um/sysrq: remove needless variable sp

`sp' is a needless excercise here.

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Link: http://lkml.kernel.org/r/20200418201944.482088-36-dima@arista.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index c71b5ef..c831a1c 100644 (file)
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -27,7 +27,6 @@ static const struct stacktrace_ops stackops = {
 
 void show_stack(struct task_struct *task, unsigned long *stack)
 {
-       unsigned long *sp = stack;
        struct pt_regs *segv_regs = current->thread.segv_regs;
        int i;
 
@@ -38,10 +37,9 @@ void show_stack(struct task_struct *task, unsigned long *stack)
        }
 
        if (!stack)
-               sp = get_stack_pointer(task, segv_regs);
+               stack = get_stack_pointer(task, segv_regs);
 
        pr_info("Stack:\n");
-       stack = sp;
        for (i = 0; i < 3 * STACKSLOTS_PER_LINE; i++) {
                if (kstack_end(stack))
                        break;