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883128 Commits (81dcfdb9a01566fd8cd31adce52fb4e448bfd15d)

Author SHA1 Message Date
Christoph Hellwig 81dcfdb9a0 nbd: fix a block_device refcount leak in nbd_release
[ Upstream commit 2bd645b2d3 ]

bdget_disk needs to be paired with bdput to not leak a reference
on the block device inode.

Fixes: 08ba91ee6e ("nbd: Add the nbd NBD_DISCONNECT_ON_CLOSE config flag.")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:27 +01:00
David Verbeiren c602ad2b52 bpf: Zero-fill re-used per-cpu map element
[ Upstream commit d3bec0138b ]

Zero-fill element values for all other cpus than current, just as
when not using prealloc. This is the only way the bpf program can
ensure known initial values for all cpus ('onallcpus' cannot be
set when coming from the bpf program).

The scenario is: bpf program inserts some elements in a per-cpu
map, then deletes some (or userspace does). When later adding
new elements using bpf_map_update_elem(), the bpf program can
only set the value of the new elements for the current cpu.
When prealloc is enabled, previously deleted elements are re-used.
Without the fix, values for other cpus remain whatever they were
when the re-used entry was previously freed.

A selftest is added to validate correct operation in above
scenario as well as in case of LRU per-cpu map element re-use.

Fixes: 6c90598174 ("bpf: pre-allocate hash map elements")
Signed-off-by: David Verbeiren <david.verbeiren@tessares.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201104112332.15191-1-david.verbeiren@tessares.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:26 +01:00
Chuck Lever dfcb337738 SUNRPC: Fix general protection fault in trace_rpc_xdr_overflow()
[ Upstream commit d321ff589c ]

The TP_fast_assign() section is careful enough not to dereference
xdr->rqst if it's NULL. The TP_STRUCT__entry section is not.

Fixes: 5582863f45 ("SUNRPC: Add XDR overflow trace event")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:26 +01:00
Maor Gottlieb b9e8f9d139 net/mlx5: Fix deletion of duplicate rules
[ Upstream commit 465e7baab6 ]

When a rule is duplicated, the refcount of the rule is increased so only
the second deletion of the rule should cause destruction of the FTE.
Currently, the FTE will be destroyed in the first deletion of rule since
the modify_mask will be 0.
Fix it and call to destroy FTE only if all the rules (FTE's children)
have been removed.

Fixes: 718ce4d601 ("net/mlx5: Consolidate update FTE for all removal changes")
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:26 +01:00
Billy Tsai e74e514c8c pinctrl: aspeed: Fix GPI only function problem.
[ Upstream commit 9b92f5c51e ]

Some gpio pin at aspeed soc is input only and the prefix name of these
pin is "GPI" only.
This patch fine-tune the condition of GPIO check from "GPIO" to "GPI"
and it will fix the usage error of banks D and E in the AST2400/AST2500
and banks T and U in the AST2600.

Fixes: 4d3d0e4272 ("pinctrl: Add core support for Aspeed SoCs")
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20201030055450.29613-1-billy_tsai@aspeedtech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:26 +01:00
Ard Biesheuvel d2e61c5202 bpf: Don't rely on GCC __attribute__((optimize)) to disable GCSE
[ Upstream commit 080b6f4076 ]

Commit 3193c0836 ("bpf: Disable GCC -fgcse optimization for
___bpf_prog_run()") introduced a __no_fgcse macro that expands to a
function scope __attribute__((optimize("-fno-gcse"))), to disable a
GCC specific optimization that was causing trouble on x86 builds, and
was not expected to have any positive effect in the first place.

However, as the GCC manual documents, __attribute__((optimize))
is not for production use, and results in all other optimization
options to be forgotten for the function in question. This can
cause all kinds of trouble, but in one particular reported case,
it causes -fno-asynchronous-unwind-tables to be disregarded,
resulting in .eh_frame info to be emitted for the function.

This reverts commit 3193c0836, and instead, it disables the -fgcse
optimization for the entire source file, but only when building for
X86 using GCC with CONFIG_BPF_JIT_ALWAYS_ON disabled. Note that the
original commit states that CONFIG_RETPOLINE=n triggers the issue,
whereas CONFIG_RETPOLINE=y performs better without the optimization,
so it is kept disabled in both cases.

Fixes: 3193c0836f ("bpf: Disable GCC -fgcse optimization for ___bpf_prog_run()")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/lkml/CAMuHMdUg0WJHEcq6to0-eODpXPOywLot6UD2=GFHpzoj_hCoBQ@mail.gmail.com/
Link: https://lore.kernel.org/bpf/20201028171506.15682-2-ardb@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:26 +01:00
Andrew Jeffery 443ae3655f ARM: 9019/1: kprobes: Avoid fortify_panic() when copying optprobe template
[ Upstream commit 9fa2e7af3d ]

Setting both CONFIG_KPROBES=y and CONFIG_FORTIFY_SOURCE=y on ARM leads
to a panic in memcpy() when injecting a kprobe despite the fixes found
in commit e46daee53b ("ARM: 8806/1: kprobes: Fix false positive with
FORTIFY_SOURCE") and commit 0ac569bf6a ("ARM: 8834/1: Fix: kprobes:
optimized kprobes illegal instruction").

