[SPARC64]: Fix sparse warnings wrt. __show_regs().

arch/sparc64/kernel/process.c:219:6: warning: symbol '__show_regs' was not declared. Should it be static?
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc64/kernel/kprobes.c

@@ -465,8 +465,6 @@ void __kprobes jprobe_return(void)
 
 extern void jprobe_return_trap_instruction(void);
 
-extern void __show_regs(struct pt_regs * regs);
-
 int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 {
 	u32 *addr = (u32 *) regs->tpc;

arch/sparc64/kernel/traps.c

@@ -1791,8 +1791,6 @@ static const char *sun4v_err_type_to_str(u32 type)
 	};
 }
 
-extern void __show_regs(struct pt_regs * regs);
-
 static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent, int cpu, const char *pfx, atomic_t *ocnt)
 {
 	int cnt;

include/asm-sparc64/ptrace.h

@@ -109,6 +109,7 @@ extern unsigned long profile_pc(struct pt_regs *);
 #define profile_pc(regs) instruction_pointer(regs)
 #endif
 extern void show_regs(struct pt_regs *);
+extern void __show_regs(struct pt_regs *);
 #endif
 
 #else /* __ASSEMBLY__ */