platform/kernel/linux-starfive.git
23 months agoMerge tag '5.19-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Thu, 14 Jul 2022 19:35:15 +0000 (12:35 -0700)]
Merge tag '5.19-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Three smb3 client fixes:

   - two multichannel fixes: fix a potential deadlock freeing a channel,
     and fix a race condition on failed creation of a new channel

   - mount failure fix: work around a server bug in some common older
     Samba servers by avoiding padding at the end of the negotiate
     protocol request"

* tag '5.19-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: workaround negprot bug in some Samba servers
  cifs: remove unnecessary locking of chan_lock while freeing session
  cifs: fix race condition with delayed threads

23 months agoMerge tag 'nfsd-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Linus Torvalds [Thu, 14 Jul 2022 19:29:43 +0000 (12:29 -0700)]
Merge tag 'nfsd-5.19-3' of git://git./linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:
 "Notable regression fixes:

   - Enable SETATTR(time_create) to fix regression with Mac OS clients

   - Fix a lockd crasher and broken NLM UNLCK behavior"

* tag 'nfsd-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  lockd: fix nlm_close_files
  lockd: set fl_owner when unlocking files
  NFSD: Decode NFSv4 birth time attribute

23 months agoMerge tag 'integrity-v5.19-fix' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 14 Jul 2022 19:15:42 +0000 (12:15 -0700)]
Merge tag 'integrity-v5.19-fix' of git://git./linux/kernel/git/zohar/linux-integrity

Pull integrity fixes from Mimi Zohar:
 "Here are a number of fixes for recently found bugs.

  Only 'ima: fix violation measurement list record' was introduced in
  the current release. The rest address existing bugs"

* tag 'integrity-v5.19-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  ima: Fix potential memory leak in ima_init_crypto()
  ima: force signature verification when CONFIG_KEXEC_SIG is configured
  ima: Fix a potential integer overflow in ima_appraise_measurement
  ima: fix violation measurement list record
  Revert "evm: Fix memleak in init_desc"

23 months agoMerge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Linus Torvalds [Thu, 14 Jul 2022 19:08:59 +0000 (12:08 -0700)]
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:

 - quieten the spectre-bhb prints

 - mark flattened device tree sections as shareable

 - remove some obsolete CPU domain code and help text

 - fix thumb unaligned access abort emulation

 - fix amba_device_add() refcount underflow

 - fix literal placement

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 9208/1: entry: add .ltorg directive to keep literals in range
  ARM: 9207/1: amba: fix refcount underflow if amba_device_add() fails
  ARM: 9214/1: alignment: advance IT state after emulating Thumb instruction
  ARM: 9213/1: Print message about disabled Spectre workarounds only once
  ARM: 9212/1: domain: Modify Kconfig help text
  ARM: 9211/1: domain: drop modify_domain()
  ARM: 9210/1: Mark the FDT_FIXED sections as shareable
  ARM: 9209/1: Spectre-BHB: avoid pr_info() every time a CPU comes out of idle

23 months agoum: Replace to_phys() and to_virt() with less generic function names
Guenter Roeck [Thu, 14 Jul 2022 18:46:00 +0000 (11:46 -0700)]
um: Replace to_phys() and to_virt() with less generic function names

The UML function names to_virt() and to_phys() are exposed by UML
headers, and are very generic and may be defined by drivers.  As it
turns out, commit 9409c9b6709e ("pmem: refactor pmem_clear_poison()")
did exactly that.

This results in build errors such as the following when trying to build
um:allmodconfig:

  drivers/nvdimm/pmem.c: In function ‘pmem_dax_zero_page_range’:
  ./arch/um/include/asm/page.h:105:20: error: too few arguments to function ‘to_phys’
    105 | #define __pa(virt) to_phys((void *) (unsigned long) (virt))
        |                    ^~~~~~~

Use less generic function names for the um specific to_phys() and
to_virt() functions to fix the problem and to avoid similar problems in
the future.

Fixes: 9409c9b6709e ("pmem: refactor pmem_clear_poison()")
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
23 months agoMerge tag 'sound-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Thu, 14 Jul 2022 18:34:16 +0000 (11:34 -0700)]
Merge tag 'sound-5.19-rc7' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Hopefully the last one for 5.19. This became bigger than wished, but
  all changes are pretty device-specific small fixes, which look less
  worrisome.

  The majority of changes are about various ASoC fixes, while the usual
  HD-audio quirks are included as well"

* tag 'sound-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (28 commits)
  ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop
  ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221
  ALSA: hda/realtek: fix mute/micmute LEDs for HP machines
  ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671
  ALSA: hda - Add fixup for Dell Latitidue E5430
  ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model
  ALSA: hda/realtek: Fix headset mic for Acer SF313-51
  ASoC: Intel: Skylake: Correct the handling of fmt_config flexible array
  ASoC: Intel: Skylake: Correct the ssp rate discovery in skl_get_ssp_clks()
  ASoC: rt5640: Fix the wrong state of JD1 and JD2
  ASoC: Intel: sof_rt5682: fix out-of-bounds array access
  ASoC: qdsp6: fix potential memory leak in q6apm_get_audioreach_graph()
  ASoC: tas2764: Fix amp gain register offset & default
  ASoC: tas2764: Correct playback volume range
  ASoC: tas2764: Fix and extend FSYNC polarity handling
  ASoC: tas2764: Add post reset delays
  ASoC: dt-bindings: Fix description for msm8916
  ASoC: doc: Capitalize RESET line name
  ASoC: arizona: Update arizona_aif_cfg_changed to use RX_BCLK_RATE
  ASoC: cs47l92: Fix event generation for OUT1 demux
  ...

23 months agonfp: flower: configure tunnel neighbour on cmsg rx
Tianyu Yuan [Thu, 14 Jul 2022 08:19:15 +0000 (10:19 +0200)]
nfp: flower: configure tunnel neighbour on cmsg rx

nfp_tun_write_neigh() function will configure a tunnel neighbour when
calling nfp_tun_neigh_event_handler() or nfp_flower_cmsg_process_one_rx()
(with no tunnel neighbour type) from firmware.

When configuring IP on physical port as a tunnel endpoint, no operation
will be performed after receiving the cmsg mentioned above.

Therefore, add a progress to configure tunnel neighbour in this case.

v2: Correct format of fixes tag.

Fixes: f1df7956c11f ("nfp: flower: rework tunnel neighbour configuration")
Signed-off-by: Tianyu Yuan <tianyu.yuan@corigine.com>
Reviewed-by: Louis Peens <louis.peens@corigine.com>
Reviewed-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220714081915.148378-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet/tls: Check for errors in tls_device_init
Tariq Toukan [Thu, 14 Jul 2022 07:07:54 +0000 (10:07 +0300)]
net/tls: Check for errors in tls_device_init

Add missing error checks in tls_device_init.

Fixes: e8f69799810c ("net/tls: Add generic NIC offload infrastructure")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20220714070754.1428-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoMAINTAINERS: Add an additional maintainer to the AMD XGBE driver
Tom Lendacky [Wed, 13 Jul 2022 22:31:41 +0000 (17:31 -0500)]
MAINTAINERS: Add an additional maintainer to the AMD XGBE driver

Add Shyam Sundar S K as an additional maintainer to support the AMD XGBE
network device driver.

Cc: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/db367f24089c2bbbcd1cec8e21af49922017a110.1657751501.git.thomas.lendacky@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoxen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue
Juergen Gross [Wed, 13 Jul 2022 13:53:22 +0000 (15:53 +0200)]
xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue

xenvif_rx_next_skb() is expecting the rx queue not being empty, but
in case the loop in xenvif_rx_action() is doing multiple iterations,
the availability of another skb in the rx queue is not being checked.

This can lead to crashes:

[40072.537261] BUG: unable to handle kernel NULL pointer dereference at 0000000000000080
[40072.537407] IP: xenvif_rx_skb+0x23/0x590 [xen_netback]
[40072.537534] PGD 0 P4D 0
[40072.537644] Oops: 0000 [#1] SMP NOPTI
[40072.537749] CPU: 0 PID: 12505 Comm: v1-c40247-q2-gu Not tainted 4.12.14-122.121-default #1 SLE12-SP5
[40072.537867] Hardware name: HP ProLiant DL580 Gen9/ProLiant DL580 Gen9, BIOS U17 11/23/2021
[40072.537999] task: ffff880433b38100 task.stack: ffffc90043d40000
[40072.538112] RIP: e030:xenvif_rx_skb+0x23/0x590 [xen_netback]
[40072.538217] RSP: e02b:ffffc90043d43de0 EFLAGS: 00010246
[40072.538319] RAX: 0000000000000000 RBX: ffffc90043cd7cd0 RCX: 00000000000000f7
[40072.538430] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffffc90043d43df8
[40072.538531] RBP: 000000000000003f R08: 000077ff80000000 R09: 0000000000000008
[40072.538644] R10: 0000000000007ff0 R11: 00000000000008f6 R12: ffffc90043ce2708
[40072.538745] R13: 0000000000000000 R14: ffffc90043d43ed0 R15: ffff88043ea748c0
[40072.538861] FS: 0000000000000000(0000) GS:ffff880484600000(0000) knlGS:0000000000000000
[40072.538988] CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033
[40072.539088] CR2: 0000000000000080 CR3: 0000000407ac8000 CR4: 0000000000040660
[40072.539211] Call Trace:
[40072.539319] xenvif_rx_action+0x71/0x90 [xen_netback]
[40072.539429] xenvif_kthread_guest_rx+0x14a/0x29c [xen_netback]

Fix that by stopping the loop in case the rx queue becomes empty.

Cc: stable@vger.kernel.org
Fixes: 98f6d57ced73 ("xen-netback: process guest rx packets in batches")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Link: https://lore.kernel.org/r/20220713135322.19616-1-jgross@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoamdgpu: disable powerpc support for the newer display engine
Linus Torvalds [Wed, 13 Jul 2022 19:36:50 +0000 (12:36 -0700)]
amdgpu: disable powerpc support for the newer display engine

The DRM_AMD_DC_DCN display engine support (Raven, Navi, and newer) has
not been building cleanly on powerpc and causes link errors due to
mixing hard- and soft-float object files:

  powerpc64-linux-ld: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/display_mode_lib.o uses hard float, drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_resource.o uses soft float
  powerpc64-linux-ld: failed to merge target specific data of file drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_resource.o
  [..]

and while patches are floating around, it's not exactly obvious what is
going on.

