[PATCH v3] staging: sm750fb: Remove unused return value in display_control_adjust_sm750le()

[PATCH v3] staging: sm750fb: Remove unused return value in display_control_adjust_sm750le()

[Dorcas AnonoLitunya]

Modifies the return type of display_control_adjust_sm750le()
to void from unsigned long as the return value is being ignored in
all subsequent function calls.

This improves code readability and maintainability.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dorcas AnonoLitunya <anonolitunya@gmail.com>
---

Changes in v3:
- Rebase patch to apply against latest branch

 drivers/staging/sm750fb/ddk750_mode.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/sm750fb/ddk750_mode.c b/drivers/staging/sm750fb/ddk750_mode.c
index e1f20379431c..4278f9a826ab 100644
--- a/drivers/staging/sm750fb/ddk750_mode.c
+++ b/drivers/staging/sm750fb/ddk750_mode.c
@@ -13,7 +13,7 @@
  * HW only supports 7 predefined pixel clocks, and clock select is
  * in bit 29:27 of Display Control register.
  */
-static unsigned long
+static void
 display_control_adjust_sm750le(struct mode_parameter *mode_param,
 			       unsigned long disp_control)
 {
@@ -70,8 +70,6 @@ display_control_adjust_sm750le(struct mode_parameter *mode_param,
 	disp_control |= DISPLAY_CTRL_CLOCK_PHASE;
 
 	poke32(CRT_DISPLAY_CTRL, disp_control);
-
-	return disp_control;
 }
 
 /* only timing related registers will be  programed */
-- 
2.42.0.345.gaab89be2eb

Re: [PATCH v3] staging: sm750fb: Remove unused return value in display_control_adjust_sm750le()

[Greg KH]

On Wed, Nov 01, 2023 at 06:21:34PM +0300, Dorcas AnonoLitunya wrote:
> Modifies the return type of display_control_adjust_sm750le()
> to void from unsigned long as the return value is being ignored in
> all subsequent function calls.
> 
> This improves code readability and maintainability.
> 
> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: Dorcas AnonoLitunya <anonolitunya@gmail.com>
> ---
> 
> Changes in v3:
> - Rebase patch to apply against latest branch
> 
>  drivers/staging/sm750fb/ddk750_mode.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/staging/sm750fb/ddk750_mode.c b/drivers/staging/sm750fb/ddk750_mode.c
> index e1f20379431c..4278f9a826ab 100644
> --- a/drivers/staging/sm750fb/ddk750_mode.c
> +++ b/drivers/staging/sm750fb/ddk750_mode.c
> @@ -13,7 +13,7 @@
>   * HW only supports 7 predefined pixel clocks, and clock select is
>   * in bit 29:27 of Display Control register.
>   */
> -static unsigned long
> +static void
>  display_control_adjust_sm750le(struct mode_parameter *mode_param,
>  			       unsigned long disp_control)
>  {
> @@ -70,8 +70,6 @@ display_control_adjust_sm750le(struct mode_parameter *mode_param,
>  	disp_control |= DISPLAY_CTRL_CLOCK_PHASE;
>  
>  	poke32(CRT_DISPLAY_CTRL, disp_control);
> -
> -	return disp_control;
>  }
>  
>  /* only timing related registers will be  programed */
> -- 
> 2.42.0.345.gaab89be2eb
> 
> 

Does not apply to my current tree :(