diff mbox series

scsi: ufs: core: Fix link_startup_again on success

Message ID 20241125125338.905146-1-vamshigajjela@google.com
State New
Headers show
Series scsi: ufs: core: Fix link_startup_again on success | expand

Commit Message

Vamshi Gajjela Nov. 25, 2024, 12:53 p.m. UTC
Set link_startup_again to false after a successful
ufshcd_dme_link_startup operation and confirmation of device presence.
Prevents unnecessary link startup attempts when the previous operation
has succeeded.

Signed-off-by: Vamshi Gajjela <vamshigajjela@google.com>
Fixes: 7caf489b99a4 ("scsi: ufs: issue link starup 2 times if device isn't active")
Cc: stable@vger.kernel.org
---
 drivers/ufs/core/ufshcd.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Bart Van Assche Nov. 25, 2024, 5:10 p.m. UTC | #1
On 11/25/24 4:53 AM, Vamshi Gajjela wrote:
> Set link_startup_again to false after a successful
> ufshcd_dme_link_startup operation and confirmation of device presence.
> Prevents unnecessary link startup attempts when the previous operation
> has succeeded.
> 
> Signed-off-by: Vamshi Gajjela <vamshigajjela@google.com>
> Fixes: 7caf489b99a4 ("scsi: ufs: issue link starup 2 times if device isn't active")
> Cc: stable@vger.kernel.org

Shouldn't your Signed-off-by come after the Fixes: and Cc: stable tags? 
Anyway, since this patch looks good to me:

Reviewed-by: Bart Van Assche <bvanassche@acm.org>
diff mbox series

Patch

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index abbe7135a977..cc1d15002ab5 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -4994,6 +4994,10 @@  static int ufshcd_link_startup(struct ufs_hba *hba)
 			goto out;
 		}
 
+		/* link_startup success and device is present */
+		if (!ret && ufshcd_is_device_present(hba))
+			link_startup_again = false;
+
 		/*
 		 * DME link lost indication is only received when link is up,
 		 * but we can't be sure if the link is up until link startup