From patchwork Thu Mar 28 15:57:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Granados via B4 Relay X-Patchwork-Id: 13608832 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EF0E613175E; Thu, 28 Mar 2024 15:59:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711641546; cv=none; b=PB99BVHUofCQTMZB6CH7H2WEurUi5xeX2ExHbcjuOuzWLXNPV2sU6UuSRo90qljyeF8EbOm8kI69la6asoraKYUuw9bPBAPkeAUb2UqXxG3IT1kWr8f1FTTzEMl6rJa1Ftq7M2KjIYgx+aCKThDEZxyq90itUcn5UPmA5lJMC1U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711641546; c=relaxed/simple; bh=8Q9bngJpVYFNnjYWEtmsJFuk+cZjVn0lFU8F/+2wGYs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ubwbU4Mx3MVWwQBFaFz2KnKm/Q6wb2YxGiwqdghZWJH9c/LxrOGdRyKBABwXqxQyEWMph2KhBqNcQRw87lKrub2CAPJw/Di8w4/J+4ItOM7T2aTwjsZ+ugxkOguh5mMpGfoijPiHuDSotv4NNJpuS40RRTs5s5Dzu7m2yeUwhUQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YmrzuH3B; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YmrzuH3B" Received: by smtp.kernel.org (Postfix) with ESMTPS id 86BCCC43330; Thu, 28 Mar 2024 15:59:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711641545; bh=8Q9bngJpVYFNnjYWEtmsJFuk+cZjVn0lFU8F/+2wGYs=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=YmrzuH3BliTwE/0aMbEF+2VcX2UHLIx+m0/yWXRyIVMZrUgJcl1YJw2PyjUdmHwH/ ya+t94hVgDN6IgMudg2SFgzwY/QkWU/c5PyvAs3DJONRijbiNBdkjWrkrS9vITZJqV 4s04RYKI92TvN21zTvtB2gcOBkXQhkvtli7vl6GfIUBYpv79m9cOqJfIAc3avYKsR1 et5Ln3Fn7tFgf9EBh6rMXYqfbPYlOC4GV90FtOQv8ksO3NFUmX7aoGpXg35HgC+Vha ym1eDEIT+a1xQaLkltBSuLe9+BSHO9hWQEAyYw2P80euDWTYPSyoWKKhYEzU2zRol+ iXCI1G6AfuRrg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7384ACD11DD; Thu, 28 Mar 2024 15:59:05 +0000 (UTC) From: Joel Granados via B4 Relay Date: Thu, 28 Mar 2024 16:57:49 +0100 Subject: [PATCH 2/7] security: Remove the now superfluous sentinel element from ctl_table array Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240328-jag-sysctl_remset_misc-v1-2-47c1463b3af2@samsung.com> References: <20240328-jag-sysctl_remset_misc-v1-0-47c1463b3af2@samsung.com> In-Reply-To: <20240328-jag-sysctl_remset_misc-v1-0-47c1463b3af2@samsung.com> To: Andrew Morton , Muchun Song , Miaohe Lin , Naoya Horiguchi , John Johansen , Paul Moore , James Morris , "Serge E. Hallyn" , David Howells , Jarkko Sakkinen , Kees Cook , Herbert Xu , "David S. Miller" , Jens Axboe , Pavel Begunkov , Atish Patra , Anup Patel , Will Deacon , Mark Rutland , Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: Luis Chamberlain , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, apparmor@lists.ubuntu.com, linux-security-module@vger.kernel.org, keyrings@vger.kernel.org, linux-crypto@vger.kernel.org, io-uring@vger.kernel.