Commit Graph

1136937 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
88c8e05ed5 Revert "usb: gadget: uvc: limit isoc_sg to super speed gadgets"
This reverts commit 19905240ae.

It was a new feature, and it doesn't even work properly yet, so revert
it from this branch as it is not needed for 6.1-final.

Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Cc: stable <stable@kernel.org>
Fixes: 19905240ae ("usb: gadget: uvc: limit isoc_sg to super speed gadgets")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 14:09:06 +02:00
Hans de Goede
fa153b7cdd ACPI: scan: Add LATT2021 to acpi_ignore_dep_ids[]
Some x86/ACPI laptops with MIPI cameras have a LATT2021 ACPI device
in the _DEP dependency list of the ACPI devices for the camera-sensors
(which have flags.honor_deps set).

The _DDN for the LATT2021 device is "Lattice FW Update Client Driver",
suggesting that this is used for firmware updates of something. There
is no Linux driver for this and if Linux gets support for updates it
will likely be in userspace through fwupd.

For now add the LATT2021 HID to acpi_ignore_dep_ids[] so that
acpi_dev_ready_for_enumeration() will return true once the other _DEP
dependencies are met.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-10-26 13:44:13 +02:00
Tamim Khan
b5f9223a10 ACPI: resource: Skip IRQ override on Asus Vivobook S5602ZA
Like the Asus Vivobook K3402ZA/K3502ZA/S5402ZA Asus Vivobook S5602ZA
has an ACPI DSDT table the describes IRQ 1 as ActiveLow while the kernel
overrides it to Edge_High. This prevents the keyboard on this laptop
from working. To fix this add this laptop to the skip_override_table so
that the kernel does not override IRQ 1.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216579
Tested-by: Dzmitry <wrkedm@gmail.com>
Signed-off-by: Tamim Khan <tamim@fusetak.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-10-26 13:41:11 +02:00
Manank Patel
8338b74a75 ACPI: PCC: Fix unintentional integer overflow
Fix an unintentional u32 overflow by changing PCC_CMD_WAIT_RETRIES_NUM
to 500ULL.

Fixes: 91cefefb69 ("ACPI: PCC: replace wait_for_completion()")
Signed-off-by: Manank Patel <pmanank200502@gmail.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-10-26 13:33:31 +02:00
Sudeep Holla
e0c57a5c70 PM: domains: Fix handling of unavailable/disabled idle states
Platforms can provide the information about the availability of each
idle states via status flag. Platforms may have to disable one or more
idle states for various reasons like broken firmware or other unmet
dependencies.

Fix handling of such unavailable/disabled idle states by ignoring them
while parsing the states.

Fixes: a3381e3a65 ("PM / domains: Fix up domain-idle-states OF parsing")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-10-26 13:28:39 +02:00
Brian Norris
8d280b1df8 mmc: sdhci_am654: 'select', not 'depends' REGMAP_MMIO
REGMAP_MMIO is not user-configurable, so we can only satisfy this
dependency by enabling some other Kconfig symbol that properly 'select's
it. Use select like everybody else.

Noticed when trying to enable this driver for compile testing.

Fixes: 59592cc1f5 ("mmc: sdhci_am654: Add dependency on MMC_SDHCI_AM654")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221024180300.2292208-1-briannorris@chromium.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-10-26 11:48:03 +02:00
Palmer Dabbelt
389ec68c83
MAINTAINERS: git://github.com -> https://github.com for sifive
Github deprecated the git:// links about a year ago, so let's move to
the https:// URLs instead.

Reported-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://github.blog/2021-09-01-improving-git-protocol-security-github/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-10-25 23:52:11 -07:00
Jisheng Zhang
89fd4a1df8
riscv: jump_label: mark arguments as const to satisfy asm constraints
Samuel reported that the static branch usage in cpu_relax() breaks
building with CONFIG_CC_OPTIMIZE_FOR_SIZE:

In file included from <command-line>:
./arch/riscv/include/asm/jump_label.h: In function 'cpu_relax':
././include/linux/compiler_types.h:285:33: warning: 'asm' operand 0
probably does not match constraints
  285 | #define asm_volatile_goto(x...) asm goto(x)
      |                                 ^~~
./arch/riscv/include/asm/jump_label.h:41:9: note: in expansion of macro
'asm_volatile_goto'
   41 |         asm_volatile_goto(
      |         ^~~~~~~~~~~~~~~~~
././include/linux/compiler_types.h:285:33: error: impossible constraint
in 'asm'
  285 | #define asm_volatile_goto(x...) asm goto(x)
      |                                 ^~~
./arch/riscv/include/asm/jump_label.h:41:9: note: in expansion of macro
'asm_volatile_goto'
   41 |         asm_volatile_goto(
      |         ^~~~~~~~~~~~~~~~~
make[1]: *** [scripts/Makefile.build:249:
arch/riscv/kernel/vdso/vgettimeofday.o] Error 1
make: *** [arch/riscv/Makefile:128: vdso_prepare] Error 2

Maybe "-Os" prevents GCC from detecting that the key/branch arguments
can be treated as constants and used as immediate operands. Inspired
by x86's commit 864b435514b2("x86/jump_label: Mark arguments as const to
satisfy asm constraints"), and as pointed out by Steven: "The "i"
constraint needs to be a constant.", let's do similar modifications to
riscv.

Tested by CC_OPTIMIZE_FOR_SIZE + gcc and CC_OPTIMIZE_FOR_SIZE + clang.

