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Date:   Wed, 8 May 2019 04:20:41 -0700
From:   tip-bot for Andi Kleen <tipbot@zytor.com>
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To:     linux-tip-commits@vger.kernel.org
Subject: [tip:x86/urgent] x86/kprobes: Make trampoline_handler() global and
 visible
Git-Commit-ID: 0e72499c3cc0cead32f88b94a02204d2b80768bf
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Commit-ID:  0e72499c3cc0cead32f88b94a02204d2b80768bf
Gitweb:     https://git.kernel.org/tip/0e72499c3cc0cead32f88b94a02204d2b80768bf
Author:     Andi Kleen <ak@linux.intel.com>
AuthorDate: Fri, 29 Mar 2019 17:47:41 -0700
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Wed, 8 May 2019 13:13:58 +0200

x86/kprobes: Make trampoline_handler() global and visible

This function is referenced from assembler, so in LTO
it needs to be global and visible to not be optimized away.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lkml.kernel.org/r/20190330004743.29541-7-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/kprobes/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index cf52ee0d8711..9e4fa2484d10 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -768,7 +768,7 @@ static struct kprobe kretprobe_kprobe = {
 /*
  * Called from kretprobe_trampoline
  */
-static __used void *trampoline_handler(struct pt_regs *regs)
+__used __visible void *trampoline_handler(struct pt_regs *regs)
 {
 	struct kprobe_ctlblk *kcb;
 	struct kretprobe_instance *ri = NULL;