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With the new 2 step scanning process, which defers instantiating some
ACPI-devices based on their _DEP to the second step, the following may
happen:
1. During the first acpi_walk_namespace(acpi_bus_check_add) call
acpi_scan_check_dep() gets called on the Battery ACPI dev handle and
adds one or more deps for this handle to the acpi_dep_list
2. During the first acpi_bus_attach() call one or more of the suppliers of
these deps get their driver attached and
acpi_walk_dep_device_list(supplier_handle) gets called.
At this point acpi_bus_get_device(dep->consumer) get called,
but since the battery has DEPs it has not been instantiated during the
first acpi_walk_namespace(acpi_bus_check_add), so the
acpi_bus_get_device(dep->consumer) call fails.
Before this commit, acpi_walk_dep_device_list() would now continue
*without* removing the acpi_dep_data entry for this supplier,consumer
pair from the acpi_dep_list.
3. During the second acpi_walk_namespace(acpi_bus_check_add) call
an acpi_device gets instantiated for the battery and
acpi_scan_dep_init() gets called to initialize its dep_unmet val.
Before this commit, the dep_unmet count would include DEPs for
suppliers for which acpi_walk_dep_device_list(supplier_handle)
has already been called, so it will never become 0 and the
ACPI battery driver will never get attached / bind.
Fix the ACPI battery driver never binding in this scenario by making
acpi_walk_dep_device_list() always remove matching acpi_dep_data
entries independent of the acpi_bus_get_device(dep->consumer) call
succeeding or not.
Fixes: 71da201f38 ("ACPI: scan: Defer enumeration of devices with _DEP lists")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- handle boolean device properties imported from Apple firmware
correctly.
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Merge tag 'efi-urgent-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fix from Borislav Petkov:
"A single fix from Lukas: handle boolean device properties imported
from Apple firmware correctly"
* tag 'efi-urgent-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/apple-properties: Reinstate support for boolean properties
toolchains which do not generate section symbols anymore. And a cleanup
ontop.
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Merge tag 'x86_entry_for_v5.11_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Borislav Petkov:
"A single fix for objtool to generate proper unwind info for newer
toolchains which do not generate section symbols anymore. And a
cleanup ontop.
This was originally going to go during the next merge window but
people can already trigger a build error with binutils-2.36 which
doesn't emit section symbols - something which objtool relies on - so
let's expedite it"
* tag 'x86_entry_for_v5.11_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry: Remove put_ret_addr_in_rdi THUNK macro argument
x86/entry: Emit a symbol for register restoring thunk
the recent UIP handling changes the time readout of non-existent RTCs hangs
forever as the read returns always 0xFF which means the UIP bit is
set. Sanity check the RTC before registering by checking the RTC_VALID
register for correctness.
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Merge tag 'timers-urgent-2021-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
"A fix for handling advertised, but non-existent 146818 RTCs correctly.
With the recent UIP handling changes the time readout of non-existent
RTCs hangs forever as the read returns always 0xFF which means the UIP
bit is set.
Sanity check the RTC before registering by checking the RTC_VALID
register for correctness"
* tag 'timers-urgent-2021-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rtc: mc146818: Detect and handle broken RTCs
condition wrong when moving SYSCALL_EMU away from TIF flags.
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Merge tag 'core-urgent-2021-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull single stepping fix from Thomas Gleixner:
"A single fix for the single step reporting regression caused by
getting the condition wrong when moving SYSCALL_EMU away from TIF
flags"
[ There's apparently another problem too, fix pending ]
* tag 'core-urgent-2021-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
entry: Unbreak single step reporting behaviour
One fix for a bug in our soft interrupt masking, which could lead to interrupt
replaying recursing, causing spurious interrupts.
Thanks to:
Nicholas Piggin.
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Merge tag 'powerpc-5.11-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman:
"One fix for a bug in our soft interrupt masking, which could lead to
interrupt replaying recursing, causing spurious interrupts.
Thanks to Nicholas Piggin"
* tag 'powerpc-5.11-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: prevent recursive replay_soft_interrupts causing superfluous interrupt
Pull i2c fix from Wolfram Sang:
"Just one I2C driver update this time"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: mediatek: Move suspend and resume handling to NOIRQ phase
Pull LED fixes from Pavel Machek:
"This pull is due to 'leds: trigger: fix potential deadlock with
libata' -- people find the warn annoying.
