Commit Graph

982974 Commits

Author SHA1 Message Date
Linus Torvalds
d748287a28 regulator: Fixes for v5.10
Mostly core fixes here, one set from Michał Mirosław which cleans up
 some issues introduced as part of the coupled regulators work, one
 memory leak during probe and two due to regulators which have an input
 supply name and regulator name which are identical, which is very
 unusual.  There's also a fix for our handling of the similarly unusual
 case where we can't determine if a regulator is enabled during boot.
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Merge tag 'regulator-fix-v5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "Mostly core fixes here, one set from Michał Mirosław which cleans up
  some issues introduced as part of the coupled regulators work, one
  memory leak during probe and two due to regulators which have an input
  supply name and regulator name which are identical, which is very
  unusual.

  There's also a fix for our handling of the similarly unusual case
  where we can't determine if a regulator is enabled during boot"

* tag 'regulator-fix-v5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: ti-abb: Fix array out of bound read access on the first transition
  regulator: workaround self-referent regulators
  regulator: avoid resolve_supply() infinite recursion
  regulator: fix memory leak with repeated set_machine_constraints()
  regulator: pfuze100: limit pfuze-support-disable-sw to pfuze{100,200}
  regulator: core: don't disable regulator if is_enabled return error.
2020-11-19 10:55:54 -08:00
Georg Kohmann
2d8f6481c1 ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module
IPV6=m
NF_DEFRAG_IPV6=y

ld: net/ipv6/netfilter/nf_conntrack_reasm.o: in function
`nf_ct_frag6_gather':
net/ipv6/netfilter/nf_conntrack_reasm.c:462: undefined reference to
`ipv6_frag_thdr_truncated'

Netfilter is depending on ipv6 symbol ipv6_frag_thdr_truncated. This
dependency is forcing IPV6=y.

Remove this dependency by moving ipv6_frag_thdr_truncated out of ipv6. This
is the same solution as used with a similar issues: Referring to
commit 70b095c843 ("ipv6: remove dependency of nf_defrag_ipv6 on ipv6
module")

Fixes: 9d9e937b1c ("ipv6/netfilter: Discard first fragment not including all headers")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Georg Kohmann <geokohma@cisco.com>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Link: https://lore.kernel.org/r/20201119095833.8409-1-geokohma@cisco.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-19 10:49:50 -08:00
Linus Torvalds
841d6e9ec9 - Disable the CPU PM notifier for OMAP4430 for suspend in order to
prevent wrong temperature leading to a critical shutdown (Peter
   Ujfalusi)
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Merge tag 'thermal-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux

Pull thermal fix from Daniel Lezcano:
 "Disable the CPU PM notifier for OMAP4430 for suspend in order to
  prevent wrong temperature leading to a critical shutdown (Peter
  Ujfalusi)"

* tag 'thermal-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
  thermal: ti-soc-thermal: Disable the CPU PM notifier for OMAP4430
2020-11-19 10:49:35 -08:00
Pierre-Louis Bossart
d512ef22d7
ASoC: SOF: Intel: allow for coexistence between SOF and catpt drivers
Now that we have all the support needed for coexistence between ACPI
drivers for Broadwell, remove mutual exclusion in the Kconfig
file. The selection is done by playing with the snd_intel_dspcfg
module 'dsp_driver' parameter.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-14-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:45 +00:00
Pierre-Louis Bossart
0e5cc22162
ALSA: hda: intel-dsp-config: ignore dsp_driver parameter for PCI legacy devices
On Haswell/Broadwell/Baytrail/Braswell, the DSP is not used for the
HDMI/DP interface, and setting the dsp_driver parameter to a value > 1
has the side effect of preventing the HDaudio legacy driver from
probing.

