Re: [PATCH 08/17] arch/sh: Do not assign FBINFO_FLAG_DEFAULT to fb_videomode.flag

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Hi

Am 10.07.23 um 15:42 schrieb John Paul Adrian Glaubitz:
Hi Thomas!

On Mon, 2023-07-10 at 14:50 +0200, Thomas Zimmermann wrote:
FBINFO_FLAG_DEFAULT is a flag for a framebuffer in struct fb_info.
Flags for videomodes are prefixed with FB_MODE_. FBINFO_FLAG_DEFAULT
is 0 and the static declaration already clears the memory area of
sh7763fb_videomode. So remove the assignment.

Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>
---
  arch/sh/boards/mach-sh7763rdp/setup.c | 1 -
  1 file changed, 1 deletion(-)

diff --git a/arch/sh/boards/mach-sh7763rdp/setup.c b/arch/sh/boards/mach-sh7763rdp/setup.c
index 97e715e4e9b3..345f2b76c85a 100644
--- a/arch/sh/boards/mach-sh7763rdp/setup.c
+++ b/arch/sh/boards/mach-sh7763rdp/setup.c
@@ -119,7 +119,6 @@ static struct fb_videomode sh7763fb_videomode = {
  	.vsync_len = 1,
  	.sync = 0,
  	.vmode = FB_VMODE_NONINTERLACED,
-	.flag = FBINFO_FLAG_DEFAULT,
  };
static struct sh7760fb_platdata sh7763fb_def_pdata = {

I would argue that the current code is more readable that your proposed change.

I agree that it's a no-op, but code is not just about functionality but also
readability, isn't it?

I won't argue with that, but the flag itself is wrong. FBINFO_FLAG_DEFAULT is/was for struct fb_info.flags. You have struct fb_videomode.flag. The valid flags for this field are at [1]. If anything, the field could be initialized to FB_MODE_IS_UNKNOWN, which has the same value.

[1] https://elixir.bootlin.com/linux/latest/source/include/linux/fb.h#L681


Also, I prefer "sh:" as the architecture prefix, not "arch/sh:".

Ok.

Best regards
Thomas

Thanks,
Adrian


--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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