The problem bisects to commit 41b7a347bf14 ("powerpc: Book3S 64-bit
outline-only KASAN support") but that is probably more about changing
config variables than the fundamental cause.

Despite the bisection result, a more directly related commit seems to be
26f4712aedbd ("drm/amd/display: move FPU related code from dcn31 to
dml/dcn31 folder").  It's probably a combination of the two.

This has been going on since the merge window, without any final word.
So instead of blindly applying patches that may or may not be the right
thing, let's disable this for now.

As Michael Ellerman says:
 "IIUIC this code was never enabled on ppc before, so disabling it seems
  like a reasonable fix to get the build clean"

and once we have more actual feedback (and find any potential users) we
can always re-enable it with the patch that fixes the issues and
back-port as necessary.

Fixes: 41b7a347bf14 ("powerpc: Book3S 64-bit outline-only KASAN support")
Fixes: 26f4712aedbd ("drm/amd/display: move FPU related code from dcn31 to dml/dcn31 folder")
Reported-and-tested-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/all/20220606153910.GA1773067@roeck-us.net/
Link: https://lore.kernel.org/all/20220618232737.2036722-1-linux@roeck-us.net/
Link: https://lore.kernel.org/all/20220713050724.GA2471738@roeck-us.net/
Acked-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
23 months agoigc: Reinstate IGC_REMOVED logic and implement it properly
Lennert Buytenhek [Thu, 2 Jun 2022 15:58:11 +0000 (18:58 +0300)]
igc: Reinstate IGC_REMOVED logic and implement it properly

The initially merged version of the igc driver code (via commit
146740f9abc4, "igc: Add support for PF") contained the following
IGC_REMOVED checks in the igc_rd32/wr32() MMIO accessors:

u32 igc_rd32(struct igc_hw *hw, u32 reg)
{
u8 __iomem *hw_addr = READ_ONCE(hw->hw_addr);
u32 value = 0;

if (IGC_REMOVED(hw_addr))
return ~value;

value = readl(&hw_addr[reg]);

/* reads should not return all F's */
if (!(~value) && (!reg || !(~readl(hw_addr))))
hw->hw_addr = NULL;

return value;
}

And:

#define wr32(reg, val) \
do { \
u8 __iomem *hw_addr = READ_ONCE((hw)->hw_addr); \
if (!IGC_REMOVED(hw_addr)) \
writel((val), &hw_addr[(reg)]); \
} while (0)

E.g. igb has similar checks in its MMIO accessors, and has a similar
macro E1000_REMOVED, which is implemented as follows:

#define E1000_REMOVED(h) unlikely(!(h))

These checks serve to detect and take note of an 0xffffffff MMIO read
return from the device, which can be caused by a PCIe link flap or some
other kind of PCI bus error, and to avoid performing MMIO reads and
writes from that point onwards.

However, the IGC_REMOVED macro was not originally implemented:

#ifndef IGC_REMOVED
#define IGC_REMOVED(a) (0)
#endif /* IGC_REMOVED */

This led to the IGC_REMOVED logic to be removed entirely in a
subsequent commit (commit 3c215fb18e70, "igc: remove IGC_REMOVED
function"), with the rationale that such checks matter only for
virtualization and that igc does not support virtualization -- but a
PCIe device can become detached even without virtualization being in
use, and without proper checks, a PCIe bus error affecting an igc
adapter will lead to various NULL pointer dereferences, as the first
access after the error will set hw->hw_addr to NULL, and subsequent
accesses will blindly dereference this now-NULL pointer.

This patch reinstates the IGC_REMOVED checks in igc_rd32/wr32(), and
implements IGC_REMOVED the way it is done for igb, by checking for the
unlikely() case of hw_addr being NULL.  This change prevents the oopses
seen when a PCIe link flap occurs on an igc adapter.

Fixes: 146740f9abc4 ("igc: Add support for PF")
Signed-off-by: Lennert Buytenhek <buytenh@arista.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
23 months agoRevert "e1000e: Fix possible HW unit hang after an s0ix exit"
Sasha Neftin [Mon, 9 May 2022 08:52:54 +0000 (11:52 +0300)]
Revert "e1000e: Fix possible HW unit hang after an s0ix exit"

This reverts commit 1866aa0d0d6492bc2f8d22d0df49abaccf50cddd.

Commit 1866aa0d0d64 ("e1000e: Fix possible HW unit hang after an s0ix
exit") was a workaround for CSME problem to handle messages comes via H2ME
mailbox. This problem has been fixed by patch "e1000e: Enable the GPT
clock before sending message to the CSME".

Fixes: 3e55d231716e ("e1000e: Add handshake with the CSME to support S0ix")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=214821
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
23 months agoe1000e: Enable GPT clock before sending message to CSME
Sasha Neftin [Sun, 8 May 2022 07:09:05 +0000 (10:09 +0300)]
e1000e: Enable GPT clock before sending message to CSME

On corporate (CSME) ADL systems, the Ethernet Controller may stop working
("HW unit hang") after exiting from the s0ix state. The reason is that
CSME misses the message sent by the host. Enabling the dynamic GPT clock
solves this problem. This clock is cleared upon HW initialization.

Fixes: 3e55d231716e ("e1000e: Add handshake with the CSME to support S0ix")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=214821
Reviewed-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
23 months agoselftests/net: test nexthop without gw
Nicolas Dichtel [Wed, 13 Jul 2022 11:48:53 +0000 (13:48 +0200)]
selftests/net: test nexthop without gw

This test implement the scenario described in the commit
"ip: fix dflt addr selection for connected nexthop".
The test configures a nexthop object with an output device only (no gateway
address) and a route that uses this nexthop. The goal is to check if the
kernel selects a valid source address.

Link: https://lore.kernel.org/netdev/20220712095545.10947-1-nicolas.dichtel@6wind.com/
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20220713114853.29406-2-nicolas.dichtel@6wind.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agoip: fix dflt addr selection for connected nexthop
Nicolas Dichtel [Wed, 13 Jul 2022 11:48:52 +0000 (13:48 +0200)]
ip: fix dflt addr selection for connected nexthop

When a nexthop is added, without a gw address, the default scope was set
to 'host'. Thus, when a source address is selected, 127.0.0.1 may be chosen
but rejected when the route is used.

When using a route without a nexthop id, the scope can be configured in the
route, thus the problem doesn't exist.

To explain more deeply: when a user creates a nexthop, it cannot specify
the scope. To create it, the function nh_create_ipv4() calls fib_check_nh()
with scope set to 0. fib_check_nh() calls fib_check_nh_nongw() wich was
setting scope to 'host'. Then, nh_create_ipv4() calls
fib_info_update_nhc_saddr() with scope set to 'host'. The src addr is
chosen before the route is inserted.

When a 'standard' route (ie without a reference to a nexthop) is added,
fib_create_info() calls fib_info_update_nhc_saddr() with the scope set by
the user. iproute2 set the scope to 'link' by default.

Here is a way to reproduce the problem:
ip netns add foo
ip -n foo link set lo up
ip netns add bar
ip -n bar link set lo up
sleep 1

ip -n foo link add name eth0 type dummy
ip -n foo link set eth0 up
ip -n foo address add 192.168.0.1/24 dev eth0

ip -n foo link add name veth0 type veth peer name veth1 netns bar
ip -n foo link set veth0 up
ip -n bar link set veth1 up

ip -n bar address add 192.168.1.1/32 dev veth1
ip -n bar route add default dev veth1

ip -n foo nexthop add id 1 dev veth0
ip -n foo route add 192.168.1.1 nhid 1

Try to get/use the route:
> $ ip -n foo route get 192.168.1.1
> RTNETLINK answers: Invalid argument
> $ ip netns exec foo ping -c1 192.168.1.1
> ping: connect: Invalid argument

Try without nexthop group (iproute2 sets scope to 'link' by dflt):
ip -n foo route del 192.168.1.1
ip -n foo route add 192.168.1.1 dev veth0

Try to get/use the route:
> $ ip -n foo route get 192.168.1.1
> 192.168.1.1 dev veth0 src 192.168.0.1 uid 0
>     cache
> $ ip netns exec foo ping -c1 192.168.1.1
> PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
> 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.039 ms
>
> --- 192.168.1.1 ping statistics ---
> 1 packets transmitted, 1 received, 0% packet loss, time 0ms
> rtt min/avg/max/mdev = 0.039/0.039/0.039/0.000 ms

CC: stable@vger.kernel.org
Fixes: 597cfe4fc339 ("nexthop: Add support for IPv4 nexthops")
Reported-by: Edwin Brossette <edwin.brossette@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20220713114853.29406-1-nicolas.dichtel@6wind.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agoARM: 9208/1: entry: add .ltorg directive to keep literals in range
Ard Biesheuvel [Tue, 31 May 2022 08:49:24 +0000 (09:49 +0100)]
ARM: 9208/1: entry: add .ltorg directive to keep literals in range

LKP reports a build issue on Clang, related to a literal load of
__current issued through the ldr_va macro. This turns out to be due to
the fact that group relocations are disabled when CONFIG_COMPILE_TEST=y,
which means that the ldr_va macro resolves to a pair of LDR
instructions, the first one being a literal load issued too far from its
literal pool.

Due to the introduction of a couple of new uses of this macro in commit
508074607c7b95b2 ("ARM: 9195/1: entry: avoid explicit literal loads"),
the literal pools end up getting rearranged in a way that causes the
literal for __current to go out of range. Let's fix this up by putting a
.ltorg directive in a suitable place in the code.

Link: https://lore.kernel.org/all/202205290805.1vZLAr36-lkp@intel.com/
Fixes: 508074607c7b95b2 ("ARM: 9195/1: entry: avoid explicit literal loads")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
23 months agoARM: 9207/1: amba: fix refcount underflow if amba_device_add() fails
Wang Kefeng [Tue, 24 May 2022 08:03:46 +0000 (09:03 +0100)]
ARM: 9207/1: amba: fix refcount underflow if amba_device_add() fails

"ARM: 9192/1: amba: fix memory leak in amba_device_try_add()" leads
to a refcount underflow if amba_device_add() fails, which called by
of_amba_device_create(), the of_amba_device_create() already exists
the error handling, so amba_put_device() only need to be added into
amba_deferred_retry().