The DSP driver selection should really only handle cases where a DSP
is actually used. This patch traps all known PCI devices and makes
sure the HDaudio driver can always be probed.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-15-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:44 +00:00
Pierre-Louis Bossart
ec8a15d3a7
ASoC: Intel: catpt: add dynamic selection of DSP driver
Follow PCI example and stop the probe when another driver is desired
for the same ACPI HID.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-13-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:43 +00:00
Pierre-Louis Bossart
8643e85aab
ASoC: Intel: broadwell: set card and driver name dynamically
Remove last hard-coded build-time dependency

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-12-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:42 +00:00
Pierre-Louis Bossart
803e591337
ALSA: hda: intel-dsp-config: add Broadwell ACPI DSP driver selection
Add ACPI IDs for Broadwell (and Haswell for consistency). This
addition is required for dynamic selection of drivers on those
devices.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:41 +00:00
Pierre-Louis Bossart
b405b4318c
ASoC: SOF: Intel: allow for coexistence between SOF and Atom/SST drivers
Now that we have all the support needed for coexistence between ACPI
drivers for Baytrail and Cherrytrail, remove mutual exclusion in the
Kconfig file. The selection is done by playing with the snd_intel_dsp
module parameter.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-10-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:40 +00:00
Pierre-Louis Bossart
df5f5edaef
ASoC: Intel: Atom: add dynamic selection of DSP driver
Follow PCI example and stop the probe when another driver is desired
for the same ACPI HID.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-9-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:39 +00:00
Pierre-Louis Bossart
f7313f9fc2
ASoC: SOF: acpi: add dynamic selection of DSP driver
Follow PCI example and stop the probe when another driver is desired
for the same ACPI HID.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:39 +00:00
Pierre-Louis Bossart
05ff312bad
ASoC: Intel: byt/cht: set pm ops dynamically
The Atom/SST driver does not rely on ASoC power management, but the
SOF driver does. Rather than using a hard-coded build-time assignment,
we can set this pm_ops dynamically depending on what the parent
is. That will remove the last build-time dependency and allow for
coexistence of both SST and SOF drivers for Baytrail/Cherrytrail.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:38 +00:00
Pierre-Louis Bossart
41656c3dc2
ASoC: Intel: boards: byt/cht: set card and driver name at run time
To avoid hard-coded variations between SOF and SST drivers, set the
card name and driver dynamically depending on the parent type. This is
the first pass required to let distributions select which drivers to
use with kernel parameters instead of build-time selection.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:37 +00:00
Pierre-Louis Bossart
644eebdbbf
ASoC: soc-acpi: add helper to identify parent driver.
Intel machine drivers are used by parent platform drivers based on
closed-source firmware (Atom/SST and catpt) and SOF-based ones.

In some cases for ACPI-based platforms, the behavior of machine
drivers needs to be modified depending on the parent type, typically
for card names and power management.

An initial solution based on passing a boolean flag as a platform
device parameter was tested earlier. Since it looked overkill, this
patch suggests instead a simple string comparison to identify an SOF
parent device/driver.

Suggested-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:36 +00:00
Pierre-Louis Bossart
b568230529
ALSA: hda: intel-dsp-config: add helper for ACPI DSP driver selection
Mirror capabilities provided for PCI devices, so that distributions
can select which ACPI driver is loaded at run-time with kernel
parameters and DMI tables instead of forcing a build-time selection.

The "legacy" option supported for HDaudio has no meaning here and will
be ignored.

The 'SST' driver based on closed-source firmware has the priority to
avoid any impact on users, and the choice to use SOF is strictly
opt-in. This may change at some point when the 'SST' driver is
deprecated on Baytrail/Cherrytrail.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20201112223825.39765-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-19 18:24:35 +00:00
Catalin Marinas
791ab8b2e3 arm64: Ignore any DMA offsets in the max_zone_phys() calculation
Currently, the kernel assumes that if RAM starts above 32-bit (or
zone_bits), there is still a ZONE_DMA/DMA32 at the bottom of the RAM and
such constrained devices have a hardwired DMA offset. In practice, we
haven't noticed any such hardware so let's assume that we can expand
ZONE_DMA32 to the available memory if no RAM below 4GB. Similarly,
ZONE_DMA is expanded to the 4GB limit if no RAM addressable by
zone_bits.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20201118185809.1078362-1-catalin.marinas@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-11-19 17:58:55 +00:00
Takashi Iwai
d21b96c8ed ALSA: mixart: Fix mutex deadlock
The code change for switching to non-atomic mode brought the
unexpected mutex deadlock in get_msg().  It converted the spinlock
with the existing mutex, but there were calls with the already holding
the mutex.  Since the only place that needs the extra lock is the code
path from snd_mixart_send_msg(), remove the mutex lock in get_msg()
and apply in the caller side for fixing the mutex deadlock.

