linux-kernel - Re: [PATCH] mtd: rawnand: atmel: Unmap streaming DMA mappings

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Message-Id: <20220920081053.597303-1-miquel.raynal@bootlin.com>
Date:   Tue, 20 Sep 2022 10:10:53 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Tudor Ambarus <tudor.ambarus@...rochip.com>,
        miquel.raynal@...tlin.com, richard@....at, vigneshr@...com,
        peda@...ntia.se
Cc:     nicolas.ferre@...rochip.com, alexandre.belloni@...tlin.com,
        claudiu.beznea@...rochip.com, bbrezillon@...nel.org,
        linux-mtd@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH] mtd: rawnand: atmel: Unmap streaming DMA mappings

On Thu, 2022-07-28 at 07:40:14 UTC, Tudor Ambarus wrote:
> Every dma_map_single() call should have its dma_unmap_single() counterpart,
> because the DMA address space is a shared resource and one could render the
> machine unusable by consuming all DMA addresses.
> 
> Cc: stable@...r.kernel.org
> Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver")
> Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
> Acked-by: Alexander Dahl <ada@...rsis.com>
> Reported-by: Peter Rosin <peda@...ntia.se>
> Tested-by: Alexander Dahl <ada@...rsis.com>
> Reviewed-by: Boris Brezillon <boris.brezillon@...labora.com>
> Tested-by: Peter Rosin <peda@...ntia.se>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.

Miquel