From aa507a7bc5ab7513b83fc37ed040b5254737a518 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Wed, 2 Mar 2016 23:28:33 +0200
Subject: [PATCH] mac80211: recalc min_def chanctx even when chandef is
identical
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>
---
net/mac80211/chan.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 283981108ca80..74142d07ad310 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -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));
--
GitLab