ufs: host: ufs-qcom: Return directly if MCQ resource is provided in DT

Message ID 20230301073110.9083-1-manivannan.sadhasivam@linaro.org
State New
Headers
Series ufs: host: ufs-qcom: Return directly if MCQ resource is provided in DT |

Commit Message

Manivannan Sadhasivam March 1, 2023, 7:31 a.m. UTC
  Instead of using a goto label to return, let's return directly in the
"if" condition after setting mcq_base.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/ufs/host/ufs-qcom.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)
  

Comments

Bart Van Assche March 1, 2023, 6:07 p.m. UTC | #1
On 2/28/23 23:31, Manivannan Sadhasivam wrote:
> Instead of using a goto label to return, let's return directly in the
> "if" condition after setting mcq_base.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> ---
>   drivers/ufs/host/ufs-qcom.c | 9 ++++-----
>   1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
> index 34fc453f3eb1..d90f963eed02 100644
> --- a/drivers/ufs/host/ufs-qcom.c
> +++ b/drivers/ufs/host/ufs-qcom.c
> @@ -1460,8 +1460,10 @@ static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
>   	/* MCQ resource provided in DT */
>   	res = &hba->res[RES_MCQ];
>   	/* Bail if MCQ resource is provided */
> -	if (res->base)
> -		goto out;
> +	if (res->base) {
> +		hba->mcq_base = res->base;
> +		return 0;
> +	}
>   
>   	/* Explicitly allocate MCQ resource from ufs_mem */
>   	res_mcq = devm_kzalloc(hba->dev, sizeof(*res_mcq), GFP_KERNEL);
> @@ -1489,9 +1491,6 @@ static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
>   		goto ioremap_err;
>   	}
>   
> -out:
> -	hba->mcq_base = res->base;
> -	return 0;
>   ioremap_err:
>   	res->base = NULL;
>   	remove_resource(res_mcq);

This patch changes the behavior for the success case without mentioning 
this in the patch description. So I assume that the behavior change is 
unintentional and hence that this patch should be dropped?

Bart.
  
Manivannan Sadhasivam March 2, 2023, 7:26 a.m. UTC | #2
On Wed, Mar 01, 2023 at 10:07:41AM -0800, Bart Van Assche wrote:
> On 2/28/23 23:31, Manivannan Sadhasivam wrote:
> > Instead of using a goto label to return, let's return directly in the
> > "if" condition after setting mcq_base.
> > 
> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> > ---
> >   drivers/ufs/host/ufs-qcom.c | 9 ++++-----
> >   1 file changed, 4 insertions(+), 5 deletions(-)
> > 
> > diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
> > index 34fc453f3eb1..d90f963eed02 100644
> > --- a/drivers/ufs/host/ufs-qcom.c
> > +++ b/drivers/ufs/host/ufs-qcom.c
> > @@ -1460,8 +1460,10 @@ static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
> >   	/* MCQ resource provided in DT */
> >   	res = &hba->res[RES_MCQ];
> >   	/* Bail if MCQ resource is provided */
> > -	if (res->base)
> > -		goto out;
> > +	if (res->base) {
> > +		hba->mcq_base = res->base;
> > +		return 0;
> > +	}
> >   	/* Explicitly allocate MCQ resource from ufs_mem */
> >   	res_mcq = devm_kzalloc(hba->dev, sizeof(*res_mcq), GFP_KERNEL);
> > @@ -1489,9 +1491,6 @@ static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
> >   		goto ioremap_err;
> >   	}
> > -out:
> > -	hba->mcq_base = res->base;
> > -	return 0;
> >   ioremap_err:
> >   	res->base = NULL;
> >   	remove_resource(res_mcq);
> 
> This patch changes the behavior for the success case without mentioning this
> in the patch description. So I assume that the behavior change is
> unintentional and hence that this patch should be dropped?
> 

Sorry, my bad here :( Please ignore this patch.

Thanks,
Mani

> Bart.
  

Patch

diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 34fc453f3eb1..d90f963eed02 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -1460,8 +1460,10 @@  static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
 	/* MCQ resource provided in DT */
 	res = &hba->res[RES_MCQ];
 	/* Bail if MCQ resource is provided */
-	if (res->base)
-		goto out;
+	if (res->base) {
+		hba->mcq_base = res->base;
+		return 0;
+	}
 
 	/* Explicitly allocate MCQ resource from ufs_mem */
 	res_mcq = devm_kzalloc(hba->dev, sizeof(*res_mcq), GFP_KERNEL);
@@ -1489,9 +1491,6 @@  static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
 		goto ioremap_err;
 	}
 
-out:
-	hba->mcq_base = res->base;
-	return 0;
 ioremap_err:
 	res->base = NULL;
 	remove_resource(res_mcq);