It also contains new driver and two trivial fixes"
* 'for-rc-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
leds: rt8515: Add Richtek RT8515 LED driver
dt-bindings: leds: Add DT binding for Richtek RT8515
leds: trigger: fix potential deadlock with libata
leds: leds-ariel: convert comma to semicolon
leds: leds-lm3533: convert comma to semicolon
Highlights include:
Bugfixes:
- SUNRPC: Handle 0 length opaque XDR object data properly
- Fix a layout segment leak in pnfs_layout_process()
- pNFS/NFSv4: Update the layout barrier when we schedule a layoutreturn
- pNFS/NFSv4: Improve rejection of out-of-order layouts
- pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()
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Merge tag 'nfs-for-5.11-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client fixes from Trond Myklebust:
- SUNRPC: Handle 0 length opaque XDR object data properly
- Fix a layout segment leak in pnfs_layout_process()
- pNFS/NFSv4: Update the layout barrier when we schedule a layoutreturn
- pNFS/NFSv4: Improve rejection of out-of-order layouts
- pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()
* tag 'nfs-for-5.11-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: Handle 0 length opaque XDR object data properly
SUNRPC: Move simple_get_bytes and simple_get_netobj into private header
pNFS/NFSv4: Improve rejection of out-of-order layouts
pNFS/NFSv4: Update the layout barrier when we schedule a layoutreturn
pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()
pNFS/NFSv4: Fix a layout segment leak in pnfs_layout_process()
This adds a driver for the Richtek RT8515 dual channel
torch/flash white LED driver.
This LED driver is found in some mobile phones from
Samsung such as the GT-S7710 and GT-I8190.
A V4L interface is added.
We do not have a proper datasheet for the RT8515 but
it turns out that RT9387A has a public datasheet and
is essentially the same chip. We designed the driver
in accordance with this datasheet. The day someone
needs to drive a RT9387A this driver can probably
easily be augmented to handle that chip too.
Sakari Ailus, Pavel Machek and Andy Shevchenko helped
significantly in getting this driver right.
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Cc: newbytee@protonmail.com
Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: linux-media@vger.kernel.org
Cc: phone-devel@vger.kernel.org
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
We have the following potential deadlock condition:
========================================================
WARNING: possible irq lock inversion dependency detected
5.10.0-rc2+ #25 Not tainted
--------------------------------------------------------
swapper/3/0 just changed the state of lock:
ffff8880063bd618 (&host->lock){-...}-{2:2}, at: ata_bmdma_interrupt+0x27/0x200
but this lock took another, HARDIRQ-READ-unsafe lock in the past:
(&trig->leddev_list_lock){.+.?}-{2:2}
and interrupts could create inverse lock ordering between them.
other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&trig->leddev_list_lock);
local_irq_disable();
lock(&host->lock);
lock(&trig->leddev_list_lock);
<Interrupt>
lock(&host->lock);
*** DEADLOCK ***
no locks held by swapper/3/0.
the shortest dependencies between 2nd lock and 1st lock:
-> (&trig->leddev_list_lock){.+.?}-{2:2} ops: 46 {
HARDIRQ-ON-R at:
lock_acquire+0x15f/0x420
_raw_read_lock+0x42/0x90
led_trigger_event+0x2b/0x70
rfkill_global_led_trigger_worker+0x94/0xb0
process_one_work+0x240/0x560
worker_thread+0x58/0x3d0
kthread+0x151/0x170
ret_from_fork+0x1f/0x30
IN-SOFTIRQ-R at:
lock_acquire+0x15f/0x420
_raw_read_lock+0x42/0x90
led_trigger_event+0x2b/0x70
kbd_bh+0x9e/0xc0
tasklet_action_common.constprop.0+0xe9/0x100
tasklet_action+0x22/0x30
__do_softirq+0xcc/0x46d
run_ksoftirqd+0x3f/0x70
smpboot_thread_fn+0x116/0x1f0
kthread+0x151/0x170
ret_from_fork+0x1f/0x30
SOFTIRQ-ON-R at:
lock_acquire+0x15f/0x420
_raw_read_lock+0x42/0x90
led_trigger_event+0x2b/0x70
rfkill_global_led_trigger_worker+0x94/0xb0
process_one_work+0x240/0x560
worker_thread+0x58/0x3d0
kthread+0x151/0x170
ret_from_fork+0x1f/0x30
INITIAL READ USE at:
lock_acquire+0x15f/0x420
