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dma-mapping: reformat comment to suppress htmldoc warning

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make html doc reports a cryptic warning with the commit named below:

  kernel/dma/mapping.c:258: WARNING: Option list ends without a blank
                                     line; unexpected unindent.

Seems the parser is a bit fussy about the tabbing and having a single
space tab causes the warning. To suppress the warning add another
tab to the list and reindent everything.

Fixes: 7c2645a2a3 ("dma-mapping: allow EREMOTEIO return code for P2PDMA transfers")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Logan Gunthorpe 2022-07-27 13:15:22 -06:00 committed by Christoph Hellwig
parent 0d06132fc8
commit 8419702489
1 changed files with 9 additions and 9 deletions
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18
kernel/dma/mapping.c
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@ -249,15 +249,15 @@ EXPORT_SYMBOL(dma_map_sg_attrs);
* Returns 0 on success or a negative error code on error. The following
* error codes are supported with the given meaning:
*
* -EINVAL An invalid argument, unaligned access or other error
* in usage. Will not succeed if retried.
* -ENOMEM Insufficient resources (like memory or IOVA space) to
* complete the mapping. Should succeed if retried later.
* -EIO Legacy error code with an unknown meaning. eg. this is
* returned if a lower level call returned DMA_MAPPING_ERROR.
* -EREMOTEIO The DMA device cannot access P2PDMA memory specified in
* the sg_table. This will not succeed if retried.
*
* -EINVAL An invalid argument, unaligned access or other error
* in usage. Will not succeed if retried.
* -ENOMEM Insufficient resources (like memory or IOVA space) to
* complete the mapping. Should succeed if retried later.
* -EIO Legacy error code with an unknown meaning. eg. this is
* returned if a lower level call returned
* DMA_MAPPING_ERROR.
* -EREMOTEIO The DMA device cannot access P2PDMA memory specified
* in the sg_table. This will not succeed if retried.
*/
int dma_map_sgtable(struct device *dev, struct sg_table *sgt,
enum dma_data_direction dir, unsigned long attrs)