From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: [PATCH 00/14] clean up asm/uaccess.h, kill set_fs for good Date: Mon, 14 Feb 2022 17:34:38 +0100 Message-ID: <20220214163452.1568807-1-arnd@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644856542; bh=NCPtyXY6GSVFAxA9xMH/uI0qVAvzui4f6HWShmHq7S4=; h=From:To:Cc:Subject:Date:From; b=AD+OGCC91QW3gC/dZKsZFSSWI0QKTWjyYSyPe3ESJoZsA18Yxd+6C2XmKbO+BufBV pgOTeKAy/H78mpdds/cyxQ3VhN4bBP5a5vjc0WbkFTjxn+hvTh5aHadh4RocZ3TKWZ eb6b0ouxjuiSDysMNzxh//PeMK4OQFXVj3bLmv5B1B7q8Uq/AO4RDRlThvSeYzr3Ly Gc0VXxNLiJ5WO1pIX67udGR/GCDjJQpiIxvmjGV1mzioNZwxT26v6bU0vORAmaN8AJ nAspwe5m/jH1WNhsqM0Qybjj0jz1yeUDm3LP9c3MsBrk2+9J1cYolEm51L9D0B9ZO/ R/tiDrFKWPKmA== List-ID: Content-Type: text/plain; charset="us-ascii" To: Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org Cc: linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-pa From: Arnd Bergmann Christoph Hellwig and a few others spent a huge effort on removing set_fs() from most of the important architectures, but about half the other architectures were never completed even though most of them don't actually use set_fs() at all. I did a patch for microblaze at some point, which turned out to be fairly generic, and now ported it to most other architectures, using new generic implementations of access_ok() and __{get,put}_kernel_nocheck(). Three architectures (sparc64, ia64, and sh) needed some extra work, which I also completed. The final series contains extra cleanup changes that touch all architectures. Please review and test these, so we can merge them for v5.18. The series is available at https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=set_fs for testing. Arnd Arnd Bergmann (14): uaccess: fix integer overflow on access_ok() sparc64: add __{get,put}_kernel_nocheck() nds32: fix access_ok() checks in get/put_user x86: use more conventional access_ok() definition uaccess: add generic __{get,put}_kernel_nofault mips: use simpler access_ok() uaccess: generalize access_ok() arm64: simplify access_ok() m68k: drop custom __access_ok() uaccess: remove most CONFIG_SET_FS users sparc64: remove CONFIG_SET_FS support sh: remove CONFIG_SET_FS support ia64: remove CONFIG_SET_FS support uaccess: drop set_fs leftovers arch/Kconfig | 3 - arch/alpha/Kconfig | 1 - arch/alpha/include/asm/processor.h | 4 - arch/alpha/include/asm/thread_info.h | 2 - arch/alpha/include/asm/uaccess.h | 53 +-------- arch/arc/Kconfig | 1 - arch/arc/include/asm/segment.h | 20 ---- arch/arc/include/asm/thread_info.h | 3 - arch/arc/include/asm/uaccess.h | 30 ----- arch/arm/include/asm/uaccess.h | 22 +--- arch/arm/kernel/swp_emulate.c | 2 +- arch/arm/kernel/traps.c | 2 +- arch/arm/lib/uaccess_with_memcpy.c | 10 -- arch/arm64/include/asm/uaccess.h | 29 +---- arch/csky/Kconfig | 1 - arch/csky/include/asm/processor.h | 2 - arch/csky/include/asm/segment.h | 10 -- arch/csky/include/asm/thread_info.h | 2 - arch/csky/include/asm/uaccess.h | 12 -- arch/csky/kernel/asm-offsets.c | 1 - arch/csky/kernel/signal.c | 2 +- arch/h8300/Kconfig | 1 - arch/h8300/include/asm/processor.h | 1 - arch/h8300/include/asm/segment.h | 40 ------- arch/h8300/include/asm/thread_info.h | 3 - arch/h8300/kernel/entry.S | 1 - arch/h8300/kernel/head_ram.S | 1 - arch/h8300/mm/init.c | 6 - arch/h8300/mm/memory.c | 1 - arch/hexagon/Kconfig | 1 - arch/hexagon/include/asm/thread_info.h | 6 - arch/hexagon/include/asm/uaccess.h | 25 ---- arch/hexagon/kernel/process.c | 1 - arch/ia64/Kconfig | 1 - arch/ia64/include/asm/processor.h | 4 - arch/ia64/include/asm/thread_info.h | 2 - arch/ia64/include/asm/uaccess.h | 26 ++--- arch/ia64/kernel/unaligned.c | 60 ++++++---- arch/m68k/include/asm/uaccess.h | 14 +-- arch/microblaze/Kconfig | 1 - arch/microblaze/include/asm/thread_info.h | 6 - arch/microblaze/include/asm/uaccess.h | 43 +------ arch/microblaze/kernel/asm-offsets.c | 1 - arch/microblaze/kernel/process.c | 1 - arch/mips/include/asm/uaccess.h | 47 +------- arch/nds32/Kconfig | 1 - arch/nds32/include/asm/thread_info.h | 4 - arch/nds32/include/asm/uaccess.h | 40 +++---- arch/nds32/kernel/process.c | 5 +- arch/nds32/mm/alignment.c | 3 - arch/nios2/Kconfig | 1 - arch/nios2/include/asm/thread_info.h | 9 -- arch/nios2/include/asm/uaccess.h | 23 +--- arch/nios2/kernel/signal.c | 20 ++-- arch/openrisc/Kconfig | 1 - arch/openrisc/include/asm/thread_info.h | 7 -- arch/openrisc/include/asm/uaccess.h | 42 +------ arch/parisc/include/asm/futex.h | 2 +- arch/parisc/include/asm/uaccess.h | 11 +- arch/parisc/lib/memcpy.c | 2 +- arch/powerpc/include/asm/uaccess.h | 13 +-- arch/powerpc/lib/sstep.c | 4 +- arch/riscv/include/asm/uaccess.h | 33 +----- arch/riscv/kernel/perf_callchain.c | 2 +- arch/s390/include/asm/uaccess.h | 13 +-- arch/sh/Kconfig | 1 - arch/sh/include/asm/processor.h | 1 - arch/sh/include/asm/segment.h | 33 ------ arch/sh/include/asm/thread_info.h | 2 - arch/sh/include/asm/uaccess.h | 24 +--- arch/sh/kernel/io_trapped.c | 9 +- arch/sh/kernel/process_32.c | 2 - arch/sh/kernel/traps_32.c | 30 +++-- arch/sparc/Kconfig | 1 - arch/sparc/include/asm/processor_32.h | 6 - arch/sparc/include/asm/processor_64.h | 4 - arch/sparc/include/asm/switch_to_64.h | 4 +- arch/sparc/include/asm/thread_info_64.h | 4 +- arch/sparc/include/asm/uaccess.h | 3 - arch/sparc/include/asm/uaccess_32.h | 31 +---- arch/sparc/include/asm/uaccess_64.h | 135 +++++++++++++--------- arch/sparc/kernel/process_32.c | 2 - arch/sparc/kernel/process_64.c | 12 -- arch/sparc/kernel/signal_32.c | 2 +- arch/sparc/kernel/traps_64.c | 2 - arch/sparc/lib/NGmemcpy.S | 3 +- arch/sparc/mm/init_64.c | 3 - arch/um/include/asm/uaccess.h | 7 +- arch/x86/include/asm/uaccess.h | 44 ++----- arch/xtensa/Kconfig | 1 - arch/xtensa/include/asm/asm-uaccess.h | 71 ------------ arch/xtensa/include/asm/processor.h | 7 -- arch/xtensa/include/asm/thread_info.h | 3 - arch/xtensa/include/asm/uaccess.h | 26 +---- arch/xtensa/kernel/asm-offsets.c | 3 - drivers/hid/uhid.c | 2 +- drivers/scsi/sg.c | 5 - fs/exec.c | 6 - include/asm-generic/access_ok.h | 51 ++++++++ include/asm-generic/uaccess.h | 46 +------- include/linux/syscalls.h | 4 - include/linux/uaccess.h | 59 +++------- include/rdma/ib.h | 2 +- kernel/events/callchain.c | 4 - kernel/events/core.c | 3 - kernel/exit.c | 14 --- kernel/kthread.c | 5 - kernel/stacktrace.c | 3 - kernel/trace/bpf_trace.c | 4 - mm/maccess.c | 119 ------------------- mm/memory.c | 8 -- net/bpfilter/bpfilter_kern.c | 2 +- 112 files changed, 315 insertions(+), 1239 deletions(-) delete mode 100644 arch/arc/include/asm/segment.h delete mode 100644 arch/csky/include/asm/segment.h delete mode 100644 arch/h8300/include/asm/segment.h delete mode 100644 