancelation
io_uring: grab any needed state during defer prep
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Merge tag 'block-5.9-2020-09-22' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few NVMe fixes, and a dasd write zero fix"
* tag 'block-5.9-2020-09-22' of git://git.kernel.dk/linux-block:
nvmet: get transport reference for passthru ctrl
nvme-core: get/put ctrl and transport module in nvme_dev_open/release()
nvme-tcp: fix kconfig dependency warning when !CRYPTO
nvme-pci: disable the write zeros command for Intel 600P/P3100
s390/dasd: Fix zero write for FBA devices
Sami reported that run_on_irqstack_cond() requires the caller to cast
functions to mismatching types, which trips indirect call Control-Flow
Integrity (CFI) in Clang.
Instead of disabling CFI on that function, provide proper helpers for
the three call variants. The actual ASM code stays the same as that is
out of reach.
[ bp: Fix __run_on_irqstack() prototype to match. ]
Fixes: 931b94145981 ("x86/entry: Provide helpers for executing on the irqstack")
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Reported-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Cc: <stable@vger.kernel.org>
Link: https://github.com/ClangBuiltLinux/linux/issues/1052
Link: https://lkml.kernel.org/r/87pn6eb5tv.fsf@nanos.tec.linutronix.de
The ChipID IO region has it's own clock, which is being disabled while
scanning for unused clocks. It turned out that some CPU hotplug, CPU idle
or even SOC firmware code depends on the reads from that area. Fix the
mysterious hang caused by entering deep CPU idle state by ignoring the
'chipid' clock during unused clocks scan, as there are no direct clients
for it which will keep it enabled.
Fixes: e062b571777f ("clk: exynos4: register clocks using common clock framework")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20200922124046.10496-1-m.szyprowski@samsung.com
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This is a set of small fixes for the Tegra clock driver.
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Merge tag 'for-5.10-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-fixes
Pull Tegra clk driver fixes from Thierry Reding:
This is a set of small fixes for the Tegra clock driver.
* tag 'for-5.10-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
clk: tegra: Fix missing prototype for tegra210_clk_register_emc()
clk: tegra: Always program PLL_E when enabled
clk: tegra: Capitalization fixes
The commit 1098582a0f6c ("sched,idle,rcu: Push rcu_idle deeper into the
idle path"), moved the calls rcu_idle_enter|exit() into the cpuidle core.
However, it forgot to remove a couple of comments in enter_s2idle_proper()
about why RCU_NONIDLE earlier was needed. So, let's drop them as they have
become a bit misleading.
Fixes: 1098582a0f6c ("sched,idle,rcu: Push rcu_idle deeper into the idle path")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit 27f5411a718c4 ("dm crypt: support using encrypted keys")
introduced support for encrypted keyring type.
Fix documentation in admin guide to mention this type.
Fixes: 27f5411a718c4 ("dm crypt: support using encrypted keys")
Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
commit 2b74b0a04d3e ("USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()")
adds important bounds checking however it unfortunately also introduces a
bug with respect to section 3.3.1 of the NCM specification.
wDatagramIndex[1] : "Byte index, in little endian, of the second datagram
described by this NDP16. If zero, then this marks the end of the sequence
of datagrams in this NDP16."
wDatagramLength[1]: "Byte length, in little endian, of the second datagram
described by this NDP16. If zero, then this marks the end of the sequence
of datagrams in this NDP16."
wDatagramIndex[1] and wDatagramLength[1] respectively then may be zero but
that does not mean we should throw away the data referenced by
wDatagramIndex[0] and wDatagramLength[0] as is currently the case.
Breaking the loop on (index2 == 0 || dg_len2 == 0) should come at the end
as was previously the case and checks for index2 and dg_len2 should be
removed since zero is valid.
I'm not sure how much testing the above patch received but for me right now
after enumeration ping doesn't work. Reverting the commit restores ping,
scp, etc.
The extra validation associated with wDatagramIndex[0] and
wDatagramLength[0] appears to be valid so, this change removes the incorrect
restriction on wDatagramIndex[1] and wDatagramLength[1] restoring data
processing between host and device.
Fixes: 2b74b0a04d3e ("USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()")
Cc: Ilja Van Sprundel <ivansprundel@ioactive.com>
Cc: Brooke Basile <brookebasile@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20200920170158.1217068-1-bryan.odonoghue@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
One of these fixes a regresison introduced this cycle, but if I am too late
sending this request, it can be queued up for the merge window.
ad7124: fix typo in device name exposed through sysfs.
qcom-spmi-adc: fix stray .c in driver name field.
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Merge tag 'iio-fixes-for-5.9b-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
2nd set of IIO fixes for the 5.9 cycle.
One of these fixes a regresison introduced this cycle, but if I am too late
sending this request, it can be queued up for the merge window.
ad7124: fix typo in device name exposed through sysfs.
qcom-spmi-adc: fix stray .c in driver name field.
* tag 'iio-fixes-for-5.9b-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
iio: adc: qcom-spmi-adc5: fix driver name
iio: adc: ad7124: Fix typo in device name
- Check kprobe is enabled before unregistering from ftrace as it isn't
registered when disabled.