arch/arm/include/asm/kprobes.h effectively declares
the target type of the optprobe_template_entry assembly label as a u32
which leads memcpy()'s __builtin_object_size() call to determine that
the pointed-to object is of size four. However, the symbol is used as a handle
for the optimised probe assembly template that is at least 96 bytes in size.
The symbol's use despite its type blows up the memcpy() in ARM's
arch_prepare_optimized_kprobe() with a false-positive fortify_panic() when it
should instead copy the optimised probe template into place:

```
$ sudo perf probe -a aspeed_g6_pinctrl_probe
[  158.457252] detected buffer overflow in memcpy
[  158.458069] ------------[ cut here ]------------
[  158.458283] kernel BUG at lib/string.c:1153!
[  158.458436] Internal error: Oops - BUG: 0 [#1] SMP ARM
[  158.458768] Modules linked in:
[  158.459043] CPU: 1 PID: 99 Comm: perf Not tainted 5.9.0-rc7-00038-gc53ebf8167e9 #158
[  158.459296] Hardware name: Generic DT based system
[  158.459529] PC is at fortify_panic+0x18/0x20
[  158.459658] LR is at __irq_work_queue_local+0x3c/0x74
[  158.459831] pc : [<8047451c>]    lr : [<8020ecd4>]    psr: 60000013
[  158.460032] sp : be2d1d50  ip : be2d1c58  fp : be2d1d5c
[  158.460174] r10: 00000006  r9 : 00000000  r8 : 00000060
[  158.460348] r7 : 8011e434  r6 : b9e0b800  r5 : 7f000000  r4 : b9fe4f0c
[  158.460557] r3 : 80c04cc8  r2 : 00000000  r1 : be7c03cc  r0 : 00000022
[  158.460801] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[  158.461037] Control: 10c5387d  Table: b9cd806a  DAC: 00000051
[  158.461251] Process perf (pid: 99, stack limit = 0x81c71a69)
[  158.461472] Stack: (0xbe2d1d50 to 0xbe2d2000)
[  158.461757] 1d40:                                     be2d1d84 be2d1d60 8011e724 80474510
[  158.462104] 1d60: b9e0b800 b9fe4f0c 00000000 b9fe4f14 80c8ec80 be235000 be2d1d9c be2d1d88
[  158.462436] 1d80: 801cee44 8011e57c b9fe4f0c 00000000 be2d1dc4 be2d1da0 801d0ad0 801cedec
[  158.462742] 1da0: 00000000 00000000 b9fe4f00 ffffffea 00000000 be235000 be2d1de4 be2d1dc8
[  158.463087] 1dc0: 80204604 801d0738 00000000 00000000 b9fe4004 ffffffea be2d1e94 be2d1de8
[  158.463428] 1de0: 80205434 80204570 00385c00 00000000 00000000 00000000 be2d1e14 be2d1e08
[  158.463880] 1e00: 802ba014 b9fe4f00 b9e718c0 b9fe4f84 b9e71ec8 be2d1e24 00000000 00385c00
[  158.464365] 1e20: 00000000 626f7270 00000065 802b905c be2d1e94 0000002e 00000000 802b9914
[  158.464829] 1e40: be2d1e84 be2d1e50 802b9914 8028ff78 804629d0 b9e71ec0 0000002e b9e71ec0
[  158.465141] 1e60: be2d1ea8 80c04cc8 00000cc0 b9e713c4 00000002 80205834 80205834 0000002e
[  158.465488] 1e80: be235000 be235000 be2d1ea4 be2d1e98 80205854 80204e94 be2d1ecc be2d1ea8
[  158.465806] 1ea0: 801ee4a0 80205840 00000002 80c04cc8 00000000 0000002e 0000002e 00000000
[  158.466110] 1ec0: be2d1f0c be2d1ed0 801ee5c8 801ee428 00000000 be2d0000 006b1fd0 00000051
[  158.466398] 1ee0: 00000000 b9eedf00 0000002e 80204410 006b1fd0 be2d1f60 00000000 00000004
[  158.466763] 1f00: be2d1f24 be2d1f10 8020442c 801ee4c4 80205834 802c613c be2d1f5c be2d1f28
[  158.467102] 1f20: 802c60ac 8020441c be2d1fac be2d1f38 8010c764 802e9888 be2d1f5c b9eedf00
[  158.467447] 1f40: b9eedf00 006b1fd0 0000002e 00000000 be2d1f94 be2d1f60 802c634c 802c5fec
[  158.467812] 1f60: 00000000 00000000 00000000 80c04cc8 006b1fd0 00000003 76f7a610 00000004
[  158.468155] 1f80: 80100284 be2d0000 be2d1fa4 be2d1f98 802c63ec 802c62e8 00000000 be2d1fa8
[  158.468508] 1fa0: 80100080 802c63e0 006b1fd0 00000003 00000003 006b1fd0 0000002e 00000000
[  158.468858] 1fc0: 006b1fd0 00000003 76f7a610 00000004 006b1fb0 0026d348 00000017 7ef2738c
[  158.469202] 1fe0: 76f3431c 7ef272d8 0014ec50 76f34338 60000010 00000003 00000000 00000000
[  158.469461] Backtrace:
[  158.469683] [<80474504>] (fortify_panic) from [<8011e724>] (arch_prepare_optimized_kprobe+0x1b4/0x1f8)
[  158.470021] [<8011e570>] (arch_prepare_optimized_kprobe) from [<801cee44>] (alloc_aggr_kprobe+0x64/0x70)
[  158.470287]  r9:be235000 r8:80c8ec80 r7:b9fe4f14 r6:00000000 r5:b9fe4f0c r4:b9e0b800
[  158.470478] [<801cede0>] (alloc_aggr_kprobe) from [<801d0ad0>] (register_kprobe+0x3a4/0x5a0)
[  158.470685]  r5:00000000 r4:b9fe4f0c
