summaryrefslogtreecommitdiffstats
path: root/net/mac80211
diff options
context:
space:
mode:
authorFelix Fietkau <nbd@openwrt.org>2013-12-14 13:54:53 +0100
committerJohannes Berg <johannes.berg@intel.com>2013-12-16 12:14:07 +0100
commit70dabeb74ee3bff71b65f47546dafb83edbb06b9 (patch)
tree8069d86b7683faa28a583597d446df0f6f560bc8 /net/mac80211
parent7907c7d33c3733b2265dadc6385fe028af72b4c7 (diff)
downloadlinux-70dabeb74ee3bff71b65f47546dafb83edbb06b9.tar.bz2
mac80211: let the driver reserve extra tailroom in beacons
Can be used to add extra IEs (such as P2P NoA) without having to reallocate the buffer. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/tx.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 6d59e21cdb9f..002ded2c01f6 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2549,7 +2549,8 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
*/
skb = dev_alloc_skb(local->tx_headroom +
beacon->head_len +
- beacon->tail_len + 256);
+ beacon->tail_len + 256 +
+ local->hw.extra_beacon_tailroom);
if (!skb)
goto out;
@@ -2581,7 +2582,8 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
ieee80211_update_csa(sdata, presp);
- skb = dev_alloc_skb(local->tx_headroom + presp->head_len);
+ skb = dev_alloc_skb(local->tx_headroom + presp->head_len +
+ local->hw.extra_beacon_tailroom);
if (!skb)
goto out;
skb_reserve(skb, local->tx_headroom);
@@ -2608,7 +2610,8 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
skb = dev_alloc_skb(local->tx_headroom +
bcn->head_len +
256 + /* TIM IE */
- bcn->tail_len);
+ bcn->tail_len +
+ local->hw.extra_beacon_tailroom);
if (!skb)
goto out;
skb_reserve(skb, local->tx_headroom);