- Remove kprobes enabled via command-line that is on init text when freed.
- Add missing RCU synchronization for ftrace trampoline symbols removed
from kallsyms.
- Free trampoline on error path if ftrace_startup() fails.
- Give more space for the longer PID numbers in trace output.
- Fix a possible double free in the histogram code.
- A couple of fixes that were discovered by sparse.
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Merge tag 'trace-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
- Check kprobe is enabled before unregistering from ftrace as it isn't
registered when disabled.
- Remove kprobes enabled via command-line that is on init text when
freed.
- Add missing RCU synchronization for ftrace trampoline symbols removed
from kallsyms.
- Free trampoline on error path if ftrace_startup() fails.
- Give more space for the longer PID numbers in trace output.
- Fix a possible double free in the histogram code.
- A couple of fixes that were discovered by sparse.
* tag 'trace-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
bootconfig: init: make xbc_namebuf static
kprobes: tracing/kprobes: Fix to kill kprobes on initmem after boot
tracing: fix double free
ftrace: Let ftrace_enable_sysctl take a kernel pointer buffer
tracing: Make the space reserved for the pid wider
ftrace: Fix missing synchronize_rcu() removing trampoline from kallsyms
ftrace: Free the trampoline when ftrace_startup() fails
kprobes: Fix to check probe enabled before disarm_kprobe_ftrace()
The lldd may have made calls to delete a remote port or local port and
the delete is in progress when the cli then attempts to create a new
controller. Currently, this proceeds without error although it can't be
very successful.
Fix this by validating that both the host port and remote port are
present when a new controller is to be created.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Currently, we use nvmeq->q_depth as the upper limit for a valid tag in
nvme_handle_cqe(), it is not correct. Because the available tag number
is recorded in tagset, which is not equal to nvmeq->q_depth.
The nvme driver registers interrupts for queues before initializing the
tagset, because it uses the number of successful request_irq() calls to
configure the tagset parameters. This allows a race condition with the
current tag validity check if the controller happens to produce an
interrupt with a corrupted CQE before the tagset is initialized.
Replace the driver's indirect tag check with the one already provided by
the block layer.
Signed-off-by: Xianting Tian <tian.xianting@h3c.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Initializing the nvme hwmon retrieves a log from the controller. If the
controller is broken, we need to return the appropriate error so that
subsequent initialization doesn't attempt to continue.
Reported-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This reverts commit 34dedd2a83b241ba6aeb290260313c65dc58660e.
According to Realtek, volume FU works for line-in.
I can confirm volume control works after device firmware is updated.
Fixes: 34dedd2a83b2 ("ALSA: usb-audio: Disable Lenovo P620 Rear line-in volume control")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20200915103925.12777-1-kai.heng.feng@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Andy reported that commit 6b41030fdc79 ("dmaengine: dmatest:
Restore default for channel") broke his scripts for the case
where "busy" channel is used for configuration with expectation
that run command would do nothing. Instead, behavior was
(unintentionally) changed to treat such case as under-configuration
and progress with defaults, i.e. run command would start a test
with default setting for channel (which would use all channels).
Restore original behavior with tracking status of channel setter
so we can distinguish between misconfigured and under-configured
cases in run command and act accordingly.
Fixes: 6b41030fdc79 ("dmaengine: dmatest: Restore default for channel")
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200922115847.30100-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The following test case leads to NULL kobject free error:
mount seed /mnt
add sprout to /mnt
umount /mnt
mount sprout to /mnt
delete seed
kobject: '(null)' (00000000dd2b87e4): is not initialized, yet kobject_put() is being called.
WARNING: CPU: 1 PID: 15784 at lib/kobject.c:736 kobject_put+0x80/0x350
RIP: 0010:kobject_put+0x80/0x350
::
Call Trace:
btrfs_sysfs_remove_devices_dir+0x6e/0x160 [btrfs]
btrfs_rm_device.cold+0xa8/0x298 [btrfs]
btrfs_ioctl+0x206c/0x22a0 [btrfs]
ksys_ioctl+0xe2/0x140
__x64_sys_ioctl+0x1e/0x29
do_syscall_64+0x96/0x150
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f4047c6288b
::
This is because, at the end of the seed device-delete, we try to remove
the seed's devid sysfs entry. But for the seed devices under the sprout
fs, we don't initialize the devid kobject yet. So add a kobject state
check, which takes care of the bug.
Fixes: 668e48af7a94 ("btrfs: sysfs, add devid/dev_state kobject and device attributes")
CC: stable@vger.kernel.org # 5.6+
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
If MSA is enabled, FPU_REG_WIDTH is 128 rather than 64, then get_fpr64()
/set_fpr64() in the original unaligned instruction emulation code access
the wrong fp registers. This is because the current code doesn't specify
the correct index field, so fix it.
Fixes: f83e4f9896eff614d0f2547a ("MIPS: Loongson-3: Add some unaligned instructions emulation")
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Pei Huang <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Direct backmerge to get commit 88b67edd7247 ("dax: Fix compilation for
CONFIG_DAX && !CONFIG_FS_DAX") to fix CI build issues.
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
