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wifi: iwlwifi: don't warn if the NIC is gone in resume

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[ Upstream commit 15220a2573 ]

Some BIOSes decide to power gate the WLAN device during S3. Since
iwlwifi doesn't expect this, it gets very noisy reporting that the
device is no longer available. Wifi is still available because iwlwifi
recovers, but it spews scary prints in the log.

Fix that by failing gracefully.

Fixes: e8bb19c1d5 ("wifi: iwlwifi: support fast resume")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219597
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250420095642.d8d58146c829.I569ca15eaaa774d633038a749cc6ec7448419714@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Emmanuel Grumbach 2025-04-20 10:00:00 +03:00 • committed by Greg Kroah-Hartman
commit 33bf992088
5 changed files with 33 additions and 12 deletions
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