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/intel/skylake/skl.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index 148ddf4cace0..aeca58246fc7 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -952,6 +952,7 @@ static int skl_first_init(struct hdac_bus *bus) /* allow 64bit DMA address if supported by H/W */ if (dma_set_mask_and_coherent(bus->dev, DMA_BIT_MASK(64))) dma_set_mask_and_coherent(bus->dev, DMA_BIT_MASK(32)); + dma_set_max_seg_size(bus->dev, UINT_MAX);
/* initialize streams */ snd_hdac_ext_stream_init_all