Fixes: 8d3a8b5cb5 ("ALSA: mixart: Use nonatomic PCM ops")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201119121440.18945-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-11-19 18:26:30 +01:00
Rikard Falkeborn
2002d29513 x86/resctrl: Constify kernfs_ops
The only usage of the kf_ops field in the rftype struct is to pass
it as argument to __kernfs_create_file(), which accepts a pointer to
const. Make it a pointer to const. This makes it possible to make
rdtgroup_kf_single_ops and kf_mondata_ops const, which allows the
compiler to put them in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lkml.kernel.org/r/20201110230228.801785-1-rikard.falkeborn@gmail.com
2020-11-19 18:23:45 +01:00
Dave Chinner
883a790a84 xfs: don't allow NOWAIT DIO across extent boundaries
Jens has reported a situation where partial direct IOs can be issued
and completed yet still return -EAGAIN. We don't want this to report
a short IO as we want XFS to complete user DIO entirely or not at
all.

This partial IO situation can occur on a write IO that is split
across an allocated extent and a hole, and the second mapping is
returning EAGAIN because allocation would be required.

The trivial reproducer:

$ sudo xfs_io -fdt -c "pwrite 0 4k" -c "pwrite -V 1 -b 8k -N 0 8k" /mnt/scr/foo
wrote 4096/4096 bytes at offset 0
4 KiB, 1 ops; 0.0001 sec (27.509 MiB/sec and 7042.2535 ops/sec)
pwrite: Resource temporarily unavailable
$

The pwritev2(0, 8kB, RWF_NOWAIT) call returns EAGAIN having done
the first 4kB write:

 xfs_file_direct_write: dev 259:1 ino 0x83 size 0x1000 offset 0x0 count 0x2000
 iomap_apply:          dev 259:1 ino 0x83 pos 0 length 8192 flags WRITE|DIRECT|NOWAIT (0x31) ops xfs_direct_write_iomap_ops caller iomap_dio_rw actor iomap_dio_actor
 xfs_ilock_nowait:     dev 259:1 ino 0x83 flags ILOCK_SHARED caller xfs_ilock_for_iomap
 xfs_iunlock:          dev 259:1 ino 0x83 flags ILOCK_SHARED caller xfs_direct_write_iomap_begin
 xfs_iomap_found:      dev 259:1 ino 0x83 size 0x1000 offset 0x0 count 8192 fork data startoff 0x0 startblock 24 blockcount 0x1
 iomap_apply_dstmap:   dev 259:1 ino 0x83 bdev 259:1 addr 102400 offset 0 length 4096 type MAPPED flags DIRTY

Here the first iomap loop has mapped the first 4kB of the file and
issued the IO, and we enter the second iomap_apply loop:

 iomap_apply: dev 259:1 ino 0x83 pos 4096 length 4096 flags WRITE|DIRECT|NOWAIT (0x31) ops xfs_direct_write_iomap_ops caller iomap_dio_rw actor iomap_dio_actor
 xfs_ilock_nowait:     dev 259:1 ino 0x83 flags ILOCK_SHARED caller xfs_ilock_for_iomap
 xfs_iunlock:          dev 259:1 ino 0x83 flags ILOCK_SHARED caller xfs_direct_write_iomap_begin

And we exit with -EAGAIN out because we hit the allocate case trying
to make the second 4kB block.

Then IO completes on the first 4kB and the original IO context
completes and unlocks the inode, returning -EAGAIN to userspace:

 xfs_end_io_direct_write: dev 259:1 ino 0x83 isize 0x1000 disize 0x1000 offset 0x0 count 4096
 xfs_iunlock:          dev 259:1 ino 0x83 flags IOLOCK_SHARED caller xfs_file_dio_aio_write

There are other vectors to the same problem when we re-enter the
mapping code if we have to make multiple mappinfs under NOWAIT
conditions. e.g. failing trylocks, COW extents being found,
allocation being required, and so on.

