From e4931b824a6f36cae9cc5632709f015cfa748a25 Mon Sep 17 00:00:00 2001 From: Yuntao Wang Date: Fri, 14 Jan 2022 21:10:52 +0800 Subject: tracing: Use trace_create_file() to simplify creation of tracefs entries Creating tracefs entries with tracefs_create_file() followed by pr_warn() is tedious and repetitive, we can use trace_create_file() to simplify this process and make the code more readable. Link: https://lkml.kernel.org/r/20220114131052.534382-1-ytcoode@gmail.com Acked-by: Masami Hiramatsu (Google) Signed-off-by: Yuntao Wang Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace_kprobe.c | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) (limited to 'kernel/trace/trace_kprobe.c') diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 47cebef78532..93507330462c 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -1907,25 +1907,18 @@ core_initcall(init_kprobe_trace_early); static __init int init_kprobe_trace(void) { int ret; - struct dentry *entry; ret = tracing_init_dentry(); if (ret) return 0; - entry = tracefs_create_file("kprobe_events", TRACE_MODE_WRITE, - NULL, NULL, &kprobe_events_ops); - /* Event list interface */ - if (!entry) - pr_warn("Could not create tracefs 'kprobe_events' entry\n"); + trace_create_file("kprobe_events", TRACE_MODE_WRITE, + NULL, NULL, &kprobe_events_ops); /* Profile interface */ - entry = tracefs_create_file("kprobe_profile", TRACE_MODE_READ, - NULL, NULL, &kprobe_profile_ops); - - if (!entry) - pr_warn("Could not create tracefs 'kprobe_profile' entry\n"); + trace_create_file("kprobe_profile", TRACE_MODE_READ, + NULL, NULL, &kprobe_profile_ops); setup_boot_kprobe_events(); -- cgit v1.2.3