[  158.470790] [<801d072c>] (register_kprobe) from [<80204604>] (__register_trace_kprobe+0xa0/0xa4)
[  158.471001]  r9:be235000 r8:00000000 r7:ffffffea r6:b9fe4f00 r5:00000000 r4:00000000
[  158.471188] [<80204564>] (__register_trace_kprobe) from [<80205434>] (trace_kprobe_create+0x5ac/0x9ac)
[  158.471408]  r7:ffffffea r6:b9fe4004 r5:00000000 r4:00000000
[  158.471553] [<80204e88>] (trace_kprobe_create) from [<80205854>] (create_or_delete_trace_kprobe+0x20/0x3c)
[  158.471766]  r10:be235000 r9:be235000 r8:0000002e r7:80205834 r6:80205834 r5:00000002
[  158.471949]  r4:b9e713c4
[  158.472027] [<80205834>] (create_or_delete_trace_kprobe) from [<801ee4a0>] (trace_run_command+0x84/0x9c)
[  158.472255] [<801ee41c>] (trace_run_command) from [<801ee5c8>] (trace_parse_run_command+0x110/0x1f8)
[  158.472471]  r6:00000000 r5:0000002e r4:0000002e
[  158.472594] [<801ee4b8>] (trace_parse_run_command) from [<8020442c>] (probes_write+0x1c/0x28)
[  158.472800]  r10:00000004 r9:00000000 r8:be2d1f60 r7:006b1fd0 r6:80204410 r5:0000002e
[  158.472968]  r4:b9eedf00
[  158.473046] [<80204410>] (probes_write) from [<802c60ac>] (vfs_write+0xcc/0x1e8)
[  158.473226] [<802c5fe0>] (vfs_write) from [<802c634c>] (ksys_write+0x70/0xf8)
[  158.473400]  r8:00000000 r7:0000002e r6:006b1fd0 r5:b9eedf00 r4:b9eedf00
[  158.473567] [<802c62dc>] (ksys_write) from [<802c63ec>] (sys_write+0x18/0x1c)
[  158.473745]  r9:be2d0000 r8:80100284 r7:00000004 r6:76f7a610 r5:00000003 r4:006b1fd0
[  158.473932] [<802c63d4>] (sys_write) from [<80100080>] (ret_fast_syscall+0x0/0x54)
[  158.474126] Exception stack(0xbe2d1fa8 to 0xbe2d1ff0)
[  158.474305] 1fa0:                   006b1fd0 00000003 00000003 006b1fd0 0000002e 00000000
[  158.474573] 1fc0: 006b1fd0 00000003 76f7a610 00000004 006b1fb0 0026d348 00000017 7ef2738c
[  158.474811] 1fe0: 76f3431c 7ef272d8 0014ec50 76f34338
[  158.475171] Code: e24cb004 e1a01000 e59f0004 ebf40dd3 (e7f001f2)
[  158.475847] ---[ end trace 55a5b31c08a29f00 ]---
[  158.476088] Kernel panic - not syncing: Fatal exception
[  158.476375] CPU0: stopping
[  158.476709] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G      D           5.9.0-rc7-00038-gc53ebf8167e9 #158
[  158.477176] Hardware name: Generic DT based system
[  158.477411] Backtrace:
[  158.477604] [<8010dd28>] (dump_backtrace) from [<8010dfd4>] (show_stack+0x20/0x24)
[  158.477990]  r7:00000000 r6:60000193 r5:00000000 r4:80c2f634
[  158.478323] [<8010dfb4>] (show_stack) from [<8046390c>] (dump_stack+0xcc/0xe8)
[  158.478686] [<80463840>] (dump_stack) from [<80110750>] (handle_IPI+0x334/0x3a0)
[  158.479063]  r7:00000000 r6:00000004 r5:80b65cc8 r4:80c78278
[  158.479352] [<8011041c>] (handle_IPI) from [<801013f8>] (gic_handle_irq+0x88/0x94)
[  158.479757]  r10:10c5387d r9:80c01ed8 r8:00000000 r7:c0802000 r6:80c0537c r5:000003ff
[  158.480146]  r4:c080200c r3:fffffff4
[  158.480364] [<80101370>] (gic_handle_irq) from [<80100b6c>] (__irq_svc+0x6c/0x90)
[  158.480748] Exception stack(0x80c01ed8 to 0x80c01f20)
[  158.481031] 1ec0:                                                       000128bc 00000000
[  158.481499] 1ee0: be7b8174 8011d3a0 80c00000 00000000 80c04cec 80c04d28 80c5d7c2 80a026d4
[  158.482091] 1f00: 10c5387d 80c01f34 80c01f38 80c01f28 80109554 80109558 60000013 ffffffff
[  158.482621]  r9:80c00000 r8:80c5d7c2 r7:80c01f0c r6:ffffffff r5:60000013 r4:80109558
[  158.482983] [<80109518>] (arch_cpu_idle) from [<80818780>] (default_idle_call+0x38/0x120)
[  158.483360] [<80818748>] (default_idle_call) from [<801585a8>] (do_idle+0xd4/0x158)
[  158.483945]  r5:00000000 r4:80c00000
[  158.484237] [<801584d4>] (do_idle) from [<801588f4>] (cpu_startup_entry+0x28/0x2c)
[  158.484784]  r9:80c78000 r8:00000000 r7:80c78000 r6:80c78040 r5:80c04cc0 r4:000000d6
[  158.485328] [<801588cc>] (cpu_startup_entry) from [<80810a78>] (rest_init+0x9c/0xbc)
[  158.485930] [<808109dc>] (rest_init) from [<80b00ae4>] (arch_call_rest_init+0x18/0x1c)
[  158.486503]  r5:80c04cc0 r4:00000001
[  158.486857] [<80b00acc>] (arch_call_rest_init) from [<80b00fcc>] (start_kernel+0x46c/0x548)
[  158.487589] [<80b00b60>] (start_kernel) from [<00000000>] (0x0)
```

