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mac80211: stop tx before doing hw config and rate update

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The assumption is that during the hw config, transmission was
already stopped by mac80211. Sometimes the AP can be switching
b/w the ht modes due to intolerant or etc where STA is in
the middle of transmission. In such scenario, buffer overflow
was observed at driver side. And also before updating the rate
control, the frames are continued to xmited with older rates.
This patch ensures that the frames are always xmitted with
updated rates and avoid buffer overflow.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan
2011-09-02 13:51:59 +05:30
committed by John W. Linville
parent c9c0d9ecdc
commit 693828fe92
2 changed files with 17 additions and 0 deletions
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net/mac80211/ieee80211_i.h
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@@ -671,6 +671,7 @@ enum queue_stop_reason {
IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
IEEE80211_QUEUE_STOP_REASON_SUSPEND,
IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE,
};
#ifdef CONFIG_MAC80211_LEDS