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Re: [PATCH 1/1] ath9k: decrypt_error flag issue

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On Thu, Aug 9, 2012 at 5:57 PM, Lorenzo Bianconi
<lorenzo.bianconi83@xxxxxxxxx> wrote:
>> On Wed, 8 Aug 2012 19:20:15 +0200
>> Lorenzo Bianconi <lorenzo.bianconi83@xxxxxxxxx> wrote:
>>
>>> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@xxxxxxxxx>
>>> ---
>>
>> Please see Documentation/SubmittingPatches in Linux sources.  In
>> particular, you separated the description of the patch from its
>> contents.  Single patch doesn't need to be send as series.  The
>> description for the series is not a substitute for a description of
>> every patch.
>>
>> Also, the subject should summarize the patch.  I know, it may be hard
>> to fit, but not impossible.
>>
>
> Ack. I will rewrite the mail.

more help
http://linuxwireless.org/en/developers/Documentation/git-guide :)

>
>> When exactly would you have the problem that decrypt_error is not
>> unset, but should be?  It's important that you show your assumptions so
>> that others can see if they are correct, in addition to checking the
>> code.  Other developers are more likely to check your patch if you
>> show understanding of the code you have changed.
>>
>
> Assume hw reports a decryption error, the flag decrypt_error is set to
> true in ath9k_rx_accept.
> Since this flag is initialized to false just out of  ath_rx_tasklet while cycle,
> all subsequent frames are marked as corrupted until ath_rx_tasklet ends.

seems to be a nice catch!
It would be great if we can simulate this situation (ie
decrypt_error is set to true, and subsequent frames are discarded)
may be we can try this some time, purposefully setting the decrypt_error 'true'
for the first instance and see if there is data loss/throughput diff
because of this.


>
>
>>> --- a/drivers/net/wireless/ath/ath9k/recv.c
>>> +++ b/drivers/net/wireless/ath/ath9k/recv.c
>>> @@ -1780,7 +1780,6 @@
>>
>> That's weird, recv.c is 1273 lines long in wireless-testing.git.

yeah you got to commit the patches by cloning the latest wireless testing
git clone git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git


-- 
thanks,
shafi
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