Avoid all these potential problems by only allowing IOMAP_NOWAIT IO
to go ahead if the mapping we retrieve for the IO spans an entire
allocated extent. This avoids the possibility of subsequent mappings
to complete the IO from triggering NOWAIT semantics by any means as
NOWAIT IO will now only enter the mapping code once per NOWAIT IO.

Reported-and-tested-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-11-19 08:59:11 -08:00
Jiri Olsa
1fd6cee127 libbpf: Fix VERSIONED_SYM_COUNT number parsing
We remove "other info" from "readelf -s --wide" output when
parsing GLOBAL_SYM_COUNT variable, which was added in [1].
But we don't do that for VERSIONED_SYM_COUNT and it's failing
the check_abi target on powerpc Fedora 33.

The extra "other info" wasn't problem for VERSIONED_SYM_COUNT
parsing until commit [2] added awk in the pipe, which assumes
that the last column is symbol, but it can be "other info".

Adding "other info" removal for VERSIONED_SYM_COUNT the same
way as we did for GLOBAL_SYM_COUNT parsing.

[1] aa915931ac ("libbpf: Fix readelf output parsing for Fedora")
[2] 746f534a48 ("tools/libbpf: Avoid counting local symbols in ABI check")

Fixes: 746f534a48 ("tools/libbpf: Avoid counting local symbols in ABI check")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201118211350.1493421-1-jolsa@kernel.org
2020-11-19 08:45:12 -08:00
Hayes Wang
657bc1d10b r8153_ecm: avoid to be prior to r8152 driver
Avoid r8153_ecm is compiled as built-in, if r8152 driver is compiled
as modules. Otherwise, the r8153_ecm would be used, even though the
device is supported by r8152 driver.

Fixes: c1aedf015e ("net/usb/r8153_ecm: support ECM mode for RTL8153")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/1394712342-15778-394-Taiwan-albertk@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-19 08:23:46 -08:00
Jens Axboe
45f703a0d4 nvme fixes for 5.10
- Doorbell Buffer freeing fix (Minwoo Im)
  - CSE log leak fix (Keith Busch)
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Merge tag 'nvme-5.10-2020-11-19' of git://git.infradead.org/nvme into block-5.10

Pull NVMe fixes from Christoph:

"nvme fixes for 5.10

 - Doorbell Buffer freeing fix (Minwoo Im)
 - CSE log leak fix (Keith Busch)"

* tag 'nvme-5.10-2020-11-19' of git://git.infradead.org/nvme:
  nvme: fix memory leak freeing command effects
  nvme: directly cache command effects log
  nvme: free sq/cq dbbuf pointers when dbbuf set fails
2020-11-19 09:23:27 -07:00
Dominique Martinet
5bfe97d738 9p: Fix writeback fid incorrectly being attached to dentry
v9fs_dir_release needs fid->ilist to have been initialized for filp's
fid, not the inode's writeback fid's.

With refcounting this can be improved on later but this appears to fix
null deref issues.

Link: http://lkml.kernel.org/r/1605802012-31133-3-git-send-email-asmadeus@codewreck.org
Fixes: 6636b6dcc3 ("fs/9p: track open fids")
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
2020-11-19 17:22:28 +01:00
Dominique Martinet
ff5e72ebef 9p: apply review requests for fid refcounting
Fix style issues in parent commit ("apply review requests for fid
refcounting"), no functional change.

Link: http://lkml.kernel.org/r/1605802012-31133-2-git-send-email-asmadeus@codewreck.org
Fixes: 6636b6dcc3 ("9p: add refcount to p9_fid struct")
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
2020-11-19 17:21:34 +01:00
Jianyong Wu
6636b6dcc3 9p: add refcount to p9_fid struct
Fix race issue in fid contention.

Eric's and Greg's patch offer a mechanism to fix open-unlink-f*syscall
bug in 9p. But there is race issue in fid parallel accesses.
As Greg's patch stores all of fids from opened files into according inode,
so all the lookup fid ops can retrieve fid from inode preferentially. But
there is no mechanism to handle the fid contention issue. For example,
there are two threads get the same fid in the same time and one of them
clunk the fid before the other thread ready to discard the fid. In this
scenario, it will lead to some fatal problems, even kernel core dump.

