From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f44.google.com (mail-pj1-f44.google.com [209.85.216.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2B8D7486E5A for ; Thu, 8 Oct 2026 09:59:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791453547; cv=none; b=ZGkUCxGdsMj98i2T/QUaifjDw8jDgRIJq7kcX9vdHBHxMFkHHYW9+7af6796qeXbRJK9w3l8JkAlSUibtWRiH9gMYlbzPfarWmR6N9fEgc5OkdFbSlTVunfXB9UcRm9DaHPvUVjTkiyffmt/nFQQLyxxxKmX7zr/AMGxXB/fiyE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791453547; c=relaxed/simple; bh=GFuLkfK4lxs3mDOS7RtEdGThemMaY0j+LMNlf9wngn8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=j4k6N5CDDfs9ODErqhKphST6psk7Vmq55LJhJjRlCXu8Z12SQEm/c30WbOHcgQdPmH3Zo2fR/PvkOsEqJ5FxFnjxmxzgvBZJKr2RtCAqMiNWJpOxmKTQec3ZO8B8LJkVglL1qNSm+1I/Y48MBn0XzXssBq/tZzvA5Rl3rdoB3nM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=J2V9EjZu; arc=none smtp.client-ip=209.85.216.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="J2V9EjZu" Received: by mail-pj1-f44.google.com with SMTP id 98e67ed59e1d1-3a886d6ad51so2058244a91.1 for ; Thu, 08 Oct 2026 02:59:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1791453542; x=1792058342; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=/mt0CRA7LFCfvbN90avDkf2CrVHUWq3hqZcA+p6fqK4=; b=J2V9EjZuD0ujgcsZKwydM6UNtS7OgVID+uNMv9yGweab0EMIsZ4u28LzoboMOz0aoB oeU3ukPIiOgQ1PgDAG8Qu2EQSzicmFmcXCFlsxJUhBo/9jccR+bu8U/PfLJ6cgTlZWWM 9huopyFuS9/Iq0jGt5J8OYhJ1+z6v8S3xKv/uy/mA99929ztxDn0HIjlaplOEGm04zXg eoL6BdVyE4gZjeFlrvaZrZroYl+RKlGbwFf4tX8MJjzit1mRs3Iq4QsBG5W3E9A9JxHH vkB/Bj+ML8BmMUBB0U1g4hOIwYri4DKcDZLTnnByqMe2nWKtFFkGBlnWIDSwfmDBlHFR xYLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791453542; x=1792058342; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=/mt0CRA7LFCfvbN90avDkf2CrVHUWq3hqZcA+p6fqK4=; b=iqas1DBTLF/48Ptyp41k3jTcZzNCEWdBNIXEAhIa8sbu34n7545GRGR11HFjmoat6L llKoW9Lho8eyDmfqL7ROfg3JIyXhTImCZctYqWgnBs4SmORUahTqDrjGeDBz39Evi/E1 wqQZZbZYXZZwGNkPDP243/XiHfWp5skpsm0A6Hd0BOfXN+HgeQKTyHtKH1ntbVyHFnxM kVyIQ/nMkwsfH3v8eOKtc3CHbo6dhIQc4qNwI55Hc/0qDYx5KQrnAaIJchYKKoXUb9GJ jfsVkNEt5bFH0+Rctfg8RPCYQmcVjhJWd4/5NR0x+M4d1bP+GievzlCKRd+bFTJZ0drY QHUA== X-Forwarded-Encrypted: i=1; AKwUvBxRckEdEkE+Jd5J3FzKuBa8rOIRoRBgb2qcdyJpoJexIAEdJEKwG619Lsd1kONIXbjwYSLaxnwyZoFz1Eo=@vger.kernel.org X-Gm-Message-State: AFq9FYLiKj7MP+jigDmUtxbfGpMxL0nSOYqb5j3Lb1CYic0nhslOle6A Vj7GpjfS531FrnkWBaFZxU63J2oNVrymV+QnIZwiHp2e6KgdrMh8vIRQ X-Gm-Gg: AYBFou0Iw54ILusb/upykLsM6f/vl8dKRtRD4tCu4rmVVMDHq6m9MCjAMCBETTaBsq8 s29Qp649bq3pTR9T2rfUc+dku9nX/he56doezFamSoesoyMpKrmhHD6y6DaTbGJfpPcm2VN/2aJ SOdyHhkOgoEplnVtYGNYnc+90hJfDSsVWijVW14cVFv6EXRLAY91cjGhE1Re6+DcZLp39BeMfoH fypPBUTShG2UQsVIoMvDaW7kxbFndZPbUbg6/q3e0eONoq6OuEN3gAI9hlRbmqlaKF3Sx44FTsc ShbSWDUj7+71pCvash+CzC3/zH8v4tiS7zaaQF95Kq8XO/Ct2dbfQ/gOWmpQR+r0uw8urP4UkaO S/tHMq3wdCK5Oi4h9aRQIJPQgkkKjvsXGY9cMoL3lRHd1iaDdjSeY2yFQ7G3JPICpfpClm1iars cFO1z7x3vPFmvXbdmDf5ShkRor2v4QP3d6+HYuzheNwxv5TsBFKkOCipteEIDDACBasKM3z0EB9 q4G2wjTQLv15kHvIA6fqD+9+L+tt0pruNqSF3cowAwIWAgAOn2SqWsJ X-Received: by 2002:a17:90a:d00b:b0:3ab:4f1:4f7e with SMTP id 98e67ed59e1d1-3ab04f15107mr885794a91.28.1791453542004; Thu, 08 Oct 2026 02:59:02 -0700 (PDT) Received: from yafangs-Air ([240e:46c:2100:3ace:b801:9432:769f:ff9d]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a9ff7ff13esm3422790a91.7.2026.10.08.02.58.58 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 08 Oct 2026 02:59:01 -0700 (PDT) From: Yafang Shao 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, linux-kernel@vger.kernel.org, Yafang Shao Subject: [PATCH v11 4/9] livepatch: Call klp_init_patch_early() earlier Date: Thu, 8 Oct 2026 17:58:25 +0800 Message-ID: <20261008095830.26308-5-laoar.shao@gmail.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20261008095830.26308-1-laoar.shao@gmail.com> References: <20261008095830.26308-1-laoar.shao@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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