_raw_read_lock+0x42/0x90
led_trigger_event+0x2b/0x70
rfkill_global_led_trigger_worker+0x94/0xb0
process_one_work+0x240/0x560
worker_thread+0x58/0x3d0
kthread+0x151/0x170
ret_from_fork+0x1f/0x30
}
... key at: [<ffffffff83da4c00>] __key.0+0x0/0x10
... acquired at:
_raw_read_lock+0x42/0x90
led_trigger_blink_oneshot+0x3b/0x90
ledtrig_disk_activity+0x3c/0xa0
ata_qc_complete+0x26/0x450
ata_do_link_abort+0xa3/0xe0
ata_port_freeze+0x2e/0x40
ata_hsm_qc_complete+0x94/0xa0
ata_sff_hsm_move+0x177/0x7a0
ata_sff_pio_task+0xc7/0x1b0
process_one_work+0x240/0x560
worker_thread+0x58/0x3d0
kthread+0x151/0x170
ret_from_fork+0x1f/0x30
-> (&host->lock){-...}-{2:2} ops: 69 {
IN-HARDIRQ-W at:
lock_acquire+0x15f/0x420
_raw_spin_lock_irqsave+0x52/0xa0
ata_bmdma_interrupt+0x27/0x200
__handle_irq_event_percpu+0xd5/0x2b0
handle_irq_event+0x57/0xb0
handle_edge_irq+0x8c/0x230
asm_call_irq_on_stack+0xf/0x20
common_interrupt+0x100/0x1c0
asm_common_interrupt+0x1e/0x40
native_safe_halt+0xe/0x10
arch_cpu_idle+0x15/0x20
default_idle_call+0x59/0x1c0
do_idle+0x22c/0x2c0
cpu_startup_entry+0x20/0x30
start_secondary+0x11d/0x150
secondary_startup_64_no_verify+0xa6/0xab
INITIAL USE at:
lock_acquire+0x15f/0x420
_raw_spin_lock_irqsave+0x52/0xa0
ata_dev_init+0x54/0xe0
ata_link_init+0x8b/0xd0
ata_port_alloc+0x1f1/0x210
ata_host_alloc+0xf1/0x130
ata_host_alloc_pinfo+0x14/0xb0
ata_pci_sff_prepare_host+0x41/0xa0
ata_pci_bmdma_prepare_host+0x14/0x30
piix_init_one+0x21f/0x600
local_pci_probe+0x48/0x80
pci_device_probe+0x105/0x1c0
really_probe+0x221/0x490
driver_probe_device+0xe9/0x160
device_driver_attach+0xb2/0xc0
__driver_attach+0x91/0x150
bus_for_each_dev+0x81/0xc0
driver_attach+0x1e/0x20
bus_add_driver+0x138/0x1f0
driver_register+0x91/0xf0
__pci_register_driver+0x73/0x80
piix_init+0x1e/0x2e
do_one_initcall+0x5f/0x2d0
kernel_init_freeable+0x26f/0x2cf
kernel_init+0xe/0x113
ret_from_fork+0x1f/0x30
}
... key at: [<ffffffff83d9fdc0>] __key.6+0x0/0x10
... acquired at:
__lock_acquire+0x9da/0x2370
lock_acquire+0x15f/0x420
_raw_spin_lock_irqsave+0x52/0xa0
ata_bmdma_interrupt+0x27/0x200
__handle_irq_event_percpu+0xd5/0x2b0
handle_irq_event+0x57/0xb0
handle_edge_irq+0x8c/0x230
asm_call_irq_on_stack+0xf/0x20
common_interrupt+0x100/0x1c0
asm_common_interrupt+0x1e/0x40
native_safe_halt+0xe/0x10
arch_cpu_idle+0x15/0x20
default_idle_call+0x59/0x1c0
do_idle+0x22c/0x2c0
cpu_startup_entry+0x20/0x30
start_secondary+0x11d/0x150
secondary_startup_64_no_verify+0xa6/0xab
This lockdep splat is reported after:
commit e918188611 ("locking: More accurate annotations for read_lock()")
To clarify:
- read-locks are recursive only in interrupt context (when
in_interrupt() returns true)
- after acquiring host->lock in CPU1, another cpu (i.e. CPU2) may call
write_lock(&trig->leddev_list_lock) that would be blocked by CPU0
that holds trig->leddev_list_lock in read-mode
- when CPU1 (ata_ac_complete()) tries to read-lock
trig->leddev_list_lock, it would be blocked by the write-lock waiter
on CPU2 (because we are not in interrupt context, so the read-lock is
not recursive)
- at this point if an interrupt happens on CPU0 and
ata_bmdma_interrupt() is executed it will try to acquire host->lock,
that is held by CPU1, that is currently blocked by CPU2, so:
* CPU0 blocked by CPU1
* CPU1 blocked by CPU2
* CPU2 blocked by CPU0
*** DEADLOCK ***
The deadlock scenario is better represented by the following schema
(thanks to Boqun Feng <boqun.feng@gmail.com> for the schema and the
detailed explanation of the deadlock condition):
CPU 0: CPU 1: CPU 2:
----- ----- -----
led_trigger_event():
read_lock(&trig->leddev_list_lock);
<workqueue>
ata_hsm_qc_complete():
spin_lock_irqsave(&host->lock);
write_lock(&trig->leddev_list_lock);
ata_port_freeze():
ata_do_link_abort():
ata_qc_complete():
ledtrig_disk_activity():
led_trigger_blink_oneshot():
read_lock(&trig->leddev_list_lock);
// ^ not in in_interrupt() context, so could get blocked by CPU 2
<interrupt>
ata_bmdma_interrupt():
spin_lock_irqsave(&host->lock);
Fix by using read_lock_irqsave/irqrestore() in led_trigger_event(), so
that no interrupt can happen in between, preventing the deadlock
condition.
