Re: [PATCH v2] i2c: at91: use dma safe buffers

From: Wolfram Sang
Date: Wed May 04 2022 - 16:23:19 EST


On Thu, Apr 07, 2022 at 05:08:28PM +0200, Michael Walle wrote:
> The supplied buffer might be on the stack and we get the following error
> message:
> [ 3.312058] at91_i2c e0070600.i2c: rejecting DMA map of vmalloc memory
>
> Use i2c_{get,put}_dma_safe_msg_buf() to get a DMA-able memory region if
> necessary.
>
> Fixes: 60937b2cdbf9 ("i2c: at91: add dma support")
> Signed-off-by: Michael Walle <michael@xxxxxxxx>
> Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@xxxxxxxxxxxxx>

Applied to for-next, thanks!

BTW, my name is Wolfram.

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