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authorNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>2017-02-08 01:24:14 +0530
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-10 14:42:49 +1100
commitfc62d0207ae0ebc9d19df68394c0dc925b4a92d1 (patch)
tree09a4650df470622b431d22c20457e2f6d0247b22 /kernel/kprobes.c
parent496e9cb5b2aa2ba303d2bbd08518f9be2219ab4b (diff)
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kprobes: Introduce weak variant of kprobe_exceptions_notify()
kprobe_exceptions_notify() is not used on some of the architectures such as arm[64] and powerpc anymore. Introduce a weak variant for such architectures. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'kernel/kprobes.c')
-rw-r--r--kernel/kprobes.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 43460104f119..60a702a05684 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1705,6 +1705,12 @@ 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)
+{
+ return NOTIFY_DONE;
+}
+
static struct notifier_block kprobe_exceptions_nb = {
.notifier_call = kprobe_exceptions_notify,
.priority = 0x7fffffff /* we need to be notified first */