[PATCH v4 3/8] scsi: Optimize scsi_get_blk_by_uuid() loop iteration

[Balaji Selvanathan]

Compute blk_find_max_devnum(UCLASS_SCSI) only once instead of
on every loop iteration for better performance.

Reviewed-by: Simon Glass <sjg at chromium.org>
Signed-off-by: Balaji Selvanathan <balaji.selvanathan at oss.qualcomm.com>
---
Changes in v4:
- Newly created in v4
- Has only scsi_get_blk_by_uuid changes
---
 drivers/scsi/scsi-uclass.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi-uclass.c b/drivers/scsi/scsi-uclass.c
index cea6d771f7c..031dc01b9de 100644
--- a/drivers/scsi/scsi-uclass.c
+++ b/drivers/scsi/scsi-uclass.c
@@ -30,9 +30,10 @@ int scsi_get_blk_by_uuid(const char *uuid,
 			 struct disk_partition *part_info_ptr)
 {
 	struct blk_desc *blk;
-	int i, ret;
+	int i, ret, max;
 
-	for (i = 0; i < blk_find_max_devnum(UCLASS_SCSI) + 1; i++) {
+	max = blk_find_max_devnum(UCLASS_SCSI) + 1;
+	for (i = 0; i < max; i++) {
 		ret = blk_get_desc(UCLASS_SCSI, i, &blk);
 		if (ret)
 			continue;

-- 
2.34.1