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Oscar Maes 8f5ccba09a pcnet32: stop holding device spin lock during napi_complete_done 
[ Upstream commit 73bf3cca7d ]

napi_complete_done may call gro_flush_normal (though not currently, as GRO
is unsupported at the moment), which may result in packet TX. This will
eventually result in calling pcnet32_start_xmit - resulting in a deadlock
while trying to re-acquire the already locked spin lock.

It is safe to split the spinlock block into two, because the hardware
registers are still protected from concurrent access, and the two blocks
perform unrelated operations that don't need to happen atomically.

Fixes: 5b2ec6f2be ("pcnet32: use napi_complete_done()")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Oscar Maes <oscmaes92@gmail.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://patch.msgid.link/20260528140320.5556-1-oscmaes92@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-06-19 13:33:33 +02:00
arch ARM: integrator: Fix early initialization 2026-06-01 17:35:49 +02:00
block blk-mq: use quiesced elevator switch when reinitializing queues 2026-06-01 17:35:09 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:22:01 +02:00
crypto crypto: af_alg - Cap AEAD AD length to 0x80000000 2026-06-01 17:35:44 +02:00
Documentation Documentation: fix a hugetlbfs reservation statement 2026-06-01 17:35:32 +02:00
drivers pcnet32: stop holding device spin lock during napi_complete_done 2026-06-19 13:33:33 +02:00
fs hpfs: fix a crash if hpfs_map_dnode_bitmap fails 2026-06-19 13:33:26 +02:00
include net/sched: act_api: use RCU with deferred freeing for action lifecycle 2026-06-19 13:33:33 +02:00
init init: handle bootloader identifier in kernel parameters 2025-10-19 16:21:45 +02:00
io_uring io_uring: prevent opcode speculation 2026-06-01 17:35:45 +02:00
ipc ipc: limit next_id allocation to the valid ID range 2026-06-19 13:33:26 +02:00
kernel tracing: Avoid NULL return from hist_field_name() on truncation 2026-06-01 17:35:51 +02:00
lib iommu, debugobjects: avoid gcc-16.1 section mismatch warnings 2026-06-19 13:33:28 +02:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm mm: blk-cgroup: fix use-after-free in cgwb_release_workfn() 2026-06-01 17:35:08 +02:00
net 6lowpan: fix off-by-one in multicast context address compression 2026-06-19 13:33:33 +02:00
samples samples: mei: Fix building on musl libc 2025-08-28 16:24:07 +02:00
scripts scripts/dtc: Remove unused dts_version in dtc-lexer.l 2026-06-01 17:35:12 +02:00
security ima: check return value of crypto_shash_final() in boot aggregate 2026-06-01 17:35:34 +02:00
sound ASoC: qcom: q6asm-dai: do not set stream state in event and trigger callbacks 2026-06-19 13:33:29 +02:00
tools selftests: forwarding: lib: Add helpers for checksum handling 2026-06-19 13:33:24 +02:00
usr kbuild: hdrcheck: fix cross build with clang 2025-06-27 11:05:22 +01:00
virt KVM: Reject wrapped offset in kvm_reset_dirty_gfn() 2026-06-01 17:35:44 +02:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Remove *.orig pattern from .gitignore 2024-10-17 15:11:10 +02:00
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS staging: rtl8712: Remove driver using deprecated API wext 2025-12-07 06:09:36 +09:00
Makefile Linux 5.15.209 2026-06-01 17:35:51 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.