Link: https://lore.kernel.org/linux-riscv/20220922060958.44203-1-samuel@sholland.org/
Link: https://lore.kernel.org/all/20210212094059.5f8d05e8@gandalf.local.home/
Fixes: 8eb060e101 ("arch/riscv: add Zihintpause support")
Reported-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20221008145437.491-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-10-25 23:09:45 -07:00
Caleb Connolly
95a0396a06 net: ipa: don't configure IDLE_INDICATION on v3.1
IPA v3.1 doesn't support the IDLE_INDICATION_CFG register, this was
causing a harmless splat in ipa_idle_indication_cfg(), add a version
check to prevent trying to fetch this register on v3.1

Fixes: 6a244b75cf ("net: ipa: introduce ipa_reg()")
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Tested-by: Jami Kettunen <jami.kettunen@somainline.org>
Link: https://lore.kernel.org/r/20221024234850.4049778-1-caleb.connolly@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-25 19:49:13 -07:00
Caleb Connolly
05a31b94af net: ipa: fix v3.1 resource limit masks
The resource group limits for IPA v3.1 mistakenly used 6 bit wide mask
values, when the hardware actually uses 8. Out of range values were
silently ignored before, so the IPA worked as expected. However the
new generalised register definitions introduce stricter checking here,
they now cause some splats and result in the value 0 being written
instead. Fix the limit bitmask widths so that the correct values can be
written.

Fixes: 1c418c4a92 ("net: ipa: define resource group/type IPA register fields")
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Tested-by: Jami Kettunen <jami.kettunen@somainline.org>
Link: https://lore.kernel.org/r/20221024210336.4014983-2-caleb.connolly@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-25 19:48:58 -07:00
Caleb Connolly
f23a566bbf net: ipa: fix v3.5.1 resource limit max values
Some resource limits on IPA v3.5.1 have their max values set to
255, this causes a few splats in ipa_reg_encode and prevents the
IPA from booting properly. The limits are all 6 bits wide so
adjust the max values to 63.

Fixes: 1c418c4a92 ("net: ipa: define resource group/type IPA register fields")
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20221024210336.4014983-1-caleb.connolly@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-25 19:48:57 -07:00
Yang Yingliang
5da6d65590 net: ksz884x: fix missing pci_disable_device() on error in pcidev_init()
pci_disable_device() need be called while module exiting, switch to use
pcim_enable(), pci_disable_device() will be called in pcim_release()
while unbinding device.

Fixes: 8ca86fd83e ("net: Micrel KSZ8841/2 PCI Ethernet driver")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221024131338.2848959-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-25 19:46:35 -07:00
Slawomir Laba
3b32c99328 i40e: Fix flow-type by setting GL_HASH_INSET registers
Fix setting bits for specific flow_type for GLQF_HASH_INSET register.
In previous version all of the bits were set only in hena register, while
in inset only one bit was set. In order for this working correctly on all
types of cards these bits needs to be set correctly for both hena and inset
registers.

Fixes: eb0dd6e4a3 ("i40e: Allow RSS Hash set with less than four parameters")
Signed-off-by: Slawomir Laba <slawomirx.laba@intel.com>
Signed-off-by: Michal Jaron <michalx.jaron@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20221024100526.1874914-3-jacob.e.keller@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-25 16:18:32 -07:00
Sylwester Dziedziuch
52424f974b i40e: Fix VF hang when reset is triggered on another VF
When a reset was triggered on one VF with i40e_reset_vf
global PF state __I40E_VF_DISABLE was set on a PF until
the reset finished. If immediately after triggering reset
on one VF there is a request to reset on another
it will cause a hang on VF side because VF will be notified
of incoming reset but the reset will never happen because
of this global state, we will get such error message:

[  +4.890195] iavf 0000:86:02.1: Never saw reset

and VF will hang waiting for the reset to be triggered.

Fix this by introducing new VF state I40E_VF_STATE_RESETTING
that will be set on a VF if it is currently resetting instead of
the global __I40E_VF_DISABLE PF state.

Fixes: 3ba9bcb4b6 ("i40e: add locking around VF reset")
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20221024100526.1874914-2-jacob.e.keller@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-25 16:18:31 -07:00
Slawomir Laba
54b5af5a43 i40e: Fix ethtool rx-flow-hash setting for X722
When enabling flow type for RSS hash via ethtool:

ethtool -N $pf rx-flow-hash tcp4|tcp6|udp4|udp6 s|d

the driver would fail to setup this setting on X722
device since it was using the mask on the register
dedicated for X710 devices.

Apply a different mask on the register when setting the
RSS hash for the X722 device.

When displaying the flow types enabled via ethtool:

ethtool -n $pf rx-flow-hash tcp4|tcp6|udp4|udp6

the driver would print wrong values for X722 device.

Fix this issue by testing masks for X722 device in
i40e_get_rss_hash_opts function.

Fixes: eb0dd6e4a3 ("i40e: Allow RSS Hash set with less than four parameters")
Signed-off-by: Slawomir Laba <slawomirx.laba@intel.com>
Signed-off-by: Michal Jaron <michalx.jaron@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20221024100526.1874914-1-jacob.e.keller@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-25 16:18:31 -07:00
Eric Dumazet
d89d7ff012 ipv6: ensure sane device mtu in tunnels
Another syzbot report [1] with no reproducer hints
at a bug in ip6_gre tunnel (dev:ip6gretap0)

Since ipv6 mcast code makes sure to read dev->mtu once
and applies a sanity check on it (see commit b9b312a7a4
"ipv6: mcast: better catch silly mtu values"), a remaining
possibility is that a layer is able to set dev->mtu to
an underflowed value (high order bit set).

This could happen indeed in ip6gre_tnl_link_config_route(),
ip6_tnl_link_config() and ipip6_tunnel_bind_dev()

Make sure to sanitize mtu value in a local variable before
it is written once on dev->mtu, as lockless readers could
catch wrong temporary value.

