Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 06:01:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

dma-mapping: don't return errors from dma_set_min_align_mask

Browse Source 
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>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2024-07-19 06:10:24 +02:00
parent b5a73bf4d1
commit c42a01264b
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/linux/dma-mapping.h
View File

@ -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