Re: [PATCH v2] staging: sm750: Rename function to avoid CamelCase

[Julia Lawall <julia.lawall@inria.fr>]

On Tue, 14 Mar 2023, Kloudifold wrote:

> The sm750 driver had some functions named in CamelCase,
> which violates the kernel's naming convention.
> In this patch, I rename these functions to snake case,
> which is the expected style.

Please go back and read the Outreachy tutorial, specifically the Patch
Philosophy page:

https://kernelnewbies.org/PatchPhilosophy

The log message should be in the imperative.  You should try to avoid the
use of "I".  "In this patch" is not necessary.  Mentioning the name of the
driver is not necessary, since it appears in the subject line and in the
list of changed files below.

> This v2 patch was prompted by an error reported by the
> Linux test robot, which detected the compile error.

This is not easy to understand.  What do you mean by a compile error.
Normally the use or non use of Camel case would be a coding style
violation, but would not provoke a compiler error.

julia

> | Reported-by: kernel test robot <lkp@intel.com>
> | Link: https://lore.kernel.org/oe-kbuild-all/202303110849.X24WnHnM-lkp@intel.com/
>
> Signed-off-by: Kloudifold <cloudifold.3125@gmail.com>
> ---
>  drivers/staging/sm750fb/sm750.c        | 22 +++++++++++-----------
>  drivers/staging/sm750fb/sm750_cursor.c | 14 +++++++-------
>  drivers/staging/sm750fb/sm750_cursor.h | 12 ++++++------
>  3 files changed, 24 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
> index effc7fcc3..9ddcd7b7d 100644
> --- a/drivers/staging/sm750fb/sm750.c
> +++ b/drivers/staging/sm750fb/sm750.c
> @@ -121,14 +121,14 @@ static int lynxfb_ops_cursor(struct fb_info *info, struct fb_cursor *fbcursor)
>
>  	sm750_hw_cursor_disable(cursor);
>  	if (fbcursor->set & FB_CUR_SETSIZE)
> -		sm750_hw_cursor_setSize(cursor,
> -					fbcursor->image.width,
> -					fbcursor->image.height);
> +		sm750_hw_cursor_set_size(cursor,
> +					 fbcursor->image.width,
> +					 fbcursor->image.height);
>
>  	if (fbcursor->set & FB_CUR_SETPOS)
> -		sm750_hw_cursor_setPos(cursor,
> -				       fbcursor->image.dx - info->var.xoffset,
> -				       fbcursor->image.dy - info->var.yoffset);
> +		sm750_hw_cursor_set_pos(cursor,
> +				        fbcursor->image.dx - info->var.xoffset,
> +				        fbcursor->image.dy - info->var.yoffset);
>
>  	if (fbcursor->set & FB_CUR_SETCMAP) {
>  		/* get the 16bit color of kernel means */
> @@ -142,14 +142,14 @@ static int lynxfb_ops_cursor(struct fb_info *info, struct fb_cursor *fbcursor)
>  		     ((info->cmap.green[fbcursor->image.bg_color] & 0xfc00) >> 5) |
>  		     ((info->cmap.blue[fbcursor->image.bg_color] & 0xf800) >> 11);
>
> -		sm750_hw_cursor_setColor(cursor, fg, bg);
> +		sm750_hw_cursor_set_color(cursor, fg, bg);
>  	}
>
>  	if (fbcursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
> -		sm750_hw_cursor_setData(cursor,
> -					fbcursor->rop,
> -					fbcursor->image.data,
> -					fbcursor->mask);
> +		sm750_hw_cursor_set_data(cursor,
> +					 fbcursor->rop,
> +					 fbcursor->image.data,
> +					 fbcursor->mask);
>  	}
>
>  	if (fbcursor->enable)
> diff --git a/drivers/staging/sm750fb/sm750_cursor.c b/drivers/staging/sm750fb/sm750_cursor.c