I introduce a mechanism to fix this race issue. A counter field introduced
into p9_fid struct to store the reference counter to the fid. When a fid
is allocated from the inode or dentry, the counter will increase, and
will decrease at the end of its occupation. It is guaranteed that the
fid won't be clunked before the reference counter go down to 0, then
we can avoid the clunked fid to be used.

tests:
race issue test from the old test case:
for file in {01..50}; do touch f.${file}; done
seq 1 1000 | xargs -n 1 -P 50 -I{} cat f.* > /dev/null

open-unlink-f*syscall test:
I have tested for f*syscall include: ftruncate fstat fchown fchmod faccessat.

Link: http://lkml.kernel.org/r/20200923141146.90046-5-jianyong.wu@arm.com
Fixes: 478ba09edc ("fs/9p: search open fids first")
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
2020-11-19 17:20:39 +01:00
Bjorn Andersson
91ccc45d1e arm64: defconfig: Enable QCOM_SCM as builtin
The Qualcomm SCM driver was never explicitly enabled in the defconfig.
Instead it was (apparently) selected by DRM_MSM and by the recent change
to make it tristate now became =m.

Unfortunately this removes the ability for PINCTRL_MSM and ARM_SMMU to
be =y and with deferred_probe_timeout defaulting to 0 this means that
things such as UART, USB, PCIe and SDHCI probes with their dependencies
ignored.

The lack of pinctrl results in invalid pin configuration and the lack of
iommu results in the system locking up as soon as any form of data
transfer is attempted from any of the affected peripherals.

Mark QCOM_SCM as builtin, to avoid this.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20201118162528.454729-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-19 10:16:35 -06:00
Ben Gardon
b9a98c3437 kvm: x86/mmu: Add TDP MMU SPTE changed trace point
Add an extremely verbose trace point to the TDP MMU to log all SPTE
changes, regardless of callstack / motivation. This is useful when a
complete picture of the paging structure is needed or a change cannot be
explained with the other, existing trace points.

Tested: ran the demand paging selftest on an Intel Skylake machine with
	all the trace points used by the TDP MMU enabled and observed
	them firing with expected values.

This patch can be viewed in Gerrit at:
https://linux-review.googlesource.com/c/virt/kvm/kvm/+/3813

Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20201027175944.1183301-2-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-11-19 10:57:16 -05:00
Ben Gardon
33dd3574f5 kvm: x86/mmu: Add existing trace points to TDP MMU
The TDP MMU was initially implemented without some of the usual
tracepoints found in mmu.c. Correct this discrepancy by adding the
missing trace points to the TDP MMU.

Tested: ran the demand paging selftest on an Intel Skylake machine with
	all the trace points used by the TDP MMU enabled and observed
	them firing with expected values.

This patch can be viewed in Gerrit at:
https://linux-review.googlesource.com/c/virt/kvm/kvm/+/3812

Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20201027175944.1183301-1-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-11-19 10:57:16 -05:00
Mark Brown
36b90846c5
Merge series "ASoC: codecs: add support for LPASS Codec macros" from Srinivas Kandagatla <srinivas.kandagatla@linaro.org>:
This patchset adds support for two Codec Macro blocks( WSA and VA) available in
Qualcomm LPASS (Low Power Audio SubSystem).

There are WSA, VA, TX and RX Macros on LPASS IP, each of the Macro block
has specific connectivity like WSA Macros are intended to connect
to WSA Smart speaker codecs via SoundWire. VA Macro is intended for DMICs,
and TX/RX for Analog codecs via SoundWire like other WCD Codecs to provide
headphone/ear/lineout etc ..

Most of the work is derived from downstream Qualcomm kernels.
Credits to various Qualcomm authors from Patrick Lai's team who have
contributed to this code.

This patchset has been tested on support to Qualcomm Robotics RB5 Development
Kit based on QRB5165 Robotics SoC. This board has 2 WSA881X smart speakers
with onboard DMIC connected to internal LPASS codec via WSA  and VA macros
respectively.

Thanks,
srini

-Changes since v2:
 - various unnecessary variable intializations removed, suggested by Pierre
 - fixed a static checker error
 - collected reviews for dt-bindings.
 - fixed licence headers as suggested by Pierre.

