[MIPS] Replace redundant declarations of _end by <asm/sections.h>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/dec/boot/decstation.c

 /*
  * arch/mips/dec/decstation.c
  */
+#include <asm/sections.h>
 
 #define RELOC
 #define INITRD
@@ -24,7 +25,7 @@
 #define INITRD_START (*(unsigned long *) (PARAM+0x218))
 #define INITRD_SIZE (*(unsigned long *) (PARAM+0x21c))
 
-extern int _ftext, _end;		/* begin and end of kernel image */
+extern int _ftext;			/* begin and end of kernel image */
 extern void kernel_entry(int, char **, unsigned long, int *);
 
 void * memcpy(void * dest, const void *src, unsigned int count)

arch/mips/ite-boards/ivr/init.c

@@ -34,13 +34,13 @@
 #include <asm/bootinfo.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
+#include <asm/sections.h>
 #include <asm/it8172/it8172.h>
 #include <asm/it8172/it8172_dbg.h>
 
 int prom_argc;
 char **prom_argv, **prom_envp;
 
-extern char _end;
 extern void  __init prom_init_cmdline(void);
 extern unsigned long __init prom_get_memsize(void);
 extern void __init it8172_init_ram_resource(unsigned long memsize);

arch/mips/ite-boards/qed-4n-s01b/init.c

@@ -34,13 +34,13 @@
 #include <asm/bootinfo.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
+#include <asm/sections.h>
 #include <asm/it8172/it8172.h>
 #include <asm/it8172/it8172_dbg.h>
 
 int prom_argc;
 char **prom_argv, **prom_envp;
 
-extern char _end;
 extern void  __init prom_init_cmdline(void);
 extern unsigned long __init prom_get_memsize(void);
 extern void __init it8172_init_ram_resource(unsigned long memsize);

arch/mips/mips-boards/generic/memory.c

@@ -26,6 +26,7 @@
 
 #include <asm/bootinfo.h>
 #include <asm/page.h>
+#include <asm/sections.h>
 
 #include <asm/mips-boards/prom.h>
 
@@ -46,9 +47,6 @@ static char *mtypes[3] = {
 };
 #endif
 
-/* References to section boundaries */
-extern char _end;
-
 struct prom_pmemblock * __init prom_getmdesc(void)
 {
 	char *memsize_str;
@@ -106,7 +104,7 @@ struct prom_pmemblock * __init prom_getmdesc(void)
 
 	mdesc[3].type = yamon_dontuse;
 	mdesc[3].base = 0x00100000;
-	mdesc[3].size = CPHYSADDR(PAGE_ALIGN(&_end)) - mdesc[3].base;
+	mdesc[3].size = CPHYSADDR(PAGE_ALIGN((unsigned long)&_end)) - mdesc[3].base;
 
 	mdesc[4].type = yamon_free;
 	mdesc[4].base = CPHYSADDR(PAGE_ALIGN(&_end));

arch/mips/mips-boards/sim/sim_mem.c

@@ -21,6 +21,7 @@
 
 #include <asm/bootinfo.h>
 #include <asm/page.h>
+#include <asm/sections.h>
 
 #include <asm/mips-boards/prom.h>
 
@@ -39,9 +40,6 @@ static char *mtypes[3] = {
 };
 #endif
 
-/* References to section boundaries */
-extern char _end;
-
 struct prom_pmemblock * __init prom_getmdesc(void)
 {
 	unsigned int memsize;