Fixes: 7719a68b2fa4 ("ARM: 9192/1: amba: fix memory leak in amba_device_try_add()")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
23 months agonet: atlantic: remove aq_nic_deinit() when resume
Chia-Lin Kao (AceLan) [Wed, 13 Jul 2022 11:12:24 +0000 (19:12 +0800)]
net: atlantic: remove aq_nic_deinit() when resume

aq_nic_deinit() has been called while suspending, so we don't have to call
it again on resume.
Actually, call it again leads to another hang issue when resuming from
S3.

Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992345] Call Trace:
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992346] <TASK>
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992348] aq_nic_deinit+0xb4/0xd0 [atlantic]
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992356] aq_pm_thaw+0x7f/0x100 [atlantic]
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992362] pci_pm_resume+0x5c/0x90
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992366] ? pci_pm_thaw+0x80/0x80
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992368] dpm_run_callback+0x4e/0x120
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992371] device_resume+0xad/0x200
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992373] async_resume+0x1e/0x40
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992374] async_run_entry_fn+0x33/0x120
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992377] process_one_work+0x220/0x3c0
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992380] worker_thread+0x4d/0x3f0
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992382] ? process_one_work+0x3c0/0x3c0
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992384] kthread+0x12a/0x150
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992386] ? set_kthread_struct+0x40/0x40
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992387] ret_from_fork+0x22/0x30
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992391] </TASK>
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992392] ---[ end trace 1ec8c79604ed5e0d ]---
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992394] PM: dpm_run_callback(): pci_pm_resume+0x0/0x90 returns -110
Jul 8 03:09:44 u-Precision-7865-Tower kernel: [ 5910.992397] atlantic 0000:02:00.0: PM: failed to resume async: error -110

Fixes: 1809c30b6e5a ("net: atlantic: always deep reset on pm op, fixing up my null deref regression")
Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com>
Link: https://lore.kernel.org/r/20220713111224.1535938-2-acelan.kao@canonical.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agonet: atlantic: remove deep parameter on suspend/resume functions
Chia-Lin Kao (AceLan) [Wed, 13 Jul 2022 11:12:23 +0000 (19:12 +0800)]
net: atlantic: remove deep parameter on suspend/resume functions

Below commit claims that atlantic NIC requires to reset the device on pm
op, and had set the deep to true for all suspend/resume functions.
commit 1809c30b6e5a ("net: atlantic: always deep reset on pm op, fixing up my null deref regression")
So, we could remove deep parameter on suspend/resume functions without
any functional change.

Fixes: 1809c30b6e5a ("net: atlantic: always deep reset on pm op, fixing up my null deref regression")
Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com>
Link: https://lore.kernel.org/r/20220713111224.1535938-1-acelan.kao@canonical.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agosfc: fix kernel panic when creating VF
Íñigo Huguet [Wed, 13 Jul 2022 09:21:16 +0000 (11:21 +0200)]
sfc: fix kernel panic when creating VF

When creating VFs a kernel panic can happen when calling to
efx_ef10_try_update_nic_stats_vf.

When releasing a DMA coherent buffer, sometimes, I don't know in what
specific circumstances, it has to unmap memory with vunmap. It is
disallowed to do that in IRQ context or with BH disabled. Otherwise, we
hit this line in vunmap, causing the crash:
  BUG_ON(in_interrupt());

This patch reenables BH to release the buffer.

Log messages when the bug is hit:
 kernel BUG at mm/vmalloc.c:2727!
 invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
 CPU: 6 PID: 1462 Comm: NetworkManager Kdump: loaded Tainted: G          I      --------- ---  5.14.0-119.el9.x86_64 #1
 Hardware name: Dell Inc. PowerEdge R740/06WXJT, BIOS 2.8.2 08/27/2020
 RIP: 0010:vunmap+0x2e/0x30
 ...skip...
 Call Trace:
  __iommu_dma_free+0x96/0x100
  efx_nic_free_buffer+0x2b/0x40 [sfc]
  efx_ef10_try_update_nic_stats_vf+0x14a/0x1c0 [sfc]
  efx_ef10_update_stats_vf+0x18/0x40 [sfc]
  efx_start_all+0x15e/0x1d0 [sfc]
  efx_net_open+0x5a/0xe0 [sfc]
  __dev_open+0xe7/0x1a0
  __dev_change_flags+0x1d7/0x240
  dev_change_flags+0x21/0x60
  ...skip...

Fixes: d778819609a2 ("sfc: DMA the VF stats only when requested")
Reported-by: Ma Yuying <yuma@redhat.com>
Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20220713092116.21238-1-ihuguet@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agoMerge branch 'seg6-fix-skb-checksum-for-srh-encapsulation-insertion'
Paolo Abeni [Thu, 14 Jul 2022 08:15:15 +0000 (10:15 +0200)]
Merge branch 'seg6-fix-skb-checksum-for-srh-encapsulation-insertion'

Andrea Mayer says:

====================
seg6: fix skb checksum for SRH encapsulation/insertion

The Linux kernel supports Segment Routing Header (SRH)
encapsulation/insertion operations by providing the capability to: i)
encapsulate a packet in an outer IPv6 header with a specified SRH; ii)
insert a specified SRH directly after the IPv6 header of the packet.
Note that the insertion operation is also referred to as 'injection'.

The two operations are respectively supported by seg6_do_srh_encap() and
seg6_do_srh_inline(), which operate on the skb associated to the packet as
needed (e.g. adding the necessary headers and initializing them, while
taking care to recalculate the skb checksum).

seg6_do_srh_encap() and seg6_do_srh_inline() do not initialize the payload
length of the IPv6 header, which is carried out by the caller functions.
However, this approach causes the corruption of the skb checksum which
needs to be updated only after initialization of headers is completed
(thanks to Paolo Abeni for detecting this issue).

The patchset fixes the skb checksum corruption by moving the IPv6 header
payload length initialization from the callers of seg6_do_srh_encap() and
seg6_do_srh_inline() directly into these functions.

This patchset is organized as follows:
 - patch 1/3, seg6: fix skb checksum evaluation in SRH
   encapsulation/insertion;
    (* SRH encapsulation/insertion available since v4.10)

 - patch 2/3, seg6: fix skb checksum in SRv6 End.B6 and End.B6.Encaps
   behaviors;
    (* SRv6 End.B6 and End.B6.Encaps behaviors available since v4.14)

 - patch 3/3, seg6: bpf: fix skb checksum in bpf_push_seg6_encap();
    (* bpf IPv6 Segment Routing helpers available since v4.18)

====================

Link: https://lore.kernel.org/r/20220712175837.16267-1-andrea.mayer@uniroma2.it
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agoseg6: bpf: fix skb checksum in bpf_push_seg6_encap()
Andrea Mayer [Tue, 12 Jul 2022 17:58:37 +0000 (19:58 +0200)]
seg6: bpf: fix skb checksum in bpf_push_seg6_encap()

Both helper functions bpf_lwt_seg6_action() and bpf_lwt_push_encap() use
the bpf_push_seg6_encap() to encapsulate the packet in an IPv6 with Segment
Routing Header (SRH) or insert an SRH between the IPv6 header and the
payload.
To achieve this result, such helper functions rely on bpf_push_seg6_encap()
which, in turn, leverages seg6_do_srh_{encap,inline}() to perform the
required operation (i.e. encap/inline).

This patch removes the initialization of the IPv6 header payload length
from bpf_push_seg6_encap(), as it is now handled properly by
seg6_do_srh_{encap,inline}() to prevent corruption of the skb checksum.

Fixes: fe94cc290f53 ("bpf: Add IPv6 Segment Routing helpers")
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agoseg6: fix skb checksum in SRv6 End.B6 and End.B6.Encaps behaviors
Andrea Mayer [Tue, 12 Jul 2022 17:58:36 +0000 (19:58 +0200)]
seg6: fix skb checksum in SRv6 End.B6 and End.B6.Encaps behaviors

The SRv6 End.B6 and End.B6.Encaps behaviors rely on functions
seg6_do_srh_{encap,inline}() to, respectively: i) encapsulate the
packet within an outer IPv6 header with the specified Segment Routing
Header (SRH); ii) insert the specified SRH directly after the IPv6
header of the packet.

This patch removes the initialization of the IPv6 header payload length
from the input_action_end_b6{_encap}() functions, as it is now handled
properly by seg6_do_srh_{encap,inline}() to avoid corruption of the skb
checksum.

Fixes: 140f04c33bbc ("ipv6: sr: implement several seg6local actions")
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agoseg6: fix skb checksum evaluation in SRH encapsulation/insertion
Andrea Mayer [Tue, 12 Jul 2022 17:58:35 +0000 (19:58 +0200)]
seg6: fix skb checksum evaluation in SRH encapsulation/insertion

Support for SRH encapsulation and insertion was introduced with
commit 6c8702c60b88 ("ipv6: sr: add support for SRH encapsulation and
injection with lwtunnels"), through the seg6_do_srh_encap() and
seg6_do_srh_inline() functions, respectively.
The former encapsulates the packet in an outer IPv6 header along with
the SRH, while the latter inserts the SRH between the IPv6 header and
the payload. Then, the headers are initialized/updated according to the
operating mode (i.e., encap/inline).
Finally, the skb checksum is calculated to reflect the changes applied
to the headers.

The IPv6 payload length ('payload_len') is not initialized
within seg6_do_srh_{inline,encap}() but is deferred in seg6_do_srh(), i.e.
the caller of seg6_do_srh_{inline,encap}().
However, this operation invalidates the skb checksum, since the
'payload_len' is updated only after the checksum is evaluated.

To solve this issue, the initialization of the IPv6 payload length is
moved from seg6_do_srh() directly into the seg6_do_srh_{inline,encap}()
functions and before the skb checksum update takes place.

Fixes: 6c8702c60b88 ("ipv6: sr: add support for SRH encapsulation and injection with lwtunnels")
Reported-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/all/20220705190727.69d532417be7438b15404ee1@uniroma2.it
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net...
Jakub Kicinski [Thu, 14 Jul 2022 03:16:03 +0000 (20:16 -0700)]
Merge branch '100GbE' of git://git./linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2022-07-12

This series contains updates to ice driver only.

Paul fixes detection of E822 devices for firmware update and changes NVM
read for snapshot creation to be done in chunks as some systems cannot
read the entire NVM in the allotted time.
====================

Link: https://lore.kernel.org/r/20220712164829.7275-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agosfc: fix use after free when disabling sriov
Íñigo Huguet [Tue, 12 Jul 2022 06:26:42 +0000 (08:26 +0200)]
sfc: fix use after free when disabling sriov

Use after free is detected by kfence when disabling sriov. What was read
after being freed was vf->pci_dev: it was freed from pci_disable_sriov
and later read in efx_ef10_sriov_free_vf_vports, called from
efx_ef10_sriov_free_vf_vswitching.

