linux-kernel - Re: [PATCH 05/10] dmaengine: bcm2835-dma: Use vchan_terminate_vdesc() instead of desc

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Message-ID: <87k1yr4blm.fsf@anholt.net>
Date:   Wed, 15 Nov 2017 10:53:57 -0800
From:   Eric Anholt <eric@...olt.net>
To:     Peter Ujfalusi <peter.ujfalusi@...com>, vinod.koul@...el.com
Cc:     linux-arm-kernel@...ts.infradead.org, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org, lars@...afoo.de,
        Martin Sperl <kernel@...tin.sperl.org>
Subject: Re: [PATCH 05/10] dmaengine: bcm2835-dma: Use vchan_terminate_vdesc() instead of desc_free

Peter Ujfalusi <peter.ujfalusi@...com> writes:

> To avoid race with vchan_complete, use the race free way to terminate
> running transfer.
>
> Implement the device_synchronize callback to make sure that the terminated
> descriptor is freed.
>
> CC: Martin Sperl <kernel@...tin.sperl.org>
> CC: Eric Anholt <eric@...olt.net>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>

I haven't fully followed the series, but thanks for porting your fix to
other platforms!

Acked-by: Eric Anholt <eric@...olt.net>

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