From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 48B84C636CC for ; Fri, 17 Feb 2023 03:14:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229739AbjBQDOv (ORCPT ); Thu, 16 Feb 2023 22:14:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229460AbjBQDOu (ORCPT ); Thu, 16 Feb 2023 22:14:50 -0500 Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 84D1D5455A; Thu, 16 Feb 2023 19:14:46 -0800 (PST) From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=weissschuh.net; s=mail; t=1676603684; bh=JhufyqbgcfAtSqTzyqs7Nu1k8rx08yOQj4V6vTeRZRg=; h=From:Date:Subject:To:Cc:From; b=D34bvA+NxbQA4ghJTPvHf3r31uIS/doBa8YDg31r4vP680wftF/2Zf4V6gCirhKTz b9ehtwA7lR45jZJ/qptX84IixRd04TVTu563MsHqNzRhk+QsiFGqhCKA9sQBURpnGE 9TrxUSNUTSENDRCVjeZQPCol4HasSFENXcDl5crM= Date: Fri, 17 Feb 2023 03:14:41 +0000 Subject: [PATCH] livepatch: Make kobj_type structures constant MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20230217-kobj_type-livepatch-v1-1-06ded292e897@weissschuh.net> X-B4-Tracking: v=1; b=H4sIACDx7mMC/x2NWwqDMBAAryL73QWNWqFXKUXy2DTbhhgSKy3i3 bv4OQPD7FCpMFW4NTsU2rjykgS6SwM26PQkZCcMqlV9q7oJ34t5zesvE0beKOvVBpwG57y/umH sPUhpdCU0RScbpE2fGEXmQp6/5+r+OI4/qugDu3oAAAA= To: Josh Poimboeuf , Jiri Kosina , Miroslav Benes , Petr Mladek , Joe Lawrence Cc: live-patching@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.12.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1676603682; l=1669; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=JhufyqbgcfAtSqTzyqs7Nu1k8rx08yOQj4V6vTeRZRg=; b=IHauOSf5wkVtx+kzX5lRhfCxnvQC/kMey7MbAd54Ve5ypF9z84f96TOr5rGIrgAg/zKyO48i1 XYLr/jlxHwPAS17sbwQQ6u/xZJivb8zvjWrR28bp0nL3nHTjhHeSX3A X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= Precedence: bulk List-ID: X-Mailing-List: live-patching@vger.kernel.org Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.") the driver core allows the usage of const struct kobj_type. Take advantage of this to constify the structure definitions to prevent modification at runtime. Signed-off-by: Thomas Weißschuh --- kernel/livepatch/core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c index 201f0c0482fb..3da548755d8a 100644 --- a/kernel/livepatch/core.c +++ b/kernel/livepatch/core.c @@ -581,7 +581,7 @@ static void klp_kobj_release_patch(struct kobject *kobj) complete(&patch->finish); } -static struct kobj_type klp_ktype_patch = { +static const struct kobj_type klp_ktype_patch = { .release = klp_kobj_release_patch, .sysfs_ops = &kobj_sysfs_ops, .default_groups = klp_patch_groups, @@ -597,7 +597,7 @@ static void klp_kobj_release_object(struct kobject *kobj) klp_free_object_dynamic(obj); } -static struct kobj_type klp_ktype_object = { +static const struct kobj_type klp_ktype_object = { .release = klp_kobj_release_object, .sysfs_ops = &kobj_sysfs_ops, .default_groups = klp_object_groups, @@ -613,7 +613,7 @@ static void klp_kobj_release_func(struct kobject *kobj) klp_free_func_nop(func); } -static struct kobj_type klp_ktype_func = { +static const struct kobj_type klp_ktype_func = { .release = klp_kobj_release_func, .sysfs_ops = &kobj_sysfs_ops, }; --- base-commit: 3ac88fa4605ec98e545fb3ad0154f575fda2de5f change-id: 20230217-kobj_type-livepatch-74ddff6d453f Best regards, -- Thomas Weißschuh