From 4b73556a8964836959a1bdeac816619eb428fdcc Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@stackframe.org>
Date: Wed, 5 Jun 2019 22:32:21 +0200
Subject: [PATCH] compiler.h: add CC_USING_PATCHABLE_FUNCTION_ENTRY

commit 2809b392a62ae307da058a52d451b2fc3ce4de7e upstream.

This can be used for architectures implementing dynamic
ftrace via -fpatchable-function-entry.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Zou Cao<zoucao@linux.alibaba.com>
Acked-by: Baoyou Xie <xie.baoyou@linux.alibaba.com>
---
 include/linux/compiler_types.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
index 2b8ed70c4c77..61e3212457db 100644
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -230,6 +230,8 @@ struct ftrace_likely_data {
 
 #if defined(CC_USING_HOTPATCH) && !defined(__CHECKER__)
 #define notrace			__attribute__((hotpatch(0, 0)))
+#elif defined(CC_USING_PATCHABLE_FUNCTION_ENTRY)
+#define notrace			__attribute__((patchable_function_entry(0, 0)))
 #else
 #define notrace			__attribute__((no_instrument_function))
 #endif
-- 
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