Fonts: Add charcount field to font_desc

Subsystems are hard-coding the number of characters of our built-in fonts
as 256. Include that information in our kernel font descriptor, `struct
font_desc`.

Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/65952296d1d9486093bd955d1536f7dcd11112c6.1605169912.git.yepeilin.cs@gmail.com

include/linux/font.h

@@ -17,6 +17,7 @@ struct font_desc {
     int idx;
     const char *name;
     unsigned int width, height;
+    unsigned int charcount;
     const void *data;
     int pref;
 };

lib/fonts/font_10x18.c

@@ -5137,6 +5137,7 @@ const struct font_desc font_10x18 = {
 	.name	= "10x18",
 	.width	= 10,
 	.height	= 18,
+	.charcount = 256,
 	.data	= fontdata_10x18.data,
 #ifdef __sparc__
 	.pref	= 5,

lib/fonts/font_6x10.c

@@ -3083,6 +3083,7 @@ const struct font_desc font_6x10 = {
 	.name	= "6x10",
 	.width	= 6,
 	.height	= 10,
+	.charcount = 256,
 	.data	= fontdata_6x10.data,
 	.pref	= 0,
 };

lib/fonts/font_6x11.c

@@ -3346,6 +3346,7 @@ const struct font_desc font_vga_6x11 = {
 	.name	= "ProFont6x11",
 	.width	= 6,
 	.height	= 11,
+	.charcount = 256,
 	.data	= fontdata_6x11.data,
 	/* Try avoiding this font if possible unless on MAC */
 	.pref	= -2000,

lib/fonts/font_6x8.c

@@ -2571,6 +2571,7 @@ const struct font_desc font_6x8 = {
 	.name	= "6x8",
 	.width	= 6,
 	.height	= 8,
+	.charcount = 256,
 	.data	= fontdata_6x8.data,
 	.pref	= 0,
 };

lib/fonts/font_7x14.c

@@ -4113,6 +4113,7 @@ const struct font_desc font_7x14 = {
 	.name	= "7x14",
 	.width	= 7,
 	.height	= 14,
+	.charcount = 256,
 	.data	= fontdata_7x14.data,
 	.pref	= 0,
 };

lib/fonts/font_8x16.c

@@ -4627,6 +4627,7 @@ const struct font_desc font_vga_8x16 = {
 	.name	= "VGA8x16",
 	.width	= 8,
 	.height	= 16,
+	.charcount = 256,
 	.data	= fontdata_8x16.data,
 	.pref	= 0,
 };

lib/fonts/font_8x8.c

@@ -2578,6 +2578,7 @@ const struct font_desc font_vga_8x8 = {
 	.name	= "VGA8x8",
 	.width	= 8,
 	.height	= 8,
+	.charcount = 256,
 	.data	= fontdata_8x8.data,
 	.pref	= 0,
 };

lib/fonts/font_acorn_8x8.c

@@ -270,6 +270,7 @@ const struct font_desc font_acorn_8x8 = {
 	.name	= "Acorn8x8",
 	.width	= 8,
 	.height	= 8,
+	.charcount = 256,
 	.data	= acorndata_8x8.data,
 #ifdef CONFIG_ARCH_ACORN
 	.pref	= 20,

lib/fonts/font_mini_4x6.c

@@ -2152,6 +2152,7 @@ const struct font_desc font_mini_4x6 = {
 	.name	= "MINI4x6",
 	.width	= 4,
 	.height	= 6,
+	.charcount = 256,
 	.data	= fontdata_mini_4x6.data,
 	.pref	= 3,
 };

lib/fonts/font_pearl_8x8.c

@@ -2582,6 +2582,7 @@ const struct font_desc font_pearl_8x8 = {
 	.name	= "PEARL8x8",
 	.width	= 8,
 	.height	= 8,
+	.charcount = 256,
 	.data	= fontdata_pearl8x8.data,
 	.pref	= 2,
 };

lib/fonts/font_sun12x22.c

@@ -6156,6 +6156,7 @@ const struct font_desc font_sun_12x22 = {
 	.name	= "SUN12x22",
 	.width	= 12,
 	.height	= 22,
+	.charcount = 256,
 	.data	= fontdata_sun12x22.data,
 #ifdef __sparc__
 	.pref	= 5,

lib/fonts/font_sun8x16.c

@@ -268,6 +268,7 @@ const struct font_desc font_sun_8x16 = {
 	.name	= "SUN8x16",
 	.width	= 8,
 	.height	= 16,
+	.charcount = 256,
 	.data	= fontdata_sun8x16.data,
 #ifdef __sparc__
 	.pref	= 10,

lib/fonts/font_ter16x32.c

@@ -2062,6 +2062,7 @@ const struct font_desc font_ter_16x32 = {
 	.name	= "TER16x32",
 	.width	= 16,
 	.height = 32,
+	.charcount = 256,
 	.data	= fontdata_ter16x32.data,
 #ifdef __sparc__
 	.pref	= 5,