From: Christoph Hellwig <hch@lst.de>
Date: Wed, 22 Dec 2021 10:08:42 +0100
Subject: scsi: sr: Don't use GFP_DMA
Git-commit: d94d94969a4ba07a43d62429c60372320519c391
Patch-mainline: v5.17-rc1
References: git-fixes
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>
Acked-by: Lee Duncan <lduncan@suse.com>
---
drivers/scsi/sr.c | 2 +-
drivers/scsi/sr_vendor.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 8e4af111c078..f5a2eed54345 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -856,7 +856,7 @@ 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;
diff --git a/drivers/scsi/sr_vendor.c b/drivers/scsi/sr_vendor.c
index 1f988a1b9166..a61635326ae0 100644
--- a/drivers/scsi/sr_vendor.c
+++ b/drivers/scsi/sr_vendor.c
@@ -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;