Set the pointer to NULL at release time to not trying to read it later.

Reproducer and dmesg log (note that kfence doesn't detect it every time):
$ echo 1 > /sys/class/net/enp65s0f0np0/device/sriov_numvfs
$ echo 0 > /sys/class/net/enp65s0f0np0/device/sriov_numvfs

 BUG: KFENCE: use-after-free read in efx_ef10_sriov_free_vf_vswitching+0x82/0x170 [sfc]

 Use-after-free read at 0x00000000ff3c1ba5 (in kfence-#224):
  efx_ef10_sriov_free_vf_vswitching+0x82/0x170 [sfc]
  efx_ef10_pci_sriov_disable+0x38/0x70 [sfc]
  efx_pci_sriov_configure+0x24/0x40 [sfc]
  sriov_numvfs_store+0xfe/0x140
  kernfs_fop_write_iter+0x11c/0x1b0
  new_sync_write+0x11f/0x1b0
  vfs_write+0x1eb/0x280
  ksys_write+0x5f/0xe0
  do_syscall_64+0x5c/0x80
  entry_SYSCALL_64_after_hwframe+0x44/0xae

 kfence-#224: 0x00000000edb8ef95-0x00000000671f5ce1, size=2792, cache=kmalloc-4k

 allocated by task 6771 on cpu 10 at 3137.860196s:
  pci_alloc_dev+0x21/0x60
  pci_iov_add_virtfn+0x2a2/0x320
  sriov_enable+0x212/0x3e0
  efx_ef10_sriov_configure+0x67/0x80 [sfc]
  efx_pci_sriov_configure+0x24/0x40 [sfc]
  sriov_numvfs_store+0xba/0x140
  kernfs_fop_write_iter+0x11c/0x1b0
  new_sync_write+0x11f/0x1b0
  vfs_write+0x1eb/0x280
  ksys_write+0x5f/0xe0
  do_syscall_64+0x5c/0x80
  entry_SYSCALL_64_after_hwframe+0x44/0xae

 freed by task 6771 on cpu 12 at 3170.991309s:
  device_release+0x34/0x90
  kobject_cleanup+0x3a/0x130
  pci_iov_remove_virtfn+0xd9/0x120
  sriov_disable+0x30/0xe0
  efx_ef10_pci_sriov_disable+0x57/0x70 [sfc]
  efx_pci_sriov_configure+0x24/0x40 [sfc]
  sriov_numvfs_store+0xfe/0x140
  kernfs_fop_write_iter+0x11c/0x1b0
  new_sync_write+0x11f/0x1b0
  vfs_write+0x1eb/0x280
  ksys_write+0x5f/0xe0
  do_syscall_64+0x5c/0x80
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Fixes: 3c5eb87605e85 ("sfc: create vports for VFs and assign random MAC addresses")
Reported-by: Yanghang Liu <yanghliu@redhat.com>
Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20220712062642.6915-1-ihuguet@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agosmb3: workaround negprot bug in some Samba servers
Steve French [Tue, 12 Jul 2022 05:11:42 +0000 (00:11 -0500)]
smb3: workaround negprot bug in some Samba servers

Mount can now fail to older Samba servers due to a server
bug handling padding at the end of the last negotiate
context (negotiate contexts typically are rounded up to 8
bytes by adding padding if needed). This server bug can
be avoided by switching the order of negotiate contexts,
placing a negotiate context at the end that does not
require padding (prior to the recent netname context fix
this was the case on the client).

Fixes: 73130a7b1ac9 ("smb3: fix empty netname context on secondary channels")
Reported-by: Julian Sikorski <belegdol@gmail.com>
Tested-by: Julian Sikorski <belegdol+github@gmail.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
23 months agovf/remap: return the amount of bytes actually deduplicated
Ansgar Lößer [Wed, 13 Jul 2022 18:51:44 +0000 (20:51 +0200)]
vf/remap: return the amount of bytes actually deduplicated

When using the FIDEDUPRANGE ioctl, in case of success the requested size
is returned. In some cases this might not be the actual amount of bytes
deduplicated.

This change modifies vfs_dedupe_file_range() to report the actual amount
of bytes deduplicated, instead of the requested amount.

Link: https://lore.kernel.org/linux-fsdevel/5548ef63-62f9-4f46-5793-03165ceccacc@tu-darmstadt.de/
Reported-by: Ansgar Lößer <ansgar.loesser@kom.tu-darmstadt.de>
Reported-by: Max Schlecht <max.schlecht@informatik.hu-berlin.de>
Reported-by: Björn Scheuermann <scheuermann@kom.tu-darmstadt.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Darrick J Wong <djwong@kernel.org>
Signed-off-by: Ansgar Lößer <ansgar.loesser@kom.tu-darmstadt.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
23 months agoMerge tag 'cgroup-for-5.19-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 13 Jul 2022 18:47:01 +0000 (11:47 -0700)]
Merge tag 'cgroup-for-5.19-rc6-fixes' of git://git./linux/kernel/git/tj/cgroup

Pull cgroup fix from Tejun Heo:
 "Fix an old and subtle bug in the migration path.

  css_sets are used to track tasks and migrations are tasks moving from
  a group of css_sets to another group of css_sets. The migration path
  pins all source and destination css_sets in the prep stage.

  Unfortunately, it was overloading the same list_head entry to track
  sources and destinations, which got confused for migrations which are
  partially identity leading to use-after-frees.

  Fixed by using dedicated list_heads for tracking sources and
  destinations"

* tag 'cgroup-for-5.19-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: Use separate src/dst nodes when preloading css_sets for migration

23 months agofs/remap: constrain dedupe of EOF blocks
Dave Chinner [Wed, 13 Jul 2022 07:49:15 +0000 (17:49 +1000)]
fs/remap: constrain dedupe of EOF blocks

If dedupe of an EOF block is not constrainted to match against only
other EOF blocks with the same EOF offset into the block, it can
match against any other block that has the same matching initial
bytes in it, even if the bytes beyond EOF in the source file do
not match.

Fix this by constraining the EOF block matching to only match
against other EOF blocks that have identical EOF offsets and data.
This allows "whole file dedupe" to continue to work without allowing
eof blocks to randomly match against partial full blocks with the
same data.

Reported-by: Ansgar Lößer <ansgar.loesser@tu-darmstadt.de>
Fixes: 1383a7ed6749 ("vfs: check file ranges before cloning files")
Link: https://lore.kernel.org/linux-fsdevel/a7c93559-4ba1-df2f-7a85-55a143696405@tu-darmstadt.de/
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
23 months agoima: Fix potential memory leak in ima_init_crypto()
Jianglei Nie [Tue, 12 Jul 2022 01:10:37 +0000 (09:10 +0800)]
ima: Fix potential memory leak in ima_init_crypto()

On failure to allocate the SHA1 tfm, IMA fails to initialize and exits
without freeing the ima_algo_array. Add the missing kfree() for
ima_algo_array to avoid the potential memory leak.

Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Fixes: 6d94809af6b0 ("ima: Allocate and initialize tfm for each PCR bank")
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
23 months agoima: force signature verification when CONFIG_KEXEC_SIG is configured
Coiby Xu [Wed, 13 Jul 2022 07:21:11 +0000 (15:21 +0800)]
ima: force signature verification when CONFIG_KEXEC_SIG is configured

Currently, an unsigned kernel could be kexec'ed when IMA arch specific
policy is configured unless lockdown is enabled. Enforce kernel
signature verification check in the kexec_file_load syscall when IMA
arch specific policy is configured.

Fixes: 99d5cadfde2b ("kexec_file: split KEXEC_VERIFY_SIG into KEXEC_SIG and KEXEC_SIG_FORCE")
Reported-and-suggested-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Coiby Xu <coxu@redhat.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
23 months agonet: sunhme: output link status with a single print.
Nick Bowler [Wed, 13 Jul 2022 01:58:35 +0000 (21:58 -0400)]
net: sunhme: output link status with a single print.

This driver currently prints the link status using four separate
printk calls, which these days gets presented to the user as four
distinct messages, not exactly ideal:

  [   32.582778] eth0: Link is up using
  [   32.582828] internal
  [   32.582837] transceiver at
  [   32.582888] 100Mb/s, Full Duplex.

Restructure the display_link_mode function to use a single netdev_info
call to present all this information as a single message, which is much
nicer:

  [   33.640143] hme 0000:00:01.1 eth0: Link is up using internal transceiver at 100Mb/s, Full Duplex.

The display_forced_link_mode function has a similar structure, so adjust
it in a similar fashion.

Signed-off-by: Nick Bowler <nbowler@draconx.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agor8152: fix accessing unset transport header
Hayes Wang [Wed, 13 Jul 2022 03:31:11 +0000 (11:31 +0800)]
r8152: fix accessing unset transport header

A warning is triggered by commit 66e4c8d95008 ("net: warn if transport
header was not set"). The warning is harmless, because the value from
skb_transport_offset() is only used for skb_is_gso() is true or the
skb->ip_summed is equal to CHECKSUM_PARTIAL.

Fixes: 66e4c8d95008 ("net: warn if transport header was not set")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoMerge tag 'wireless-2022-07-13' of git://git.kernel.org/pub/scm/linux/kernel/git...
David S. Miller [Wed, 13 Jul 2022 13:27:38 +0000 (14:27 +0100)]
Merge tag 'wireless-2022-07-13' of git://git./linux/kernel/git/wireless/wireless

Johannes Berg says:

====================
A small set of fixes for
 * queue selection in mesh/ocb
 * queue handling on interface stop
 * hwsim virtio device vs. some other virtio changes
 * dt-bindings email addresses
 * color collision memory allocation
 * a const variable in rtw88
 * shared SKB transmit in the ethernet format path
 * P2P client port authorization
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: stmmac: fix leaks in probe
Dan Carpenter [Tue, 12 Jul 2022 14:42:25 +0000 (17:42 +0300)]
net: stmmac: fix leaks in probe

These two error paths should clean up before returning.

