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wifi: nl80211: send frame tx status event only for non-zero cookie

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The cookie value assigned by cfg80211_assign_cookie() is guaranteed to be
non-zero. So the zero cookie value has special use in tx_control_port where
userspace can indicate dont_wait_for_ack, ie. not interested in status. The
wil6210 driver also uses the zero cookie when wil_cfg80211_mgmt_tx() is
invoked from debugfs api the driver provides so the event is also redundant
in that scenario.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Link: https://patch.msgid.link/20260731123509.1975281-14-arend.vanspriel@broadcom.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Arend van Spriel 2026-07-31 14:35:09 +02:00 committed by Johannes Berg
parent 51ba92052e
commit 69ab1d978e
1 changed files with 4 additions and 0 deletions
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4
net/wireless/nl80211.c
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@ -22046,6 +22046,10 @@ static void nl80211_frame_tx_status(struct wireless_dev *wdev,
struct sk_buff *msg;
void *hdr;
/* userspace not interested in zero-cookie status */
if (!status->cookie)
return;
if (command == NL80211_CMD_FRAME_TX_STATUS)
trace_cfg80211_mgmt_tx_status(wdev, status->cookie,
status->ack);