linux-kernel - Re: [PATCH v3] spi: mediatek: Don't modify spi

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Date:   Wed, 19 Sep 2018 10:31:57 -0700
From:   Mark Brown <broonie@...nel.org>
To:     Peter Shih <pihsun@...omium.org>
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v3] spi: mediatek: Don't modify spi_transfer when
 transfer.

On Wed, Sep 19, 2018 at 02:29:27PM +0800, Peter Shih wrote:
> Mediatek SPI driver modifies some fields (tx_buf, rx_buf, len, tx_dma,
> rx_dma) of the spi_transfer* passed in when doing transfer_one and in
> interrupt handler. This is somewhat unexpected, and there are some

Please do not submit new versions of already applied patches, please
submit incremental updates to the existing code.  Modifying existing
commits creates problems for other users building on top of those
commits so it's best practice to only change pubished git commits if
absolutely essential.

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