arch/sh/include/asm/segment.h create mode 100644 include/asm-generic/access_ok.h -- 2.29.2 Cc: linux@armlinux.org.uk Cc: will@kernel.org Cc: guoren@kernel.org Cc: bcain@codeaurora.org Cc: geert@linux-m68k.org Cc: monstr@monstr.eu Cc: tsbogend@alpha.franken.de Cc: nickhu@andestech.com Cc: green.hu@gmail.com Cc: dinguyen@kernel.org Cc: shorne@gmail.com Cc: deller@gmx.de Cc: mpe@ellerman.id.au Cc: peterz@infradead.org Cc: mingo@redhat.com Cc: mark.rutland@arm.com Cc: hca@linux.ibm.com Cc: dalias@libc.org Cc: davem@davemloft.net Cc: richard@nod.at Cc: x86@kernel.org Cc: jcmvbkbc@gmail.com Cc: ebiederm@xmission.com Cc: arnd@arndb.de Cc: akpm@linux-foundation.org Cc: ardb@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-csky@vger.kernel.org Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: openrisc@lists.librecores.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org 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 263F1C4332F for ; Mon, 14 Feb 2022 16:35:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354625AbiBNQgE (ORCPT ); Mon, 14 Feb 2022 11:36:04 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:42586 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356447AbiBNQfv (ORCPT ); Mon, 14 Feb 2022 11:35:51 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7460460D88; Mon, 14 Feb 2022 08:35:43 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 10E276145A; Mon, 14 Feb 2022 16:35:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95D20C340E9; Mon, 14 Feb 2022 16:35:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644856542; bh=NCPtyXY6GSVFAxA9xMH/uI0qVAvzui4f6HWShmHq7S4=; h=From:To:Cc:Subject:Date:From; b=AD+OGCC91QW3gC/dZKsZFSSWI0QKTWjyYSyPe3ESJoZsA18Yxd+6C2XmKbO+BufBV pgOTeKAy/H78mpdds/cyxQ3VhN4bBP5a5vjc0WbkFTjxn+hvTh5aHadh4RocZ3TKWZ eb6b0ouxjuiSDysMNzxh//PeMK4OQFXVj3bLmv5B1B7q8Uq/AO4RDRlThvSeYzr3Ly Gc0VXxNLiJ5WO1pIX67udGR/GCDjJQpiIxvmjGV1mzioNZwxT26v6bU0vORAmaN8AJ nAspwe5m/jH1WNhsqM0Qybjj0jz1yeUDm3LP9c3MsBrk2+9J1cYolEm51L9D0B9ZO/ R/tiDrFKWPKmA== From: Arnd Bergmann To: Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org Cc: linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org Subject: [PATCH 00/14] clean up asm/uaccess.h, kill set_fs for good Date: Mon, 14 Feb 2022 17:34:38 +0100 Message-Id: <20220214163452.1568807-1-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org From: Arnd Bergmann Christoph Hellwig and a few others spent a huge effort on removing set_fs() from most of the important architectures, but about half the other architectures were never completed even though most of them don't actually use set_fs() at all. I did a patch for microblaze at some point, which turned out to be fairly generic, and now ported it to most other architectures, using new generic implementations of access_ok() and __{get,put}_kernel_nocheck(). Three architectures (sparc64, ia64, and sh) needed some extra work, which I also completed. The final series contains extra cleanup changes that touch all architectures. Please review and test these, so we can merge them for v5.18. The series is available at https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=set_fs for testing. Arnd Arnd Bergmann (14): uaccess: fix integer overflow on access_ok() sparc64: add __{get,put}_kernel_nocheck() nds32: fix access_ok() checks in get/put_user x86: use