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authorJohannes Berg <johannes.berg@intel.com>2014-01-24 14:41:44 +0100
committerJohannes Berg <johannes.berg@intel.com>2014-02-04 21:58:15 +0100
commitb4ba544c8c1349afd44e10aebec03c90e9b71d98 (patch)
tree0c918d83b412f4155f3ea882626b0422315d32c5 /net/mac80211/tx.c
parent953467d32150e2ae15aa3d5396ada175d265a412 (diff)
mac80211: fix bufferable MMPDU RX handling
Action, disassoc and deauth frames are bufferable, and as such don't have the PM bit in the frame control field reserved which means we need to react to the bit when receiving in such a frame. Fix this by introducing a new helper ieee80211_is_bufferable_mmpdu() and using it for the RX path that currently ignores the PM bit in any non-data frames for doze->wake transitions, but listens to it in all frames for wake->doze transitions, both of which are wrong. Also use the new helper in the TX path to clean up the code. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/tx.c')
-rw-r--r--net/mac80211/tx.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 07a7f38dc34..5476a69b45c 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -522,11 +522,8 @@ ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx)
if (unlikely(tx->flags & IEEE80211_TX_PS_BUFFERED))
return TX_CONTINUE;
- /* only deauth, disassoc and action are bufferable MMPDUs */
if (ieee80211_is_mgmt(hdr->frame_control) &&
- !ieee80211_is_deauth(hdr->frame_control) &&
- !ieee80211_is_disassoc(hdr->frame_control) &&
- !ieee80211_is_action(hdr->frame_control)) {
+ !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) {
if (tx->flags & IEEE80211_TX_UNICAST)
info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER;
return TX_CONTINUE;