[ Dropping other MLs ]
On Sat, 13 Oct 2018 18:20:35 +0200,
Takashi Iwai wrote:
>
> On Sat, 13 Oct 2018 17:17:04 +0200,
> Christoph Hellwig wrote:
> >
> > The DMA API does its own zone decisions based on the coherent_dma_mask.
> >
> > Signed-off-by: Christoph Hellwig <hch@xxxxxx>
>
> Reviewed-by: Takashi Iwai <tiwai@xxxxxxx>
Mark, let me know whether you'd take this via your tree or may I take
via mine (with a minor correction of the subject line).
FWIW, the driver sets the 31bit (!) DMA mask, and that's the likely
reason of GFP_DMA passed there in the original code.
thanks,
Takashi
>
>
> thanks,
>
> Takashi
>
> > ---
> > sound/soc/intel/common/sst-firmware.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/sound/soc/intel/common/sst-firmware.c b/sound/soc/intel/common/sst-firmware.c
> > index 11041aedea31..1e067504b604 100644
> > --- a/sound/soc/intel/common/sst-firmware.c
> > +++ b/sound/soc/intel/common/sst-firmware.c
> > @@ -355,7 +355,7 @@ struct sst_fw *sst_fw_new(struct sst_dsp *dsp,
> >
> > /* allocate DMA buffer to store FW data */
> > sst_fw->dma_buf = dma_alloc_coherent(dsp->dma_dev, sst_fw->size,
> > - &sst_fw->dmable_fw_paddr, GFP_DMA | GFP_KERNEL);
> > + &sst_fw->dmable_fw_paddr, GFP_KERNEL);
> > if (!sst_fw->dma_buf) {
> > dev_err(dsp->dev, "error: DMA alloc failed\n");
> > kfree(sst_fw);
> > --
> > 2.19.1
> >
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