Re: video/fb: cleanup FB_MAJOR usage

From: Geert Uytterhoeven
Date: Thu Jul 24 2008 - 20:15:38 EST


On Thu, 24 Jul 2008, Linux Kernel Mailing List wrote:
> Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5bb49fcd501aa9fd3d321a22b7c01d9b0db7ab36
> Commit: 5bb49fcd501aa9fd3d321a22b7c01d9b0db7ab36
> Parent: cba603bf514c101bf48f6adf393c3d00ed457a57
> Author: Philippe De Muyter <phdm@xxxxxxxxx>
> AuthorDate: Wed Jul 23 21:31:50 2008 -0700
> Committer: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
> CommitDate: Thu Jul 24 10:47:41 2008 -0700
>
> video/fb: cleanup FB_MAJOR usage
>
> Currently, linux/major.h defines a GRAPHDEV_MAJOR (29) that nobody uses,
> and linux/fb.h defines the real FB_MAJOR (also 29), that only fbmem.c
> needs. Drop GRAPHDEV_MAJOR from major.h, move FB_MAJOR definition from
> fb.h to major.h, and fix fbmem.c to use major.h's definition.

<linux/fb.h> is exported to userspace, so this may affect userspace
applications.

> Signed-off-by: Philippe De Muyter <phdm@xxxxxxxxx>
> Cc: Krzysztof Helt <krzysztof.h1@xxxxxxxxx>
> Cc: "Antonino A. Daplas" <adaplas@xxxxxxx>
> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
> ---
> drivers/video/fbmem.c | 1 +
> include/linux/fb.h | 1 -
> include/linux/major.h | 2 +-
> 3 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
> index 6b48780..5d84b34 100644
> --- a/drivers/video/fbmem.c
> +++ b/drivers/video/fbmem.c
> @@ -35,6 +35,7 @@
> #include <linux/device.h>
> #include <linux/efi.h>
> #include <linux/fb.h>
> +#include <linux/major.h>
>
> #include <asm/fb.h>
>
> diff --git a/include/linux/fb.h b/include/linux/fb.h
> index a084d13..3b8870e 100644
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
> @@ -8,7 +8,6 @@ struct dentry;
>
> /* Definitions of frame buffers */
>
> -#define FB_MAJOR 29
> #define FB_MAX 32 /* sufficient for now */
>
> /* ioctls
> diff --git a/include/linux/major.h b/include/linux/major.h
> index 0cb9805..53d5faf 100644
> --- a/include/linux/major.h
> +++ b/include/linux/major.h
> @@ -53,7 +53,7 @@
> #define STL_SIOMEMMAJOR 28
> #define ACSI_MAJOR 28
> #define AZTECH_CDROM_MAJOR 29
> -#define GRAPHDEV_MAJOR 29 /* SparcLinux & Linux/68k /dev/fb */
> +#define FB_MAJOR 29 /* /dev/fb* framebuffers */
> #define CM206_CDROM_MAJOR 32
> #define IDE2_MAJOR 33
> #define IDE3_MAJOR 34

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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