linux-kernel - [PATCH AUTOSEL for 4.9 35/54] mac80211: don't try to sleep in rate_control_rate

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Message-ID: <20171122222344.19782-35-alexander.levin@verizon.com>
Date:   Wed, 22 Nov 2017 22:23:59 +0000
From:   alexander.levin@...izon.com
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Cc:     Johannes Berg <johannes.berg@...el.com>,
        alexander.levin@...izon.com
Subject: [PATCH AUTOSEL for 4.9 35/54] mac80211: don't try to sleep in
 rate_control_rate_init()

From: Johannes Berg <johannes.berg@...el.com>

[ Upstream commit 115865fa0826ed18ca04717cf72d0fe874c0fe7f ]

In my previous patch, I missed that rate_control_rate_init() is
called from some places that cannot sleep, so it cannot call
ieee80211_recalc_min_chandef(). Remove that call for now to fix
the context bug, we'll have to find a different way to fix the
minimum channel width issue.

Fixes: 96aa2e7cf126 ("mac80211: calculate min channel width correctly")
Reported-by: Xiaolong Ye (via lkp-robot) <xiaolong.ye@...el.com>
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
---
 net/mac80211/rate.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 9e2641d45587..206698bc93f4 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -40,8 +40,6 @@ void rate_control_rate_init(struct sta_info *sta)
 
 	ieee80211_sta_set_rx_nss(sta);
 
-	ieee80211_recalc_min_chandef(sta->sdata);
-
 	if (!ref)
 		return;
 
-- 
2.11.0