Fixes: e46daee53b ("ARM: 8806/1: kprobes: Fix false positive with FORTIFY_SOURCE")
Fixes: 0ac569bf6a ("ARM: 8834/1: Fix: kprobes: optimized kprobes illegal instruction")
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Tested-by: Luka Oreskovic <luka.oreskovic@sartura.hr>
Tested-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Luka Oreskovic <luka.oreskovic@sartura.hr>
Cc: Juraj Vijtiuk <juraj.vijtiuk@sartura.hr>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:26 +01:00
Andy Shevchenko c0be7a34c8 pinctrl: intel: Set default bias in case no particular value given
[ Upstream commit f3c75e7a93 ]

When GPIO library asks pin control to set the bias, it doesn't pass
any value of it and argument is considered boolean (and this is true
for ACPI GpioIo() / GpioInt() resources, by the way). Thus, individual
drivers must behave well, when they got the resistance value of 1 Ohm,
i.e. transforming it to sane default.

In case of Intel pin control hardware the 5 kOhm sounds plausible
because on one hand it's a minimum of resistors present in all
hardware generations and at the same time it's high enough to minimize
leakage current (will be only 200 uA with the above choice).

Fixes: e57725eabf ("pinctrl: intel: Add support for hardware debouncer")
Reported-by: Jamie McClymont <jamie@kwiius.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:26 +01:00
Baolin Wang 88ccabbd20 mfd: sprd: Add wakeup capability for PMIC IRQ
commit a75bfc824a upstream.

When changing to use suspend-to-idle to save power, the PMIC irq can not
wakeup the system due to lack of wakeup capability, which will cause
the sub-irqs (such as power key) of the PMIC can not wake up the system.
Thus we can add the wakeup capability for PMIC irq to solve this issue,
as well as removing the IRQF_NO_SUSPEND flag to allow PMIC irq to be
a wakeup source.

Reported-by: Chunyan Zhang <zhang.lyra@gmail.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Tested-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 19:20:26 +01:00
Chunyan Zhang 58953e8734 tick/common: Touch watchdog in tick_unfreeze() on all CPUs
commit 5167c506d6 upstream.

Suspend to IDLE invokes tick_unfreeze() on resume. tick_unfreeze() on the
first resuming CPU resumes timekeeping, which also has the side effect of
resetting the softlockup watchdog on this CPU.

But on the secondary CPUs the watchdog is not reset in the resume /
unfreeze() path, which can result in false softlockup warnings on those
CPUs depending on the time spent in suspend.

Prevent this by clearing the softlock watchdog in the unfreeze path also
on the secondary resuming CPUs.

[ tglx: Massaged changelog ]

Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20200110083902.27276-1-chunyan.zhang@unisoc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 19:20:26 +01:00
Martin Hundebøll 3322f7289e spi: bcm2835: remove use of uninitialized gpio flags variable
commit bc7f2cd755 upstream.

Removing the duplicate gpio chip select level handling in
bcm2835_spi_setup() left the lflags variable uninitialized. Avoid trhe
use of such variable by passing default flags to
gpiochip_request_own_desc().

Fixes: 5e31ba0c05 ("spi: bcm2835: fix gpio cs level inversion")
Signed-off-by: Martin Hundebøll <martin@geanix.com>
Link: https://lore.kernel.org/r/20201105090615.620315-1-martin@geanix.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 19:20:25 +01:00
Jerry Snitselaar 572e545d80 tpm_tis: Disable interrupts on ThinkPad T490s
[ Upstream commit b154ce11ea ]

There is a misconfiguration in the bios of the gpio pin used for the
interrupt in the T490s. When interrupts are enabled in the tpm_tis
driver code this results in an interrupt storm. This was initially
reported when we attempted to enable the interrupt code in the tpm_tis
driver, which previously wasn't setting a flag to enable it. Due to
the reports of the interrupt storm that code was reverted and we went back
to polling instead of using interrupts. Now that we know the T490s problem
is a firmware issue, add code to check if the system is a T490s and
disable interrupts if that is the case. This will allow us to enable
interrupts for everyone else. If the user has a fixed bios they can
force the enabling of interrupts with tpm_tis.interrupts=1 on the
kernel command line.

Cc: Peter Huewe <peterhuewe@gmx.de>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:25 +01:00
Ulrich Hecht 713a3a94be i2c: sh_mobile: implement atomic transfers
[ Upstream commit a49cc1fe9d ]

Implements atomic transfers to fix reboot/shutdown on r8a7790 Lager and
similar boards.

Signed-off-by: Ulrich Hecht <uli+renesas@fpond.eu>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
[wsa: some whitespace fixing]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:25 +01:00
Sean Anderson 37a048d790 riscv: Set text_offset correctly for M-Mode
[ Upstream commit 79605f1394 ]

M-Mode Linux is loaded at the start of RAM, not 2MB later. Perhaps this
should be calculated based on PAGE_OFFSET somehow? Even better would be to
deprecate text_offset and instead introduce something absolute.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:25 +01:00
Tommi Rantala 6d8b433769 selftests: proc: fix warning: _GNU_SOURCE redefined
[ Upstream commit f3ae6c6e8a ]

Makefile already contains -D_GNU_SOURCE, so we can remove it from the
*.c files.

Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:25 +01:00
Veerabadhran Gopalakrishnan ab10b7def4 amd/amdgpu: Disable VCN DPG mode for Picasso
[ Upstream commit c6d2b0fbb8 ]

Concurrent operation of VCN and JPEG decoder in DPG mode is
causing ring timeout due to power state.

Signed-off-by: Veerabadhran Gopalakrishnan <veerabadhran.gopalakrishnan@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:25 +01:00
Qii Wang 4faa1fabc6 i2c: mediatek: move dma reset before i2c reset
[ Upstream commit aafced673c ]

The i2c driver default do dma reset after i2c reset, but sometimes
i2c reset will trigger dma tx2rx, then apdma write data to dram
which has been i2c_put_dma_safe_msg_buf(kfree). Move dma reset
before i2c reset in mtk_i2c_init_hw to fix it.

Signed-off-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:25 +01:00
Fred Gao b66c7cdedd vfio/pci: Bypass IGD init in case of -ENODEV
[ Upstream commit e4eccb8536 ]

Bypass the IGD initialization when -ENODEV returns,
that should be the case if opregion is not available for IGD
or within discrete graphics device's option ROM,
or host/lpc bridge is not found.

Then use of -ENODEV here means no special device resources found
which needs special care for VFIO, but we still allow other normal
device resource access.

Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Xiong Zhang <xiong.y.zhang@intel.com>
Cc: Hang Yuan <hang.yuan@linux.intel.com>
Cc: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Fred Gao <fred.gao@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:25 +01:00
Zhang Qilong c6be53caf1 vfio: platform: fix reference leak in vfio_platform_open
[ Upstream commit bb742ad019 ]

pm_runtime_get_sync() will increment pm usage counter even it
failed. Forgetting to call pm_runtime_put will result in
reference leak in vfio_platform_open, so we should fix it.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Acked-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:24 +01:00
Qian Cai 4d6f536e34 s390/smp: move rcu_cpu_starting() earlier
[ Upstream commit de5d9dae15 ]

The call to rcu_cpu_starting() in smp_init_secondary() is not early
enough in the CPU-hotplug onlining process, which results in lockdep
splats as follows:

 WARNING: suspicious RCU usage
 -----------------------------
 kernel/locking/lockdep.c:3497 RCU-list traversed in non-reader section!!

 other info that might help us debug this:

 RCU used illegally from offline CPU!
 rcu_scheduler_active = 1, debug_locks = 1
 no locks held by swapper/1/0.

 Call Trace:
 show_stack+0x158/0x1f0
 dump_stack+0x1f2/0x238
 __lock_acquire+0x2640/0x4dd0
 lock_acquire+0x3a8/0xd08
 _raw_spin_lock_irqsave+0xc0/0xf0
 clockevents_register_device+0xa8/0x528
 init_cpu_timer+0x33e/0x468
 smp_init_secondary+0x11a/0x328
 smp_start_secondary+0x82/0x88

This is avoided by moving the call to rcu_cpu_starting up near the
beginning of the smp_init_secondary() function. Note that the
raw_smp_processor_id() is required in order to avoid calling into
lockdep before RCU has declared the CPU to be watched for readers.

Link: https://lore.kernel.org/lkml/160223032121.7002.1269740091547117869.tip-bot2@tip-bot2/
Signed-off-by: Qian Cai <cai@redhat.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:24 +01:00
Suravee Suthikulpanit 984d775074 iommu/amd: Increase interrupt remapping table limit to 512 entries
[ Upstream commit 73db2fc595 ]

Certain device drivers allocate IO queues on a per-cpu basis.
On AMD EPYC platform, which can support up-to 256 cpu threads,
this can exceed the current MAX_IRQ_PER_TABLE limit of 256,
and result in the error message:

    AMD-Vi: Failed to allocate IRTE

This has been observed with certain NVME devices.

AMD IOMMU hardware can actually support upto 512 interrupt
remapping table entries. Therefore, update the driver to
match the hardware limit.

Please note that this also increases the size of interrupt remapping
table to 8KB per device when using the 128-bit IRTE format.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20201015025002.87997-1-suravee.suthikulpanit@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:24 +01:00
Sagi Grimberg a889cd3d35 nvme-tcp: avoid repeated request completion
[ Upstream commit 0a8a2c85b8 ]

The request may be executed asynchronously, and rq->state may be
changed to IDLE. To avoid repeated request completion, only
MQ_RQ_COMPLETE of rq->state is checked in nvme_tcp_complete_timed_out.
It is not safe, so need adding check IDLE for rq->state.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Chao Leng <lengchao@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:24 +01:00
Sagi Grimberg 9d14f5225d nvme-rdma: avoid repeated request completion
[ Upstream commit fdf58e02ad ]

The request may be executed asynchronously, and rq->state may be
changed to IDLE. To avoid repeated request completion, only
MQ_RQ_COMPLETE of rq->state is checked in nvme_rdma_complete_timed_out.
It is not safe, so need adding check IDLE for rq->state.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Chao Leng <lengchao@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:24 +01:00
Chao Leng 531b55cce9 nvme-tcp: avoid race between time out and tear down
[ Upstream commit d6f66210f4 ]

Now use teardown_lock to serialize for time out and tear down. This may
cause abnormal: first cancel all request in tear down, then time out may
complete the request again, but the request may already be freed or
restarted.

To avoid race between time out and tear down, in tear down process,
first we quiesce the queue, and then delete the timer and cancel
the time out work for the queue. At the same time we need to delete
teardown_lock.

