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[PATCH] fbcmap.c: mark structs const or __read_mostly

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- Mark the default colormaps read-only, as nobody should be allowed to
  modify them

- Additionally mark color values as __read_mostly since they will only be
  modified (very seldom) by fb_invert_cmaps()

- Add named C99-initializers in fb_cmap structs and use the ARRAY_SIZE()
  macro

Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Helge Deller
2006-12-08 02:40:27 -08:00
committed by Linus Torvalds
parent 357b819dda
commit adf6b20654
2 changed files with 31 additions and 30 deletions
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6
include/linux/fb.h
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@@ -970,11 +970,11 @@ extern struct fb_videomode *fb_find_best_display(struct fb_monspecs *specs,
/* drivers/video/fbcmap.c */
extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
extern void fb_dealloc_cmap(struct fb_cmap *cmap);
extern int fb_copy_cmap(struct fb_cmap *from, struct fb_cmap *to);
extern int fb_cmap_to_user(struct fb_cmap *from, struct fb_cmap_user *to);
extern int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to);
extern int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to);
extern int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *fb_info);
extern int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *fb_info);
extern struct fb_cmap *fb_default_cmap(int len);
extern const struct fb_cmap *fb_default_cmap(int len);
extern void fb_invert_cmaps(void);
struct fb_videomode {