Fixes: 2bb4b98b60d7 ("net: stmmac: Add Ingenic SoCs MAC support.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: ftgmac100: Hold reference returned by of_get_child_by_name()
Liang He [Tue, 12 Jul 2022 06:14:17 +0000 (14:14 +0800)]
net: ftgmac100: Hold reference returned by of_get_child_by_name()

In ftgmac100_probe(), we should hold the refernece returned by
of_get_child_by_name() and use it to call of_node_put() for
reference balance.

Fixes: 39bfab8844a0 ("net: ftgmac100: Add support for DT phy-handle property")
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoMerge branch 'net-sysctl-races'
David S. Miller [Wed, 13 Jul 2022 11:56:50 +0000 (12:56 +0100)]
Merge branch 'net-sysctl-races'

Kuniyuki Iwashima says:

====================
sysctl: Fix data-races around ipv4_net_table (Roun).

This series fixes data-races around the first 13 knobs and
nexthop_compat_mode in ipv4_net_table.

I will post another patch for three early_demux knobs later,
so the next round will start from ip_default_ttl.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonexthop: Fix data-races around nexthop_compat_mode.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:33 +0000 (17:15 -0700)]
nexthop: Fix data-races around nexthop_compat_mode.

While reading nexthop_compat_mode, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.

Fixes: 4f80116d3df3 ("net: ipv4: add sysctl for nexthop api compatibility mode")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoipv4: Fix data-races around sysctl_ip_dynaddr.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:32 +0000 (17:15 -0700)]
ipv4: Fix data-races around sysctl_ip_dynaddr.

While reading sysctl_ip_dynaddr, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agotcp: Fix a data-race around sysctl_tcp_ecn_fallback.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:31 +0000 (17:15 -0700)]
tcp: Fix a data-race around sysctl_tcp_ecn_fallback.

While reading sysctl_tcp_ecn_fallback, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 492135557dc0 ("tcp: add rfc3168, section 6.1.1.1. fallback")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agotcp: Fix data-races around sysctl_tcp_ecn.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:30 +0000 (17:15 -0700)]
tcp: Fix data-races around sysctl_tcp_ecn.

While reading sysctl_tcp_ecn, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoraw: Fix a data-race around sysctl_raw_l3mdev_accept.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:29 +0000 (17:15 -0700)]
raw: Fix a data-race around sysctl_raw_l3mdev_accept.

While reading sysctl_raw_l3mdev_accept, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 6897445fb194 ("net: provide a sysctl raw_l3mdev_accept for raw socket lookup with VRFs")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoicmp: Fix a data-race around sysctl_icmp_ratemask.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:28 +0000 (17:15 -0700)]
icmp: Fix a data-race around sysctl_icmp_ratemask.

While reading sysctl_icmp_ratemask, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoicmp: Fix a data-race around sysctl_icmp_ratelimit.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:27 +0000 (17:15 -0700)]
icmp: Fix a data-race around sysctl_icmp_ratelimit.

While reading sysctl_icmp_ratelimit, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoicmp: Fix a data-race around sysctl_icmp_errors_use_inbound_ifaddr.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:26 +0000 (17:15 -0700)]
icmp: Fix a data-race around sysctl_icmp_errors_use_inbound_ifaddr.

While reading sysctl_icmp_errors_use_inbound_ifaddr, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its reader.

Fixes: 1c2fb7f93cb2 ("[IPV4]: Sysctl configurable icmp error source address.")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoicmp: Fix a data-race around sysctl_icmp_ignore_bogus_error_responses.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:25 +0000 (17:15 -0700)]
icmp: Fix a data-race around sysctl_icmp_ignore_bogus_error_responses.

While reading sysctl_icmp_ignore_bogus_error_responses, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoicmp: Fix a data-race around sysctl_icmp_echo_ignore_broadcasts.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:24 +0000 (17:15 -0700)]
icmp: Fix a data-race around sysctl_icmp_echo_ignore_broadcasts.

While reading sysctl_icmp_echo_ignore_broadcasts, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoicmp: Fix data-races around sysctl_icmp_echo_enable_probe.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:23 +0000 (17:15 -0700)]
icmp: Fix data-races around sysctl_icmp_echo_enable_probe.

While reading sysctl_icmp_echo_enable_probe, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its readers.

Fixes: d329ea5bd884 ("icmp: add response to RFC 8335 PROBE messages")
Fixes: 1fd07f33c3ea ("ipv6: ICMPV6: add response to ICMPV6 RFC 8335 PROBE messages")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoicmp: Fix a data-race around sysctl_icmp_echo_ignore_all.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:22 +0000 (17:15 -0700)]
icmp: Fix a data-race around sysctl_icmp_echo_ignore_all.

While reading sysctl_icmp_echo_ignore_all, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agotcp: Fix a data-race around sysctl_max_tw_buckets.
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:21 +0000 (17:15 -0700)]
tcp: Fix a data-race around sysctl_max_tw_buckets.

While reading sysctl_max_tw_buckets, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agosysctl: Fix data-races in proc_dointvec_ms_jiffies().
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:20 +0000 (17:15 -0700)]
sysctl: Fix data-races in proc_dointvec_ms_jiffies().

A sysctl variable is accessed concurrently, and there is always a chance
of data-race.  So, all readers and writers need some basic protection to
avoid load/store-tearing.

This patch changes proc_dointvec_ms_jiffies() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side.  For now,
proc_dointvec_ms_jiffies() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agosysctl: Fix data-races in proc_dou8vec_minmax().
Kuniyuki Iwashima [Tue, 12 Jul 2022 00:15:19 +0000 (17:15 -0700)]
sysctl: Fix data-races in proc_dou8vec_minmax().

A sysctl variable is accessed concurrently, and there is always a chance
of data-race.  So, all readers and writers need some basic protection to
avoid load/store-tearing.

This patch changes proc_dou8vec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side.  For now,
proc_dou8vec_minmax() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.

Fixes: cb9444130662 ("sysctl: add proc_dou8vec_minmax()")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop
Meng Tang [Wed, 13 Jul 2022 09:41:33 +0000 (17:41 +0800)]
ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop

The headset on this machine is not defined, after applying the quirk
ALC256_FIXUP_ASUS_HEADSET_MIC, the headset-mic works well

Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220713094133.9894-1-tangmeng@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
23 months agoALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221
Meng Tang [Wed, 13 Jul 2022 06:33:32 +0000 (14:33 +0800)]
ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221

On a HP 288 Pro G2 MT (X9W02AV), the front mic could not be detected.
In order to get it working, the pin configuration needs to be set
correctly, and the ALC221_FIXUP_HP_288PRO_MIC_NO_PRESENCE fixup needs
to be applied.

Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220713063332.30095-1-tangmeng@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
23 months agoALSA: hda/realtek: fix mute/micmute LEDs for HP machines
Jeremy Szu [Wed, 13 Jul 2022 02:27:04 +0000 (10:27 +0800)]
ALSA: hda/realtek: fix mute/micmute LEDs for HP machines

The HP ProBook 440/450 G9 and EliteBook 640/650 G9 have multiple
motherboard design and they are using different subsystem ID of audio
codec. Add the same quirk for other MBs.

Signed-off-by: Jeremy Szu <jeremy.szu@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220713022706.22892-1-jeremy.szu@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
23 months agoMerge branch 'bnxt_en-5-bug-fixes'
Jakub Kicinski [Wed, 13 Jul 2022 03:36:00 +0000 (20:36 -0700)]
Merge branch 'bnxt_en-5-bug-fixes'

Michael Chan says:

====================
bnxt_en: 5 Bug fixes

This patchset fixes various issues, including SRIOV error unwinding,
one error recovery path, live patch reporting, XDP transmit path,
and PHC clock reading.
====================

Link: https://lore.kernel.org/r/1657592778-12730-1-git-send-email-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agobnxt_en: Fix bnxt_refclk_read()
Pavan Chebbi [Tue, 12 Jul 2022 02:26:18 +0000 (22:26 -0400)]
bnxt_en: Fix bnxt_refclk_read()

The upper 32-bit PHC register is not latched when reading the lower
32-bit PHC register.  Current code leaves a small window where we may
not read correct higher order bits if the lower order bits are just about
to wrap around.

This patch fixes this by reading higher order bits twice and makes
sure that final value is correctly paired with its lower 32 bits.

Fixes: 30e96f487f64 ("bnxt_en: Do not read the PTP PHC during chip reset")
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agobnxt_en: Fix and simplify XDP transmit path
Michael Chan [Tue, 12 Jul 2022 02:26:17 +0000 (22:26 -0400)]
bnxt_en: Fix and simplify XDP transmit path

Fix the missing length hint in the TX BD for the XDP transmit path.  The
length hint is required on legacy chips.

Also, simplify the code by eliminating the first_buf local variable.
tx_buf contains the same value.  The opaque value only needs to be set
on the first BD.  Fix this also for correctness.

Fixes: a7559bc8c17c ("bnxt: support transmit and free of aggregation buffers")
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agobnxt_en: fix livepatch query
Vikas Gupta [Tue, 12 Jul 2022 02:26:16 +0000 (22:26 -0400)]
bnxt_en: fix livepatch query

In the livepatch query fw_target BNXT_FW_SRT_PATCH is
applicable for P5 chips only.

Fixes: 3c4153394e2c ("bnxt_en: implement firmware live patching")
Reviewed-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agobnxt_en: Fix bnxt_reinit_after_abort() code path
Michael Chan [Tue, 12 Jul 2022 02:26:15 +0000 (22:26 -0400)]
bnxt_en: Fix bnxt_reinit_after_abort() code path

bnxt_reinit_after_abort() is called during ifup when a previous
FW reset sequence has aborted or a previous ifup has failed after
detecting FW reset.  In all cases, it is safe to assume that a
previous FW reset has completed and the driver may not have fully
reinitialized.

Prior to this patch, it is assumed that the
FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE flag will always be
set by the firmware in bnxt_hwrm_if_change().  This may not be true if
the driver has already attempted to register with the firmware.  The
firmware may not set the RESET_DONE flag again after the driver has
registered, assuming that the driver has seen the flag already.

Fix it to always go through the FW reset initialization path if
the BNXT_STATE_FW_RESET_DET flag is set.  This flag is always set
by the driver after successfully going through bnxt_reinit_after_abort().

