arch/arm/include/asm/elf.h: forward-declare the task-struct

iop32x_defconfig:

In file included from include/linux/elf.h:7,
                 from kernel/elfcore.c:1:
arch/arm/include/asm/elf.h:101: warning: "struct task_struct" declared inside parameter list
arch/arm/include/asm/elf.h:101: warning: its scope is only this definition or declaration, which is probably not what you want
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/include/asm/elf.h

@@ -9,6 +9,8 @@
 #include <asm/ptrace.h>
 #include <asm/user.h>
 
+struct task_struct;
+
 typedef unsigned long elf_greg_t;
 typedef unsigned long elf_freg_t[3];