Apply the same change to led_trigger_blink_setup() as well, since the
same deadlock scenario can also happen in power_supply_update_bat_leds()
-> led_trigger_blink() -> led_trigger_blink_setup() (workqueue context),
and potentially prevent other similar usages.
Link: https://lore.kernel.org/lkml/20201101092614.GB3989@xps-13-7390/
Fixes: eb25cb9956 ("leds: convert IDE trigger to common disk trigger")
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Replace a comma between expression statements by a semicolon.
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Reviewed-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Replace a comma between expression statements by a semicolon.
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Merge tag '5.11-rc5-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Four cifs patches found in additional testing of the conversion to the
new mount API: three small option processing ones, and one fixing domain
based DFS referrals"
* tag '5.11-rc5-smb3' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix dfs domain referrals
cifs: returning mount parm processing errors correctly
cifs: fix mounts to subdirectories of target
cifs: ignore auto and noauto options if given
Two minor fixes in drivers. Both changing strings (one in a comment,
one in a module help text) with no code impact.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two minor fixes in drivers. Both changing strings (one in a comment,
one in a module help text) with no code impact"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: Fix description for parameter ql2xenforce_iocb_limit
scsi: target: iscsi: Fix typo in comment
- Cleanups on properties with standard unit suffixes
- Fix overwriting dma_range_map if there's no 'dma-ranges' property
- Fix a bug when creating a /chosen node from ARM ATAGs
- Add missing properties for TI j721e USB binding
- Several doc reference updates due to DT schema conversions
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Merge tag 'devicetree-fixes-for-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Cleanups on properties with standard unit suffixes
- Fix overwriting dma_range_map if there's no 'dma-ranges' property
- Fix a bug when creating a /chosen node from ARM ATAGs
- Add missing properties for TI j721e USB binding
- Several doc reference updates due to DT schema conversions
* tag 'devicetree-fixes-for-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: Cleanup standard unit properties
of/device: Update dma_range_map only when dev has valid dma-ranges
ARM: zImage: atags_to_fdt: Fix node names on added root nodes
dt-bindings: usb: j721e: add ranges and dma-coherent props
dt-bindings:iio:adc: update adc.yaml reference
dt-bindings: memory: mediatek: update mediatek,smi-larb.yaml references
dt-bindings: display: mediatek: update mediatek,dpi.yaml reference
ASoC: audio-graph-card: update audio-graph-card.yaml reference
- Fix memory leaks during vfio-ap resources clean up on KVM pointer
invalidation notification.
- Fix potential specification exception by avoiding unnecessary interrupts
disable after queue reset in vfio-ap.
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Merge tag 's390-5.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix max number of VCPUs reported via ultravisor information sysfs
interface.
- Fix memory leaks during vfio-ap resources clean up on KVM pointer
invalidation notification.
- Fix potential specification exception by avoiding unnecessary
interrupts disable after queue reset in vfio-ap.
* tag 's390-5.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: uv: Fix sysfs max number of VCPUs reporting
s390/vfio-ap: No need to disable IRQ after queue reset
s390/vfio-ap: clean up vfio_ap resources when KVM pointer invalidated
* A fix to avoid initializing max_mapnr to be too large, which may
manifest on NUMA systems.
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Merge tag 'riscv-for-linus-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fix from Palmer Dabbelt:
"A fix to avoid initializing max_mapnr to be too large, which may
manifest on NUMA systems"
* tag 'riscv-for-linus-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fixup pfn_valid error with wrong max_mapnr
- Fix the virt_addr_valid() returning true for < PAGE_OFFSET addresses.
- Do not blindly trust the DMA masks from ACPI/IORT.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Fix the virt_addr_valid() returning true for < PAGE_OFFSET addresses.
