wifi: cfg80211: add a work abstraction with special semantics

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[ Upstream commit a3ee4dc84c ]

Add a work abstraction at the cfg80211 level that will always
hold the wiphy_lock() for any work executed and therefore also
can be canceled safely (without waiting) while holding that.
This improves on what we do now as with the new wiphy works we
don't have to worry about locking while cancelling them safely.

Also, don't let such works run while the device is suspended,
since they'll likely need to interact with the device. Flush
them before suspend though.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Stable-dep-of: 37c20b2eff ("wifi: cfg80211: fix cqm_config access race")
Signed-off-by: Sasha Levin <sashal@kernel.org>

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This commit is contained in:

Johannes Berg 2023-06-06 14:49:25 +02:00 • committed by Greg Kroah-Hartman

parent 2ae4585f74

commit 3fcc6d7d5f

4 changed files with 227 additions and 5 deletions

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95

include/net/cfg80211.h

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122

net/wireless/core.c

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7

net/wireless/core.h

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8

net/wireless/sysfs.c

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