From b01f6d368d296cac099383a3eb200e135420f885 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 10 Apr 2019 12:27:58 +0200 Subject: [PATCH] sh/stacktrace: Remove the pointless ULONG_MAX marker Terminating the last trace entry with ULONG_MAX is a completely pointless exercise and none of the consumers can rely on it because it's inconsistently implemented across architectures. In fact quite some of the callers remove the entry and adjust stack_trace.nr_entries afterwards. Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) Cc: Josh Poimboeuf Cc: Andy Lutomirski Cc: Steven Rostedt Cc: Alexander Potapenko Cc: Rich Felker Cc: Yoshinori Sato Cc: Kuninori Morimoto Cc: linux-sh@vger.kernel.org Cc: Simon Horman Link: https://lkml.kernel.org/r/20190410103643.932464393@linutronix.de --- arch/sh/kernel/stacktrace.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/sh/kernel/stacktrace.c b/arch/sh/kernel/stacktrace.c index f3cb2cccb262..2950b19ad077 100644 --- a/arch/sh/kernel/stacktrace.c +++ b/arch/sh/kernel/stacktrace.c @@ -49,8 +49,6 @@ void save_stack_trace(struct stack_trace *trace) unsigned long *sp = (unsigned long *)current_stack_pointer; unwind_stack(current, NULL, sp, &save_stack_ops, trace); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL_GPL(save_stack_trace); @@ -84,7 +82,5 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) unsigned long *sp = (unsigned long *)tsk->thread.sp; unwind_stack(current, NULL, sp, &save_stack_ops_nosched, trace); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL_GPL(save_stack_trace_tsk);