[PATCH] fbcon: constify font data
const-ify the font control structures and data, to make somewhat better
guarantees that these are not modified anywhere in the kernel.
Specifically for a kernel debugger to share this information from the
normal kernel code, such a guarantee seems rather desirable.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: "Antonino A. Daplas" <adaplas@hotpop.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 82e39cd..c698055 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -619,7 +619,7 @@
__u32 height; /* height of each tile in scanlines */
__u32 depth; /* color depth of each tile */
__u32 length; /* number of tiles in the map */
- __u8 *data; /* actual tile map: a bitmap array, packed
+ const __u8 *data; /* actual tile map: a bitmap array, packed
to the nearest byte */
};
diff --git a/include/linux/font.h b/include/linux/font.h
index 8fc80a7..53b129f 100644
--- a/include/linux/font.h
+++ b/include/linux/font.h
@@ -15,9 +15,9 @@
struct font_desc {
int idx;
- char *name;
+ const char *name;
int width, height;
- void *data;
+ const void *data;
int pref;
};
@@ -32,7 +32,7 @@
#define ACORN8x8_IDX 8
#define MINI4x6_IDX 9
-extern struct font_desc font_vga_8x8,
+extern const struct font_desc font_vga_8x8,
font_vga_8x16,
font_pearl_8x8,
font_vga_6x11,
@@ -45,11 +45,11 @@
/* Find a font with a specific name */
-extern struct font_desc *find_font(char *name);
+extern const struct font_desc *find_font(const char *name);
/* Get the default font for a specific screen size */
-extern struct font_desc *get_default_font(int xres, int yres);
+extern const struct font_desc *get_default_font(int xres, int yres);
/* Max. length for the name of a predefined font */
#define MAX_FONT_NAME 32