wifi: mac80211: sta_info: fix link_sta insertion

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When inserting a link STA, make sure it doesn't exist first
and add lockdep assertions that we cannot modify the hash
table without holding the sta_mtx, so this check is really
correct.

Also return without hashing if the driver failed, and warn
if the hashing fails, which shouldn't happen due to the
check described above.

Fixes: cb71f1d136 ("wifi: mac80211: add sta link addition/removal")
Fixes: ba6ddab94f ("wifi: mac80211: maintain link-sta hash table")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

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This commit is contained in:

Johannes Berg 2022-07-19 12:08:29 +02:00

parent b18d87f5d1

commit 177577dbd2

1 changed files with 14 additions and 3 deletions

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net/mac80211/sta_info.c

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