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kprobes: Introduce weak variant of kprobe_exceptions_notify()

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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>
This commit is contained in:
Naveen N. Rao 2017-02-08 01:24:14 +05:30 committed by Michael Ellerman
parent 496e9cb5b2
commit fc62d0207a
1 changed files with 6 additions and 0 deletions
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6
kernel/kprobes.c
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@ -1705,6 +1705,12 @@ void unregister_kprobes(struct kprobe **kps, int num)
} }
EXPORT_SYMBOL_GPL(unregister_kprobes); 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 = { static struct notifier_block kprobe_exceptions_nb = {
.notifier_call = kprobe_exceptions_notify, .notifier_call = kprobe_exceptions_notify,
.priority = 0x7fffffff /* we need to be notified first */ .priority = 0x7fffffff /* we need to be notified first */