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Filename Latest commit message Latest commit date
Nikolay Aleksandrov 797bb9439c be2net: fix sleeping while atomic bugs in be_ndo_bridge_getlink 
[ Upstream commit 1a82d19ca2d6835904ee71e2d40fd331098f94a0 ]

Partially revert commit b71724147e ("be2net: replace polling with
sleeping in the FW completion path") w.r.t mcc mutex it introduces and the
use of usleep_range. The be2net be_ndo_bridge_getlink() callback is
called with rcu_read_lock, so this code has been broken for a long time.
Both the mutex_lock and the usleep_range can cause the issue Ian Kumlien
reported[1]. The call path is:
be_ndo_bridge_getlink -> be_cmd_get_hsw_config -> be_mcc_notify_wait ->
be_mcc_wait_compl -> usleep_range()

[1] https://lore.kernel.org/netdev/CAA85sZveppNgEVa_FD+qhOMtG_AavK9_mFiU+jWrMtXmwqefGA@mail.gmail.com/

Tested-by: Ian Kumlien <ian.kumlien@gmail.com>
Fixes: b71724147e ("be2net: replace polling with sleeping in the FW completion path")
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20250227164129.1201164-1-razor@blackwall.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-03-13 12:43:30 +01:00
arch x86/cpu: Properly parse CPUID leaf 0x2 TLB descriptor 0x63 2025-03-13 12:43:27 +01:00
block partitions: mac: fix handling of bogus partition table 2025-03-13 12:43:16 +01:00
certs
crypto crypto: testmgr - some more fixes to RSA test vectors 2025-03-13 12:43:21 +01:00
Documentation dt-bindings: mmc: controller: clarify the address-cells description 2025-03-13 12:42:53 +01:00
drivers be2net: fix sleeping while atomic bugs in be_ndo_bridge_getlink 2025-03-13 12:43:30 +01:00
fs btrfs: avoid monopolizing a core when activating a swap file 2025-03-13 12:43:19 +01:00
include net: extract port range fields from fl_flow_key 2025-03-13 12:43:23 +01:00
init
ipc
kernel acct: perform last write from workqueue 2025-03-13 12:43:26 +01:00
lib
LICENSES
mm mm/page_alloc: fix uninitialized variable 2025-03-13 12:43:28 +01:00
net llc: do not use skb_get() before dev_queue_xmit() 2025-03-13 12:43:29 +01:00
samples
scripts kbuild: Move -Wenum-enum-conversion to W=2 2025-03-13 12:43:09 +01:00
security ima: Fix use-after-free on a dentry's dname.name 2025-03-13 12:43:19 +01:00
sound ALSA: hda/realtek: update ALC222 depop optimize 2025-03-13 12:43:27 +01:00
tools perf bench: Fix undefined behavior in cmpworker() 2025-03-13 12:43:08 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile kbuild: userprogs: use correct lld when linking through clang 2025-03-13 12:43:04 +01:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.