[PATCH v8 4/9] livepatch: Call klp_init_patch_early() earlier
From: Yafang Shao <hidden>
Date: 2026-09-09 02:44:01
Subsystem:
live patching, the rest · Maintainers:
Josh Poimboeuf, Jiri Kosina, Miroslav Benes, Petr Mladek, Linus Torvalds
Invoke klp_init_patch_early() during early initialization to avoid mixing for_each_() and for_each_*_static() variants later in the code. No functional change. This prepares the code for an upcoming patch. Suggested-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Yafang Shao <redacted> Acked-by: Song Liu <song@kernel.org> Acked-by: Miroslav Benes <mbenes@suse.cz> --- kernel/livepatch/core.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index 89251fafe86e..c0879b5d9dc0 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c@@ -1155,13 +1155,6 @@ int klp_enable_patch(struct klp_patch *patch) mutex_lock(&klp_mutex); - if (!klp_is_patch_compatible(patch)) { - pr_err("Livepatch patch (%s) is not compatible with the already installed livepatches.\n", - patch->mod->name); - mutex_unlock(&klp_mutex); - return -EINVAL; - } - if (!try_module_get(patch->mod)) { mutex_unlock(&klp_mutex); return -ENODEV;
@@ -1169,6 +1162,13 @@ int klp_enable_patch(struct klp_patch *patch) klp_init_patch_early(patch); + if (!klp_is_patch_compatible(patch)) { + pr_err("Livepatch patch (%s) is not compatible with the already installed livepatches.\n", + patch->mod->name); + ret = -EINVAL; + goto err; + } + ret = klp_init_patch(patch); if (ret) goto err;
--
2.52.0