- Do not blindly trust the DMA masks from ACPI/IORT.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
ACPI/IORT: Do not blindly trust DMA masks from firmware
arm64: Fix kernel address detection of __is_lm_address()
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Merge tag 'for-5.11-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few more fixes for a late rc:
- fix lockdep complaint on 32bit arches and also remove an unsafe
memory use due to device vs filesystem lifetime
- two fixes for free space tree:
* race during log replay and cache rebuild, now more likely to
happen due to changes in this dev cycle
* possible free space tree corruption with online conversion
during initial tree population"
* tag 'for-5.11-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix log replay failure due to race with space cache rebuild
btrfs: fix lockdep warning due to seqcount_mutex on 32bit arch
btrfs: fix possible free space tree corruption with online conversion
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Merge tag 'block-5.11-2021-01-29' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"All over the place fixes for this release:
- blk-cgroup iteration teardown resched fix (Baolin)
- NVMe pull request from Christoph:
- add another Write Zeroes quirk (Chaitanya Kulkarni)
- handle a no path available corner case (Daniel Wagner)
- use the proper RCU aware list_add helper (Chao Leng)
- bcache regression fix (Coly)
- bdev->bd_size_lock IRQ fix. This will be fixed in drivers for 5.12,
but for now, we'll make it IRQ safe (Damien)
- null_blk zoned init fix (Damien)
- add_partition() error handling fix (Dinghao)
- s390 dasd kobject fix (Jan)
- nbd fix for freezing queue while adding connections (Josef)
- tag queueing regression fix (Ming)
- revert of a patch that inadvertently meant that we regressed write
performance on raid (Maxim)"
* tag 'block-5.11-2021-01-29' of git://git.kernel.dk/linux-block:
null_blk: cleanup zoned mode initialization
nvme-core: use list_add_tail_rcu instead of list_add_tail for nvme_init_ns_head
nvme-multipath: Early exit if no path is available
nvme-pci: add the DISABLE_WRITE_ZEROES quirk for a SPCC device
bcache: only check feature sets when sb->version >= BCACHE_SB_VERSION_CDEV_WITH_FEATURES
block: fix bd_size_lock use
blk-cgroup: Use cond_resched() when destroy blkgs
Revert "block: simplify set_init_blocksize" to regain lost performance
nbd: freeze the queue while we're adding connections
s390/dasd: Fix inconsistent kobject removal
block: Fix an error handling in add_partition
blk-mq: test QUEUE_FLAG_HCTX_ACTIVE for sbitmap_shared in hctx_may_queue
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Merge tag 'io_uring-5.11-2021-01-29' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"We got the cancelation story sorted now, so for all intents and
purposes, this should be it for 5.11 outside of any potential little
fixes that may come in. This contains:
- task_work task state fixes (Hao, Pavel)
- Cancelation fixes (me, Pavel)
- Fix for an inflight req patch in this release (Pavel)
- Fix for a lock deadlock issue (Pavel)"
* tag 'io_uring-5.11-2021-01-29' of git://git.kernel.dk/linux-block:
io_uring: reinforce cancel on flush during exit
io_uring: fix sqo ownership false positive warning
io_uring: fix list corruption for splice file_get
io_uring: fix flush cqring overflow list while TASK_INTERRUPTIBLE
io_uring: fix wqe->lock/completion_lock deadlock
io_uring: fix cancellation taking mutex while TASK_UNINTERRUPTIBLE
io_uring: fix __io_uring_files_cancel() with TASK_UNINTERRUPTIBLE
io_uring: only call io_cqring_ev_posted() if events were posted
io_uring: if we see flush on exit, cancel related tasks
The LiteX SOC controller driver makes use of IOMEM functions like
devm_platform_ioremap_resource(), which are only available if
CONFIG_HAS_IOMEM is defined.
This causes the driver to be enable under make ARCH=um allyesconfig,
even though it won't build.
By adding a dependency on HAS_IOMEM, the driver will not be enabled on
architectures which don't support it.
Fixes: 22447a99c9 ("drivers/soc/litex: add LiteX SoC Controller driver")
Signed-off-by: David Gow <davidgow@google.com>
[shorne@gmail.com: Fix typo in commit message pointed out in review]
Signed-off-by: Stafford Horne <shorne@gmail.com>
Including:
- AMD IOMMU Fix to make sure features are detected before they
are queried.
- Intel IOMMU address alignment check fix for an IOLTB flushing
command.
- Performance fix for Intel IOMMU to make sure the code does not
do full IOTLB flushes all the time. Those flushes are very
expensive on emulated IOMMUs.
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Merge tag 'iommu-fixes-v5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
- AMD IOMMU fix to make sure features are detected before they are
queried.
- Intel IOMMU address alignment check fix for an IOLTB flushing
command.
- Performance fix for Intel IOMMU to make sure the code does not do
full IOTLB flushes all the time. Those flushes are very expensive
on emulated IOMMUs.
* tag 'iommu-fixes-v5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Do not use flush-queue when caching-mode is on
iommu/vt-d: Correctly check addr alignment in qi_flush_dev_iotlb_pasid()
iommu/amd: Use IVHD EFR for early initialization of IOMMU features
- Fix a deadlock caused by attempting to acquire the same mutex
twice in a row in the "kexec jump" code (Baoquan He).
- Modify the hibernation image saving code to flush the unwritten
data to the swap storage later so as to avoid failing to write the
image signature which is possible in some cases (Laurent Badel).
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Merge tag 'pm-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a deadlock in the 'kexec jump' code and address a possible
hibernation image creation issue.
Specifics:
- Fix a deadlock caused by attempting to acquire the same mutex twice
in a row in the "kexec jump" code (Baoquan He)
- Modify the hibernation image saving code to flush the unwritten
data to the swap storage later so as to avoid failing to write the
image signature which is possible in some cases (Laurent Badel)"
* tag 'pm-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: hibernate: flush swap writer after marking
kernel: kexec: remove the lock operation of system_transition_mutex
- Modify the ACPI thermal driver to avoid evaluating _TMP directly
in its Notify () handler callback and running too many thermal
checks for one thermal zone at the same time so as to address a
work item accumulation issue observed on some systems that fail
to shut down as a result of it (Rafael Wysocki).
