For broadcast frames, every interface might have to process it and
therefore the link_id cannot be determined in the driver.
When the frame is about to be forwarded to each interface, we can
use the member "band" in struct ieee80211_rx_status to determine the
"link_id" for each interface.
Signed-off-by: Michael-CY Lee <michael-cy.lee@xxxxxxxxxxxx>
Reviewed-by: Money Wang <money.wang@xxxxxxxxxxxx>
---
net/mac80211/rx.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 09beb65d6108..7671fd39a60e 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -5115,8 +5115,28 @@ 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)) {
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_link_data *link;
+ int i;
+
+ for_each_valid_link(&rx->sdata->wdev, i) {
+ link = rcu_dereference(rx->sdata->link[i]);
+ if (!link)
+ continue;
+
+ sband = ieee80211_get_link_sband(link);
+ if (!sband)
+ continue;
+
+ if (status->band == sband->band) {
+ link_id = i;
+ break;
+ }
+ }
+ }
}
if (!ieee80211_rx_data_set_sta(rx, sta, link_id))
--
2.25.1
