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From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 28 Sep 2022 13:50:34 +0200
Subject: [PATCH] wifi: mac80211: fix decap offload for stations on AP_VLAN
interfaces
Since AP_VLAN interfaces are not passed to the driver, check offload_flags
on the bss vif instead.
Reported-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Fixes: 80a915ec4427 ("mac80211: add rx decapsulation offload support")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -4265,6 +4265,7 @@ void ieee80211_check_fast_rx(struct sta_
.vif_type = sdata->vif.type,
.control_port_protocol = sdata->control_port_protocol,
}, *old, *new = NULL;
+ u32 offload_flags;
bool set_offload = false;
bool assign = false;
bool offload;
@@ -4380,10 +4381,10 @@ void ieee80211_check_fast_rx(struct sta_
if (assign)
new = kmemdup(&fastrx, sizeof(fastrx), GFP_KERNEL);
- offload = assign &&
- (sdata->vif.offload_flags & IEEE80211_OFFLOAD_DECAP_ENABLED);
+ offload_flags = get_bss_sdata(sdata)->vif.offload_flags;
+ offload = offload_flags & IEEE80211_OFFLOAD_DECAP_ENABLED;
- if (offload)
+ if (assign && offload)
set_offload = !test_and_set_sta_flag(sta, WLAN_STA_DECAP_OFFLOAD);
else
set_offload = test_and_clear_sta_flag(sta, WLAN_STA_DECAP_OFFLOAD);
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