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From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 23 Feb 2018 10:01:53 +0100
Subject: [PATCH] mac80211: support fast-rx with incompatible PS
capabilities when PS is disabled
When powersave is disabled for the interface, we can do fast-rx anyway.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2658,6 +2658,7 @@ static int ieee80211_set_power_mgmt(stru
ieee80211_recalc_ps(local);
ieee80211_recalc_ps_vif(sdata);
+ ieee80211_check_fast_rx_iface(sdata);
return 0;
}
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3741,12 +3741,7 @@ void ieee80211_check_fast_rx(struct sta_
/* 4-addr is harder to deal with, later maybe */
if (sdata->u.mgd.use_4addr)
goto clear;
- /* software powersave is a huge mess, avoid all of it */
- if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK))
- goto clear;
- if (ieee80211_hw_check(&local->hw, SUPPORTS_PS) &&
- !ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
- goto clear;
+
if (sta->sta.tdls) {
fastrx.da_offs = offsetof(struct ieee80211_hdr, addr1);
fastrx.sa_offs = offsetof(struct ieee80211_hdr, addr2);
@@ -3758,6 +3753,16 @@ void ieee80211_check_fast_rx(struct sta_
fastrx.expected_ds_bits =
cpu_to_le16(IEEE80211_FCTL_FROMDS);
}
+
+ if (!sdata->u.mgd.powersave)
+ break;
+
+ /* software powersave is a huge mess, avoid all of it */
+ if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK))
+ goto clear;
+ if (ieee80211_hw_check(&local->hw, SUPPORTS_PS) &&
+ !ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
+ goto clear;
break;
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_AP:
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