From: Steven Rostedt (Red Hat) Date: Wed, 25 Jun 2014 15:54:03 +0000 (-0400) Subject: ftrace: Remove function_trace_stop check from list func X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1d48d5960f9f24b8afd5b1dbb10bfe17b5f29a35;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git ftrace: Remove function_trace_stop check from list func function_trace_stop is no longer used to stop function tracing. Remove the check from __ftrace_ops_list_func(). Also, call FTRACE_WARN_ON() instead of setting function_trace_stop if a ops has no func to call. Reviewed-by: Masami Hiramatsu Signed-off-by: Steven Rostedt --- diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 0fa1b87db95c..70abf97d6e84 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -4720,9 +4720,6 @@ __ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip, struct ftrace_ops *op; int bit; - if (function_trace_stop) - return; - bit = trace_test_and_set_recursion(TRACE_LIST_START, TRACE_LIST_MAX); if (bit < 0) return; @@ -4734,9 +4731,8 @@ __ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip, preempt_disable_notrace(); do_for_each_ftrace_op(op, ftrace_ops_list) { if (ftrace_ops_test(op, ip, regs)) { - if (WARN_ON(!op->func)) { - function_trace_stop = 1; - printk("op=%p %pS\n", op, op); + if (FTRACE_WARN_ON(!op->func)) { + pr_warn("op=%p %pS\n", op, op); goto out; } op->func(ip, parent_ip, op, regs);