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scsi: sr: Don't use GFP_DMA

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[ Upstream commit d94d94969a4ba07a43d62429c60372320519c391 ]

The allocated buffers are used as a command payload, for which the block
layer and/or DMA API do the proper bounce buffering if needed.

Link: https://lore.kernel.org/r/20211222090842.920724-1-hch@lst.de
Reported-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christoph Hellwig 2021-12-22 10:08:42 +01:00 committed by Greg Kroah-Hartman
parent de9a936b04
commit 0df5104008
2 changed files with 3 additions and 3 deletions
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2
drivers/scsi/sr.c
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@ -917,7 +917,7 @@ static void get_capabilities(struct scsi_cd *cd)
/* allocate transfer buffer */
buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
buffer = kmalloc(512, GFP_KERNEL);
if (!buffer) {
sr_printk(KERN_ERR, cd, "out of memory.\n");
return;

4
drivers/scsi/sr_vendor.c
View File

@ -131,7 +131,7 @@ int sr_set_blocklength(Scsi_CD *cd, int blocklength)
if (cd->vendor == VENDOR_TOSHIBA)
density = (blocklength > 2048) ? 0x81 : 0x83;
buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
buffer = kmalloc(512, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
@ -179,7 +179,7 @@ int sr_cd_check(struct cdrom_device_info *cdi)
if (cd->cdi.mask & CDC_MULTI_SESSION)
return 0;
buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
buffer = kmalloc(512, GFP_KERNEL);
if (!buffer)
return -ENOMEM;