- Modify the ACPI uevent file creation code to avoid putting
multiple "MODALIAS=" entries in one uevent file in sysfs which
breaks systemd-udevd (Kai-Heng Feng).
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Merge tag 'acpi-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix the handling of notifications in the ACPI thermal driver and
address a device enumeration issue leading to the presence of multiple
'MODALIAS=' entries in one uevent file in sysfs in some cases.
Specifics:
- Modify the ACPI thermal driver to avoid evaluating _TMP directly in
its Notify () handler callback and running too many thermal checks
for one thermal zone at the same time so as to address a work item
accumulation issue observed on some systems that fail to shut down
as a result of it (Rafael Wysocki)
- Modify the ACPI uevent file creation code to avoid putting multiple
'MODALIAS=' entries in one uevent file in sysfs which breaks
systemd-udevd (Kai-Heng Feng)"
* tag 'acpi-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: thermal: Do not call acpi_thermal_check() directly
ACPI: sysfs: Prefer "compatible" modalias
nouveau:
- fix svm init conditions
- fix nv50 modesetting regression
- fix cursor plane modifiers
- fix > 64x64 cursor regression
vc4:
- Fix LBM size calculation
- Fix high resolutions for hvs5
i915:
- Fix ICL MG PHY vswing
- Fix subplatform handling
- Fix selftest memleak
- Clear CACHE_MODE prior to clearing residuals
- Always flush the active worker before returning from the wait
- Always try to reserve GGTT address 0x0
amdgpu:
- Fix a fan control regression on some boards
- Fix clang warning
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Merge tag 'drm-fixes-2021-01-29' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Weekly fixes for graphics, nothing too major, nouveau has a few
regression fixes for various fallout from header changes previously,
vc4 has two fixes, two amdgpu, and a smattering of i915 fixes.
All seems on course for a quieter rc7, fingers crossed.
nouveau:
- fix svm init conditions
- fix nv50 modesetting regression
- fix cursor plane modifiers
- fix > 64x64 cursor regression
vc4:
- Fix LBM size calculation
- Fix high resolutions for hvs5
i915:
- Fix ICL MG PHY vswing
- Fix subplatform handling
- Fix selftest memleak
- Clear CACHE_MODE prior to clearing residuals
- Always flush the active worker before returning from the wait
- Always try to reserve GGTT address 0x0
amdgpu:
- Fix a fan control regression on some boards
- Fix clang warning"
* tag 'drm-fixes-2021-01-29' of git://anongit.freedesktop.org/drm/drm:
drm/nouveau/kms/gk104-gp1xx: Fix > 64x64 cursors
drm/nouveau/kms/nv50-: Report max cursor size to userspace
drivers/nouveau/kms/nv50-: Reject format modifiers for cursor planes
drm/nouveau/svm: fail NOUVEAU_SVM_INIT ioctl on unsupported devices
drm/nouveau/dispnv50: Restore pushing of all data.
amdgpu: fix clang build warning
Revert "drm/amdgpu/swsmu: drop set_fan_speed_percent (v2)"
drm/i915/gt: Always try to reserve GGTT address 0x0
drm/i915: Always flush the active worker before returning from the wait
drm/i915/selftest: Fix potential memory leak
drm/i915: Check for all subplatform bits
drm/i915: Fix ICL MG PHY vswing handling
drm/i915/gt: Clear CACHE_MODE prior to clearing residuals
drm/vc4: Correct POS1_SCL for hvs5
drm/vc4: Correct lbm size and calculation
drm/nouveau/nvif: fix method count when pushing an array
It turns out that the vfs_iocb_iter_{read,write}() functions are
entirely broken, and don't actually use the passed-in file pointer for
IO - only for the preparatory work (permission checking and for the
write_iter function lookup).
That worked fine for overlayfs, which always builds the new iocb with
the same file pointer that it passes in, but in the general case it ends
up doing nonsensical things (and could cause an iterator call that
doesn't even match the passed-in file pointer).
This subtly broke the tty conversion to write_iter in commit
9bb48c82ac ("tty: implement write_iter"), because the console
redirection didn't actually end up redirecting anything, since the
passed-in file pointer was basically ignored, and the actual write was
done with the original non-redirected console tty after all.
The main visible effect of this is that the console messages were no
longer logged to /var/log/boot.log during graphical boot.
Fix the issue by simply not using the vfs write "helper" function at
all, and just redirecting the write entirely internally to the tty
layer. Do the target writability permission checks when actually
registering the target tty with TIOCCONS instead of at write time.
