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mac80211: recalc min_def chanctx even when chandef is identical

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The min_def chanctx is affected not only by the current chandef, but
sometimes also by other stations on the vif. There's a valid scenario
where a TDLS peer can widen its BW, thereby causing the min_def
to increase.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Arik Nemtsov 2016-03-02 23:28:33 +02:00 committed by Johannes Berg
parent 59021c6759
commit aa507a7bc5
1 changed files with 3 additions and 1 deletions
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4
net/mac80211/chan.c
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@ -343,8 +343,10 @@ static void ieee80211_change_chanctx(struct ieee80211_local *local,
struct ieee80211_chanctx *ctx,
const struct cfg80211_chan_def *chandef)
{
if (cfg80211_chandef_identical(&ctx->conf.def, chandef))
if (cfg80211_chandef_identical(&ctx->conf.def, chandef)) {
ieee80211_recalc_chanctx_min_def(local, ctx);
return;
}
WARN_ON(!cfg80211_chandef_compatible(&ctx->conf.def, chandef));