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Re: [PATCH] ath9k: Check for NULL sta in ath_tx_start

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On Tue, Dec 07, 2010 at 11:06:24AM +0530, Ben Greear wrote:
> On 12/06/2010 09:21 PM, Luis R. Rodriguez wrote:
> > On Mon, Dec 6, 2010 at 9:13 PM,<greearb@xxxxxxxxx>  wrote:
> >> From: Ben Greear<greearb@xxxxxxxxxxxxxxx>
> >>
> >> It can be NULL according to docs, and logging showed it
> >> to be NULL in practice.
> >>
> >> Signed-off-by: Ben Greear<greearb@xxxxxxxxxxxxxxx>
> >
> > Does this fix an oops? If so can you explain and provide the trace and
> > resubmit and cc stable in the commit log?
> 
> I think it fixes the TID corruption I posted about earlier.  It seems
> so obvious though, that I'm curious why no one else sees problems,
> and why I didn't see more crashes in my setup.
> 
> (The paprd code appears to send with null STA, for instance, and my
> printks showed lots of NULL stas in my 16-sta test setup, though I
> don't think I'm using the paprd code path.)

paprd is used only with >= AR9003.

Vasanth
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