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authorThomas Gleixner <tglx@linutronix.de>2019-04-10 12:28:00 +0200
committerThomas Gleixner <tglx@linutronix.de>2019-04-14 19:58:28 +0200
commitfa9833992d5ff3c0d6e81d708bec363bce2fb54c (patch)
tree9bd484a2018bd39fd053c6c01d76f2f7bfc2517a /arch/riscv
parentf8a9a269c28ddd5d741e747ceca753af01c828f2 (diff)
riscv/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 <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Alexander Potapenko <glider@google.com> Cc: linux-riscv@lists.infradead.org Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Link: https://lkml.kernel.org/r/20190410103644.131061192@linutronix.de
Diffstat (limited to 'arch/riscv')
-rw-r--r--arch/riscv/kernel/stacktrace.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/riscv/kernel/stacktrace.c b/arch/riscv/kernel/stacktrace.c
index a4b1d94371a0..4d403274c2e8 100644
--- a/arch/riscv/kernel/stacktrace.c
+++ b/arch/riscv/kernel/stacktrace.c
@@ -169,8 +169,6 @@ static bool save_trace(unsigned long pc, void *arg)
void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
{
walk_stackframe(tsk, NULL, save_trace, trace);
- if (trace->nr_entries < trace->max_entries)
- trace->entries[trace->nr_entries++] = ULONG_MAX;
}
EXPORT_SYMBOL_GPL(save_stack_trace_tsk);