Signed-off-by: Chao Leng <lengchao@huawei.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:24 +01:00
Chao Leng d0e888a20d nvme-rdma: avoid race between time out and tear down
[ Upstream commit 3017013dcc ]

Now use teardown_lock to serialize for time out and tear down. This may
cause abnormal: first cancel all request in tear down, then time out may
complete the request again, but the request may already be freed or
restarted.

To avoid race between time out and tear down, in tear down process,
first we quiesce the queue, and then delete the timer and cancel
the time out work for the queue. At the same time we need to delete
teardown_lock.

Signed-off-by: Chao Leng <lengchao@huawei.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:24 +01:00
Chao Leng 0ca279c859 nvme: introduce nvme_sync_io_queues
[ Upstream commit 04800fbff4 ]

Introduce sync io queues for some scenarios which just only need sync
io queues not sync all queues.

Signed-off-by: Chao Leng <lengchao@huawei.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:24 +01:00
Sreekanth Reddy c473b3e56c scsi: mpt3sas: Fix timeouts observed while reenabling IRQ
[ Upstream commit 5feed64f91 ]

While reenabling the IRQ after irq poll there may be small time window
where HBA firmware has posted some replies and raise the interrupts but
driver has not received the interrupts. So we may observe I/O timeouts as
the driver has not processed the replies as interrupts got missed while
reenabling the IRQ.

To fix this issue the driver has to go for one more round of processing the
reply descriptors from reply descriptor post queue after enabling the IRQ.

Link: https://lore.kernel.org/r/20201102072746.27410-1-sreekanth.reddy@broadcom.com
Reported-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:23 +01:00
Hannes Reinecke b61e157d9f scsi: scsi_dh_alua: Avoid crash during alua_bus_detach()
[ Upstream commit 5faf50e9e9 ]

alua_bus_detach() might be running concurrently with alua_rtpg_work(), so
we might trip over h->sdev == NULL and call BUG_ON().  The correct way of
handling it is to not set h->sdev to NULL in alua_bus_detach(), and call
rcu_synchronize() before the final delete to ensure that all concurrent
threads have left the critical section.  Then we can get rid of the
BUG_ON() and replace it with a simple if condition.

Link: https://lore.kernel.org/r/1600167537-12509-1-git-send-email-jitendra.khasdev@oracle.com
Link: https://lore.kernel.org/r/20200924104559.26753-1-hare@suse.de
Cc: Brian Bunker <brian@purestorage.com>
Acked-by: Brian Bunker <brian@purestorage.com>
Tested-by: Jitendra Khasdev <jitendra.khasdev@oracle.com>
Reviewed-by: Jitendra Khasdev <jitendra.khasdev@oracle.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:23 +01:00
Qiujun Huang bf1cedc12f tracing: Fix the checking of stackidx in __ftrace_trace_stack
[ Upstream commit 906695e593 ]

The array size is FTRACE_KSTACK_NESTING, so the index FTRACE_KSTACK_NESTING
is illegal too. And fix two typos by the way.

Link: https://lkml.kernel.org/r/20201031085714.2147-1-hqjagain@gmail.com

Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:23 +01:00
Ye Bin e57c046970 cfg80211: regulatory: Fix inconsistent format argument
[ Upstream commit db18d20d1c ]

Fix follow warning:
[net/wireless/reg.c:3619]: (warning) %d in format string (no. 2)
requires 'int' but the argument type is 'unsigned int'.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20201009070215.63695-1-yebin10@huawei.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:23 +01:00
Johannes Berg a3f0db0d23 cfg80211: initialize wdev data earlier
[ Upstream commit 9bdaf3b91e ]

There's a race condition in the netdev registration in that
NETDEV_REGISTER actually happens after the netdev is available,
and so if we initialize things only there, we might get called
with an uninitialized wdev through nl80211 - not using a wdev
but using a netdev interface index.

I found this while looking into a syzbot report, but it doesn't
really seem to be related, and unfortunately there's no repro
for it (yet). I can't (yet) explain how it managed to get into
cfg80211_release_pmsr() from nl80211_netlink_notify() without
the wdev having been initialized, as the latter only iterates
the wdevs that are linked into the rdev, which even without the
change here happened after init.

However, looking at this, it seems fairly clear that the init
needs to be done earlier, otherwise we might even re-init on a
netns move, when data might still be pending.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20201009135821.fdcbba3aad65.Ie9201d91dbcb7da32318812effdc1561aeaf4cdc@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:23 +01:00
Johannes Berg 67bb2e4d41 mac80211: fix use of skb payload instead of header
[ Upstream commit 14f46c1e51 ]

When ieee80211_skb_resize() is called from ieee80211_build_hdr()
the skb has no 802.11 header yet, in fact it consist only of the
payload as the ethernet frame is removed. As such, we're using
the payload data for ieee80211_is_mgmt(), which is of course
completely wrong. This didn't really hurt us because these are
always data frames, so we could only have added more tailroom
than we needed if we determined it was a management frame and
sdata->crypto_tx_tailroom_needed_cnt was false.

However, syzbot found that of course there need not be any payload,
so we're using at best uninitialized memory for the check.

Fix this to pass explicitly the kind of frame that we have instead
of checking there, by replacing the "bool may_encrypt" argument
with an argument that can carry the three possible states - it's
not going to be encrypted, it's a management frame, or it's a data
frame (and then we check sdata->crypto_tx_tailroom_needed_cnt).

