linux-kernel - Re: [v2,4/5] mtd: spi_nor: pass DMA-able buffer to spi_nor_read

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Message-Id: <20181115132518.15349-1-boris.brezillon@bootlin.com>
Date:   Thu, 15 Nov 2018 14:25:18 +0100
From:   Boris Brezillon <boris.brezillon@...tlin.com>
To:     Tudor.Ambarus@...rochip.com, marek.vasut@...il.com,
        dwmw2@...radead.org, computersforpeace@...il.com, richard@....at
Cc:     Boris Brezillon <boris.brezillon@...tlin.com>,
        yogeshnarayan.gaur@....com, linux-mtd@...ts.infradead.org,
        linux-kernel@...r.kernel.org, cyrille.pitchen@...ev4u.fr
Subject: Re: [v2,4/5] mtd: spi_nor: pass DMA-able buffer to spi_nor_read_raw()

On Fri, 2018-11-09 at 16:56:54 UTC,  wrote:
> spi_nor_read_raw() calls nor->read() which might be implemented
> by the m25p80 driver. m25p80 uses the spi-mem layer which requires
> DMA-able in/out buffers. Pass kmalloc'ed dma buffer to spi_nor_read_raw().
> 
> Fixes: b038e8e3be72 ("mtd: spi-nor: parse SFDP Sector Map Parameter Table")
> Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>

Applied to http://git.infradead.org/linux-mtd.git mtd/fixes, thanks.

Boris