Srinivas Kandagatla (6):
  ASoC: qcom: dt-bindings: add bindings for lpass wsa macro codec
  ASoC: codecs: lpass-wsa-macro: Add support to WSA Macro
  ASoC: codecs: lpass-wsa-macro: add dapm widgets and route
  ASoC: qcom: dt-bindings: add bindings for lpass va macro codec
  ASoC: codecs: lpass-va-macro: Add support to VA Macro
  ASoC: codecs: lpass-va-macro: add dapm widgets and routes

 .../bindings/sound/qcom,lpass-va-macro.yaml   |   67 +
 .../bindings/sound/qcom,lpass-wsa-macro.yaml  |   69 +
 sound/soc/codecs/Kconfig                      |    8 +
 sound/soc/codecs/Makefile                     |    4 +
 sound/soc/codecs/lpass-va-macro.c             | 1503 ++++++++++
 sound/soc/codecs/lpass-wsa-macro.c            | 2464 +++++++++++++++++
 sound/soc/codecs/lpass-wsa-macro.h            |   17 +
 7 files changed, 4132 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-wsa-macro.yaml
 create mode 100644 sound/soc/codecs/lpass-va-macro.c
 create mode 100644 sound/soc/codecs/lpass-wsa-macro.c
 create mode 100644 sound/soc/codecs/lpass-wsa-macro.h

--
2.21.0
2020-11-19 15:32:25 +00:00
Hans de Goede
b4c00e7976 HID: logitech-dj: Fix Dinovo Mini when paired with a MX5x00 receiver
Some users are pairing the Dinovo keyboards with the MX5000 or MX5500
receivers, instead of with the Dinovo receivers. The receivers are
mostly the same (and the air protocol obviously is compatible) but
currently the Dinovo receivers are handled by hid-lg.c while the
MX5x00 receivers are handled by logitech-dj.c.

When using a Dinovo keyboard, with its builtin touchpad, through
logitech-dj.c then the touchpad stops working because when asking the
receiver for paired devices, we get only 1 paired device with
a device_type of REPORT_TYPE_KEYBOARD. And since we don't see a paired
mouse, we have nowhere to send mouse-events to, so we drop them.

Extend the existing fix for the Dinovo Edge for this to also cover the
Dinovo Mini keyboard and also add a mapping to logitech-hidpp for the
Media key on the Dinovo Mini, so that that keeps working too.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1811424
Fixes: f2113c3020 ("HID: logitech-dj: add support for Logitech Bluetooth Mini-Receiver")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2020-11-19 16:27:51 +01:00
Hans de Goede
eec231e060 HID: logitech-dj: Fix an error in mse_bluetooth_descriptor
Fix an error in the mouse / INPUT(2) descriptor used for quad/bt2.0 combo
receivers. Replace INPUT with INPUT (Data,Var,Abs) for the field for the
4 extra buttons which share their report-byte with the low-res hwheel.

This is likely a copy and paste error. I've verified that the new
0x81, 0x02 value matches both the mouse descriptor for the currently
supported MX5000 / MX5500 receivers, as well as the INPUT(2) mouse
descriptors for the Dinovo receivers for which support is being
worked on.

Cc: stable@vger.kernel.org
Fixes: f2113c3020 ("HID: logitech-dj: add support for Logitech Bluetooth Mini-Receiver")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2020-11-19 16:07:45 +01:00
Maxime Ripard
9fa1d7e60a
drm/vc4: hdmi: Disable Wifi Frequencies
There's cross-talk on the RPi4 between the 2.4GHz channels used by the WiFi
chip and some resolutions, most notably 1440p at 60Hz.

In such a case, we can either reject entirely the mode, or lower slightly
the pixel frequency to remove the overlap. Let's go for the latter.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201029134018.1948636-2-maxime@cerno.tech
2020-11-19 15:46:08 +01:00
Maxime Ripard
8d15aa4ed0
dt-bindings: display: Add a property to deal with WiFi coexistence
The RaspberryPi4 has both a WiFi chip and HDMI outputs capable of doing
4k. Unfortunately, the 1440p resolution at 60Hz has a TMDS rate on the
HDMI cable right in the middle of the first Wifi channel.

