[Cerowrt-devel] Fwd: [bug #442] ath9k queue hang

Felix Fietkau nbd at openwrt.org
Wed Apr 16 09:11:04 EDT 2014

On 2014-04-15 21:00, Dave Taht wrote:
> Thx felix!
> Given that there seems to be a potential race in the code
> review I did at:
> http://www.bufferbloat.net/issues/442#note-22
> another thought is to make the increment and decrement of
> txq->pending_frame atomic, or to do a flush before the unlock
I'm not convinced that there's a race that involves txq->pending_frames.
There is no need to make the increment/decrement atomic, because that
variable is already protected by the txq lock.

> What tree is this patch against?
mac80211 from OpenWrt trunk.

- Felix

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