diff mbox series

[2/4] dma-mapping: don't return errors from dma_set_min_align_mask

Message ID 20240824034925.1163244-3-hch@lst.de
State Accepted
Commit c42a01264ba1497eb3193c08ff3c2656d98250a6
Headers show
Series [1/4] scsi: check that busses support the DMA API before setting dma parameters | expand

Commit Message

Christoph Hellwig Aug. 24, 2024, 3:49 a.m. UTC 
A NULL dev->dma_parms indicates either a bus that is not DMA capable or
grave bug in the implementation of the bus code.

There isn't much the driver can do in terms of error handling for either
case, so just warn and continue as DMA operations will fail anyway.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
---
 include/linux/dma-mapping.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index f693aafe221f2c..cfd6bafec3f944 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -575,13 +575,12 @@  static inline unsigned int dma_get_min_align_mask(struct device *dev)
 	return 0;
 }
 
-static inline int dma_set_min_align_mask(struct device *dev,
+static inline void dma_set_min_align_mask(struct device *dev,
 		unsigned int min_align_mask)
 {
 	if (WARN_ON_ONCE(!dev->dma_parms))
-		return -EIO;
+		return;
 	dev->dma_parms->min_align_mask = min_align_mask;
-	return 0;
 }
 
 #ifndef dma_get_cache_alignment