[tip:perf/core] kprobes: Remove pointless BUG_ON() from add_new_kprobe()

[tip-bot for Masami Hiramatsu]

Commit-ID:  c72e6742f62d7bb82a77a41ca53940cb8f73e60f
Gitweb:     https://git.kernel.org/tip/c72e6742f62d7bb82a77a41ca53940cb8f73e60f
Author:     Masami Hiramatsu <mhiramat@xxxxxxxxxx>
AuthorDate: Tue, 11 Sep 2018 19:19:43 +0900
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 12 Sep 2018 08:01:15 +0200

kprobes: Remove pointless BUG_ON() from add_new_kprobe()

Before calling add_new_kprobe(), aggr_probe's GONE
flag and kprobe GONE flag are cleared. We don't need
to worry about that flag at this point.

Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@xxxxxxxxx>
Cc: David S . Miller <davem@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Naveen N . Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: 153666118298.21306.4915366706875652652.stgit@devbox">http://lkml.kernel.org/r/153666118298.21306.4915366706875652652.stgit@devbox
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 kernel/kprobes.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index d1edd8d5641e..231569e1e2c8 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1259,8 +1259,6 @@ NOKPROBE_SYMBOL(cleanup_rp_inst);
 /* Add the new probe to ap->list */
 static int add_new_kprobe(struct kprobe *ap, struct kprobe *p)
 {
-	BUG_ON(kprobe_gone(ap) || kprobe_gone(p));
-
 	if (p->post_handler)
 		unoptimize_kprobe(ap, true);	/* Fall back to normal kprobe */