[PATCH v2] scsi: ipr: Convert ipr_probe_ioa_part2 as void

[PATCH v2] scsi: ipr: Convert ipr_probe_ioa_part2 as void

[Deepak R Varma]

Convert function ipr_probe_ioa_part2() to return void instead
of int since the current implementation always returns 0 to the caller.
The transformation also eliminates the dead code when calling
ipr_probe_ioa_part2() function.
Issue identified using returnvar Coccinelle semantic patch.

Signed-off-by: Deepak R Varma <drv@mailo.com>
---
Changes in v2:
   - retain and update Return value comment in function documentation

 drivers/scsi/ipr.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 2022ffb45041..dfb759fbbd87 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -9505,11 +9505,10 @@ static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
  * This function takes care of initilizing the adapter to the point
  * where it can accept new commands.
  * Return value:
- * 	0 on success / -EIO on failure
+ *     none
  **/
-static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
+static void ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
 {
-	int rc = 0;
 	unsigned long host_lock_flags = 0;

 	ENTER;
@@ -9525,7 +9524,6 @@ static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
 	spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);

 	LEAVE;
-	return rc;
 }

 /**
@@ -10568,12 +10566,7 @@ static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
 		return rc;

 	ioa_cfg = pci_get_drvdata(pdev);
-	rc = ipr_probe_ioa_part2(ioa_cfg);
-
-	if (rc) {
-		__ipr_remove(pdev);
-		return rc;
-	}
+	ipr_probe_ioa_part2(ioa_cfg);

 	rc = scsi_add_host(ioa_cfg->host, &pdev->dev);

--
2.34.1

Re: [PATCH v2] scsi: ipr: Convert ipr_probe_ioa_part2 as void

[Deepak R Varma]

On Sun, Jan 08, 2023 at 09:58:51PM +0530, Deepak R Varma wrote:
> Convert function ipr_probe_ioa_part2() to return void instead
> of int since the current implementation always returns 0 to the caller.
> The transformation also eliminates the dead code when calling
> ipr_probe_ioa_part2() function.
> Issue identified using returnvar Coccinelle semantic patch.
> 
> Signed-off-by: Deepak R Varma <drv@mailo.com>
> ---
> Changes in v2:
>    - retain and update Return value comment in function documentation

Hello,
May I request a review and feedback comments on this patch proposal please?

Thank you,
./drv

> 
>  drivers/scsi/ipr.c | 13 +++----------
>  1 file changed, 3 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
> index 2022ffb45041..dfb759fbbd87 100644
> --- a/drivers/scsi/ipr.c
> +++ b/drivers/scsi/ipr.c
> @@ -9505,11 +9505,10 @@ static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
>   * This function takes care of initilizing the adapter to the point
>   * where it can accept new commands.
>   * Return value:
> - * 	0 on success / -EIO on failure
> + *     none
>   **/
> -static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
> +static void ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
>  {
> -	int rc = 0;
>  	unsigned long host_lock_flags = 0;
> 
>  	ENTER;
> @@ -9525,7 +9524,6 @@ static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
>  	spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
> 
>  	LEAVE;
> -	return rc;
>  }
> 
>  /**
> @@ -10568,12 +10566,7 @@ static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
>  		return rc;
> 
>  	ioa_cfg = pci_get_drvdata(pdev);
> -	rc = ipr_probe_ioa_part2(ioa_cfg);
> -
> -	if (rc) {
> -		__ipr_remove(pdev);
> -		return rc;
> -	}
> +	ipr_probe_ioa_part2(ioa_cfg);
> 
>  	rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
> 
> --
> 2.34.1
> 
> 
> 

Re: [PATCH v2] scsi: ipr: Convert ipr_probe_ioa_part2 as void

[Brian King]

On 1/8/23 10:28 AM, Deepak R Varma wrote:
> Convert function ipr_probe_ioa_part2() to return void instead
> of int since the current implementation always returns 0 to the caller.
> The transformation also eliminates the dead code when calling
> ipr_probe_ioa_part2() function.
> Issue identified using returnvar Coccinelle semantic patch.
> 
> Signed-off-by: Deepak R Varma <drv@mailo.com>
> ---
> Changes in v2:
>    - retain and update Return value comment in function documentation
> 
>  drivers/scsi/ipr.c | 13 +++----------
>  1 file changed, 3 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
> index 2022ffb45041..dfb759fbbd87 100644
> --- a/drivers/scsi/ipr.c
> +++ b/drivers/scsi/ipr.c
> @@ -9505,11 +9505,10 @@ static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
>   * This function takes care of initilizing the adapter to the point
>   * where it can accept new commands.
>   * Return value:
> - * 	0 on success / -EIO on failure
> + *     none
>   **/
> -static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
> +static void ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
>  {
> -	int rc = 0;
>  	unsigned long host_lock_flags = 0;
> 
>  	ENTER;
> @@ -9525,7 +9524,6 @@ static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
>  	spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
> 
>  	LEAVE;
> -	return rc;
>  }
> 
>  /**
> @@ -10568,12 +10566,7 @@ static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
>  		return rc;
> 
>  	ioa_cfg = pci_get_drvdata(pdev);
> -	rc = ipr_probe_ioa_part2(ioa_cfg);
> -
> -	if (rc) {
> -		__ipr_remove(pdev);
> -		return rc;
> -	}
> +	ipr_probe_ioa_part2(ioa_cfg);
> 
>  	rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
> 
> --
> 2.34.1

Acked-by: Brian King <brking@linux.vnet.ibm.com>

-- 
Brian King
Power Linux I/O
IBM Linux Technology Center