github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 01:53:29 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

ata: libata: Improve return value of atapi_check_dma()

Browse Source 
atapi_check_dma() allows a LLD to filter ATAPI commands, returning a
status indicating whether or not it is OK to use DMA for the supplied
ATAPI command.

Change atapi_check_dma() to return -EOPNOTSUPP instead of 1 for an
ATAPI command that is not allowed to use DMA.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/r/20250312133954.6666-1-chenhuacai@loongson.cn
[cassel: improve commit log]
Signed-off-by: Niklas Cassel <cassel@kernel.org>
This commit is contained in:
Huacai Chen 2025-03-12 21:39:54 +08:00 committed by Niklas Cassel
parent 885251dc35
commit 725ad02830
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/ata/libata-core.c
View File

@ -4579,7 +4579,7 @@ int atapi_check_dma(struct ata_queued_cmd *qc)
*/
if (!(qc->dev->quirks & ATA_QUIRK_ATAPI_MOD16_DMA) &&
unlikely(qc->nbytes & 15))
return 1;
return -EOPNOTSUPP;
if (ap->ops->check_atapi_dma)
return ap->ops->check_atapi_dma(qc);