more conventional access_ok() definition uaccess: add generic __{get,put}_kernel_nofault mips: use simpler access_ok() uaccess: generalize access_ok() arm64: simplify access_ok() m68k: drop custom __access_ok() uaccess: remove most CONFIG_SET_FS users sparc64: remove CONFIG_SET_FS support sh: remove CONFIG_SET_FS support ia64: remove CONFIG_SET_FS support uaccess: drop set_fs leftovers arch/Kconfig | 3 - arch/alpha/Kconfig | 1 - arch/alpha/include/asm/processor.h | 4 - arch/alpha/include/asm/thread_info.h | 2 - arch/alpha/include/asm/uaccess.h | 53 +-------- arch/arc/Kconfig | 1 - arch/arc/include/asm/segment.h | 20 ---- arch/arc/include/asm/thread_info.h | 3 - arch/arc/include/asm/uaccess.h | 30 ----- arch/arm/include/asm/uaccess.h | 22 +--- arch/arm/kernel/swp_emulate.c | 2 +- arch/arm/kernel/traps.c | 2 +- arch/arm/lib/uaccess_with_memcpy.c | 10 -- arch/arm64/include/asm/uaccess.h | 29 +---- arch/csky/Kconfig | 1 - arch/csky/include/asm/processor.h | 2 - arch/csky/include/asm/segment.h | 10 -- arch/csky/include/asm/thread_info.h | 2 - arch/csky/include/asm/uaccess.h | 12 -- arch/csky/kernel/asm-offsets.c | 1 - arch/csky/kernel/signal.c | 2 +- arch/h8300/Kconfig | 1 - arch/h8300/include/asm/processor.h | 1 - arch/h8300/include/asm/segment.h | 40 ------- arch/h8300/include/asm/thread_info.h | 3 - arch/h8300/kernel/entry.S | 1 - arch/h8300/kernel/head_ram.S | 1 - arch/h8300/mm/init.c | 6 - arch/h8300/mm/memory.c | 1 - arch/hexagon/Kconfig | 1 - arch/hexagon/include/asm/thread_info.h | 6 - arch/hexagon/include/asm/uaccess.h | 25 ---- arch/hexagon/kernel/process.c | 1 - arch/ia64/Kconfig | 1 - arch/ia64/include/asm/processor.h | 4 - arch/ia64/include/asm/thread_info.h | 2 - arch/ia64/include/asm/uaccess.h | 26 ++--- arch/ia64/kernel/unaligned.c | 60 ++++++---- arch/m68k/include/asm/uaccess.h | 14 +-- arch/microblaze/Kconfig | 1 - arch/microblaze/include/asm/thread_info.h | 6 - arch/microblaze/include/asm/uaccess.h | 43 +------ arch/microblaze/kernel/asm-offsets.c | 1 - arch/microblaze/kernel/process.c | 1 - arch/mips/include/asm/uaccess.h | 47 +------- arch/nds32/Kconfig | 1 - arch/nds32/include/asm/thread_info.h | 4 - arch/nds32/include/asm/uaccess.h | 40 +++---- arch/nds32/kernel/process.c | 5 +- arch/nds32/mm/alignment.c | 3 - arch/nios2/Kconfig | 1 - arch/nios2/include/asm/thread_info.h | 9 -- arch/nios2/include/asm/uaccess.h | 23 +--- arch/nios2/kernel/signal.c | 20 ++-- arch/openrisc/Kconfig | 1 - arch/openrisc/include/asm/thread_info.h | 7 -- arch/openrisc/include/asm/uaccess.h | 42 +------ arch/parisc/include/asm/futex.h | 2 +- arch/parisc/include/asm/uaccess.h | 11 +- arch/parisc/lib/memcpy.c | 2 +- arch/powerpc/include/asm/uaccess.h | 13 +-- arch/powerpc/lib/sstep.c | 4 +- arch/riscv/include/asm/uaccess.h | 33 +----- arch/riscv/kernel/perf_callchain.c | 2 +- arch/s390/include/asm/uaccess.h | 13 +-- arch/sh/Kconfig | 1 - arch/sh/include/asm/processor.h | 1 - arch/sh/include/asm/segment.h | 33 ------ arch/sh/include/asm/thread_info.h | 2 - arch/sh/include/asm/uaccess.h | 24 +--- arch/sh/kernel/io_trapped.c | 9 +- arch/sh/kernel/process_32.c | 2 - arch/sh/kernel/traps_32.c | 30 +++-- arch/sparc/Kconfig | 1 - arch/sparc/include/asm/processor_32.h | 6 - arch/sparc/include/asm/processor_64.h | 4 - arch/sparc/include/asm/switch_to_64.h | 4 +- arch/sparc/include/asm/thread_info_64.h | 4 +- arch/sparc/include/asm/uaccess.h | 3 - arch/sparc/include/asm/uaccess_32.h | 31 +---- arch/sparc/include/asm/uaccess_64.h | 135 +++++++++++++--------- arch/sparc/kernel/process_32.c | 2 - arch/sparc/kernel/process_64.c | 12 -- arch/sparc/kernel/signal_32.c | 2 +- arch/sparc/kernel/traps_64.c | 2 - arch/sparc/lib/NGmemcpy.S | 3 +- arch/sparc/mm/init_64.c | 3 - arch/um/include/asm/uaccess.h | 7 +- arch/x86/include/asm/uaccess.h | 44 ++----- arch/xtensa/Kconfig | 1 - arch/xtensa/include/asm/asm-uaccess.h | 71 ------------ arch/xtensa/include/asm/processor.h | 7 -- arch/xtensa/include/asm/thread_info.h | 3 - arch/xtensa/include/asm/uaccess.h | 26 +---- arch/xtensa/kernel/asm-offsets.c | 3 - drivers/hid/uhid.c | 2 +- drivers/scsi/sg.c | 5 - fs/exec.c | 6 - include/asm-generic/access_ok.h | 51 ++++++++ include/asm-generic/uaccess.h | 46 +------- include/linux/syscalls.h | 4 - include/linux/uaccess.h | 59 +++------- include/rdma/ib.h | 2 +- kernel/events/callchain.c | 4 - kernel/events/core.c | 3 - kernel/exit.c | 14 --- kernel/kthread.c | 5 - kernel/stacktrace.c | 3 - kernel/trace/bpf_trace.c | 4 - mm/maccess.c | 119 ------------------- mm/memory.c | 8 -- net/bpfilter/bpfilter_kern.c | 2 +- 112 files changed, 315 insertions(+), 1239 deletions(-) delete mode 100644 arch/arc/include/asm/segment.h delete mode 100644 arch/csky/include/asm/segment.h delete mode 100644 arch/h8300/include/asm/segment.h delete mode 100644 arch/sh/include/asm/segment.h create mode 100644 include/asm-generic/access_ok.h -- 2.29.2 Cc: linux@armlinux.org.uk Cc: will@kernel.org Cc: guoren@kernel.org Cc: bcain@codeaurora.org Cc: geert@linux-m68k.org Cc: monstr@monstr.eu Cc: tsbogend@alpha.franken.de Cc: nickhu@andestech.com Cc: green.hu@gmail.com Cc: dinguyen@kernel.org Cc: shorne@gmail.com Cc: deller@gmx.de Cc: mpe@ellerman.id.au Cc: peterz@infradead.org Cc: mingo@redhat.com Cc: mark.rutland@arm.com Cc: hca@linux.ibm.com Cc: dalias@libc.org Cc: davem@davemloft.net Cc: richard@nod.at Cc: x86@kernel.org Cc: jcmvbkbc@gmail.com Cc: ebiederm@xmission.com Cc: arnd@arndb.de Cc: akpm@linux-foundation.org Cc: ardb@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-csky@vger.kernel.org Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: openrisc@lists.librecores.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Date: Mon, 14 Feb 2022 16:34:38 +0000 Subject: [PATCH 00/14] clean up asm/uaccess.h, kill set_fs for good Message-Id: <20220214163452.1568807-1-arnd@kernel.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org Cc: linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org From: Arnd Bergmann Christoph Hellwig and a few others spent a huge effort on removing set_fs() from most of the important architectures, but about half the other architectures were never completed even though most of them don't actually use set_fs() at all. I did a patch for microblaze at some point, which turned out to be fairly generic, and now ported it to most other architectures, using new generic implementations of access_ok() and __{get,put}_kernel_nocheck(). Three architectures (sparc64, ia64, and sh) needed some extra work, which I also completed. The final series contains extra cleanup changes that touch all architectures. Please review and test these, so we can merge them for v5.18. The