x86/unwind: Remove unused 'sp' parameter in unwind_dump()

The 'sp' parameter to unwind_dump() is unused.  Remove it.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/08cb36b004629f6bbcf44c267ae4a609242ebd0b.1492520933.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/kernel/unwind_frame.c b/arch/x86/kernel/unwind_frame.c
index 5d26374e9d648416de99fdf916e057e211b9dc77..bda82df34c7b1e79fa3ebcd974c676a4b9fa8001 100644 (file)
--- a/arch/x86/kernel/unwind_frame.c
+++ b/arch/x86/kernel/unwind_frame.c
@@ -25,11 +25,11 @@
        val;                                            \
 })
 
-static void unwind_dump(struct unwind_state *state, unsigned long *sp)
+static void unwind_dump(struct unwind_state *state)
 {
        static bool dumped_before = false;
        bool prev_zero, zero = false;
-       unsigned long word;
+       unsigned long word, *sp;
 
        if (dumped_before)
                return;
@@ -287,13 +287,13 @@ bad_address:
                        "WARNING: kernel stack regs at %p in %s:%d has bad 'bp' value %p\n",
                        state->regs, state->task->comm,
                        state->task->pid, next_bp);
-               unwind_dump(state, (unsigned long *)state->regs);
+               unwind_dump(state);
        } else {
                printk_deferred_once(KERN_WARNING
                        "WARNING: kernel stack frame pointer at %p in %s:%d has bad value %p\n",
                        state->bp, state->task->comm,
                        state->task->pid, next_bp);
-               unwind_dump(state, state->bp);
+               unwind_dump(state);
        }
 the_end:
        state->stack_info.type = STACK_TYPE_UNKNOWN;