kpatch/0041-livepatch-patch-hook-fix-kpatch-build-error-which-do.patch
tangbin 3459da160d livepatch-patch-hook: fix kpatch-build error which do not support ftrace
Signed-off-by: tangbin <tangbin@cmss.chinamobile.com>
2022-09-05 13:13:34 -04:00

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From ec538d436364293b15e41f3c2c2a8ab389c7b043 Mon Sep 17 00:00:00 2001
From: tangbin <tangbin@cmss.chinamobile.com>
Date: Mon, 5 Sep 2022 12:09:06 -0400
Subject: [PATCH] livepatch-patch-hook: fix kpatch-build error which do not
support ftrace
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
When using the kernel 5.10.0-60.18.0.50.oe2203 in x86_64, and chose the
livepatch with ftrace, it will show not support for this feature, which
is not allowed, the error displays as follows:
In file included from /root/.kpatch/tmp/patch/patch-hook.c:21:
/root/.kpatch/tmp/patch/livepatch-patch-hook.c: In function patch_init:
/root/.kpatch/tmp/patch/livepatch-patch-hook.c:606:8: error: implicit declaration of function klp_register_patch; did you mean klp_enable_patch? [-Werror=implicit-function-declaration]
606 | ret = klp_register_patch(lpatch);
| ^~~~~~~~~~~~~~~~~~
| klp_enable_patch
So fix this problem.
Signed-off-by: tangbin <tangbin@cmss.chinamobile.com>
---
kmod/patch/livepatch-patch-hook.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kmod/patch/livepatch-patch-hook.c b/kmod/patch/livepatch-patch-hook.c
index b565a6a..5d8780c 100644
--- a/kmod/patch/livepatch-patch-hook.c
+++ b/kmod/patch/livepatch-patch-hook.c
@@ -70,6 +70,8 @@
RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8, 2)
# define HAVE_SIMPLE_ENABLE
# endif
+# elif (defined(CONFIG_LIVEPATCH_FTRACE))
+# define HAVE_SIMPLE_ENABLE
#endif
#ifdef RHEL_RELEASE_CODE
--
2.18.4