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Vitaly Lifshits 950d5226cd e1000e: change usleep_range to udelay in PHY mdic access 
commit 387f295cb2 upstream.

This is a partial revert of commit 6dbdd4de03 ("e1000e: Workaround
for sporadic MDI error on Meteor Lake systems"). The referenced commit
used usleep_range inside the PHY access routines, which are sometimes
called from an atomic context. This can lead to a kernel panic in some
scenarios, such as cable disconnection and reconnection on vPro systems.

Solve this by changing the usleep_range calls back to udelay.

Fixes: 6dbdd4de03 ("e1000e: Workaround for sporadic MDI error on Meteor Lake systems")
Cc: stable@vger.kernel.org
Reported-by: Jérôme Carretero <cJ@zougloub.eu>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218740
Closes: https://lore.kernel.org/lkml/a7eb665c74b5efb5140e6979759ed243072cb24a.camel@zougloub.eu/
Co-developed-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Tested-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240429171040.1152516-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-17 12:15:03 +02:00
arch arm64: dts: mediatek: mt8183-pico6: Fix bluetooth node 2024-05-17 12:14:51 +02:00
block blk-iocost: do not WARN if iocg was already offlined 2024-05-17 12:14:50 +02:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto Revert "crypto: pkcs7 - remove sha1 support" 2024-04-03 15:32:31 +02:00
Documentation dt-bindings: iio: health: maxim,max30102: fix compatible check 2024-05-17 12:15:02 +02:00
drivers e1000e: change usleep_range to udelay in PHY mdic access 2024-05-17 12:15:03 +02:00
fs btrfs: make sure that WRITTEN is set on all metadata blocks 2024-05-17 12:15:01 +02:00
include kmsan: compiler_types: declare __no_sanitize_or_inline 2024-05-17 12:15:03 +02:00
init rust: make mutually exclusive with CFI_CLANG 2024-05-02 16:35:25 +02:00
io_uring io_uring: Fix io_cqring_wait() not restoring sigmask on get_timespec64() failure 2024-04-27 17:12:47 +02:00
ipc shm: Slim down dependencies 2023-12-20 19:26:31 -05:00
kernel workqueue: Fix selection of wake_cpu in kick_pool() 2024-05-17 12:15:02 +02:00
lib maple_tree: fix mas_empty_area_rev() null pointer dereference 2024-05-17 12:15:01 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm/slub: avoid zeroing outside-object freepointer for single free 2024-05-17 12:15:00 +02:00
net mptcp: only allow set existing scheduler for net.mptcp.scheduler 2024-05-17 12:15:02 +02:00
rust rust: macros: fix soundness issue in module! macro 2024-05-17 12:14:22 +02:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
scripts kbuild: Disable KCSAN for autogenerated *.mod.c intermediaries 2024-05-17 12:14:39 +02:00
security selinux: avoid dereference of garbage after mount failure 2024-04-10 16:38:01 +02:00
sound ALSA: hda/realtek: Fix conflicting PCI SSID 17aa:386f for Lenovo Legion models 2024-05-17 12:15:00 +02:00
tools selftests: test_bridge_neigh_suppress.sh: Fix failures due to duplicate MAC 2024-05-17 12:14:53 +02:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM: Always flush async #PF workqueue when vCPU is being destroyed 2024-04-03 15:32:03 +02:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.mailmap drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: supplement of zswap maintainers update 2024-01-25 23:52:21 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
Makefile Linux 6.8.9 2024-05-02 16:35:35 +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.