From mboxrd@z Thu Jan 1 00:00:00 1970 From: ebiederm@xmission.com (Eric W. Biederman) Subject: [GIT PULL] sysctl: Remove the sysctl system call Date: Wed, 27 Nov 2019 10:55:52 -0600 Message-ID: <87r21tuulj.fsf@x220.int.ebiederm.org> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org List-Id: linux-arch.vger.kernel.org Linus, Please pull the for-linus branch from the git tree: git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git for-linus HEAD: 61a47c1ad3a4dc6882f01ebdc88138ac62d0df03 sysctl: Remove the sysctl system call As far as I can tell we have reached the point where no one enables the sysctl system call anymore. It still is enabled in a few defconfigs but they are mostly the rarely used one and in asking people about that it was more cut & paste enabled than anything else. This is single commit that just deletes code. Leaving just enough code so that the deprecated sysctl warning continues to be printed. If my analysis turns out to be wrong and someone actually cares it will be easy to revert this commit and have the system call again. There was one new xtensa defconfig in linux-next that enabled the system call this cycle and when asked about it the maintainer of the code replied that it was not enabled on purpose. As of today's linux-next tree that defconfig no longer enables the system call. I have recently amended the commit to include the review status. Some of the mailing list choked on my patch posting, I don't know why but here is a link to part of the review that made it to linux-kernel. https://lore.kernel.org/lkml/201910011140.EA0181F13@keescook/ What we saw in the review discussion was that if we go a step farther than my patch and mess with uapi headers there are pieces of code that won't compile, but nothing minds the system call actually disappearing from the kernel. Eric W. Biederman (1): sysctl: Remove the sysctl system call arch/arc/configs/nps_defconfig | 1 - arch/arc/configs/tb10x_defconfig | 1 - arch/arm/configs/axm55xx_defconfig | 1 - arch/arm/configs/keystone_defconfig | 1 - arch/arm/configs/lpc32xx_defconfig | 1 - arch/arm/configs/moxart_defconfig | 1 - arch/arm/configs/qcom_defconfig | 1 - arch/arm/configs/zx_defconfig | 1 - arch/m68k/configs/m5475evb_defconfig | 1 - arch/mips/configs/ci20_defconfig | 1 - arch/mips/configs/loongson3_defconfig | 1 - arch/mips/configs/malta_qemu_32r6_defconfig | 1 - arch/mips/configs/maltaaprp_defconfig | 1 - arch/mips/configs/maltasmvp_defconfig | 1 - arch/mips/configs/maltasmvp_eva_defconfig | 1 - arch/mips/configs/maltaup_defconfig | 1 - arch/mips/configs/omega2p_defconfig | 1 - arch/mips/configs/qi_lb60_defconfig | 1 - arch/mips/configs/vocore2_defconfig | 1 - arch/nios2/configs/10m50_defconfig | 1 - arch/nios2/configs/3c120_defconfig | 1 - arch/parisc/configs/c8000_defconfig | 1 - arch/parisc/configs/generic-32bit_defconfig | 1 - arch/powerpc/configs/40x/klondike_defconfig | 1 - arch/sh/configs/rsk7264_defconfig | 1 - arch/xtensa/configs/audio_kc705_defconfig | 1 - arch/xtensa/configs/cadence_csp_defconfig | 1 - arch/xtensa/configs/generic_kc705_defconfig | 1 - arch/xtensa/configs/iss_defconfig | 1 - arch/xtensa/configs/nommu_kc705_defconfig | 1 - arch/xtensa/configs/smp_lx200_defconfig | 1 - arch/xtensa/configs/virt_defconfig | 1 - init/Kconfig | 17 - kernel/sysctl_binary.c | 1305 --------------------------- 34 files changed, 1354 deletions(-) From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out01.mta.xmission.com ([166.70.13.231]:50890 "EHLO out01.