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@xxxxxxxxxxxxxxx>
BugLink: https://github.com/thesofproject/linux/issues/3430
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/pci/hda/hda_intel.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 917ad9d375b1..572ff0d1fafe 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1941,6 +1941,7 @@ static int azx_first_init(struct azx *chip)
dma_bits = 32;
if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
+ dma_set_max_seg_size(&pci->dev, UINT_MAX);
/* read number of streams from GCAP register instead of using
* hardcoded value
--
2.31.1
