wifi: mac80211: store the ack skb before building the header

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The ack skb has to be stored while the frame is still in 802.3
format, since that is what is reported back to userspace. It's
currently done in ieee80211_build_hdr(), but that complicates
it a bit.

Thanks the the previous ieee80211_lookup_ra_sta() change, it's
now known whether or not the frame will be group addressed on
the air, which is needed for this condition.

Also simplify callers of ieee80211_store_ack_skb() by filling
the TX info directly and fix the free in ieee80211_build_hdr()
to use ieee80211_free_txskb(), reporting the drop to userspace
rather than being quiet about it.

This also lets use validate the link ID for control port TX in
that code itself, rather than interleaving it into build_hdr().

Link: https://patch.msgid.link/20260803141309.292711-16-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

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This commit is contained in:

Johannes Berg 2026-08-03 16:08:43 +02:00

parent 8516aa4f05

commit a64a20fb27

1 changed files with 36 additions and 80 deletions

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116

net/mac80211/tx.c

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