[PATCH] uml: make signal handlers static

A bunch of the signal handlers can be made static.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/um/include/kern_util.h

@@ -87,7 +87,6 @@ extern void timer_irq(union uml_pt_regs *regs);
 extern void unprotect_stack(unsigned long stack);
 extern void do_uml_exitcalls(void);
 extern int attach_debugger(int idle_pid, int pid, int stop);
-extern void bad_segv(struct faultinfo fi, unsigned long ip);
 extern int config_gdb(char *str);
 extern int remove_gdb(void);
 extern char *uml_strdup(char *string);
@@ -103,8 +102,6 @@ extern int clear_user_proc(void *buf, int size);
 extern int copy_to_user_proc(void *to, void *from, int size);
 extern int copy_from_user_proc(void *to, void *from, int size);
 extern int strlen_user_proc(char *str);
-extern void bus_handler(int sig, union uml_pt_regs *regs);
-extern void winch(int sig, union uml_pt_regs *regs);
 extern long execute_syscall(void *r);
 extern int smp_sigio_handler(void);
 extern void *get_current(void);
@@ -119,7 +116,6 @@ extern void time_init_kern(void);
 
 /* Are we disallowed to sleep? Used to choose between GFP_KERNEL and GFP_ATOMIC. */
 extern int __cant_sleep(void);
-extern void segv_handler(int sig, union uml_pt_regs *regs);
 extern void sigio_handler(int sig, union uml_pt_regs *regs);
 
 #endif

arch/um/kernel/trap.c

@@ -128,7 +128,18 @@ int handle_page_fault(unsigned long address, unsigned long ip,
 	goto out;
 }
 
-void segv_handler(int sig, union uml_pt_regs *regs)
+static void bad_segv(struct faultinfo fi, unsigned long ip)
+{
+	struct siginfo si;
+
+	si.si_signo = SIGSEGV;
+	si.si_code = SEGV_ACCERR;
+	si.si_addr = (void __user *) FAULT_ADDRESS(fi);
+	current->thread.arch.faultinfo = fi;
+	force_sig_info(SIGSEGV, &si, current);
+}
+
+static void segv_handler(int sig, union uml_pt_regs *regs)
 {
 	struct faultinfo * fi = UPT_FAULTINFO(regs);
 
@@ -205,17 +216,6 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, void *sc)
 	return(0);
 }
 
-void bad_segv(struct faultinfo fi, unsigned long ip)
-{
-	struct siginfo si;
-
-	si.si_signo = SIGSEGV;
-	si.si_code = SEGV_ACCERR;
-	si.si_addr = (void __user *) FAULT_ADDRESS(fi);
-	current->thread.arch.faultinfo = fi;
-	force_sig_info(SIGSEGV, &si, current);
-}
-
 void relay_signal(int sig, union uml_pt_regs *regs)
 {
 	if(arch_handle_signal(sig, regs))
@@ -232,14 +232,14 @@ void relay_signal(int sig, union uml_pt_regs *regs)
 	force_sig(sig, current);
 }
 
-void bus_handler(int sig, union uml_pt_regs *regs)
+static void bus_handler(int sig, union uml_pt_regs *regs)
 {
 	if(current->thread.fault_catcher != NULL)
 		do_longjmp(current->thread.fault_catcher, 1);
 	else relay_signal(sig, regs);
 }
 
-void winch(int sig, union uml_pt_regs *regs)
+static void winch(int sig, union uml_pt_regs *regs)
 {
 	do_IRQ(WINCH_IRQ, regs);
 }