sparc: use _start for the start entry (like 64 bit does)

We use "_start" in 64 bit - do the same in 32 bit.
It is always good to be consistent.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc/boot/piggyback_32.c

@@ -73,9 +73,9 @@ static void usage(void)
 
 static int start_line(const char *line)
 {
-	if (strcmp(line + 8, " T start\n") == 0)
+	if (strcmp(line + 8, " T _start\n") == 0)
 		return 1;
-	else if (strcmp(line + 16, " T start\n") == 0)
+	else if (strcmp(line + 16, " T _start\n") == 0)
 		return 1;
 	return 0;
 }
@@ -92,7 +92,7 @@ static int end_line(const char *line)
 /*
  * Find address for start and end in System.map.
  * The file looks like this:
- * f0004000 T start
+ * f0004000 T _start
  * f0379f79 A _end
  * 1234567890123456
  * ^coloumn 1

arch/sparc/kernel/head_32.S

@@ -73,12 +73,11 @@ sun4e_notsup:
 
 	/* The Sparc trap table, bootloader gives us control at _start. */
 	__HEAD
-	.globl	start, _stext, _start, __stext
+	.globl	_stext, _start, __stext
 	.globl  trapbase
 _start:   /* danger danger */
 __stext:
 _stext:
-start:
 trapbase:
 #ifdef CONFIG_SMP
 trapbase_cpu0:

arch/sparc/mm/sun4c.c

@@ -435,16 +435,14 @@ void __init sun4c_probe_memerr_reg(void)
 
 static inline void sun4c_init_ss2_cache_bug(void)
 {
-	extern unsigned long start;
-
 	if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS2)) ||
 	    (idprom->id_machtype == (SM_SUN4C | SM_4C_IPX)) ||
 	    (idprom->id_machtype == (SM_SUN4C | SM_4C_ELC))) {
 		/* Whee.. */
 		printk("SS2 cache bug detected, uncaching trap table page\n");
-		sun4c_flush_page((unsigned int) &start);
-		sun4c_put_pte(((unsigned long) &start),
-			(sun4c_get_pte((unsigned long) &start) | _SUN4C_PAGE_NOCACHE));
+		sun4c_flush_page((unsigned int) &_start);
+		sun4c_put_pte(((unsigned long) &_start),
+			(sun4c_get_pte((unsigned long) &_start) | _SUN4C_PAGE_NOCACHE));
 	}
 }