> index 43e6f52c2..ff643e33f 100644
> --- a/drivers/staging/sm750fb/sm750_cursor.c
> +++ b/drivers/staging/sm750fb/sm750_cursor.c
> @@ -58,13 +58,13 @@ void sm750_hw_cursor_disable(struct lynx_cursor *cursor)
>  	poke32(HWC_ADDRESS, 0);
>  }
>
> -void sm750_hw_cursor_setSize(struct lynx_cursor *cursor, int w, int h)
> +void sm750_hw_cursor_set_size(struct lynx_cursor *cursor, int w, int h)
>  {
>  	cursor->w = w;
>  	cursor->h = h;
>  }
>
> -void sm750_hw_cursor_setPos(struct lynx_cursor *cursor, int x, int y)
> +void sm750_hw_cursor_set_pos(struct lynx_cursor *cursor, int x, int y)
>  {
>  	u32 reg;
>
> @@ -73,7 +73,7 @@ void sm750_hw_cursor_setPos(struct lynx_cursor *cursor, int x, int y)
>  	poke32(HWC_LOCATION, reg);
>  }
>
> -void sm750_hw_cursor_setColor(struct lynx_cursor *cursor, u32 fg, u32 bg)
> +void sm750_hw_cursor_set_color(struct lynx_cursor *cursor, u32 fg, u32 bg)
>  {
>  	u32 reg = (fg << HWC_COLOR_12_2_RGB565_SHIFT) &
>  		HWC_COLOR_12_2_RGB565_MASK;
> @@ -82,8 +82,8 @@ void sm750_hw_cursor_setColor(struct lynx_cursor *cursor, u32 fg, u32 bg)
>  	poke32(HWC_COLOR_3, 0xffe0);
>  }
>
> -void sm750_hw_cursor_setData(struct lynx_cursor *cursor, u16 rop,
> -			     const u8 *pcol, const u8 *pmsk)
> +void sm750_hw_cursor_set_data(struct lynx_cursor *cursor, u16 rop,
> +			      const u8 *pcol, const u8 *pmsk)
>  {
>  	int i, j, count, pitch, offset;
>  	u8 color, mask, opr;
> @@ -132,8 +132,8 @@ void sm750_hw_cursor_setData(struct lynx_cursor *cursor, u16 rop,
>  	}
>  }
>
> -void sm750_hw_cursor_setData2(struct lynx_cursor *cursor, u16 rop,
> -			      const u8 *pcol, const u8 *pmsk)
> +void sm750_hw_cursor_set_data2(struct lynx_cursor *cursor, u16 rop,
> +			       const u8 *pcol, const u8 *pmsk)
>  {
>  	int i, j, count, pitch, offset;
>  	u8 color, mask;
> diff --git a/drivers/staging/sm750fb/sm750_cursor.h b/drivers/staging/sm750fb/sm750_cursor.h
> index b59643dd6..88fa02f63 100644
> --- a/drivers/staging/sm750fb/sm750_cursor.h
> +++ b/drivers/staging/sm750fb/sm750_cursor.h
> @@ -5,11 +5,11 @@
>  /* hw_cursor_xxx works for voyager,718 and 750 */
>  void sm750_hw_cursor_enable(struct lynx_cursor *cursor);
>  void sm750_hw_cursor_disable(struct lynx_cursor *cursor);
> -void sm750_hw_cursor_setSize(struct lynx_cursor *cursor, int w, int h);
> -void sm750_hw_cursor_setPos(struct lynx_cursor *cursor, int x, int y);
> -void sm750_hw_cursor_setColor(struct lynx_cursor *cursor, u32 fg, u32 bg);
> -void sm750_hw_cursor_setData(struct lynx_cursor *cursor, u16 rop,
> -			     const u8 *data, const u8 *mask);
> -void sm750_hw_cursor_setData2(struct lynx_cursor *cursor, u16 rop,
> +void sm750_hw_cursor_set_size(struct lynx_cursor *cursor, int w, int h);
> +void sm750_hw_cursor_set_pos(struct lynx_cursor *cursor, int x, int y);
> +void sm750_hw_cursor_set_color(struct lynx_cursor *cursor, u32 fg, u32 bg);
> +void sm750_hw_cursor_set_data(struct lynx_cursor *cursor, u16 rop,
>  			      const u8 *data, const u8 *mask);
> +void sm750_hw_cursor_set_data2(struct lynx_cursor *cursor, u16 rop,
> +			       const u8 *data, const u8 *mask);
>  #endif
> --
> 2.39.2
>
>
>