[1]
skbuff: skb_over_panic: text:ffff80000b7a2f38 len:40 put:40 head:ffff000149dcf200 data:ffff000149dcf2b0 tail:0xd8 end:0xc0 dev:ip6gretap0
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:120
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 10241 Comm: kworker/1:1 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
Workqueue: mld mld_ifc_work
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : skb_panic+0x4c/0x50 net/core/skbuff.c:116
lr : skb_panic+0x4c/0x50 net/core/skbuff.c:116
sp : ffff800020dd3b60
x29: ffff800020dd3b70 x28: 0000000000000000 x27: ffff00010df2a800
x26: 00000000000000c0 x25: 00000000000000b0 x24: ffff000149dcf200
x23: 00000000000000c0 x22: 00000000000000d8 x21: ffff80000b7a2f38
x20: ffff00014c2f7800 x19: 0000000000000028 x18: 00000000000001a9
x17: 0000000000000000 x16: ffff80000db49158 x15: ffff000113bf1a80
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff000113bf1a80
x11: ff808000081c0d5c x10: 0000000000000000 x9 : 73f125dc5c63ba00
x8 : 73f125dc5c63ba00 x7 : ffff800008161d1c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff0001fefddcd0 x1 : 0000000100000000 x0 : 0000000000000089
Call trace:
skb_panic+0x4c/0x50 net/core/skbuff.c:116
skb_over_panic net/core/skbuff.c:125 [inline]
skb_put+0xd4/0xdc net/core/skbuff.c:2049
ip6_mc_hdr net/ipv6/mcast.c:1714 [inline]
mld_newpack+0x14c/0x270 net/ipv6/mcast.c:1765
add_grhead net/ipv6/mcast.c:1851 [inline]
add_grec+0xa20/0xae0 net/ipv6/mcast.c:1989
mld_send_cr+0x438/0x5a8 net/ipv6/mcast.c:2115
mld_ifc_work+0x38/0x290 net/ipv6/mcast.c:2653
process_one_work+0x2d8/0x504 kernel/workqueue.c:2289
worker_thread+0x340/0x610 kernel/workqueue.c:2436
kthread+0x12c/0x158 kernel/kthread.c:376
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Code: 91011400 aa0803e1 a90027ea 94373093 (d4210000)

Fixes: c12b395a46 ("gre: Support GRE over IPv6")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20221024020124.3756833-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-25 16:04:22 -07:00
Li Zetao
594d2a14f2 fs/binfmt_elf: Fix memory leak in load_elf_binary()
There is a memory leak reported by kmemleak:

  unreferenced object 0xffff88817104ef80 (size 224):
    comm "xfs_admin", pid 47165, jiffies 4298708825 (age 1333.476s)
    hex dump (first 32 bytes):
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
      60 a8 b3 00 81 88 ff ff a8 10 5a 00 81 88 ff ff  `.........Z.....
    backtrace:
      [<ffffffff819171e1>] __alloc_file+0x21/0x250
      [<ffffffff81918061>] alloc_empty_file+0x41/0xf0
      [<ffffffff81948cda>] path_openat+0xea/0x3d30
      [<ffffffff8194ec89>] do_filp_open+0x1b9/0x290
      [<ffffffff8192660e>] do_open_execat+0xce/0x5b0
      [<ffffffff81926b17>] open_exec+0x27/0x50
      [<ffffffff81a69250>] load_elf_binary+0x510/0x3ed0
      [<ffffffff81927759>] bprm_execve+0x599/0x1240
      [<ffffffff8192a997>] do_execveat_common.isra.0+0x4c7/0x680
      [<ffffffff8192b078>] __x64_sys_execve+0x88/0xb0
      [<ffffffff83bbf0a5>] do_syscall_64+0x35/0x80

If "interp_elf_ex" fails to allocate memory in load_elf_binary(),
the program will take the "out_free_ph" error handing path,
resulting in "interpreter" file resource is not released.

Fix it by adding an error handing path "out_free_file", which will
release the file resource when "interp_elf_ex" failed to allocate
memory.

Fixes: 0693ffebcf ("fs/binfmt_elf.c: allocate less for static executable")
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221024154421.982230-1-lizetao1@huawei.com
2022-10-25 15:11:21 -07:00
Bernd Edlinger
5bf2fedca8 exec: Copy oldsighand->action under spin-lock
unshare_sighand should only access oldsighand->action
while holding oldsighand->siglock, to make sure that
newsighand->action is in a consistent state.

Signed-off-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Cc: stable@vger.kernel.org
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/AM8PR10MB470871DEBD1DED081F9CC391E4389@AM8PR10MB4708.EURPRD10.PROD.OUTLOOK.COM
2022-10-25 15:05:58 -07:00
Kees Cook
72c3ebea37 overflow: Refactor test skips for Clang-specific issues
Convert test exclusion into test skipping. This brings the logic for
why a test is being skipped into the test itself, instead of having to
spread ifdefs around the code. This will make cleanup easier as minimum
tests get raised. Drop __maybe_unused so missed tests will be noticed
again and clean up whitespace.

For example, clang-11 on i386:

[15:52:32] ================== overflow (18 subtests) ==================
[15:52:32] [PASSED] u8_u8__u8_overflow_test
[15:52:32] [PASSED] s8_s8__s8_overflow_test
[15:52:32] [PASSED] u16_u16__u16_overflow_test
[15:52:32] [PASSED] s16_s16__s16_overflow_test
[15:52:32] [PASSED] u32_u32__u32_overflow_test
[15:52:32] [PASSED] s32_s32__s32_overflow_test
[15:52:32] [SKIPPED] u64_u64__u64_overflow_test
[15:52:32] [SKIPPED] s64_s64__s64_overflow_test
[15:52:32] [SKIPPED] u32_u32__int_overflow_test
[15:52:32] [PASSED] u32_u32__u8_overflow_test
[15:52:32] [PASSED] u8_u8__int_overflow_test
[15:52:32] [PASSED] int_int__u8_overflow_test
[15:52:32] [PASSED] shift_sane_test
[15:52:32] [PASSED] shift_overflow_test
[15:52:32] [PASSED] shift_truncate_test
[15:52:32] [PASSED] shift_nonsense_test
[15:52:32] [PASSED] overflow_allocation_test
[15:52:32] [PASSED] overflow_size_helpers_test
[15:52:32] ==================== [PASSED] overflow =====================
[15:52:32] ============================================================
[15:52:32] Testing complete. Ran 18 tests: passed: 15, skipped: 3

Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Tom Rix <trix@redhat.com>
Cc: Daniel Latypov <dlatypov@google.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: llvm@lists.linux.dev
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20221006230017.1833458-1-keescook@chromium.org
2022-10-25 14:57:42 -07:00
Nick Desaulniers
0e5b9f25b2 overflow: disable failing tests for older clang versions
Building the overflow kunit tests with clang-11 fails with:

$ ./tools/testing/kunit/kunit.py run --arch=arm --make_options LLVM=1 \
overflow
...
ld.lld: error: undefined symbol: __mulodi4
...

Clang 11 and earlier generate unwanted libcalls for signed output,
unsigned input.

Disable these tests for now, but should these become used in the kernel
we might consider that as justification for dropping clang-11 support.
Keep the clang-11 build alive a little bit longer.

Avoid -Wunused-function warnings via __maybe_unused. To test W=1:

$ make LLVM=1 -j128 defconfig
$ ./scripts/config -e KUNIT -e KUNIT_ALL
$ make LLVM=1 -j128 olddefconfig lib/overflow_kunit.o W=1

Link: https://github.com/ClangBuiltLinux/linux/issues/1711
Link: 3203143f13
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20221006171751.3444575-1-ndesaulniers@google.com
2022-10-25 14:57:42 -07:00
Kees Cook
31970608a6 overflow: Fix kern-doc markup for functions
Fix the kern-doc markings for several of the overflow helpers and move
their location into the core kernel API documentation, where it belongs
(it's not driver-specific).

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: linux-hardening@vger.kernel.org
Reviewed-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2022-10-25 14:57:42 -07:00
Arnaldo Carvalho de Melo
74455fd7e4 tools headers cpufeatures: Sync with the kernel sources
To pick the changes from:

  257449c6a5 ("x86/cpufeatures: Add LbrExtV2 feature bit")

This only causes these perf files to be rebuilt:

  CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
  CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o

And addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
  diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Link: https://lore.kernel.org/lkml/Y1g6vGPqPhOrXoaN@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Arnaldo Carvalho de Melo
49c75d30b0 tools headers uapi: Sync linux/stat.h with the kernel sources
To pick the changes from:

  825cf206ed ("statx: add direct I/O alignment information")

That add a constant that was manually added to tools/perf/trace/beauty/statx.c,
at some point this should move to the shell based automated way.

This silences this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/stat.h' differs from latest version at 'include/uapi/linux/stat.h'
  diff -u tools/include/uapi/linux/stat.h include/uapi/linux/stat.h

Cc: Eric Biggers <ebiggers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/Y1gGQL5LonnuzeYd@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Arnaldo Carvalho de Melo
82c50d8937 tools include UAPI: Sync sound/asound.h copy with the kernel sources
Picking the changes from:

  69ab6f5b00 ("ALSA: Remove some left-over license text in include/uapi/sound/")

Which entails no changes in the tooling side as it doesn't introduce new
SNDRV_PCM_IOCTL_ ioctls.

To silence this perf tools build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/sound/asound.h' differs from latest version at 'include/uapi/sound/asound.h'
  diff -u tools/include/uapi/sound/asound.h include/uapi/sound/asound.h

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Arnaldo Carvalho de Melo
036b8f5b89 tools headers uapi: Update linux/in.h copy
To get the changes in:

  65b32f801b ("uapi: move IPPROTO_L2TP to in.h")
  5854a09b49 ("net/ipv4: Use __DECLARE_FLEX_ARRAY() helper")

That ends up automatically adding the new IPPROTO_L2TP to the socket
args beautifiers:

  $ tools/perf/trace/beauty/socket.sh > before
  $ cp include/uapi/linux/in.h tools/include/uapi/linux/in.h
  $ tools/perf/trace/beauty/socket.sh > after
  $ diff -u before after
  --- before	2022-10-25 12:17:02.577892416 -0300
  +++ after	2022-10-25 12:17:10.806113033 -0300
  @@ -20,6 +20,7 @@
   	[98] = "ENCAP",
   	[103] = "PIM",
   	[108] = "COMP",
  +	[115] = "L2TP",
   	[132] = "SCTP",
   	[136] = "UDPLITE",
   	[137] = "MPLS",
  $

Now 'perf trace' will decode that 115 into "L2TP" and it will also be
possible to use it in tracepoint filter expressions.

Addresses this tools/perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/in.h' differs from latest version at 'include/uapi/linux/in.h'
  diff -u tools/include/uapi/linux/in.h include/uapi/linux/in.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Wojciech Drewek <wojciech.drewek@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/lkml/Y1f%2FGe6vjQrGjYiK@kernel.org/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Arnaldo Carvalho de Melo
4402e360d0 tools headers: Update the copy of x86's memcpy_64.S used in 'perf bench'
We also need to add SYM_TYPED_FUNC_START() to util/include/linux/linkage.h
and update tools/perf/check_headers.sh to ignore the include cfi_types.h
line when checking if the kernel original files drifted from the copies
we carry.