Fixes: 6882c36cf82e ("bnxt_en: attempt to reinitialize after aborted reset")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agobnxt_en: reclaim max resources if sriov enable fails
Kashyap Desai [Tue, 12 Jul 2022 02:26:14 +0000 (22:26 -0400)]
bnxt_en: reclaim max resources if sriov enable fails

If bnxt_sriov_enable() fails after some resources have been reserved
for the VFs, the current code is not unwinding properly and the
reserved resources become unavailable afterwards.  Fix it by
properly unwinding with a call to bnxt_hwrm_func_qcaps() to
reset all maximum resources.

Also, add the missing bnxt_ulp_sriov_cfg() call to let the RDMA
driver know to abort.

Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoMerge tag 'trace-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Tue, 12 Jul 2022 23:17:40 +0000 (16:17 -0700)]
Merge tag 'trace-v5.19-rc5' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Fixes and minor clean ups for tracing:

   - Fix memory leak by reverting what was thought to be a double free.

     A static tool had gave a false positive that a double free was
     possible in the error path, but it was actually a different
     location that confused the static analyzer (and those of us that
     reviewed it).

   - Move use of static buffers by ftrace_dump() to a location that can
     be used by kgdb's ftdump(), as it needs it for the same reasons.

   - Clarify in the Kconfig description that function tracing has
     negligible impact on x86, but may have a bit bigger impact on other
     architectures.

   - Remove unnecessary extra semicolon in trace event.

   - Make a local variable static that is used in the fprobes sample

   - Use KSYM_NAME_LEN for length of function in kprobe sample and get
     rid of unneeded macro for the same purpose"

* tag 'trace-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  samples: Use KSYM_NAME_LEN for kprobes
  fprobe/samples: Make sample_probe static
  blk-iocost: tracing: atomic64_read(&ioc->vtime_rate) is assigned an extra semicolon
  ftrace: Be more specific about arch impact when function tracer is enabled
  tracing: Fix sleeping while atomic in kdb ftdump
  tracing/histograms: Fix memory leak problem

23 months agosamples: Use KSYM_NAME_LEN for kprobes
Tiezhu Yang [Wed, 8 Jun 2022 01:23:22 +0000 (09:23 +0800)]
samples: Use KSYM_NAME_LEN for kprobes

It is better and enough to use KSYM_NAME_LEN for kprobes
in samples, no need to define and use the other values.

Link: https://lkml.kernel.org/r/1654651402-21552-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
23 months agofprobe/samples: Make sample_probe static
sunliming [Mon, 6 Jun 2022 07:56:59 +0000 (15:56 +0800)]
fprobe/samples: Make sample_probe static

This symbol is not used outside of fprobe_example.c, so marks it static.

Fixes the following warning:

sparse warnings: (new ones prefixed by >>)
>> samples/fprobe/fprobe_example.c:23:15: sparse: sparse: symbol 'sample_probe'
was not declared. Should it be static?

Link: https://lkml.kernel.org/r/20220606075659.674556-1-sunliming@kylinos.cn
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
23 months agoblk-iocost: tracing: atomic64_read(&ioc->vtime_rate) is assigned an extra semicolon
Li kunyu [Wed, 29 Jun 2022 03:00:13 +0000 (11:00 +0800)]
blk-iocost: tracing: atomic64_read(&ioc->vtime_rate) is assigned an extra semicolon

Remove extra semicolon.

Link: https://lkml.kernel.org/r/20220629030013.10362-1-kunyu@nfschina.com
Cc: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Li kunyu <kunyu@nfschina.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
23 months agoftrace: Be more specific about arch impact when function tracer is enabled
Steven Rostedt (Google) [Wed, 6 Jul 2022 20:12:31 +0000 (16:12 -0400)]
ftrace: Be more specific about arch impact when function tracer is enabled

It was brought up that on ARMv7, that because the FUNCTION_TRACER does not
use nops to keep function tracing disabled because of the use of a link
register, it does have some performance impact.

The start of functions when -pg is used to compile the kernel is:

push    {lr}
bl      8010e7c0 <__gnu_mcount_nc>

When function tracing is tuned off, it becomes:

push    {lr}
add   sp, sp, #4

Which just puts the stack back to its normal location. But these two
instructions at the start of every function does incur some overhead.

Be more honest in the Kconfig FUNCTION_TRACER description and specify that
the overhead being in the noise was x86 specific, but other architectures
may vary.

Link: https://lore.kernel.org/all/20220705105416.GE5208@pengutronix.de/
Link: https://lkml.kernel.org/r/20220706161231.085a83da@gandalf.local.home
Reported-by: Sascha Hauer <sha@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
23 months agotracing: Fix sleeping while atomic in kdb ftdump
Douglas Anderson [Sat, 9 Jul 2022 00:09:52 +0000 (17:09 -0700)]
tracing: Fix sleeping while atomic in kdb ftdump

If you drop into kdb and type "ftdump" you'll get a sleeping while
atomic warning from memory allocation in trace_find_next_entry().

This appears to have been caused by commit ff895103a84a ("tracing:
Save off entry when peeking at next entry"), which added the
allocation in that path. The problematic commit was already fixed by
commit 8e99cf91b99b ("tracing: Do not allocate buffer in
trace_find_next_entry() in atomic") but that fix missed the kdb case.

The fix here is easy: just move the assignment of the static buffer to
the place where it should have been to begin with:
trace_init_global_iter(). That function is called in two places, once
is right before the assignment of the static buffer added by the
previous fix and once is in kdb.

Note that it appears that there's a second static buffer that we need
to assign that was added in commit efbbdaa22bb7 ("tracing: Show real
address for trace event arguments"), so we'll move that too.

Link: https://lkml.kernel.org/r/20220708170919.1.I75844e5038d9425add2ad853a608cb44bb39df40@changeid
Fixes: ff895103a84a ("tracing: Save off entry when peeking at next entry")
Fixes: efbbdaa22bb7 ("tracing: Show real address for trace event arguments")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
23 months agotracing/histograms: Fix memory leak problem
Zheng Yejian [Mon, 11 Jul 2022 01:47:31 +0000 (09:47 +0800)]
tracing/histograms: Fix memory leak problem

This reverts commit 46bbe5c671e06f070428b9be142cc4ee5cedebac.

As commit 46bbe5c671e0 ("tracing: fix double free") said, the
"double free" problem reported by clang static analyzer is:
  > In parse_var_defs() if there is a problem allocating
  > var_defs.expr, the earlier var_defs.name is freed.
  > This free is duplicated by free_var_defs() which frees
  > the rest of the list.

However, if there is a problem allocating N-th var_defs.expr:
  + in parse_var_defs(), the freed 'earlier var_defs.name' is
    actually the N-th var_defs.name;
  + then in free_var_defs(), the names from 0th to (N-1)-th are freed;

                        IF ALLOCATING PROBLEM HAPPENED HERE!!! -+
                                                                 \
                                                                  |
          0th           1th                 (N-1)-th      N-th    V
          +-------------+-------------+-----+-------------+-----------
var_defs: | name | expr | name | expr | ... | name | expr | name | ///
          +-------------+-------------+-----+-------------+-----------

These two frees don't act on same name, so there was no "double free"
problem before. Conversely, after that commit, we get a "memory leak"
problem because the above "N-th var_defs.name" is not freed.

If enable CONFIG_DEBUG_KMEMLEAK and inject a fault at where the N-th
var_defs.expr allocated, then execute on shell like:
  $ echo 'hist:key=call_site:val=$v1,$v2:v1=bytes_req,v2=bytes_alloc' > \
/sys/kernel/debug/tracing/events/kmem/kmalloc/trigger

Then kmemleak reports:
  unreferenced object 0xffff8fb100ef3518 (size 8):
    comm "bash", pid 196, jiffies 4295681690 (age 28.538s)
    hex dump (first 8 bytes):
      76 31 00 00 b1 8f ff ff                          v1......
    backtrace:
      [<0000000038fe4895>] kstrdup+0x2d/0x60
      [<00000000c99c049a>] event_hist_trigger_parse+0x206f/0x20e0
      [<00000000ae70d2cc>] trigger_process_regex+0xc0/0x110
      [<0000000066737a4c>] event_trigger_write+0x75/0xd0
      [<000000007341e40c>] vfs_write+0xbb/0x2a0
      [<0000000087fde4c2>] ksys_write+0x59/0xd0
      [<00000000581e9cdf>] do_syscall_64+0x3a/0x80
      [<00000000cf3b065c>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

Link: https://lkml.kernel.org/r/20220711014731.69520-1-zhengyejian1@huawei.com
Cc: stable@vger.kernel.org
Fixes: 46bbe5c671e0 ("tracing: fix double free")
Reported-by: Hulk Robot <hulkci@huawei.com>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2 years agoice: change devlink code to read NVM in blocks
Paul M Stillwell Jr [Wed, 8 Jun 2022 21:48:32 +0000 (14:48 -0700)]
ice: change devlink code to read NVM in blocks

When creating a snapshot of the NVM the driver needs to read the entire
contents from the NVM and store it. The NVM reads are protected by a lock
that is shared between the driver and the firmware.

If the driver takes too long to read the entire NVM (which can happen on
some systems) then the firmware could reclaim the lock and cause subsequent
reads from the driver to fail.

We could fix this by increasing the timeout that we pass to the firmware,
but we could end up in the same situation again if the system is slow.
Instead have the driver break the reading of the NVM into blocks that are
small enough that we have confidence that the read will complete within the
timeout time, but large enough not to cause significant AQ overhead.

Fixes: dce730f17825 ("ice: add a devlink region for dumping NVM contents")
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agoice: handle E822 generic device ID in PLDM header
Paul M Stillwell Jr [Wed, 8 Jun 2022 21:09:52 +0000 (14:09 -0700)]
ice: handle E822 generic device ID in PLDM header

The driver currently presumes that the record data in the PLDM header
of the firmware image will match the device ID of the running device.
This is true for E810 devices. It appears that for E822 devices that
this is not guaranteed to be true.

Fix this by adding a check for the generic E822 device.

Fixes: d69ea414c9b4 ("ice: implement device flash update via devlink")
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agoMerge tag 'ovl-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszer...
Linus Torvalds [Tue, 12 Jul 2022 15:59:35 +0000 (08:59 -0700)]
Merge tag 'ovl-fixes-5.19-rc7' of git://git./linux/kernel/git/mszeredi/vfs

Pull overlayfs fix from Miklos Szeredi:
 "Add a temporary fix for posix acls on idmapped mounts introduced in
  this cycle. A proper fix will be added in the next cycle"

* tag 'ovl-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: turn off SB_POSIXACL with idmapped layers temporarily

2 years agoMerge tag 'drm-fixes-2022-07-12' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Tue, 12 Jul 2022 15:52:15 +0000 (08:52 -0700)]
Merge tag 'drm-fixes-2022-07-12' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "I see you picked up one of the fbdev fixes, this is the other stuff
  that was queued up last week.

