From 33ffd952c252b7943dd5d051af3eeacc0bb3c23e Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Thu, 30 Jan 2014 22:08:16 +0200
Subject: [PATCH] mac80211: split ieee80211_vif_change_channel in two

ieee80211_vif_change_channel() locks chanctx_mtx.  When implementing
channel reservation for CS, we will need to call the function to
change channel when the lock is already held, so split the part that
requires the lock out and leave the locking in the original function.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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