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x86/dumpstack: Remove unnecessary stack pointer arguments

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When calling show_stack_log_lvl() or dump_trace() with a regs argument,
providing a stack pointer or frame pointer is redundant.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>d
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Byungchul Park <byungchul.park@lge.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nilay Vaish <nilayvaish@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1694e2e955e3b9a73a3c3d5ba2634344014dd550.1472057064.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Josh Poimboeuf 2016-08-24 11:50:18 -05:00 • committed by Ingo Molnar
parent 4b8afafbe7
commit 5a8ff54c26
4 changed files with 4 additions and 10 deletions
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2
arch/x86/kernel/dumpstack.c
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@ -185,7 +185,7 @@ void show_stack(struct task_struct *task, unsigned long *sp)
void show_stack_regs(struct pt_regs *regs)
{
show_stack_log_lvl(current, regs, (unsigned long *)regs->sp, regs->bp, "");
show_stack_log_lvl(current, regs, NULL, 0, "");
}
static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;