kpatch/0020-use-original-reloc-for-symbols-exported-from-modules.patch

From 2cf99367ed7cdf4f0b2a929f6bddd7ef8c8a6441 Mon Sep 17 00:00:00 2001
From: Zhipeng Xie <xiezhipeng1@huawei.com>
Date: Thu, 12 Mar 2020 05:10:55 -0400
Subject: [PATCH 20/38] use original reloc for symbols exported from modules

symbols exported in a patch will generate a symbol version with
object module name in Module.symvers, but the symbol is actually
in patch module which cause livepatch symbol lookup failed.

Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com>
---
 kpatch-build/create-diff-object.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/kpatch-build/create-diff-object.c b/kpatch-build/create-diff-object.c
index 83836f6..2a3a5de 100644
--- a/kpatch-build/create-diff-object.c
+++ b/kpatch-build/create-diff-object.c
@@ -3533,14 +3533,7 @@ static bool need_klp_reloc(struct kpatch_elf *kelf, struct lookup_table *table,
 			return false;
 		}
 
-		/*
-		 * The symbol is exported by the to-be-patched module, or by
-		 * another module which the patched module depends on.  Use a
-		 * klp relocation because of late module loading: the patch
-		 * module may be loaded before the to-be-patched (or other)
-		 * module.
-		 */
-		return true;
+		return false;
 	}
 
 	if (symbol.global) {
-- 
2.33.0