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mac80211: optimise station flags

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The flaglock in struct sta_info has long been
something that I wanted to get rid of, this
finally does the conversion to atomic bitops.

The conversion itself is straight-forward in
most places, a few things needed to change a
bit since we can no longer use multiple bits
at the same time.

On x86-64, this is a fairly significant code
size reduction:
   text	   data	    bss	    dec	    hex
 427861	  23648	   1008	 452517	  6e7a5	before
 425383	  23648	    976	 450007	  6ddd7	after

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2011-09-29 16:04:36 +02:00 • committed by John W. Linville
parent deeaee197b
commit c2c98fdeb5
18 changed files with 173 additions and 194 deletions
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2
net/mac80211/util.c
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@ -1122,7 +1122,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
list_for_each_entry(sta, &local->sta_list, list) {
ieee80211_sta_tear_down_BA_sessions(sta, true);
clear_sta_flags(sta, WLAN_STA_BLOCK_BA);
clear_sta_flag(sta, WLAN_STA_BLOCK_BA);
}
mutex_unlock(&local->sta_mtx);