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Joel Granados X-Mailer: b4 0.13-dev-2d940 X-Developer-Signature: v=1; a=openpgp-sha256; l=2166; i=j.granados@samsung.com; h=from:subject:message-id; bh=MMRfTm4NsPGzunc+jLCBGXNs5d6MSZ7h8iaXBibxUBo=; b=owJ4nAHtARL+kA0DAAoBupfNUreWQU8ByyZiAGYFk8R1UXVA6OVx01bpEwxUOhfTMICbrVR2h 1f4SggspLYarIkBswQAAQoAHRYhBK5HCVcl5jElzssnkLqXzVK3lkFPBQJmBZPEAAoJELqXzVK3 lkFPOkcL/iL3V8wwR26L9QEsybs3FPUiCWjpFGJI5kszPVk0Stt5Whqa6ZRa3moK5yHXtROXmvH isu58CfDXlwnMMhjVDwBIJZd3E2mAxRS9baf5sTt0gDgfa0r546kRS/vV46bg4zIffFfucqpDvg 0fbbU/XhggxQ1E6Q2Vx19634oyUaqMW6dcA8Eb+mcpWiNtSXYJE7P54ZWgiJ+2+Q/k9nz7bCClt sEf6hL/2xqZg+knPxHu9eD/l1KgNVEmSCLGALUzExhRUHlM0pbydHbqK2OYALSMv/PdEgBKs6Gc bcSJHtuhVAopg7QCAi5uPSAsV5kKgSCCSBm2lPmOMiK16fx+3Cjhbr6h8H6SHMOYdFj4mbWCd45 LuweyC40jgWA9KA9AWJ5GbTqKDsNDBskuxjTGdV56ullhWNEauQL28puh5SoCK+byTFGBI4C3Zk idQbenpimWdJS+vXICzHjVOiMZZZeDcJN+nBisWSI5knBOJJhnflKNDQ1lTTBr8PkMV24lIia23 HQ= X-Developer-Key: i=j.granados@samsung.com; a=openpgp; fpr=F1F8E46D30F0F6C4A45FF4465895FAAC338C6E77 X-Endpoint-Received: by B4 Relay for j.granados@samsung.com/default with auth_id=70 X-Original-From: Joel Granados Reply-To: j.granados@samsung.com From: Joel Granados This commit comes at the tail end of a greater effort to remove the empty elements at the end of the ctl_table arrays (sentinels) which will reduce the overall build time size of the kernel and run time memory bloat by ~64 bytes per sentinel (further information Link : https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/) Remove the sentinel from all files under security/ that register a sysctl table. Signed-off-by: Joel Granados Acked-by: Kees Cook # loadpin & yama --- security/apparmor/lsm.c | 1 - security/keys/sysctl.c | 1 - security/loadpin/loadpin.c | 1 - security/yama/yama_lsm.c | 1 - 4 files changed, 4 deletions(-) diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c index cef8c466af80..6239777090c4 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -2064,7 +2064,6 @@ static struct ctl_table apparmor_sysctl_table[] = { .mode = 0600, .proc_handler = apparmor_dointvec, }, - { } }; static int __init apparmor_init_sysctl(void) diff --git a/security/keys/sysctl.c b/security/keys/sysctl.c index b348e1679d5d..91f000eef3ad 100644 --- a/security/keys/sysctl.c +++ b/security/keys/sysctl.c @@ -66,7 +66,6 @@ static struct ctl_table key_sysctls[] = { .extra2 = (void *) SYSCTL_INT_MAX, }, #endif - { } }; static int __init init_security_keys_sysctls(void) diff --git a/security/loadpin/loadpin.c b/security/loadpin/loadpin.c index 8e93cda130f1..93fd4d47b334 100644 --- a/security/loadpin/loadpin.c +++ b/security/loadpin/loadpin.c @@ -63,7 +63,6 @@ static struct ctl_table loadpin_sysctl_table[] = { .extra1 = SYSCTL_ONE, .extra2 = SYSCTL_ONE, }, - { } }; static void set_sysctl(bool is_writable) diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c index 49dc52b454ef..b6684a074a59 100644 --- a/security/yama/yama_lsm.c +++ b/security/yama/yama_lsm.c @@ -463,7 +463,6 @@ static struct ctl_table yama_sysctl_table[] = { .extra1 = SYSCTL_ZERO, .extra2 = &max_scope, }, - { } }; static void __init yama_init_sysctl(void) {