This is to get the changes from:

  ccace936ee ("x86: Add types to indirectly called assembly functions")

Addressing these tools/perf build warnings:

  Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S'
  diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/lkml/Y1f3VRIec9EBgX6F@kernel.org/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Arnaldo Carvalho de Melo
ffc1df3dc9 tools headers arm64: Sync arm64's cputype.h with the kernel sources
To get the changes in:

  0e5d5ae837 ("arm64: Add AMPERE1 to the Spectre-BHB affected list")

That addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/arm64/include/asm/cputype.h' differs from latest version at 'arch/arm64/include/asm/cputype.h'
  diff -u tools/arch/arm64/include/asm/cputype.h arch/arm64/include/asm/cputype.h

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: D Scott Phillips <scott@os.amperecomputing.com>
https://lore.kernel.org/lkml/Y1fy5GD7ZYvkeufv@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Namhyung Kim
246122a856 perf test: Do not fail Intel-PT misc test w/o libpython
The virtual LBR test uses a python script to check the max size of
branch stack in the Intel-PT generated LBR.  But it didn't check whether
python scripting is available (as it's optional).

Let's skip the test if the python support is not available.

Fixes: f77811a0f6 ("perf test: test_intel_pt.sh: Add 9 tests")
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Ammy Yi <ammy.yi@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221021181055.60183-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Thomas Richter
5a6c184a72 perf list: Fix PMU name pai_crypto in perf list on s390
Commit e0b23af82d ("perf list: Add PMU pai_crypto event
description for IBM z16") introduced the "Processor Activity
Instrumentation" for cryptographic counters for z16. The PMU device
driver exports the counters via sysfs files listed in directory
/sys/devices/pai_crypto.

To specify an event from that PMU, use 'perf stat -e pai_crypto/XXX/'.

However the JSON file mentioned in above commit exports the counter
decriptions in file pmu-events/arch/s390/cf_z16/pai.json.  Rename this
file to pmu-events/arch/s390/cf_z16/pai_crypto.json to make the naming
consistent.

Now 'perf list' shows the counter names under pai_crypto section:

  pai_crypto:

    CRYPTO_ALL
         [CRYPTO ALL. Unit: pai_crypto]
    ...

Output before was

  pai:
    CRYPTO_ALL
         [CRYPTO ALL. Unit: pai_crypto]
    ...

Fixes: e0b23af82d ("perf list: Add PMU pai_crypto event description for IBM z16")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/r/20221021082557.2695382-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Ian Rogers
304f0a2f6a perf record: Fix event fd races
The write call may set errno which is problematic if occurring in a
function also setting errno. Save and restore errno around the write
call.

done_fd may be used after close, clear it as part of the close and check
its validity in the signal handler.

Suggested-by: <gthelen@google.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anand K Mistry <amistry@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20221024011024.462518-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Arnaldo Carvalho de Melo
f1bdebbb67 perf bpf: Fix build with libbpf 0.7.0 by checking if bpf_program__set_insns() is available
During the transition to libbpf 1.0 some functions that perf used were
deprecated and finally removed from libbpf, so bpf_program__set_insns()
was introduced for perf to continue to use its bpf loader.

But when build with LIBBPF_DYNAMIC=1 we now need to check if that
function is available so that perf can build with older libbpf versions,
even if the end result is emitting a warning to the user that the use
of the perf BPF loader requires a newer libbpf, since bpf_program__set_insns()
touches libbpf objects internal state.

This affects only 'perf trace' when using bpf C code or pre-compiled
bytecode as an event.

Noticed on RHEL9, that has libbpf 0.7.0, where bpf_program__set_insns()
isn't available.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Arnaldo Carvalho de Melo
409fb6bdd6 perf bpf: Fix build with libbpf 0.7.0 by adding prototype for bpf_load_program()
The bpf_load_program() prototype appeared in tools/lib/bpf/bpf.h as
deprecated, but nowadays its completely removed, so add it back for
building with the system libbpf when using 'make LIBBPF_DYNAMIC=1'.

This is a stop gap hack till we do like tools/bpf does with bpftool,
i.e. bootstrap the libbpf build and install it in the perf build
directory when not using 'make LIBBPF_DYNAMIC=1'.

That has to be done to all libraries in tools/lib/, so tha we can
remove -Itools/lib/ from the tools/perf CFLAGS.

Noticed when building with LIBBPF_DYNAMIC=1 and libbpf 0.7.0 on RHEL9.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Kajol Jain
b92dd11725 perf vendor events power10: Fix hv-24x7 metric events
Testcase stat_all_metrics.sh fails in powerpc:

  90: perf all metrics test : FAILED!

The testcase "stat_all_metrics.sh" verifies perf stat result for all the
metric events present in perf list.  It runs perf metric events with
various commands and expects non-empty metric result.

Incase of powerpc:hv-24x7 events, some of the event count can be 0 based
on system configuration. And if that event used as denominator in divide
equation, it can cause divide by 0 error. The current nest_metric.json
file creating divide by 0 issue for some of the metric events, which
results in failure of the "stat_all_metrics.sh" test case.

Most of the metrics events have cycles or an event which expect to have
a larger value as denominator, so adding 1 to the denominator of the
metric expression as a fix.

Result in powerpc box after this patch changes:

  90: perf all metrics test : Ok

Fixes: a3cbcadfdf ("perf vendor events power10: Adds 24x7 nest metric events for power10 platform")
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Reviewed-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Link: https://lore.kernel.org/r/20221014140220.122251-1-kjain@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Adrian Hunter
231e61bc2e perf docs: Fix man page build wrt perf-arm-coresight.txt
perf build assumes documentation files starting with "perf-" are man
pages but perf-arm-coresight.txt is not a man page:

  asciidoc: ERROR: perf-arm-coresight.txt: line 2: malformed manpage title
  asciidoc: ERROR: perf-arm-coresight.txt: line 3: name section expected
  asciidoc: FAILED: perf-arm-coresight.txt: line 3: section title expected
  make[3]: *** [Makefile:266: perf-arm-coresight.xml] Error 1
  make[3]: *** Waiting for unfinished jobs....
  make[2]: *** [Makefile.perf:895: man] Error 2

Fix by renaming it.

