kernel: rename show_stack_loglvl() => show_stack()

Now the last users of show_stack() got converted to use an explicit log
level, show_stack_loglvl() can drop it's redundant suffix and become once
again well known show_stack().

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20200418201944.482088-51-dima@arista.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/riscv/kernel/stacktrace.c

@@ -105,18 +105,12 @@ static bool print_trace_address(unsigned long pc, void *arg)
 	return false;
 }
 
-void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
-		       const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl)
 {
 	pr_cont("Call Trace:\n");
 	walk_stackframe(task, NULL, print_trace_address, (void *)loglvl);
 }
 
-void show_stack(struct task_struct *task, unsigned long *sp)
-{
-	show_stack_loglvl(task, sp, KERN_DEFAULT);
-}
-
 static bool save_wchan(unsigned long pc, void *arg)
 {
 	if (!in_sched_functions(pc)) {