  A bit of a scattering of fixes, three for i915, one amdgpu, and a
  couple of panfrost, rockchip, panel and bridge ones.

  amdgpu:
   - Hibernation fix

  dma-buf:
   - fix use after free of fence

  i915:
   - Fix a possible refcount leak in DP MST connector (Hangyu)
   - Fix on loading guc on ADL-N (Daniele)
   - Fix vm use-after-free in vma destruction (Thomas)

  bridge:
   - fsl-ldb : 3 LVDS modesetting fixes

  rockchip:
   - iommu domain fix

  panfrost:
   - fix memory corruption
   - error path fix

  panel:
   - orientation quirk fix for Yoga tablet 2

  ssd130x:
   - fix pre-charge period setting"

* tag 'drm-fixes-2022-07-12' of git://anongit.freedesktop.org/drm/drm:
  drm/ssd130x: Fix pre-charge period setting
  dma-buf: Fix one use-after-free of fence
  drm/i915: Fix vm use-after-free in vma destruction
  drm/i915/guc: ADL-N should use the same GuC FW as ADL-S
  drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector()
  drm/amdgpu/display: disable prefer_shadow for generic fb helpers
  drm/amdgpu: keep fbdev buffers pinned during suspend
  drm/panfrost: Fix shrinker list corruption by madvise IOCTL
  drm/panfrost: Put mapping instead of shmem obj on panfrost_mmu_map_fault_addr() error
  drm/rockchip: Detach from ARM DMA domain in attach_device
  drm/bridge: fsl-ldb: Drop DE signal polarity inversion
  drm/bridge: fsl-ldb: Enable split mode for LVDS dual link
  drm/bridge: fsl-ldb: Fix mode clock rate validation
  drm/aperture: Run fbdev removal before internal helpers
  drm: panel-orientation-quirks: Add quirk for the Lenovo Yoga Tablet 2 830

2 years agoMerge tag 'x86_bugs_retbleed' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Linus Torvalds [Tue, 12 Jul 2022 15:40:09 +0000 (08:40 -0700)]
Merge tag 'x86_bugs_retbleed' of git://git./linux/kernel/git/tip/tip

Pull lockdep fix for x86 retbleed from Borislav Petkov:

 - Fix lockdep complaint for __static_call_fixup()

* tag 'x86_bugs_retbleed' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/static_call: Serialize __static_call_fixup() properly

2 years agocifs: remove unnecessary locking of chan_lock while freeing session
Shyam Prasad N [Wed, 6 Jul 2022 14:29:12 +0000 (14:29 +0000)]
cifs: remove unnecessary locking of chan_lock while freeing session

In cifs_put_smb_ses, when we're freeing the last ref count to
the session, we need to free up each channel. At this point,
it is unnecessary to take chan_lock, since we have the last
reference to the ses.

Picking up this lock also introduced a deadlock because it calls
cifs_put_tcp_ses, which locks cifs_tcp_ses_lock.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Acked-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agocifs: fix race condition with delayed threads
Shyam Prasad N [Tue, 5 Jul 2022 11:16:24 +0000 (11:16 +0000)]
cifs: fix race condition with delayed threads

On failure to create a new channel, first cancel the
delayed threads, which could try to search for this
channel, and not find it.

The other option was to put the tcp session for the
channel first, before decrementing chan_count. But
that would leave a reference to the tcp session, when
it has been freed already.

So going with the former option and cancelling the
delayed works first, before rolling back the channel.

Fixes: aa45dadd34e4 ("cifs: change iface_list from array to sorted linked list")
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Acked-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agox86/static_call: Serialize __static_call_fixup() properly
Thomas Gleixner [Tue, 12 Jul 2022 12:01:06 +0000 (14:01 +0200)]
x86/static_call: Serialize __static_call_fixup() properly

__static_call_fixup() invokes __static_call_transform() without holding
text_mutex, which causes lockdep to complain in text_poke_bp().

Adding the proper locking cures that, but as this is either used during
early boot or during module finalizing, it's not required to use
text_poke_bp(). Add an argument to __static_call_transform() which tells
it to use text_poke_early() for it.

Fixes: ee88d363d156 ("x86,static_call: Use alternative RET encoding")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
2 years agonet: ipv4: fix clang -Wformat warnings
Justin Stitt [Sat, 9 Jul 2022 00:37:04 +0000 (17:37 -0700)]
net: ipv4: fix clang -Wformat warnings

When building with Clang we encounter these warnings:
| net/ipv4/ah4.c:513:4: error: format specifies type 'unsigned short' but
| the argument has type 'int' [-Werror,-Wformat]
| aalg_desc->uinfo.auth.icv_fullbits / 8);
-
| net/ipv4/esp4.c:1114:5: error: format specifies type 'unsigned short'
| but the argument has type 'int' [-Werror,-Wformat]
| aalg_desc->uinfo.auth.icv_fullbits / 8);

`aalg_desc->uinfo.auth.icv_fullbits` is a u16 but due to default
argument promotion becomes an int.

Variadic functions (printf-like) undergo default argument promotion.
Documentation/core-api/printk-formats.rst specifically recommends using
the promoted-to-type's format flag.

As per C11 6.3.1.1:
(https://www.open-std.org/jtc1/sc22/wg14/www/docs/n1548.pdf) `If an int
can represent all values of the original type ..., the value is
converted to an int; otherwise, it is converted to an unsigned int.
These are called the integer promotions.` Thus it makes sense to change
%hu to %d not only to follow this standard but to suppress the warning
as well.

Link: https://github.com/ClangBuiltLinux/linux/issues/378
Signed-off-by: Justin Stitt <justinstitt@google.com>
Suggested-by: Joe Perches <joe@perches.com>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2 years agonet: marvell: prestera: fix missed deinit sequence
Yevhen Orlov [Sun, 10 Jul 2022 12:20:21 +0000 (15:20 +0300)]
net: marvell: prestera: fix missed deinit sequence

Add unregister_fib_notifier as rollback of register_fib_notifier.

Fixes: 4394fbcb78cf ("net: marvell: prestera: handle fib notifications")
Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
Link: https://lore.kernel.org/r/20220710122021.7642-1-yevhen.orlov@plvision.eu
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2 years agoALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671
Meng Tang [Tue, 12 Jul 2022 09:22:22 +0000 (17:22 +0800)]
ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671

On a HP 288 Pro G6, the front mic could not be detected.In order to
get it working, the pin configuration needs to be set correctly, and
the ALC671_FIXUP_HP_HEADSET_MIC2 fixup needs to be applied.

Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220712092222.21738-1-tangmeng@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2 years agoALSA: hda - Add fixup for Dell Latitidue E5430
Meng Tang [Tue, 12 Jul 2022 06:00:05 +0000 (14:00 +0800)]
ALSA: hda - Add fixup for Dell Latitidue E5430

Another Dell model, another fixup entry: Latitude E5430 needs the same
fixup as other Latitude E series as workaround for noise problems.

Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220712060005.20176-1-tangmeng@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2 years agoselftest: net: add tun to .gitignore
Jakub Kicinski [Sat, 9 Jul 2022 02:41:41 +0000 (19:41 -0700)]
selftest: net: add tun to .gitignore

Add missing .gitignore entry.

Fixes: 839b92fede7b ("selftest: tun: add test for NAPI dismantle")
Link: https://lore.kernel.org/r/20220709024141.321683-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'x86_bugs_retbleed' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Linus Torvalds [Tue, 12 Jul 2022 01:15:25 +0000 (18:15 -0700)]
Merge tag 'x86_bugs_retbleed' of git://git./linux/kernel/git/tip/tip

Pull x86 retbleed fixes from Borislav Petkov:
 "Just when you thought that all the speculation bugs were addressed and
  solved and the nightmare is complete, here's the next one: speculating
  after RET instructions and leaking privileged information using the
  now pretty much classical covert channels.

  It is called RETBleed and the mitigation effort and controlling
  functionality has been modelled similar to what already existing
  mitigations provide"

* tag 'x86_bugs_retbleed' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits)
  x86/speculation: Disable RRSBA behavior
  x86/kexec: Disable RET on kexec
  x86/bugs: Do not enable IBPB-on-entry when IBPB is not supported
  x86/entry: Move PUSH_AND_CLEAR_REGS() back into error_entry
  x86/bugs: Add Cannon lake to RETBleed affected CPU list
  x86/retbleed: Add fine grained Kconfig knobs
  x86/cpu/amd: Enumerate BTC_NO
  x86/common: Stamp out the stepping madness
  KVM: VMX: Prevent RSB underflow before vmenter
  x86/speculation: Fill RSB on vmexit for IBRS
  KVM: VMX: Fix IBRS handling after vmexit
  KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS
  KVM: VMX: Convert launched argument to flags
  KVM: VMX: Flatten __vmx_vcpu_run()
  objtool: Re-add UNWIND_HINT_{SAVE_RESTORE}
  x86/speculation: Remove x86_spec_ctrl_mask
  x86/speculation: Use cached host SPEC_CTRL value for guest entry/exit
  x86/speculation: Fix SPEC_CTRL write on SMT state change
  x86/speculation: Fix firmware entry SPEC_CTRL handling
  x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n
  ...

