Re: [PATCH backport 4.4.y-4.8.z] dmaengine: at_xdmac: fix spurious flag status for mem2mem transfers

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Le 15/11/2016 à 20:27, Greg Kroah-Hartman a écrit :
> On Tue, Nov 15, 2016 at 04:30:48PM +0100, Nicolas Ferre wrote:
>> From: Ludovic Desroches <ludovic.desroches@xxxxxxxxx>
>>
>> commit 95da0c19d164f6df0b71a5187950f47d4b746e91 upstream.
>>
>> When setting the channel configuration register, the perid field is not
>> set to 0 since it is useless for mem2mem transfers. Unfortunately, a
>> device has 0 as perid. It could cause spurious flags status because
>> the controller could mix some events from the two channels.
>> For that reason, use the highest perid value for mem2mem transfers since it
>> doesn't match the perid of other devices.
>>
>> Signed-off-by: Ludovic Desroches <ludovic.desroches@xxxxxxxxx>
>> Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
>> [nicolas.ferre@xxxxxxxxx: backport to 4.4.y stable kernel]
> 
> Why does your subject say 4.4.y-4.8.y when this patch showed up in
> 4.5-rc1?

True. I mixed-up kernel revision numbers while checking where this patch
should apply (4.4.8 vs. 4.8.8) and didn't double check with original
commit ID: wrong!

Sorry for the confusion Gerg.

Best regards,
-- 
Nicolas Ferre
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]