Fixes: 9bb48c82ac ("tty: implement write_iter")
Reported-and-tested-by: Hans de Goede <hdegoede@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
To avoid potential compilation problems, replaced the badly written
MB_TO_SECTS() macro (missing parenthesis around the argument use) with
the inline function mb_to_sects(). And while at it, simplify the
calculation of the total number of zones of the device using the
round_up() macro.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The new mount API requires additional changes to how DFS
is handled. Additional testing of DFS uncovered problems
with domain based DFS referrals (a follow on patch addresses
DFS links) which this patch addresses.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
of UID translations to occur, in some configurations, when setting v3
namespaced file capabilities.
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Merge tag 'ecryptfs-5.11-rc6-setxattr-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
Pull ecryptfs fix from Tyler Hicks:
"Fix a regression that resulted in two rounds of UID translations when
setting v3 namespaced file capabilities in some configurations"
* tag 'ecryptfs-5.11-rc6-setxattr-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
ecryptfs: fix uid translation for setxattr on security.capability
* drm/vc4: Fix LBM size calculation; Fix high resolutions for hvs5
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Merge tag 'drm-misc-fixes-2021-01-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Short summary of fixes pull (less than what git shortlog provides):
* drm/vc4: Fix LBM size calculation; Fix high resolutions for hvs5
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YBEco1Vxeny8U/ca@linux-uq9g
While we do handle the additional cursor sizes introduced in NVE4, it looks
like we accidentally broke this when converting over to use Nvidia's
display headers. Since we now use NVVAL in dispnv50/head907d.c in order to
format the value for the cursor layout and NVD9 only had one byte reserved
vs. the 2 bytes reserved in later generations, we end up accidentally
stripping the second bit in the cursor layout format parameter - causing us
to set the wrong cursor size.
This fixes that by adding our own curs_set hook for 917d which uses the
NV917D headers.
Cc: Martin Peres <martin.peres@free.fr>
Cc: Jeremy Cline <jcline@redhat.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: <stable@vger.kernel.org> # v5.9+
Signed-off-by: Lyude Paul <lyude@redhat.com>
Fixes: ed0b86a90b ("drm/nouveau/kms/nv50-: use NVIDIA's headers for core head_curs_set()")
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: Martin Peres <martin.peres@free.fr>
Cc: Jeremy Cline <jcline@redhat.com>
Cc: Simon Ser <contact@emersion.fr>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Tested-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Nvidia hardware doesn't actually support using tiling formats with the
cursor plane, only linear is allowed. In the future, we should write a
testcase for this.
Fixes: c586f30bf7 ("drm/nouveau/kms: Add format mod prop to base/ovly/nvdisp")
Cc: James Jones <jajones@nvidia.com>
Cc: Martin Peres <martin.peres@free.fr>
Cc: Jeremy Cline <jcline@redhat.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: <stable@vger.kernel.org> # v5.8+
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: James Jones <jajones@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Fixes a crash when trying to create a channel on e.g. Turing GPUs when
NOUVEAU_SVM_INIT was called before.
Fixes: eeaf06ac1a ("drm/nouveau/svm: initial support for shared virtual memory")
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Commit f844eb485e introduced a regression for
NV50, which lead to visual artifacts, tearing and eventual crashes.
In the changes of f844eb485e only the first line
was correctly translated to the new NVIDIA header macros:
- PUSH_NVSQ(push, NV827C, 0x0110, 0,
- 0x0114, 0);
+ PUSH_MTHD(push, NV827C, SET_PROCESSING,
+ NVDEF(NV827C, SET_PROCESSING, USE_GAIN_OFS, DISABLE));
The lower part ("0x0114, 0") was probably omitted by accident.
This patch restores the push of the missing data and fixes the regression.
Signed-off-by: Bastian Beranek <bastian.beischer@rwth-aachen.de>
Fixes: f844eb485e ("drm/nouveau/kms/nv50-: use NVIDIA's headers for wndw image_set()")
Link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/14
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
What 84965ff8a8 ("io_uring: if we see flush on exit, cancel related tasks")
really wants is to cancel all relevant REQ_F_INFLIGHT requests reliably.
That can be achieved by io_uring_cancel_files(), but we'll miss it
calling io_uring_cancel_task_requests(files=NULL) from io_uring_flush(),
because it will go through __io_uring_cancel_task_requests().
Just always call io_uring_cancel_files() during cancel, it's good enough
for now.
Cc: stable@vger.kernel.org # 5.9+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
wireless-drivers and netfilter trees. Nothing scary, Intel WiFi-related
fixes seemed most notable to the users.
