sh: Use early_param() for earlyprintk parsing.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/early_printk.c

@@ -144,16 +144,16 @@ static struct console *early_console =
 	;
 
 static int __initdata keep_early;
+static int early_console_initialized;
 
-int __init setup_early_printk(char *opt)
+int __init setup_early_printk(char *buf)
 {
-	char *space;
-	char buf[256];
+	if (!buf)
+		return 0;
 
-	strlcpy(buf, opt, sizeof(buf));
-	space = strchr(buf, ' ');
-	if (space)
-		*space = 0;
+	if (early_console_initialized)
+		return 0;
+	early_console_initialized = 1;
 
 	if (strstr(buf, "keep"))
 		keep_early = 1;
@@ -175,12 +175,14 @@ int __init setup_early_printk(char *opt)
 	if (likely(early_console))
 		register_console(early_console);
 
-	return 1;
+	return 0;
 }
-__setup("earlyprintk=", setup_early_printk);
+early_param("earlyprintk", setup_early_printk);
 
 void __init disable_early_printk(void)
 {
+	if (!early_console_initialized || !early_console)
+		return;
 	if (!keep_early) {
 		printk("disabling early console\n");
 		unregister_console(early_console);

arch/sh/kernel/setup.c

@@ -84,8 +84,7 @@ unsigned long memory_start, memory_end;
 
 static inline void parse_cmdline (char ** cmdline_p, char mv_name[MV_NAME_SIZE],
 				  struct sh_machine_vector** mvp,
-				  unsigned long *mv_io_base,
-				  int *mv_mmio_enable)
+				  unsigned long *mv_io_base)
 {
 	char c = ' ', *to = command_line, *from = COMMAND_LINE;
 	int len = 0;
@@ -112,23 +111,6 @@ static inline void parse_cmdline (char ** cmdline_p, char mv_name[MV_NAME_SIZE],
 			}
 		}
 
-#ifdef CONFIG_EARLY_PRINTK
-		if (c == ' ' && !memcmp(from, "earlyprintk=", 12)) {
-			char *ep_end;
-
-			if (to != command_line)
-				to--;
-
-			from += 12;
-			ep_end = strchr(from, ' ');
-
-			setup_early_printk(from);
-			printk("early console enabled\n");
-
-			from = ep_end;
-		}
-#endif
-
 		if (c == ' ' && !memcmp(from, "sh_mv=", 6)) {
 			char* mv_end;
 			char* mv_comma;
@@ -145,7 +127,6 @@ static inline void parse_cmdline (char ** cmdline_p, char mv_name[MV_NAME_SIZE],
 				int ints[3];
 				get_options(mv_comma+1, ARRAY_SIZE(ints), ints);
 				*mv_io_base = ints[1];
-				*mv_mmio_enable = ints[2];
 				mv_len = mv_comma - from;
 			} else {
 				mv_len = mv_end - from;
@@ -158,6 +139,7 @@ static inline void parse_cmdline (char ** cmdline_p, char mv_name[MV_NAME_SIZE],
 
 			*mvp = get_mv_byname(mv_name);
 		}
+
 		c = *(from++);
 		if (!c)
 			break;
@@ -177,9 +159,8 @@ static int __init sh_mv_setup(char **cmdline_p)
 	struct sh_machine_vector *mv = NULL;
 	char mv_name[MV_NAME_SIZE] = "";
 	unsigned long mv_io_base = 0;
-	int mv_mmio_enable = 0;
 
-	parse_cmdline(cmdline_p, mv_name, &mv, &mv_io_base, &mv_mmio_enable);
+	parse_cmdline(cmdline_p, mv_name, &mv, &mv_io_base);
 
 #ifdef CONFIG_SH_UNKNOWN
 	if (mv == NULL) {
@@ -258,6 +239,7 @@ void __init setup_arch(char **cmdline_p)
 
 	sh_mv_setup(cmdline_p);
 
+
 	/*
 	 * Find the highest page frame number we have available
 	 */
@@ -305,6 +287,7 @@ void __init setup_arch(char **cmdline_p)
 				  PFN_PHYS(pages));
 	}
 
+
 	/*
 	 * Reserve the kernel text and
 	 * Reserve the bootmem bitmap. We do this in two steps (first step