Fixes: dc2e0fb00b ("perf test coresight: Add relevant documentation about ARM64 CoreSight testing")
Reported-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reported-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: coresight@lists.linaro.org
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/a176a3e1-6ddc-bb63-e41c-15cda8c2d5d2@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Arnaldo Carvalho de Melo
8886461194 tools headers UAPI: Sync powerpc syscall tables with the kernel sources
To pick the changes in these csets:

  e237506238 ("powerpc/32: fix syscall wrappers with 64-bit arguments of unaligned register-pairs")

That doesn't cause any changes in the perf tools.

As a reminder, this table is used in tools perf to allow features such as:

  [root@five ~]# perf trace -e set_mempolicy_home_node
  ^C[root@five ~]#
  [root@five ~]# perf trace -v -e set_mempolicy_home_node
  Using CPUID AuthenticAMD-25-21-0
  event qualifier tracepoint filter: (common_pid != 253729 && common_pid != 3585) && (id == 450)
  mmap size 528384B
  ^C[root@five ~]
  [root@five ~]# perf trace -v -e set*  --max-events 5
  Using CPUID AuthenticAMD-25-21-0
  event qualifier tracepoint filter: (common_pid != 253734 && common_pid != 3585) && (id == 38 || id == 54 || id == 105 || id == 106 || id == 109 || id == 112 || id == 113 || id == 114 || id == 116 || id == 117 || id == 119 || id == 122 || id == 123 || id == 141 || id == 160 || id == 164 || id == 170 || id == 171 || id == 188 || id == 205 || id == 218 || id == 238 || id == 273 || id == 308 || id == 450)
  mmap size 528384B
       0.000 ( 0.008 ms): bash/253735 setpgid(pid: 253735 (bash), pgid: 253735 (bash))      = 0
    6849.011 ( 0.008 ms): bash/16046 setpgid(pid: 253736 (bash), pgid: 253736 (bash))       = 0
    6849.080 ( 0.005 ms): bash/253736 setpgid(pid: 253736 (bash), pgid: 253736 (bash))      = 0
    7437.718 ( 0.009 ms): gnome-shell/253737 set_robust_list(head: 0x7f34b527e920, len: 24) = 0
   13445.986 ( 0.010 ms): bash/16046 setpgid(pid: 253738 (bash), pgid: 253738 (bash))       = 0
  [root@five ~]#

That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.

  $ find tools/perf/arch/ -name "syscall*tbl" | xargs grep -w set_mempolicy_home_node
  tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl:450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
  tools/perf/arch/powerpc/entry/syscalls/syscall.tbl:450 	nospu	set_mempolicy_home_node		sys_set_mempolicy_home_node
  tools/perf/arch/s390/entry/syscalls/syscall.tbl:450  common	set_mempolicy_home_node	sys_set_mempolicy_home_node	sys_set_mempolicy_home_node
  tools/perf/arch/x86/entry/syscalls/syscall_64.tbl:450	common	set_mempolicy_home_node	sys_set_mempolicy_home_node
  $

  $ grep -w set_mempolicy_home_node /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c
	[450] = "set_mempolicy_home_node",
  $

This addresses these perf build warnings:

  Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
  diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
  Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
  diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
  Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
  diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
  Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'
  diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
  Warning: Kernel ABI header at 'tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl' differs from latest version at 'arch/mips/kernel/syscalls/syscall_n64.tbl'
  diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Link: https://lore.kernel.org/lkml/Y01HN2DGkWz8tC%2FJ@kernel.org/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-25 17:40:48 -03:00
Linus Torvalds
4dc12f37a8 platform-drivers-x86 for v6.1-2
A small set of assorted fixes and hardware-id additions for 6.1.
 
 The following is an automated git shortlog grouped by driver:
 
 ACPI:
  -  video: Fix missing native backlight on Chromebooks
 
 asus-wmi:
  -  Add support for ROG X16 tablet mode
 
 leds:
  -  simatic-ipc-leds-gpio: fix incorrect LED to GPIO mapping
 
 platform/x86/amd:
  -  pmc: Read SMU version during suspend on Cezanne systems
 
 platform/x86/intel:
  -  pmc/core: Add Raptor Lake support to pmc core driver
 
 thinkpad_acpi:
  -  Fix reporting a non present second fan on some models
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Merge tag 'platform-drivers-x86-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:
 "The only thing which stands out is a fix for a backlight regression on
  Chromebooks (under drivers/acpi, with ack from Rafael).

  Other then that nothing special to report just various small fixes and
  hardware-id additions"

* tag 'platform-drivers-x86-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  ACPI: video: Fix missing native backlight on Chromebooks
  platform/x86/intel: pmc/core: Add Raptor Lake support to pmc core driver
  leds: simatic-ipc-leds-gpio: fix incorrect LED to GPIO mapping
  platform/x86/amd: pmc: Read SMU version during suspend on Cezanne systems
  platform/x86: thinkpad_acpi: Fix reporting a non present second fan on some models
  platform/x86: asus-wmi: Add support for ROG X16 tablet mode
2022-10-25 12:05:08 -07:00
Andy Shevchenko
92e10465ac device property: Fix documentation for *_match_string() APIs
The returned value on success is an index of the matching string,
starting from 0. Reflect this in the documentation.

Fixes: 3f5c8d3187 ("device property: Add fwnode_property_match_string()")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-10-25 20:17:59 +02:00
Mathias Nyman
5aed5b7c24 xhci: Remove device endpoints from bandwidth list when freeing the device
Endpoints are normally deleted from the bandwidth list when they are
dropped, before the virt device is freed.

If xHC host is dying or being removed then the endpoints aren't dropped
cleanly due to functions returning early to avoid interacting with a
non-accessible host controller.

So check and delete endpoints that are still on the bandwidth list when
freeing the virt device.