2 years agoMerge tag 'drm-misc-fixes-2022-07-07-1' of ssh://git.freedesktop.org/git/drm/drm...
Dave Airlie [Tue, 12 Jul 2022 00:43:49 +0000 (10:43 +1000)]
Merge tag 'drm-misc-fixes-2022-07-07-1' of ssh://git.freedesktop.org/git/drm/drm-misc into drm-fixes

Three mode setting fixes for fsl-ldb, a fbdev removal use-after-free fix,
a dma-buf fence use-after-free fix, a DMA setup fix for rockchip, an error
path fix and memory corruption fix for panfrost and one more orientation
quirk

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220708054306.wr6jcfdunuypftbq@houat
2 years agoMerge tag 'drm-intel-fixes-2022-07-07' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Tue, 12 Jul 2022 00:40:24 +0000 (10:40 +1000)]
Merge tag 'drm-intel-fixes-2022-07-07' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix a possible refcount leak in DP MST connector (Hangyu)
- Fix on loading guc on ADL-N (Daniele)
- Fix vm use-after-free in vma destruction (Thomas)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YsbbgWnLTR8fr4lj@intel.com
2 years agoMerge tag 'amd-drm-fixes-5.19-2022-07-06' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Tue, 12 Jul 2022 00:34:42 +0000 (10:34 +1000)]
Merge tag 'amd-drm-fixes-5.19-2022-07-06' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-5.19-2022-07-06:

amdgpu:
- Hibernation fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220707024421.5773-1-alexander.deucher@amd.com
2 years agoMerge tag 'for-5.19-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Mon, 11 Jul 2022 21:41:44 +0000 (14:41 -0700)]
Merge tag 'for-5.19-rc6-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A more fixes that seem to me to be important enough to get merged
  before release:

   - in zoned mode, fix leak of a structure when reading zone info, this
     happens on normal path so this can be significant

   - in zoned mode, revert an optimization added in 5.19-rc1 to finish a
     zone when the capacity is full, but this is not reliable in all
     cases

   - try to avoid short reads for compressed data or inline files when
     it's a NOWAIT read, applications should handle that but there are
     two, qemu and mariadb, that are affected"

* tag 'for-5.19-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: zoned: drop optimization of zone finish
  btrfs: zoned: fix a leaked bioc in read_zone_info
  btrfs: return -EAGAIN for NOWAIT dio reads/writes on compressed and inline extents

2 years agoMerge tags 'free-mq_sysctls-for-v5.19' and 'ptrace_unfreeze_fix-for-v5.19' of git...
Linus Torvalds [Mon, 11 Jul 2022 21:33:41 +0000 (14:33 -0700)]
Merge tags 'free-mq_sysctls-for-v5.19' and 'ptrace_unfreeze_fix-for-v5.19' of git://git./linux/kernel/git/ebiederm/user-namespace

Pull ipc namespace fix from Eric Biederman:
 "This fixes a bug with error handling if ipc creation fails that was
  reported by syzbot"

For completeness, this also pulls the ptrace_unfreeze_fix tag that
contains the original version of one of the hotfixes that I manually
applied earlier so that it would be fixed in rc6.

* tag 'free-mq_sysctls-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  ipc: Free mq_sysctls if ipc namespace creation failed

* tag 'ptrace_unfreeze_fix-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  ptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced()

2 years agolockd: fix nlm_close_files
Jeff Layton [Mon, 11 Jul 2022 18:30:14 +0000 (14:30 -0400)]
lockd: fix nlm_close_files

This loop condition tries a bit too hard to be clever. Just test for
the two indices we care about explicitly.

Cc: J. Bruce Fields <bfields@fieldses.org>
Fixes: 7f024fcd5c97 ("Keep read and write fds with each nlm_file")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoMerge tag 'mm-hotfixes-stable-2022-07-11' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Mon, 11 Jul 2022 19:49:56 +0000 (12:49 -0700)]
Merge tag 'mm-hotfixes-stable-2022-07-11' of git://git./linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
 "Mainly MM fixes. About half for issues which were introduced after
  5.18 and the remainder for longer-term issues"

* tag 'mm-hotfixes-stable-2022-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm: split huge PUD on wp_huge_pud fallback
  nilfs2: fix incorrect masking of permission flags for symlinks
  mm/rmap: fix dereferencing invalid subpage pointer in try_to_migrate_one()
  riscv/mm: fix build error while PAGE_TABLE_CHECK enabled without MMU
  Documentation: highmem: use literal block for code example in highmem.h comment
  mm: sparsemem: fix missing higher order allocation splitting
  mm/damon: use set_huge_pte_at() to make huge pte old
  sh: convert nommu io{re,un}map() to static inline functions
  mm: userfaultfd: fix UFFDIO_CONTINUE on fallocated shmem pages

2 years agolockd: set fl_owner when unlocking files
Jeff Layton [Mon, 11 Jul 2022 18:30:13 +0000 (14:30 -0400)]
lockd: set fl_owner when unlocking files

Unlocking a POSIX lock on an inode with vfs_lock_file only works if
the owner matches. Ensure we set it in the request.

Cc: J. Bruce Fields <bfields@fieldses.org>
Fixes: 7f024fcd5c97 ("Keep read and write fds with each nlm_file")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoMerge tag 'modules-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof...
Linus Torvalds [Mon, 11 Jul 2022 19:39:12 +0000 (12:39 -0700)]
Merge tag 'modules-5.19-rc7' of git://git./linux/kernel/git/mcgrof/linux

Pull module fixes from Luis Chamberlain:
 "Although most of the move of code in in v5.19-rc1 should have not
  introduced a regression patch review on one of the file changes
  captured a checkpatch warning which advised to use strscpy() and it
  caused a buffer overflow when an incorrect length is passed.

  Another change which checkpatch complained about was an odd RCU usage,
  but that was properly addressed in a separate patch to the move by
  Aaron. That caused a regression with PREEMPT_RT=y due to an unbounded
  latency.

  This series fixes both and adjusts documentation which we forgot to do
  for the move"

* tag 'modules-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
  module: kallsyms: Ensure preemption in add_kallsyms() with PREEMPT_RT
  doc: module: update file references
  module: Fix "warning: variable 'exit' set but not used"
  module: Fix selfAssignment cppcheck warning
  modules: Fix corruption of /proc/kallsyms

2 years agoNFSD: Decode NFSv4 birth time attribute
Chuck Lever [Sun, 10 Jul 2022 18:46:04 +0000 (14:46 -0400)]
NFSD: Decode NFSv4 birth time attribute

NFSD has advertised support for the NFSv4 time_create attribute
since commit e377a3e698fb ("nfsd: Add support for the birth time
attribute").

Igor Mammedov reports that Mac OS clients attempt to set the NFSv4
birth time attribute via OPEN(CREATE) and SETATTR if the server
indicates that it supports it, but since the above commit was
merged, those attempts now fail.

Table 5 in RFC 8881 lists the time_create attribute as one that can
be both set and retrieved, but the above commit did not add server
support for clients to provide a time_create attribute. IMO that's
a bug in our implementation of the NFSv4 protocol, which this commit
addresses.

Whether NFSD silently ignores the new birth time or actually sets it
is another matter. I haven't found another filesystem service in the
Linux kernel that enables users or clients to modify a file's birth
time attribute.

This commit reflects my (perhaps incorrect) understanding of whether
Linux users can set a file's birth time. NFSD will now recognize a
time_create attribute but it ignores its value. It clears the
time_create bit in the returned attribute bitmask to indicate that
the value was not used.

Reported-by: Igor Mammedov <imammedo@redhat.com>
Fixes: e377a3e698fb ("nfsd: Add support for the birth time attribute")
Tested-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agomodule: kallsyms: Ensure preemption in add_kallsyms() with PREEMPT_RT
Aaron Tomlin [Mon, 11 Jul 2022 17:17:19 +0000 (18:17 +0100)]
module: kallsyms: Ensure preemption in add_kallsyms() with PREEMPT_RT

The commit 08126db5ff73 ("module: kallsyms: Fix suspicious rcu usage")
under PREEMPT_RT=y, disabling preemption introduced an unbounded
latency since the loop is not fixed. This change caused a regression
since previously preemption was not disabled and we would dereference
RCU-protected pointers explicitly. That being said, these pointers
cannot change.

Before kallsyms-specific data is prepared/or set-up, we ensure that
the unformed module is known to be unique i.e. does not already exist
(see load_module()). Therefore, we can fix this by using the common and
more appropriate RCU flavour as this section of code can be safely
preempted.

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Fixes: 08126db5ff73 ("module: kallsyms: Fix suspicious rcu usage")
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2 years agoMerge tag 'vfio-v5.19-rc7' of https://github.com/awilliam/linux-vfio
Linus Torvalds [Mon, 11 Jul 2022 17:02:03 +0000 (10:02 -0700)]
Merge tag 'vfio-v5.19-rc7' of https://github.com/awilliam/linux-vfio

Pull VFIO fix from Alex Williamson:

 - Move IOMMU test to unbreak no-iommu support (Jason Gunthorpe)

* tag 'vfio-v5.19-rc7' of https://github.com/awilliam/linux-vfio:
  vfio: Move IOMMU_CAP_CACHE_COHERENCY test to after we know we have a group

2 years agofix race between exit_itimers() and /proc/pid/timers
Oleg Nesterov [Mon, 11 Jul 2022 16:16:25 +0000 (18:16 +0200)]
fix race between exit_itimers() and /proc/pid/timers

As Chris explains, the comment above exit_itimers() is not correct,
we can race with proc_timers_seq_ops. Change exit_itimers() to clear
signal->posix_timers with ->siglock held.

Cc: <stable@vger.kernel.org>
Reported-by: chris@accessvector.net
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model
Meng Tang [Mon, 11 Jul 2022 10:17:44 +0000 (18:17 +0800)]
ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model

There is another HP ProDesk 600 G3 model with the PCI SSID 103c:82b4
that requires the quirk HP_MIC_NO_PRESENCE. Add the corresponding
entry to the quirk table.

Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220711101744.25189-1-tangmeng@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2 years agoALSA: hda/realtek: Fix headset mic for Acer SF313-51
Meng Tang [Mon, 11 Jul 2022 08:15:27 +0000 (16:15 +0800)]
ALSA: hda/realtek: Fix headset mic for Acer SF313-51

The issue on Acer SWIFT SF313-51 is that headset microphone
doesn't work. The following quirk fixed headset microphone issue.
Note that the fixup of SF314-54/55 (ALC256_FIXUP_ACER_HEADSET_MIC)
was not successful on my SF313-51.

Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220711081527.6254-1-tangmeng@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
David S. Miller [Mon, 11 Jul 2022 10:58:38 +0000 (11:58 +0100)]
Merge git://git./linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) refcount_inc_not_zero() is not semantically equivalent to
   atomic_int_not_zero(), from Florian Westphal. My understanding was
   that refcount_*() API provides a wrapper to easier debugging of
   reference count leaks, however, there are semantic differences
   between these two APIs, where refcount_inc_not_zero() needs a barrier.
   Reason for this subtle difference to me is unknown.

2) packet logging is not correct for ARP and IP packets, from the
   ARP family and netdev/egress respectively. Use skb_network_offset()
   to reach the headers accordingly.

3) set element extension length have been growing over time, replace
   a BUG_ON by EINVAL which might be triggerable from userspace.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>