[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>
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@ -76,33 +76,36 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
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/* Parsed Information Elements */
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/* Parsed Information Elements */
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struct ieee802_11_elems {
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struct ieee802_11_elems {
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/* pointers to IEs */
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u8 *ssid;
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u8 *ssid;
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u8 ssid_len;
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u8 *supp_rates;
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u8 *supp_rates;
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u8 supp_rates_len;
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u8 *fh_params;
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u8 *fh_params;
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u8 fh_params_len;
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u8 *ds_params;
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u8 *ds_params;
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u8 ds_params_len;
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u8 *cf_params;
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u8 *cf_params;
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u8 cf_params_len;
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u8 *tim;
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u8 *tim;
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u8 tim_len;
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u8 *ibss_params;
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u8 *ibss_params;
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u8 ibss_params_len;
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u8 *challenge;
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u8 *challenge;
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u8 challenge_len;
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u8 *wpa;
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u8 *wpa;
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u8 wpa_len;
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u8 *rsn;
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u8 *rsn;
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u8 rsn_len;
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u8 *erp_info;
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u8 *erp_info;
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u8 erp_info_len;
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u8 *ext_supp_rates;
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u8 *ext_supp_rates;
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u8 ext_supp_rates_len;
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u8 *wmm_info;
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u8 *wmm_info;
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u8 wmm_info_len;
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u8 *wmm_param;
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u8 *wmm_param;
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/* length of them, respectively */
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u8 ssid_len;
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u8 supp_rates_len;
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u8 fh_params_len;
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u8 ds_params_len;
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u8 cf_params_len;
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u8 tim_len;
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u8 ibss_params_len;
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u8 challenge_len;
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u8 wpa_len;
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u8 rsn_len;
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u8 erp_info_len;
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u8 ext_supp_rates_len;
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u8 wmm_info_len;
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u8 wmm_param_len;
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u8 wmm_param_len;
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};
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};
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