[PATCH 1/6] arm64: stacktrace: remove NULL task check from unwind_frame()

[Mark Rutland]

From: "Madhavan T. Venkataraman" <madvenka at linux.microsoft.com>

Currently, there is a check for a NULL task in unwind_frame(). It is not
needed since all current callers pass a non-NULL task.

There should be no functional change as a result of this patch.

Signed-off-by: Madhavan T. Venkataraman <madvenka at linux.microsoft.com>
Reviewed-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Mark Rutland <mark.rutland at arm.com>
---
 arch/arm64/kernel/stacktrace.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index e4103e085681..94932ade5c79 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -70,9 +70,6 @@ static int notrace unwind_frame(struct task_struct *tsk,
 	unsigned long fp = frame->fp;
 	struct stack_info info;
 
-	if (!tsk)
-		tsk = current;
-
 	/* Final frame; nothing to unwind */
 	if (fp == (unsigned long)task_pt_regs(tsk)->stackframe)
 		return -ENOENT;
-- 
2.30.2