diff mbox series

[RESEND,v1,1/2] scsi: ufs: print helpful hint when response size exceed buffer size

Message ID BN7PR08MB5684BF6841527EB11A207F56DB770@BN7PR08MB5684.namprd08.prod.outlook.com (mailing list archive)
State Superseded
Headers show
Series Two small patches for UFS | expand

Commit Message

Bean Huo Nov. 12, 2019, 12:21 a.m. UTC
Bean Huo <beanhuo@micron.com>

Reset since ver.kernel.org rejected outlook.com.
Print out returned response size and buffer size, while the front one
is bigger than the back one.

Signed-off-by: Bean Huo <beanhuo@micron.com>
---
 drivers/scsi/ufs/ufshcd.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

Comments

Bart Van Assche Nov. 12, 2019, 4:40 p.m. UTC | #1
On 11/11/19 4:21 PM, Bean Huo (beanhuo) wrote:
> 
> Bean Huo <beanhuo@micron.com>
> 
> Reset since ver.kernel.org rejected outlook.com.
> Print out returned response size and buffer size, while the front one
> is bigger than the back one.
> 
> Signed-off-by: Bean Huo <beanhuo@micron.com>
> ---
>   drivers/scsi/ufs/ufshcd.c | 8 +++++---
>   1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index 11a87f51c442..fdb4f5b7f4bd 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -1935,8 +1935,8 @@ int ufshcd_copy_query_response(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
>   			memcpy(hba->dev_cmd.query.descriptor, descp, resp_len);
>   		} else {
>   			dev_warn(hba->dev,
> -				"%s: Response size is bigger than buffer",
> -				__func__);
> +				 "%s: rsp size %d is bigger than buffer size %d",
> +				 __func__, resp_len, buf_len);
>   			return -EINVAL;
>   		}
>   	}
> @@ -5856,7 +5856,9 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
>   			memcpy(desc_buff, descp, resp_len);
>   			*buff_len = resp_len;
>   		} else {
> -			dev_warn(hba->dev, "rsp size is bigger than buffer");
> +			dev_warn(hba->dev,
> +				 "%s: rsp size %d is bigger than buffer size %d",
> +				 __func__, resp_len, *buff_len);
>   			*buff_len = 0;
>   			err = -EINVAL;
>   		}

Hi Bean,

Please use git format-patch and/or git send-email to publish patches 
such that the standard format is used ("From: " is missing from the 
first line). Anyway:

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

Patch

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 11a87f51c442..fdb4f5b7f4bd 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1935,8 +1935,8 @@  int ufshcd_copy_query_response(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 			memcpy(hba->dev_cmd.query.descriptor, descp, resp_len);
 		} else {
 			dev_warn(hba->dev,
-				"%s: Response size is bigger than buffer",
-				__func__);
+				 "%s: rsp size %d is bigger than buffer size %d",
+				 __func__, resp_len, buf_len);
 			return -EINVAL;
 		}
 	}
@@ -5856,7 +5856,9 @@  static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
 			memcpy(desc_buff, descp, resp_len);
 			*buff_len = resp_len;
 		} else {
-			dev_warn(hba->dev, "rsp size is bigger than buffer");
+			dev_warn(hba->dev,
+				 "%s: rsp size %d is bigger than buffer size %d",
+				 __func__, resp_len, *buff_len);
 			*buff_len = 0;
 			err = -EINVAL;
 		}