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mac80211: allow drivers to request DTIM period

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Some features require knowing the DTIM period
before associating. This implements the ability
to wait for a beacon in mac80211 before assoc
to provide this value. It is optional since
most likely not all drivers will need this.

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
2010-07-29 16:08:55 +02:00
committed by John W. Linville
parent d28232b461
commit e5b900d228
5 changed files with 84 additions and 5 deletions
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4
net/mac80211/scan.c
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@ -114,6 +114,10 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
bss->dtim_period = tim_ie->dtim_period;
}
/* If the beacon had no TIM IE, or it was invalid, use 1 */
if (beacon && !bss->dtim_period)
bss->dtim_period = 1;
/* replace old supported rates if we get new values */
srlen = 0;
if (elems->supp_rates) {