The recent code refactoring to use the standard DMA helper requires the max DMA segment size setup for SG list management. Without it, the kernel may spew warnings when a large buffer is allocated.
This patch sets up dma_set_max_seg_size() for avoiding spurious warnings.
Fixes: 2c95b92ecd92 ("ALSA: memalloc: Unify x86 SG-buffer handling (take#3)") Cc: stable@vger.kernel.org BugLink: https://github.com/thesofproject/linux/issues/3430 Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/soc/sof/intel/hda.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index c8fb082209ce..1385695d7745 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -956,6 +956,7 @@ int hda_dsp_probe(struct snd_sof_dev *sdev) dev_dbg(sdev->dev, "DMA mask is 32 bit\n"); dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32)); } + dma_set_max_seg_size(&pci->dev, UINT_MAX);
/* init streams */ ret = hda_dsp_stream_init(sdev);