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[TRIVIAL PATCH 2/2] kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL

From "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Newsgroups linux.kernel
Subject [TRIVIAL PATCH 2/2] kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL
Date 2017-03-08 18:10 +0100
Message-ID <tiNg6-18z-15@gated-at.bofh.it> (permalink)
References <tiNg6-18z-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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commit fc62d0207ae0 ("kprobes: Introduce weak variant of
kprobe_exceptions_notify()") used the __kprobes annotation to exclude
kprobe_exceptions_notify from being probed. Since NOKPROBE_SYMBOL() is a
better way to do this enabling the symbol to be discovered as being
blacklisted, change over to using NOKPROBE_SYMBOL().

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
---
 kernel/kprobes.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 699c5bc51a92..b52d952d6d41 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1740,11 +1740,12 @@ void unregister_kprobes(struct kprobe **kps, int num)
 }
 EXPORT_SYMBOL_GPL(unregister_kprobes);
 
-int __weak __kprobes kprobe_exceptions_notify(struct notifier_block *self,
-					      unsigned long val, void *data)
+int __weak kprobe_exceptions_notify(struct notifier_block *self,
+					unsigned long val, void *data)
 {
 	return NOTIFY_DONE;
 }
+NOKPROBE_SYMBOL(kprobe_exceptions_notify);
 
 static struct notifier_block kprobe_exceptions_nb = {
 	.notifier_call = kprobe_exceptions_notify,
-- 
2.11.1

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[TRIVIAL PATCH 2/2] kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> - 2017-03-08 18:10 +0100
  Re: [TRIVIAL PATCH 2/2] kprobes: Convert kprobe_exceptions_notify  to use NOKPROBE_SYMBOL Masami Hiramatsu <mhiramat@kernel.org> - 2017-03-09 09:00 +0100

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