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authorJohannes Berg <johannes@sipsolutions.net>2007-07-10 19:32:09 +0200
committerJohn W. Linville <linville@tuxdriver.com>2007-07-12 16:07:25 -0400
commit5558235c6bade6662e6f257a35f2dfdc8a742147 (patch)
tree1e27576a4185fc9ef9948ec104787941f5565809 /net
parent191b92666e3a8aa52af84e2d03350c25145be695 (diff)
downloadlinux-5558235c6bade6662e6f257a35f2dfdc8a742147.tar.bz2
[PATCH] mac80211: conserve stack space due to padding
This patch reorders some fields in struct ieee802_11_elems to save 17*7 or 17*3 bytes (on 64/32-bit machines respectively) stack space in a few functions. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/ieee80211_sta.c29
1 files changed, 16 insertions, 13 deletions
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index 91b545c144c1..f3ca83743b48 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -76,33 +76,36 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
/* Parsed Information Elements */
struct ieee802_11_elems {
+ /* pointers to IEs */
u8 *ssid;
- u8 ssid_len;
u8 *supp_rates;
- u8 supp_rates_len;
u8 *fh_params;
- u8 fh_params_len;
u8 *ds_params;
- u8 ds_params_len;
u8 *cf_params;
- u8 cf_params_len;
u8 *tim;
- u8 tim_len;
u8 *ibss_params;
- u8 ibss_params_len;
u8 *challenge;
- u8 challenge_len;
u8 *wpa;
- u8 wpa_len;
u8 *rsn;
- u8 rsn_len;
u8 *erp_info;
- u8 erp_info_len;
u8 *ext_supp_rates;
- u8 ext_supp_rates_len;
u8 *wmm_info;
- u8 wmm_info_len;
u8 *wmm_param;
+
+ /* length of them, respectively */
+ u8 ssid_len;
+ u8 supp_rates_len;
+ u8 fh_params_len;
+ u8 ds_params_len;
+ u8 cf_params_len;
+ u8 tim_len;
+ u8 ibss_params_len;
+ u8 challenge_len;
+ u8 wpa_len;
+ u8 rsn_len;
+ u8 erp_info_len;
+ u8 ext_supp_rates_len;
+ u8 wmm_info_len;
u8 wmm_param_len;
};