[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>
diff --git a/include/asm-sparc64/ptrace.h b/include/asm-sparc64/ptrace.h
index 67341cf..6da1978 100644
--- a/include/asm-sparc64/ptrace.h
+++ b/include/asm-sparc64/ptrace.h
@@ -109,6 +109,7 @@
 #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__ */