linux-kernel - Re: [PATCH] spi: spi-fsl-dspi: Fill actual

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Message-ID: <20180716112629.GC20734@sirena.org.uk>
Date:   Mon, 16 Jul 2018 12:26:29 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Andrey Smirnov <andrew.smirnov@...il.com>
Cc:     Sanchayan Maity <maitysanchayan@...il.com>,
        Stefan Agner <stefan@...er.ch>, cphealy@...il.com,
        linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] spi: spi-fsl-dspi: Fill actual_length when doing DMA
 transfer

On Sun, Jul 15, 2018 at 11:25:08PM -0700, Andrey Smirnov wrote:
> Users of SPI device drivers may rely on 'actual_length', so it is
> important that information is correctly reported. One example would be
> spi_mem_exec_op() which will fail if 'actual_length' doesn't match
> requested transfer length. To fix the problem, add necessary code to
> populate 'actual_length'.

This doesn't apply against current code, please check and resend.

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