[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>

2 files changed, 6 insertions, 6 deletions

diff --git a/include/linux/fb.h b/include/linux/fb.h
index 82e39cd0c4fb..c698055266d0 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -619,7 +619,7 @@ struct fb_tilemap {
         __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 8fc80a7d78ac..53b129f07f6f 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 @@ struct font_desc {
 #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 @@ extern struct font_desc	font_vga_8x8,
 
 /* 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