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726984AbfK0Q4a (ORCPT ); Wed, 27 Nov 2019 11:56:30 -0500 From: ebiederm@xmission.com (Eric W. Biederman) Date: Wed, 27 Nov 2019 10:55:52 -0600 Message-ID: <87r21tuulj.fsf@x220.int.ebiederm.org> MIME-Version: 1.0 Content-Type: text/plain Subject: [GIT PULL] sysctl: Remove the sysctl system call Sender: linux-arch-owner@vger.kernel.org List-ID: To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org Message-ID: <20191127165552.5CURnpdbghFVZGcuU5_p9DOhAZgMoTeShV7Ll11zFN8@z> Linus, Please pull the for-linus branch from the git tree: git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git for-linus HEAD: 61a47c1ad3a4dc6882f01ebdc88138ac62d0df03 sysctl: Remove the sysctl system call As far as I can tell we have reached the point where no one enables the sysctl system call anymore. It still is enabled in a few defconfigs but they are mostly the rarely used one and in asking people about that it was more cut & paste enabled than anything else. This is single commit that just deletes code. Leaving just enough code so that the deprecated sysctl warning continues to be printed. If my analysis turns out to be wrong and someone actually cares it will be easy to revert this commit and have the system call again. There was one new xtensa defconfig in linux-next that enabled the system call this cycle and when asked about it the maintainer of the code replied that it was not enabled on purpose. As of today's linux-next tree that defconfig no longer enables the system call. I have recently amended the commit to include the review status. Some of the mailing list choked on my patch posting, I don't know why but here is a link to part of the review that made it to linux-kernel. https://lore.kernel.org/lkml/201910011140.EA0181F13@keescook/ What we saw in the review discussion was that if we go a step farther than my patch and mess with uapi headers there are pieces of code that won't compile, but nothing minds the system call actually disappearing from the kernel. Eric W. Biederman (1): sysctl: Remove the sysctl system call arch/arc/configs/nps_defconfig | 1 - arch/arc/configs/tb10x_defconfig | 1 - arch/arm/configs/axm55xx_defconfig | 1 - arch/arm/configs/keystone_defconfig | 1 - arch/arm/configs/lpc32xx_defconfig | 1 - arch/arm/configs/moxart_defconfig | 1 - arch/arm/configs/qcom_defconfig | 1 - arch/arm/configs/zx_defconfig | 1 - arch/m68k/configs/m5475evb_defconfig | 1 - arch/mips/configs/ci20_defconfig | 1 - arch/mips/configs/loongson3_defconfig | 1 - arch/mips/configs/malta_qemu_32r6_defconfig | 1 - arch/mips/configs/maltaaprp_defconfig | 1 - arch/mips/configs/maltasmvp_defconfig | 1 - arch/mips/configs/maltasmvp_eva_defconfig | 1 - arch/mips/configs/maltaup_defconfig | 1 - arch/mips/configs/omega2p_defconfig | 1 - arch/mips/configs/qi_lb60_defconfig | 1 - arch/mips/configs/vocore2_defconfig | 1 - arch/nios2/configs/10m50_defconfig | 1 - arch/nios2/configs/3c120_defconfig | 1 - arch/parisc/configs/c8000_defconfig | 1 - arch/parisc/configs/generic-32bit_defconfig | 1 - arch/powerpc/configs/40x/klondike_defconfig | 1 - arch/sh/configs/rsk7264_defconfig | 1 - arch/xtensa/configs/audio_kc705_defconfig | 1 - arch/xtensa/configs/cadence_csp_defconfig | 1 - arch/xtensa/configs/generic_kc705_defconfig | 1 - arch/xtensa/configs/iss_defconfig | 1 - arch/xtensa/configs/nommu_kc705_defconfig | 1 - arch/xtensa/configs/smp_lx200_defconfig | 1 - arch/xtensa/configs/virt_defconfig | 1 - init/Kconfig | 17 - kernel/sysctl_binary.c | 1305 --------------------------- 34 files changed, 1354 deletions(-)