[Linaro-mm-sig] Re: [PATCH] i2c: at91: use dma safe buffers

Hi all,

Am 2022-03-03 17:17, schrieb Michael Walle:

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.

Cc: stable@vger.kernel.org Signed-off-by: Michael Walle michael@walle.cc

Any news here?

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I'm not sure if or which Fixes: tag I should add to this patch. The issue seems to be since a very long time, but nobody seem to have triggered it. FWIW, I'm using the sff,sfp driver, which triggers this.

-michael