Replace the local hack with the dma_can_mmap helper to check if
a given device supports mapping DMA allocations to userspace.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
sound/core/pcm_native.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 703857aab00f..81c82c3ee8a2 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -220,12 +220,11 @@ static bool hw_support_mmap(struct snd_pcm_substream *substream)
{
if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_MMAP))
return false;
- /* architecture supports dma_mmap_coherent()? */
-#if defined(CONFIG_ARCH_NO_COHERENT_DMA_MMAP) || !defined(CONFIG_HAS_DMA)
+ if (!dma_can_mmap(substream->dma_buffer.dev.dev))
+ return false;
if (!substream->ops->mmap &&
substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
return false;
-#endif
return true;
}
--
2.20.1