Current release - regressions:
- dsa: microchip: ksz8795: fix KSZ8794 port map again to program
the CPU port correctly
Current release - new code bugs:
- iwlwifi: pcie: reschedule in long-running memory reads
Previous releases - regressions:
- iwlwifi: dbg: don't try to overwrite read-only FW data
- iwlwifi: provide gso_type to GSO packets
- octeontx2: make sure the buffer is 128 byte aligned
- tcp: make TCP_USER_TIMEOUT accurate for zero window probes
- xfrm: fix wraparound in xfrm_policy_addr_delta()
- xfrm: fix oops in xfrm_replay_advance_bmp due to a race between CPUs
in presence of packet reorder
- tcp: fix TLP timer not set when CA_STATE changes from DISORDER
to OPEN
- wext: fix NULL-ptr-dereference with cfg80211's lack of commit()
Previous releases - always broken:
- igc: fix link speed advertising
- stmmac: configure EHL PSE0 GbE and PSE1 GbE to 32 bits DMA addressing
- team: protect features update by RCU to avoid deadlock
- xfrm: fix disable_xfrm sysctl when used on xfrm interfaces themselves
- fec: fix temporary RMII clock reset on link up
- can: dev: prevent potential information leak in can_fill_info()
Misc:
- mrp: fix bad packing of MRP test packet structures
- uapi: fix big endian definition of ipv6_rpl_sr_hdr
- add David Ahern to IPv4/IPv6 maintainers
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes including fixes from can, xfrm, wireless,
wireless-drivers and netfilter trees. Nothing scary, Intel
WiFi-related fixes seemed most notable to the users.
Current release - regressions:
- dsa: microchip: ksz8795: fix KSZ8794 port map again to program the
CPU port correctly
Current release - new code bugs:
- iwlwifi: pcie: reschedule in long-running memory reads
Previous releases - regressions:
- iwlwifi: dbg: don't try to overwrite read-only FW data
- iwlwifi: provide gso_type to GSO packets
- octeontx2: make sure the buffer is 128 byte aligned
- tcp: make TCP_USER_TIMEOUT accurate for zero window probes
- xfrm: fix wraparound in xfrm_policy_addr_delta()
- xfrm: fix oops in xfrm_replay_advance_bmp due to a race between
CPUs in presence of packet reorder
- tcp: fix TLP timer not set when CA_STATE changes from DISORDER to
OPEN
- wext: fix NULL-ptr-dereference with cfg80211's lack of commit()
Previous releases - always broken:
- igc: fix link speed advertising
- stmmac: configure EHL PSE0 GbE and PSE1 GbE to 32 bits DMA
addressing
- team: protect features update by RCU to avoid deadlock
- xfrm: fix disable_xfrm sysctl when used on xfrm interfaces
themselves
- fec: fix temporary RMII clock reset on link up
- can: dev: prevent potential information leak in can_fill_info()
Misc:
- mrp: fix bad packing of MRP test packet structures
- uapi: fix big endian definition of ipv6_rpl_sr_hdr
- add David Ahern to IPv4/IPv6 maintainers"
* tag 'net-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (86 commits)
rxrpc: Fix memory leak in rxrpc_lookup_local
mlxsw: spectrum_span: Do not overwrite policer configuration
selftests: forwarding: Specify interface when invoking mausezahn
stmmac: intel: Configure EHL PSE0 GbE and PSE1 GbE to 32 bits DMA addressing
net: usb: cdc_ether: added support for Thales Cinterion PLSx3 modem family.
ibmvnic: Ensure that CRQ entry read are correctly ordered
MAINTAINERS: add missing header for bonding
net: decnet: fix netdev refcount leaking on error path
net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP
can: dev: prevent potential information leak in can_fill_info()
net: fec: Fix temporary RMII clock reset on link up
net: lapb: Add locking to the lapb module
team: protect features update by RCU to avoid deadlock
MAINTAINERS: add David Ahern to IPv4/IPv6 maintainers
net/mlx5: CT: Fix incorrect removal of tuple_nat_node from nat rhashtable
net/mlx5e: Revert parameters on errors when changing MTU and LRO state without reset
net/mlx5e: Revert parameters on errors when changing trust state without reset
net/mlx5e: Correctly handle changing the number of queues when the interface is down
net/mlx5e: Fix CT rule + encap slow path offload and deletion
net/mlx5e: Disable hw-tc-offload when MLX5_CLS_ACT config is disabled
...
During additional testing of the updated cifs.ko with the
new mount API support, we found a few additional cases where
we were logging errors, but not returning them to the user.
For example:
a) invalid security mechanisms
b) invalid cache options
c) unsupported rdma
d) invalid smb dialect requested
Fixes: 24e0a1eff9 ("cifs: switch to new mount api")
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Ido Schimmel says:
====================
mlxsw: Various fixes
Patch #1 fixes wrong invocation of mausezahn in a couple of selftests.
The tests started failing after Fedora updated their libnet package from
version 1.1.6 to 1.2.1. With the fix the tests pass regardless of libnet
version.
Patch #2 fixes an issue in the mirroring to CPU code that results in
policer configuration being overwritten.
====================
Link: https://lore.kernel.org/r/20210128144820.3280295-1-idosch@idosch.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
