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Mon, 26 Oct 2026 06:37:32 -0700 (PDT) Received: from yafangs-Air ([240e:46d:2600:484d:51ee:4f49:b5a8:aabd]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ea9b1a5cf0sm17447055ad.52.2026.10.26.06.37.27 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 26 Oct 2026 06:37:31 -0700 (PDT) From: Yafang Shao To: jpoimboe@kernel.org, mbenes@suse.cz, pmladek@suse.com, joe.lawrence@redhat.com, song@kernel.org Cc: live-patching@vger.kernel.org, linux-kernel@vger.kernel.org, Yafang Shao Subject: [PATCH v13 4/9] livepatch: Call klp_init_patch_early() earlier Date: Mon, 26 Oct 2026 21:36:46 +0800 Message-ID: <20261026133651.40061-5-laoar.shao@gmail.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20261026133651.40061-1-laoar.shao@gmail.com> References: <20261026133651.40061-1-laoar.shao@gmail.com> X-Mailing-List: live-patching@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Yafang Shao Acked-by: Song Liu Acked-by: Miroslav Benes Reviewed-by: Petr Mladek Signed-off-by: Petr Mladek --- 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 9d25685..7240e72 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; -- 1.8.3.1