Reported-by: syzbot+32fd1a1bfe355e93f1e2@syzkaller.appspotmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20201009132538.e1fd7f802947.I799b288466ea2815f9d4c84349fae697dca2f189@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:23 +01:00
Evan Quan c1cbb64c10 drm/amd/pm: do not use ixFEATURE_STATUS for checking smc running
[ Upstream commit 786436b453 ]

This reverts commit f878122841 ("drm/amdgpu:
Fix bug where DPM is not enabled after hibernate and resume").
It was intended to fix Hawaii S4(hibernation) issue but break S3. As
ixFEATURE_STATUS is filled with garbage data on resume which can be
only cleared by reloading smc firmware(but that will involve many
changes). So, we will revert this S4 fix and seek a new way.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Tested-by: Sandeep Raghuraman <sandy.8925@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:23 +01:00
Evan Quan 48083640a4 drm/amd/pm: perform SMC reset on suspend/hibernation
[ Upstream commit 277b080f98 ]

So that the succeeding resume can be performed based on
a clean state.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Tested-by: Sandeep Raghuraman <sandy.8925@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:23 +01:00
Evan Quan f449b902ba drm/amdgpu: perform srbm soft reset always on SDMA resume
[ Upstream commit 253475c455 ]

This can address the random SDMA hang after pci config reset
seen on Hawaii.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Tested-by: Sandeep Raghuraman <sandy.8925@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:22 +01:00
Keita Suzuki 7f6df0b085 scsi: hpsa: Fix memory leak in hpsa_init_one()
[ Upstream commit af61bc1e33 ]

When hpsa_scsi_add_host() fails, h->lastlogicals is leaked since it is
missing a free() in the error handler.

Fix this by adding free() when hpsa_scsi_add_host() fails.

Link: https://lore.kernel.org/r/20201027073125.14229-1-keitasuzuki.park@sslab.ics.keio.ac.jp
Tested-by: Don Brace <don.brace@microchip.com>
Acked-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Keita Suzuki <keitasuzuki.park@sslab.ics.keio.ac.jp>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:22 +01:00
Bob Peterson 325455358e gfs2: check for live vs. read-only file system in gfs2_fitrim
[ Upstream commit c5c6872469 ]

Before this patch, gfs2_fitrim was not properly checking for a "live" file
system. If the file system had something to trim and the file system
was read-only (or spectator) it would start the trim, but when it starts
the transaction, gfs2_trans_begin returns -EROFS (read-only file system)
and it errors out. However, if the file system was already trimmed so
there's no work to do, it never called gfs2_trans_begin. That code is
bypassed so it never returns the error. Instead, it returns a good
return code with 0 work. All this makes for inconsistent behavior:
The same fstrim command can return -EROFS in one case and 0 in another.
This tripped up xfstests generic/537 which reports the error as:

    +fstrim with unrecovered metadata just ate your filesystem

This patch adds a check for a "live" (iow, active journal, iow, RW)
file system, and if not, returns the error properly.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:22 +01:00
Bob Peterson edeff05a1f gfs2: Add missing truncate_inode_pages_final for sd_aspace
[ Upstream commit a9dd945cce ]

Gfs2 creates an address space for its rgrps called sd_aspace, but it never
called truncate_inode_pages_final on it. This confused vfs greatly which
tried to reference the address space after gfs2 had freed the superblock
that contained it.

This patch adds a call to truncate_inode_pages_final for sd_aspace, thus
avoiding the use-after-free.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:22 +01:00
Bob Peterson 99dcfc517d gfs2: Free rd_bits later in gfs2_clear_rgrpd to fix use-after-free
[ Upstream commit d0f17d3883 ]

Function gfs2_clear_rgrpd calls kfree(rgd->rd_bits) before calling
return_all_reservations, but return_all_reservations still dereferences
rgd->rd_bits in __rs_deltree.  Fix that by moving the call to kfree below the
call to return_all_reservations.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:22 +01:00
Kai-Heng Feng 42eaa22aaf ALSA: hda: Reinstate runtime_allow() for all hda controllers
[ Upstream commit 9fc149c3bc ]

The broken jack detection should be fixed by commit a6e7d0a4bd ("ALSA:
hda: fix jack detection with Realtek codecs when in D3"), let's try
enabling runtime PM by default again.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20201027130038.16463-4-kai.heng.feng@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:22 +01:00
Kai-Heng Feng 0a4c091673 ALSA: hda: Separate runtime and system suspend
[ Upstream commit f5dac54d9d ]

Both pm_runtime_force_suspend() and pm_runtime_force_resume() have
some implicit checks, so it can make code flow more straightforward if
we separate runtime and system suspend callbacks.

High Definition Audio Specification, 4.5.9.3 Codec Wake From System S3
states that codec can wake the system up from S3 if WAKEEN is toggled.
Since HDA controller has different wakeup settings for runtime and
system susend, we also need to explicitly disable direct-complete which
can be enabled automatically by PCI core. In addition to that, avoid
waking up codec if runtime resume is for system suspend, to not break
direct-complete for codecs.

While at it, also remove AZX_DCAPS_SUSPEND_SPURIOUS_WAKEUP, as the
original bug commit a6630529ae ("ALSA: hda: Workaround for spurious
wakeups on some Intel platforms") solves doesn't happen with this
patch.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20201027130038.16463-3-kai.heng.feng@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:22 +01:00
Tommi Rantala 9b7e6b670d selftests: pidfd: fix compilation errors due to wait.h
[ Upstream commit 1948172fdb ]

Drop unneeded <linux/wait.h> header inclusion to fix pidfd compilation
errors seen in Fedora 32:

In file included from pidfd_open_test.c:9:
../../../../usr/include/linux/wait.h:17:16: error: expected identifier before numeric constant
   17 | #define P_ALL  0
      |                ^

Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:22 +01:00
Colin Ian King 9110e2f263 selftests/ftrace: check for do_sys_openat2 in user-memory test
[ Upstream commit e3e4031256 ]

More recent libc implementations are now using openat/openat2 system
calls so also add do_sys_openat2 to the tracing so that the test
passes on these systems because do_sys_open may not be called.

