linux-kernel - [PATCH v2 1/2] kprobes: Initialize kprobes at postcore

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Message-Id: <155851394736.15728.13626739508905120098.stgit@devnote2>
Date:   Wed, 22 May 2019 17:32:27 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        "Naveen N . Rao" <naveen.n.rao@...ux.ibm.com>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org
Subject: [PATCH v2 1/2] kprobes: Initialize kprobes at postcore_initcall

Initialize kprobes at postcore_initcall level instead of module_init
since kprobes is not a module, and it depends on only subsystems
initialized in core_initcall.
This will allow ftrace kprobe event to add new events when it is
initializing because ftrace kprobe event is initialized at
later initcall level.

Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
---
  Changes in v2
   - use postcore_initcall instead of subsys_initcall
---
 kernel/kprobes.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index c83e54727131..5d51dd84b1a2 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2291,6 +2291,7 @@ static int __init init_kprobes(void)
 		init_test_probes();
 	return err;
 }
+postcore_initcall(init_kprobes);
 
 #ifdef CONFIG_DEBUG_FS
 static void report_probe(struct seq_file *pi, struct kprobe *p,
@@ -2616,5 +2617,3 @@ static int __init debugfs_kprobe_init(void)
 
 late_initcall(debugfs_kprobe_init);
 #endif /* CONFIG_DEBUG_FS */
-
-module_init(init_kprobes);