Add a property to our HDMI controller, that could be reused by other
similar HDMI controllers, to allow the OS to take whatever measure is
necessary to avoid that crosstalk.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201029134018.1948636-1-maxime@cerno.tech
2020-11-19 15:44:14 +01:00
Mika Westerberg
600c0849cf thunderbolt: Fix use-after-free in remove_unplugged_switch()
Paulian reported a crash that happens when a dock is unplugged during
hibernation:

[78436.228217] thunderbolt 0-1: device disconnected
[78436.228365] BUG: kernel NULL pointer dereference, address: 00000000000001e0
...
[78436.228397] RIP: 0010:icm_free_unplugged_children+0x109/0x1a0
...
[78436.228432] Call Trace:
[78436.228439]  icm_rescan_work+0x24/0x30
[78436.228444]  process_one_work+0x1a3/0x3a0
[78436.228449]  worker_thread+0x30/0x370
[78436.228454]  ? process_one_work+0x3a0/0x3a0
[78436.228457]  kthread+0x13d/0x160
[78436.228461]  ? kthread_park+0x90/0x90
[78436.228465]  ret_from_fork+0x1f/0x30

This happens because remove_unplugged_switch() calls tb_switch_remove()
that releases the memory pointed by sw so the following lines reference
to a memory that might be released already.

Fix this by saving pointer to the parent device before calling
tb_switch_remove().

Reported-by: Paulian Bogdan Marinca <paulian@marinca.net>
Fixes: 4f7c2e0d87 ("thunderbolt: Make sure device runtime resume completes before taking domain lock")
Cc: stable@vger.kernel.org
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-19 17:44:10 +03:00
Thomas Gleixner
01cf158e48 Revert "iommu/vt-d: Take CONFIG_PCI_ATS into account"
This reverts commit 8986f223bd.

The proper fix is queued in Will's tree now

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2020-11-19 15:07:19 +01:00
Masami Hiramatsu
fbc6e1c6e0 docs: bootconfig: Update file format on initrd image
To align the total file size, add padding null character when appending
the bootconfig to initrd image.

Link: https://lkml.kernel.org/r/160576522916.320071.4145530996151028855.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-19 08:55:44 -05:00
Masami Hiramatsu
e1cef2d4c3 tools/bootconfig: Align the bootconfig applied initrd image size to 4
Align the bootconfig applied initrd image size to 4. To fill the gap,
the bootconfig command uses null characters in between the bootconfig
data and the footer. This will expands the footer size but don't change
the checksum.
Thus the block image of the initrd file with bootconfig is as follows.

[initrd][bootconfig][(pad)][size][csum]["#BOOTCONFIG\n"]

Link: https://lkml.kernel.org/r/160576522046.320071.8550680670010950634.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-19 08:55:44 -05:00
Masami Hiramatsu
a995e6bc05 tools/bootconfig: Fix to check the write failure correctly
Fix to check the write(2) failure including partial write
correctly and try to rollback the partial write, because
if there is no BOOTCONFIG_MAGIC string, we can not remove it.

Link: https://lkml.kernel.org/r/160576521135.320071.3883101436675969998.stgit@devnote2

Fixes: 85c46b78da ("bootconfig: Add bootconfig magic word for indicating bootconfig explicitly")
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-19 08:55:44 -05:00
Masami Hiramatsu
a61ea6379a tools/bootconfig: Fix errno reference after printf()
Fix not to refer the errno variable as the result of previous libc
functions after printf() because printf() can change the errno.

Link: https://lkml.kernel.org/r/160576520243.320071.51093664672431249.stgit@devnote2

Fixes: 85c46b78da ("bootconfig: Add bootconfig magic word for indicating bootconfig explicitly")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-19 08:55:44 -05:00
Maxime Ripard
b5dbc4d368
drm/vc4: kms: Document the muxing corner cases
We've had a number of muxing corner-cases with specific ways to reproduce
them, so let's document them to make sure they aren't lost and introduce
regressions later on.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105135656.383350-6-maxime@cerno.tech
2020-11-19 14:48:32 +01:00
Lionel Landwerlin
059a0beb48 drm/i915/perf: workaround register corruption in OATAILPTR
After having written the entire OA buffer with reports, the HW will
write again at the beginning of the OA buffer. It'll indicate it by
setting the WRAP bits in the OASTATUS register.

