arc, print-fatal-signals: reduce duplicated information

After the recent generic debug info on dump_stack() and friends, arc
is printing duplicate information on debug dumps.

 [ARCLinux]$ ./crash
 crash/50: potentially unexpected fatal signal 11.	<-- [1]
 /sbin/crash, TGID 50					<-- [2]
 Pid: 50, comm: crash Not tainted 3.9.0-rc4+ torvalds#132 	<-- [3]
 ...

Remove them.

[[email protected]: updated patch desc]
Signed-off-by: Vineet Gupta <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Fengguang Wu <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Jesper Nilsson <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Mike Frysinger <[email protected]>
Cc: Sam Ravnborg <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

arch/arc/kernel/troubleshoot.c

@@ -71,7 +71,7 @@ void print_task_path_n_nm(struct task_struct *tsk, char *buf)
 	}
 
 done:
-	pr_info("%s, TGID %u\n", path_nm, tsk->tgid);
+	pr_info("Path: %s\n", path_nm);
 }
 EXPORT_SYMBOL(print_task_path_n_nm);
 

kernel/signal.c

@@ -1160,8 +1160,7 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
 static void print_fatal_signal(int signr)
 {
 	struct pt_regs *regs = signal_pt_regs();
-	printk(KERN_INFO "%s/%d: potentially unexpected fatal signal %d.\n",
-		current->comm, task_pid_nr(current), signr);
+	printk(KERN_INFO "potentially unexpected fatal signal %d.\n", signr);
 
 #if defined(__i386__) && !defined(__arch_um__)
 	printk(KERN_INFO "code at %08lx: ", regs->ip);