[PATCH 3/3] x86/unwind: remove unused 'sp' argument in unwind_dump()

From: Josh Poimboeuf
Date: Tue Apr 18 2017 - 09:13:57 EST


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

Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
arch/x86/kernel/unwind_frame.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/unwind_frame.c b/arch/x86/kernel/unwind_frame.c
index 5d26374..bda82df 100644
--- 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 @@ bool unwind_next_frame(struct unwind_state *state)
"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;
--
2.7.4