Commit 4d196e4b authored Mar 01, 2012 by Felix Fietkau Committed by John W. Linville Mar 05, 2012

mac80211: use 16 bit alignment for the if_ibss bssid field

Several MAC address comparison functions assume 16 bit alignment for pointers
passed to them. Since the addition of the control_port field, alignment
for the IBSS bssid was off by one, causing a severe performance hit on
architectures without efficient unaligned access (e.g. MIPS).

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

parent 380aeef8

net/mac80211/ieee80211_i.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -480,7 +480,7 @@ struct ieee80211_if_ibss {

		bool control_port;

		u8 bssid[ETH_ALEN];
		u8 bssid[ETH_ALEN] __aligned(2);
		u8 ssid[IEEE80211_MAX_SSID_LEN];
		u8 ssid_len, ie_len;
		u8 *ie;