[PATCH] mac80211: bss_tim_clear must use ~ instead of !

We need to use bitwise NOT.
This also cleans up the code a little bit to make it more readable.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 0c9548a0a4ec7efee75bdf7fca52e31005a9a67c..9e3c365e3f035b192d63ffa1832b50648b5a019e 100644 (file)
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -642,34 +642,34 @@ struct sta_attribute {
        ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
 };
 
-static inline void __bss_tim_set(struct ieee80211_if_ap *bss, int aid)
+static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
 {
        /*
-        * This format has ben mandated by the IEEE specifications,
+        * This format has been mandated by the IEEE specifications,
         * so this line may not be changed to use the __set_bit() format.
         */
-       bss->tim[(aid)/8] |= 1<<((aid) % 8);
+       bss->tim[aid / 8] |= (1 << (aid % 8));
 }
 
 static inline void bss_tim_set(struct ieee80211_local *local,
-                              struct ieee80211_if_ap *bss, int aid)
+                              struct ieee80211_if_ap *bss, u16 aid)
 {
        read_lock_bh(&local->sta_lock);
        __bss_tim_set(bss, aid);
        read_unlock_bh(&local->sta_lock);
 }
 
-static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid)
+static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
 {
        /*
-        * This format has ben mandated by the IEEE specifications,
+        * This format has been mandated by the IEEE specifications,
         * so this line may not be changed to use the __clear_bit() format.
         */
-       bss->tim[(aid)/8] &= !(1<<((aid) % 8));
+       bss->tim[aid / 8] &= ~(1 << (aid % 8));
 }
 
 static inline void bss_tim_clear(struct ieee80211_local *local,
-                                struct ieee80211_if_ap *bss, int aid)
+                                struct ieee80211_if_ap *bss, u16 aid)
 {
        read_lock_bh(&local->sta_lock);
        __bss_tim_clear(bss, aid);