From: Yafang Shao <laoar.shao@gmail.com>
To: jpoimboe@kernel.org, jikos@kernel.org, mbenes@suse.cz,
pmladek@suse.com, joe.lawrence@redhat.com, song@kernel.org
Cc: live-patching@vger.kernel.org, Yafang Shao <laoar.shao@gmail.com>
Subject: [PATCH v3 2/7] livepatch: Move klp_find_func() into core.h
Date: Sun, 7 Jun 2026 21:16:54 +0800 [thread overview]
Message-ID: <20260607131659.29281-3-laoar.shao@gmail.com> (raw)
In-Reply-To: <20260607131659.29281-1-laoar.shao@gmail.com>
This function will be used in other source file in the following patch.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
---
kernel/livepatch/core.c | 21 ---------------------
kernel/livepatch/core.h | 21 +++++++++++++++++++++
2 files changed, 21 insertions(+), 21 deletions(-)
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index 95117f7a5b00..6e15ae96a0a7 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -82,27 +82,6 @@ static bool klp_initialized(void)
return !!klp_root_kobj;
}
-static struct klp_func *klp_find_func(struct klp_object *obj,
- struct klp_func *old_func)
-{
- struct klp_func *func;
-
- klp_for_each_func(obj, func) {
- /*
- * Besides identical old_sympos, also consider old_sympos
- * of 0 and 1 are identical.
- */
- if ((func->old_name && strcmp(old_func->old_name, func->old_name) == 0) &&
- ((old_func->old_sympos == func->old_sympos) ||
- (old_func->old_sympos == 0 && func->old_sympos == 1) ||
- (old_func->old_sympos == 1 && func->old_sympos == 0))) {
- return func;
- }
- }
-
- return NULL;
-}
-
static struct klp_object *klp_find_object(struct klp_patch *patch,
struct klp_object *old_obj)
{
diff --git a/kernel/livepatch/core.h b/kernel/livepatch/core.h
index 38209c7361b6..8f01eae875eb 100644
--- a/kernel/livepatch/core.h
+++ b/kernel/livepatch/core.h
@@ -56,4 +56,25 @@ static inline void klp_post_unpatch_callback(struct klp_object *obj)
obj->callbacks.post_unpatch_enabled = false;
}
+static inline struct klp_func *klp_find_func(struct klp_object *obj,
+ struct klp_func *old_func)
+{
+ struct klp_func *func;
+
+ klp_for_each_func(obj, func) {
+ /*
+ * Besides identical old_sympos, also consider old_sympos
+ * of 0 and 1 are identical.
+ */
+ if ((func->old_name && strcmp(old_func->old_name, func->old_name) == 0) &&
+ ((old_func->old_sympos == func->old_sympos) ||
+ (old_func->old_sympos == 0 && func->old_sympos == 1) ||
+ (old_func->old_sympos == 1 && func->old_sympos == 0))) {
+ return func;
+ }
+ }
+
+ return NULL;
+}
+
#endif /* _LIVEPATCH_CORE_H */
--
2.52.0
next prev parent reply other threads:[~2026-06-07 13:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-07 13:16 [PATCH v3 0/7] livepatch: Introduce replace set support Yafang Shao
2026-06-07 13:16 ` [PATCH v3 1/7] livepatch: Fix NULL pointer dereference in klp_find_func() Yafang Shao
2026-06-07 13:16 ` Yafang Shao [this message]
2026-06-07 13:16 ` [PATCH v3 3/7] livepatch: Support scoped atomic replace using replace_set Yafang Shao
2026-06-07 13:33 ` sashiko-bot
2026-06-07 14:00 ` Yafang Shao
2026-06-07 13:16 ` [PATCH v3 4/7] livepatch: Deprecate stack_order Yafang Shao
2026-06-07 13:31 ` sashiko-bot
2026-06-07 13:16 ` [PATCH v3 5/7] selftests/livepatch: Update tests for replace_set Yafang Shao
2026-06-07 13:29 ` sashiko-bot
2026-06-07 13:16 ` [PATCH v3 6/7] selftests/livepatch: Add test for state ID conflict across replace_sets Yafang Shao
2026-06-07 13:16 ` [PATCH v3 7/7] selftests/livepatch: Add test for function " Yafang Shao
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