ALSA: hda: Set max DMA segment size

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: 2c95b92 ("ALSA: memalloc: Unify x86 SG-buffer handling (take#3)") Cc: <[email protected]> BugLink: thesofproject#3430 Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Takashi Iwai <[email protected]>
josf · Feb 17, 2022 · acd289e · acd289e
1 parent 5948342
commit acd289e
Showing 1 changed file with 1 addition and 0 deletions.
diff --git 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