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wifi: mac80211: determine missing link_id in ieee80211_rx_for_interface() based on frequency

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For broadcast frames, every interface might have to process it and
therefore the link_id cannot be determined in the driver.

In mac80211, when the frame is about to be forwarded to each interface,
we can use the member "freq" in struct ieee80211_rx_status to determine
the "link_id" for each interface.

Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Reviewed-by: Money Wang <money.wang@mediatek.com>
Link: https://patch.msgid.link/20250721062929.1662700-1-michael-cy.lee@mediatek.com
[simplify, remove unnecessary link->conf check]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Michael-CY Lee 2025-07-21 14:29:29 +08:00 committed by Johannes Berg
parent c639a44ac6
commit 4970e393eb
1 changed files with 17 additions and 1 deletions
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18
net/mac80211/rx.c
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@ -5106,8 +5106,24 @@ static bool ieee80211_rx_for_interface(struct ieee80211_rx_data *rx,
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
sta = sta_info_get_bss(rx->sdata, hdr->addr2);
if (status->link_valid)
if (status->link_valid) {
link_id = status->link_id;
} else if (ieee80211_vif_is_mld(&rx->sdata->vif) &&
status->freq) {
struct ieee80211_link_data *link;
struct ieee80211_chanctx_conf *conf;
for_each_link_data_rcu(rx->sdata, link) {
conf = rcu_dereference(link->conf->chanctx_conf);
if (!conf || !conf->def.chan)
continue;
if (status->freq == conf->def.chan->center_freq) {
link_id = link->link_id;
break;
}
}
}
}
if (!ieee80211_rx_data_set_sta(rx, sta, link_id))