From: Mohamed Abbas <mohamed.abbas@xxxxxxxxx>
Postpone calling ieee80211_hw_config if hardware scanning is active.
This is similar to solution for software scanning where channel setting
is delayed until scan complete.
Signed-off-by: Mohamed Abbas <mohamed.abbas@xxxxxxxxx>
Signed-off-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>
---
Resend of patch "iwlwifi: prevent tuning during scanning" with
corrected title.
net/mac80211/ieee80211_ioctl.c | 2 +-
net/mac80211/ieee80211_sta.c | 3 +++
2 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c
index 1d91575..83b79c9 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/net/mac80211/ieee80211_ioctl.c
@@ -308,7 +308,7 @@ int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz)
}
if (set) {
- if (local->sta_sw_scanning)
+ if (local->sta_sw_scanning || local->sta_hw_scanning)
ret = 0;
else
ret = ieee80211_hw_config(local);
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index 4255ec4..1e9650e 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -3609,6 +3609,9 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
if (local->sta_hw_scanning) {
local->sta_hw_scanning = 0;
+ if (ieee80211_hw_config(local))
+ printk(KERN_DEBUG "%s: failed to restore operational "
+ "channel after scan\n", dev->name);
/* Restart STA timer for HW scan case */
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list)
--
1.5.3.4
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