Solves a list_del corruption kernel crash when unbinding xhci-pci,
caused by xhci_mem_cleanup() when it later tried to delete already freed
endpoints from the bandwidth list.

This only affects hosts that use software bandwidth checking, which
currenty is only the xHC in intel Panther Point PCH (Ivy Bridge)

Cc: stable@vger.kernel.org
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Tested-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20221024142720.4122053-5-mathias.nyman@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-25 19:53:41 +02:00
Mario Limonciello
a611bf473d xhci-pci: Set runtime PM as default policy on all xHC 1.2 or later devices
For optimal power consumption of USB4 routers the XHCI PCIe endpoint
used for tunneling must be in D3.  Historically this is accomplished
by a long list of PCIe IDs that correspond to these endpoints because
the xhci_hcd driver will not default to allowing runtime PM for all
devices.

As both AMD and Intel have released new products with new XHCI controllers
this list continues to grow. In reviewing the XHCI specification v1.2 on
page 607 there is already a requirement that the PCI power management
states D3hot and D3cold must be supported.

In the quirk list, use this to indicate that runtime PM should be allowed
on XHCI controllers. The following controllers are known to be xHC 1.2 and
dropped explicitly:
* AMD Yellow Carp
* Intel Alder Lake
* Intel Meteor Lake
* Intel Raptor Lake

[keep PCI ID for Alder Lake PCH for recently added quirk -Mathias]

Cc: stable@vger.kernel.org
Suggested-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/extensible-host-controler-interface-usb-xhci.pdf
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20221024142720.4122053-4-mathias.nyman@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-25 19:53:41 +02:00
Mathias Nyman
34cd2db408 xhci: Add quirk to reset host back to default state at shutdown
Systems based on Alder Lake P see significant boot time delay if
boot firmware tries to control usb ports in unexpected link states.

This is seen with self-powered usb devices that survive in U3 link
suspended state over S5.

A more generic solution to power off ports at shutdown was attempted in
commit 83810f84ec ("xhci: turn off port power in shutdown")
but it caused regression.

Add host specific XHCI_RESET_TO_DEFAULT quirk which will reset host and
ports back to default state in shutdown.

Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20221024142720.4122053-3-mathias.nyman@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-25 19:53:41 +02:00
Jens Glathe
4f54747238 usb: xhci: add XHCI_SPURIOUS_SUCCESS to ASM1042 despite being a V0.96 controller
This appears to fix the error:
"xhci_hcd <address>; ERROR Transfer event TRB DMA ptr not part of
current TD ep_index 2 comp_code 13" that appear spuriously (or pretty
often) when using a r8152 USB3 ethernet adapter with integrated hub.

ASM1042 reports as a 0.96 controller, but appears to behave more like 1.0

Inspired by this email thread: https://markmail.org/thread/7vzqbe7t6du6qsw3

Cc: stable@vger.kernel.org
Signed-off-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20221024142720.4122053-2-mathias.nyman@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-25 19:53:41 +02:00
Jason A. Donenfeld
6770473832 misc: sgi-gru: use explicitly signed char
With char becoming unsigned by default, and with `char` alone being
ambiguous and based on architecture, signed chars need to be marked
explicitly as such. This fixes warnings like:

drivers/misc/sgi-gru/grumain.c:711 gru_check_chiplet_assignment() warn: 'gts->ts_user_chiplet_id' is unsigned

Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20221025025223.573543-1-Jason@zx2c4.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-25 19:12:10 +02:00
Greg Kroah-Hartman
1deac35b2d First set of Counter fixes for 6.1 cycle
Typical driver fixes for races and bugs. This also includes a sparse
 warning fix for the recently introduced counter_array API: the macro
 DEFINE_COUNTER_ARRAY_POLARITY() is reduced to a simple structure
 definition rather than multiple data structure definitions.
 
 - 104-quad-8
   * Fix race getting function mode and direction
 - microchip-tcb-capture
   * Handle Signal1 read and Synapse
 - ti-ecap-capture
   * fix IS_ERR() vs NULL check
 - counter
   * Reduce DEFINE_COUNTER_ARRAY_POLARITY() to defining counter_array
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Merge tag 'counter-fixes-for-6.1a' of git://git.kernel.org/pub/scm/linux/kernel/git/wbg/counter into char-misc-linus

William writes:
  "First set of Counter fixes for 6.1 cycle

   Typical driver fixes for races and bugs. This also includes a sparse
   warning fix for the recently introduced counter_array API: the macro
   DEFINE_COUNTER_ARRAY_POLARITY() is reduced to a simple structure
   definition rather than multiple data structure definitions.
   - 104-quad-8
     * Fix race getting function mode and direction
   - microchip-tcb-capture
     * Handle Signal1 read and Synapse
   - ti-ecap-capture
     * fix IS_ERR() vs NULL check
   - counter
     * Reduce DEFINE_COUNTER_ARRAY_POLARITY() to defining counter_array"

* tag 'counter-fixes-for-6.1a' of git://git.kernel.org/pub/scm/linux/kernel/git/wbg/counter:
  counter: 104-quad-8: Fix race getting function mode and direction
  counter: microchip-tcb-capture: Handle Signal1 read and Synapse
  counter: ti-ecap-capture: fix IS_ERR() vs NULL check
  counter: Reduce DEFINE_COUNTER_ARRAY_POLARITY() to defining counter_array
2022-10-25 19:08:40 +02:00
James Clark
6746eae4bb coresight: cti: Fix hang in cti_disable_hw()
cti_enable_hw() and cti_disable_hw() are called from an atomic context
so shouldn't use runtime PM because it can result in a sleep when
communicating with firmware.

