MODULE: add byte type of module paramater, like the comments say we support...

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

include/linux/moduleparam.h

@@ -89,6 +89,10 @@ extern int parse_args(const char *name,
 #define __param_check(name, p, type) \
 	static inline type *__check_##name(void) { return(p); }
 
+extern int param_set_byte(const char *val, struct kernel_param *kp);
+extern int param_get_byte(char *buffer, struct kernel_param *kp);
+#define param_check_byte(name, p) __param_check(name, p, unsigned char)
+
 extern int param_set_short(const char *val, struct kernel_param *kp);
 extern int param_get_short(char *buffer, struct kernel_param *kp);
 #define param_check_short(name, p) __param_check(name, p, short)

kernel/params.c

@@ -171,6 +171,7 @@ int parse_args(const char *name,
 		return sprintf(buffer, format, *((type *)kp->arg));	\
 	}
 
+STANDARD_PARAM_DEF(byte, unsigned char, "%c", unsigned long, simple_strtoul);
 STANDARD_PARAM_DEF(short, short, "%hi", long, simple_strtol);
 STANDARD_PARAM_DEF(ushort, unsigned short, "%hu", unsigned long, simple_strtoul);
 STANDARD_PARAM_DEF(int, int, "%i", long, simple_strtol);
@@ -339,6 +340,8 @@ int param_set_copystring(const char *val, struct kernel_param *kp)
 	return 0;
 }
 
+EXPORT_SYMBOL(param_set_byte);
+EXPORT_SYMBOL(param_get_byte);
 EXPORT_SYMBOL(param_set_short);
 EXPORT_SYMBOL(param_get_short);
 EXPORT_SYMBOL(param_set_ushort);