When a wrap happens and that at the end of the read vfunc we write the
OASTATUS register back to clear the REPORT_LOST bit, we sometimes see
that the OATAILPTR register is reset to a previous position on Gen8/9
(apparently not the case on Gen11+). This leads the next call to the
read vfunc to process reports we've already read. Because we've marked
those as read by clearing the reason & timestamp dwords, they're
discarded and a "Skipping spurious, invalid OA report" message is
emitted.

The workaround to avoid this OATAILPTR value reset seems to be to set
the wrap bits when writing back OASTATUS.

This change has no impact on userspace, it only avoids a bunch of
DRM_NOTE("Skipping spurious, invalid OA report\n") messages.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: 19f81df285 ("drm/i915/perf: Add OA unit support for Gen 8+")
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201117130124.829979-1-lionel.g.landwerlin@intel.com
2020-11-19 15:46:29 +02:00
Maxime Ripard
a72b0458cd
drm/vc4: kms: Split the HVS muxing check in a separate function
The code that assigns HVS channels during atomic_check is starting to grow
a bit big, let's move it into a separate function.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105135656.383350-5-maxime@cerno.tech
2020-11-19 14:45:16 +01:00
Maxime Ripard
a9661f27dc
drm/vc4: kms: Rename NUM_CHANNELS
The NUM_CHANNELS define has a pretty generic name and was right before the
function using it. Let's move to something that makes the hardware-specific
nature more obvious, and to a more appropriate place.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105135656.383350-4-maxime@cerno.tech
2020-11-19 14:45:03 +01:00
Maxime Ripard
213189dbe7
drm/vc4: kms: Remove useless define
NUM_OUTPUTS isn't used anymore, let's remove it.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105135656.383350-3-maxime@cerno.tech
2020-11-19 14:44:56 +01:00
Maxime Ripard
3c354ed1c4
drm/vc4: kms: Switch to drmm_add_action_or_reset
Even though it was pointed in the review by Daniel, and I thought to have
fixed it while applying the patches, but it turns out I forgot to commit
the fixes in the process. Properly fix it this time.

Fixes: dcda7c28bf ("drm/vc4: kms: Add functions to create the state objects")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105135656.383350-2-maxime@cerno.tech
2020-11-19 14:44:33 +01:00
Maxime Ripard
57fb32e632
drm/vc4: hdmi: Block odd horizontal timings
The FIFO between the pixelvalve and the HDMI controller runs at 2 pixels
per clock cycle, and cannot deal with odd timings.

Let's reject any mode with such timings.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201029122522.1917579-2-maxime@cerno.tech
2020-11-19 14:29:26 +01:00
Maxime Ripard
63495f6b4a
drm/vc4: hdmi: Make sure our clock rate is within limits
The HDMI controller cannot go above a certain pixel rate limit depending on
the generations, but that limit is only enforced in mode_valid at the
moment, which means that we won't advertise modes that exceed that limit,
but the userspace is still free to try to setup a mode that would.

Implement atomic_check to make sure we check it in that scenario too.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201029122522.1917579-1-maxime@cerno.tech
2020-11-19 14:29:13 +01:00
Gustavo A. R. Silva
36f9ff9e03 lib: Fix fall-through warnings for Clang
In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements instead of
letting the code fall through to the next case, and by replacing a
number of /* fall through */ comments with the new pseudo-keyword
macro fallthrough.

Notice that Clang doesn't recognize /* Fall through */ comments as
implicit fall-through markings.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-11-19 07:23:47 -06:00
Tony Lindgren
baa2a61176 ARM: dts: Configure power domain for omap5 dss
This allows shutting down dss domain when the screen blanks.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-19 15:09:01 +02:00
Tero Kristo
ee9ddfd781 ARM: dts: omap5: add remaining PRM instances
Add remaining PRM instances for the omap5 SoC. Additionally enable the
genpd support for them.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-19 15:09:01 +02:00