mac80211: fix fast_tx header alignment
authorFelix Fietkau <nbd@nbd.name>
Thu, 19 May 2016 15:34:38 +0000 (17:34 +0200)
committerJohannes Berg <johannes.berg@intel.com>
Tue, 31 May 2016 10:14:04 +0000 (12:14 +0200)
commit6fe04128f158c5ad27e7504bfdf1b12e63331bc9
tree294d109c5107cae1833804802886c829352f7149
parentfe7a7c57629e8dcbc0e297363a9b2366d67a6dc5
mac80211: fix fast_tx header alignment

The header field is defined as u8[] but also accessed as struct
ieee80211_hdr. Enforce an alignment of 2 to prevent unnecessary
unaligned accesses, which can be very harmful for performance on many
platforms.

Fixes: e495c24731a2 ("mac80211: extend fast-xmit for more ciphers")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/mac80211/sta_info.h