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Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c19
1 files changed, 8 insertions, 11 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 3b7a750ebc70..79a89fe9d616 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1311,18 +1311,15 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
!ieee80211_has_morefrags(hdr->frame_control) &&
!(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) &&
(rx->sdata->vif.type == NL80211_IFTYPE_AP ||
- rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) {
+ rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
+ /* PM bit is only checked in frames where it isn't reserved,
+ * in AP mode it's reserved in non-bufferable management frames
+ * (cf. IEEE 802.11-2012 8.2.4.1.7 Power Management field)
+ */
+ (!ieee80211_is_mgmt(hdr->frame_control) ||
+ ieee80211_is_bufferable_mmpdu(hdr->frame_control))) {
if (test_sta_flag(sta, WLAN_STA_PS_STA)) {
- /*
- * Ignore doze->wake transitions that are
- * indicated by non-data frames, the standard
- * is unclear here, but for example going to
- * PS mode and then scanning would cause a
- * doze->wake transition for the probe request,
- * and that is clearly undesirable.
- */
- if (ieee80211_is_data(hdr->frame_control) &&
- !ieee80211_has_pm(hdr->frame_control))
+ if (!ieee80211_has_pm(hdr->frame_control))
sta_ps_end(sta);
} else {
if (ieee80211_has_pm(hdr->frame_control))