Since commit 3c66563378 ("Revert "firmware: arm_scmi: Add clock
management to the SCMI power domain""), this causes a hang on Juno when
running the Perf Coresight tests or running this command:

  perf record -e cs_etm//u -- ls

This was also missed until the revert commit because pm_runtime_put()
was called with the wrong device until commit 692c9a499b ("coresight:
cti: Correct the parameter for pm_runtime_put")

With lock and scheduler debugging enabled the following is output:

   coresight cti_sys0: cti_enable_hw -- dev:cti_sys0  parent: 20020000.cti
   BUG: sleeping function called from invalid context at drivers/base/power/runtime.c:1151
   in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 330, name: perf-exec
   preempt_count: 2, expected: 0
   RCU nest depth: 0, expected: 0
   INFO: lockdep is turned off.
   irq event stamp: 0
   hardirqs last  enabled at (0): [<0000000000000000>] 0x0
   hardirqs last disabled at (0): [<ffff80000822b394>] copy_process+0xa0c/0x1948
   softirqs last  enabled at (0): [<ffff80000822b394>] copy_process+0xa0c/0x1948
   softirqs last disabled at (0): [<0000000000000000>] 0x0
   CPU: 3 PID: 330 Comm: perf-exec Not tainted 6.0.0-00053-g042116d99298 #7
   Hardware name: ARM LTD ARM Juno Development Platform/ARM Juno Development Platform, BIOS EDK II Sep 13 2022
   Call trace:
    dump_backtrace+0x134/0x140
    show_stack+0x20/0x58
    dump_stack_lvl+0x8c/0xb8
    dump_stack+0x18/0x34
    __might_resched+0x180/0x228
    __might_sleep+0x50/0x88
    __pm_runtime_resume+0xac/0xb0
    cti_enable+0x44/0x120
    coresight_control_assoc_ectdev+0xc0/0x150
    coresight_enable_path+0xb4/0x288
    etm_event_start+0x138/0x170
    etm_event_add+0x48/0x70
    event_sched_in.isra.122+0xb4/0x280
    merge_sched_in+0x1fc/0x3d0
    visit_groups_merge.constprop.137+0x16c/0x4b0
    ctx_sched_in+0x114/0x1f0
    perf_event_sched_in+0x60/0x90
    ctx_resched+0x68/0xb0
    perf_event_exec+0x138/0x508
    begin_new_exec+0x52c/0xd40
    load_elf_binary+0x6b8/0x17d0
    bprm_execve+0x360/0x7f8
    do_execveat_common.isra.47+0x218/0x238
    __arm64_sys_execve+0x48/0x60
    invoke_syscall+0x4c/0x110
    el0_svc_common.constprop.4+0xfc/0x120
    do_el0_svc+0x34/0xc0
    el0_svc+0x40/0x98
    el0t_64_sync_handler+0x98/0xc0
    el0t_64_sync+0x170/0x174

Fix the issue by removing the runtime PM calls completely. They are not
needed here because it must have already been done when building the
path for a trace.

Fixes: 835d722ba1 ("coresight: cti: Initial CoreSight CTI Driver")
Cc: stable <stable@kernel.org>
Reported-by: Aishwarya TCV <Aishwarya.TCV@arm.com>
Reported-by: Cristian Marussi <Cristian.Marussi@arm.com>
Suggested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Mike Leach <mike.leach@linaro.org>
[ Fix build warnings ]
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20221025131032.1149459-1-suzuki.poulose@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-25 19:08:07 +02:00
Patrice Chotard
3f53c329b3 usb: dwc3: st: Rely on child's compatible instead of name
To ensure that child node is found, don't rely on child's node name
which can take different value, but on child's compatible name.

Fixes: f5c5936d6b ("usb: dwc3: st: Fix node's child name")
Cc: stable <stable@kernel.org>
Cc: Jerome Audu <jerome.audu@st.com>
Reported-by: Felipe Balbi <felipe@balbi.sh>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://lore.kernel.org/r/20220930142018.890535-1-patrice.chotard@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-25 19:06:13 +02:00
Michael Grzeschik
19905240ae usb: gadget: uvc: limit isoc_sg to super speed gadgets
The overhead of preparing sg data is high for transfers with limited
payload. When transferring isoc over high-speed usb the maximum payload
is rather small which is a good argument no to use sg. This patch is
changing the uvc_video_encode_isoc_sg encode function only to be used
for super speed gadgets.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20221017221141.3134818-1-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-25 19:06:13 +02:00
Todd Brandt
9bfb09774e pm-graph v5.10
sleepgraph:
- add -wifitrace argument for tracing all the way to wifi reconnect
- include more data in ftrace to mark the end of kernel resume
- add async_synchronize_full to the list of funcs to chart
- add thermal zone info to the log data
- include a check for s0ix support (s2idle is the default mem_sleep)
- if s2idle does not support s0ix, remove the SYS%LPI turbostat var
- fix -dev crash when kprobe caller is just an address (not a symbol)
- fix the cpuexec data in -proc to display in resume

sleepgraph.8:
- add -wifitrace documentation

README:
- change links from 01.org to developer.intel.com

Signed-off-by: Todd Brandt <todd.e.brandt@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-10-25 17:46:15 +02:00
Hans Verkuil
de547896aa media: vivid.rst: loop_video is set on the capture devnode
The example on how to use and test Capture Overlay specified
the wrong video device node. Back in 2015 the loop_video control
moved from the output device to the capture device, but this
example code is still referring to the output video device.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-10-25 16:43:54 +01:00
Hans Verkuil
69d78a80da media: vivid: set num_in/outputs to 0 if not supported
If node_types does not have video/vbi/meta inputs or outputs,
then set num_inputs/num_outputs to 0 instead of 1.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 0c90f649d2 (media: vivid: add vivid_create_queue() helper)
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-10-25 16:43:34 +01:00
Hans Verkuil
957148e228 media: vivid: drop GFP_DMA32
>From what I can see, this is not needed. And since using it issues a 'deprecated'
warning, just drop it.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-10-25 16:43:00 +01:00