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mac80211: fix data alignment of management frames / beacons

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 46532
This commit is contained in:
Felix Fietkau 2015-07-31 19:49:09 +00:00
parent eca9068815
commit 38646926a2
1 changed files with 20 additions and 0 deletions
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package/kernel/mac80211/patches/309-mac80211-make-local-tx_headroom-a-multiple-of-4.patch Normal file
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From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 30 Jul 2015 14:12:25 +0200
Subject: [PATCH] mac80211: make local->tx_headroom a multiple of 4
This ensures that mac80211 generated management frames and beacons are
aligned before being passed to the driver
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1031,6 +1031,7 @@ int ieee80211_register_hw(struct ieee802
*/
local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom,
IEEE80211_TX_STATUS_HEADROOM);
+ local->tx_headroom = ALIGN(local->tx_headroom, 4);
debugfs_hw_add(local);