Thanks to Masami Hiramatsu for the help on getting this fix to work
correctly.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:22 +01:00
Evgeny Novikov 1737ea0c57 usb: gadget: goku_udc: fix potential crashes in probe
[ Upstream commit 0d66e04875 ]

goku_probe() goes to error label "err" and invokes goku_remove()
in case of failures of pci_enable_device(), pci_resource_start()
and ioremap(). goku_remove() gets a device from
pci_get_drvdata(pdev) and works with it without any checks, in
particular it dereferences a corresponding pointer. But
goku_probe() did not set this device yet. So, one can expect
various crashes. The patch moves setting the device just after
allocation of memory for it.

Found by Linux Driver Verification project (linuxtesting.org).

Reported-by: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:21 +01:00
Viresh Kumar e604903541 opp: Reduce the size of critical section in _opp_table_kref_release()
[ Upstream commit e0df59de67 ]

There is a lot of stuff here which can be done outside of the big
opp_table_lock, do that. This helps avoiding few circular dependency
lockdeps around debugfs and interconnects.

Reported-by: Rob Clark <robdclark@gmail.com>
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:21 +01:00
Heikki Krogerus fe2dc1093c usb: dwc3: pci: add support for the Intel Alder Lake-S
[ Upstream commit 1384ab4fee ]

This patch adds the necessary PCI ID for Intel Alder Lake-S
devices.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:21 +01:00
Olivier Moysan e22142a9a2 ASoC: cs42l51: manage mclk shutdown delay
[ Upstream commit 20afe581c9 ]

A delay must be introduced before the shutdown down of the mclk,
as stated in CS42L51 datasheet. Otherwise the codec may
produce some noise after the end of DAPM power down sequence.
The delay between DAC and CLOCK_SUPPLY widgets is too short.
Add a delay in mclk shutdown request to manage the shutdown delay
explicitly. From experiments, at least 10ms delay is necessary.
Set delay to 20ms as recommended in Documentation/timers/timers-howto.rst
when using msleep().

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Link: https://lore.kernel.org/r/20201020150109.482-1-olivier.moysan@st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:21 +01:00
Srinivas Kandagatla 0fc0befe0b ASoC: qcom: sdm845: set driver name correctly
[ Upstream commit 3f48b6eba1 ]

With the current state of code, we would endup with something like
below in /proc/asound/cards for 2 machines based on this driver.

Machine 1:
 0 [DB845c            ]: DB845c - DB845c
                       DB845c
Machine 2:
 0 [LenovoYOGAC6301]: Lenovo-YOGA-C63 - Lenovo-YOGA-C630-13Q50
                     LENOVO-81JL-LenovoYOGAC630_13Q50-LNVNB161216

This is not very UCM friendly both w.r.t to common up configs and
card identification, and UCM2 became totally not usefull with just
one ucm sdm845.conf for two machines which have different setups
w.r.t HDMI and other dais.

Reasons for such thing is partly because Qualcomm machine drivers never
cared to set driver_name.

This patch sets up driver name for the this driver to sort out the
UCM integration issues!

after this patch contents of /proc/asound/cards:

Machine 1:
 0 [DB845c         ]: sdm845 - DB845c
                      DB845c
Machine 2:
 0 [LenovoYOGAC6301]: sdm845 - Lenovo-YOGA-C630-13Q50
                     LENOVO-81JL-LenovoYOGAC630_13Q50-LNVNB161216

with this its possible to align with what UCM2 expects and we can have
sdm845/DB845.conf
sdm845/LENOVO-81JL-LenovoYOGAC630_13Q50-LNVNB161216.conf
... for board variants. This should scale much better!

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20201023095849.22894-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:21 +01:00
Masashi Honma b668352c4a ath9k_htc: Use appropriate rs_datalen type
commit 5024f21c15 upstream.

kernel test robot says:
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:987:20: sparse: warning: incorrect type in assignment (different base types)
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:987:20: sparse:    expected restricted __be16 [usertype] rs_datalen
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:987:20: sparse:    got unsigned short [usertype]
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:988:13: sparse: warning: restricted __be16 degrades to integer
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:1001:13: sparse: warning: restricted __be16 degrades to integer

Indeed rs_datalen has host byte order, so modify it's own type.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: cd486e627e ("ath9k_htc: Discard undersized packets")
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200808233258.4596-1-masashi.honma@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 19:20:21 +01:00
Maxim Levitsky 4250160436 KVM: x86: don't expose MSR_IA32_UMWAIT_CONTROL unconditionally
[ Upstream commit f4cfcd2d5a ]

This msr is only available when the host supports WAITPKG feature.

This breaks a nested guest, if the L1 hypervisor is set to ignore
unknown msrs, because the only other safety check that the
kernel does is that it attempts to read the msr and
rejects it if it gets an exception.

Cc: stable@vger.kernel.org
Fixes: 6e3ba4abce ("KVM: vmx: Emulate MSR IA32_UMWAIT_CONTROL")
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200523161455.3940-3-mlevitsk@redhat.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit f4cfcd2d5a
use boot_cpu_has for checking the feature)
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 19:20:21 +01:00