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Aaron MaandFelix Fietkau
5772439beb
Removing the last link of an MLD interface leaves the firmware with the
MLD BSS and DEV entry: the removal loop skips the deflink, and the
hweight16(mvif->valid_links) fallback reads the stale pre-update
valid_links, which is still non-zero. The entry keeps the per-link MAC
address, so every subsequent legacy association fails authentication
until the interface is removed or the module is reloaded.
Remove the deflink BSS and add it back as a legacy BSS on the transition
to zero links.
Fixes: 69acd6d910b0 ("wifi: mt76: mt7925: add mt7925_change_vif_links")
Signed-off-by: Aaron Ma <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>