series is available at https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=set_fs for testing. Arnd Arnd Bergmann (14): uaccess: fix integer overflow on access_ok() sparc64: add __{get,put}_kernel_nocheck() nds32: fix access_ok() checks in get/put_user x86: use more conventional access_ok() definition uaccess: add generic __{get,put}_kernel_nofault mips: use simpler access_ok() uaccess: generalize access_ok() arm64: simplify access_ok() m68k: drop custom __access_ok() uaccess: remove most CONFIG_SET_FS users sparc64: remove CONFIG_SET_FS support sh: remove CONFIG_SET_FS support ia64: remove CONFIG_SET_FS support uaccess: drop set_fs leftovers arch/Kconfig | 3 - arch/alpha/Kconfig | 1 - arch/alpha/include/asm/processor.h | 4 - arch/alpha/include/asm/thread_info.h | 2 - arch/alpha/include/asm/uaccess.h | 53 +-------- arch/arc/Kconfig | 1 - arch/arc/include/asm/segment.h | 20 ---- arch/arc/include/asm/thread_info.h | 3 - arch/arc/include/asm/uaccess.h | 30 ----- arch/arm/include/asm/uaccess.h | 22 +--- arch/arm/kernel/swp_emulate.c | 2 +- arch/arm/kernel/traps.c | 2 +- arch/arm/lib/uaccess_with_memcpy.c | 10 -- arch/arm64/include/asm/uaccess.h | 29 +---- arch/csky/Kconfig | 1 - arch/csky/include/asm/processor.h | 2 - arch/csky/include/asm/segment.h | 10 -- arch/csky/include/asm/thread_info.h | 2 - arch/csky/include/asm/uaccess.h | 12 -- arch/csky/kernel/asm-offsets.c | 1 - arch/csky/kernel/signal.c | 2 +- arch/h8300/Kconfig | 1 - arch/h8300/include/asm/processor.h | 1 - arch/h8300/include/asm/segment.h | 40 ------- arch/h8300/include/asm/thread_info.h | 3 - arch/h8300/kernel/entry.S | 1 - arch/h8300/kernel/head_ram.S | 1 - arch/h8300/mm/init.c | 6 - arch/h8300/mm/memory.c | 1 - arch/hexagon/Kconfig | 1 - arch/hexagon/include/asm/thread_info.h | 6 - arch/hexagon/include/asm/uaccess.h | 25 ---- arch/hexagon/kernel/process.c | 1 - arch/ia64/Kconfig | 1 - arch/ia64/include/asm/processor.h | 4 - arch/ia64/include/asm/thread_info.h | 2 - arch/ia64/include/asm/uaccess.h | 26 ++--- arch/ia64/kernel/unaligned.c | 60 ++++++---- arch/m68k/include/asm/uaccess.h | 14 +-- arch/microblaze/Kconfig | 1 - arch/microblaze/include/asm/thread_info.h | 6 - arch/microblaze/include/asm/uaccess.h | 43 +------ arch/microblaze/kernel/asm-offsets.c | 1 - arch/microblaze/kernel/process.c | 1 - arch/mips/include/asm/uaccess.h | 47 +------- arch/nds32/Kconfig | 1 - arch/nds32/include/asm/thread_info.h | 4 - arch/nds32/include/asm/uaccess.h | 40 +++---- arch/nds32/kernel/process.c | 5 +- arch/nds32/mm/alignment.c | 3 - arch/nios2/Kconfig | 1 - arch/nios2/include/asm/thread_info.h | 9 -- arch/nios2/include/asm/uaccess.h | 23 +--- arch/nios2/kernel/signal.c | 20 ++-- arch/openrisc/Kconfig | 1 - arch/openrisc/include/asm/thread_info.h | 7 -- arch/openrisc/include/asm/uaccess.h | 42 +------ arch/parisc/include/asm/futex.h | 2 +- arch/parisc/include/asm/uaccess.h | 11 +- arch/parisc/lib/memcpy.c | 2 +- arch/powerpc/include/asm/uaccess.h | 13 +-- arch/powerpc/lib/sstep.c | 4 +- arch/riscv/include/asm/uaccess.h | 33 +----- arch/riscv/kernel/perf_callchain.c | 2 +- arch/s390/include/asm/uaccess.h | 13 +-- arch/sh/Kconfig | 1 - arch/sh/include/asm/processor.h | 1 - arch/sh/include/asm/segment.h | 33 ------ arch/sh/include/asm/thread_info.h | 2 - arch/sh/include/asm/uaccess.h | 24 +--- arch/sh/kernel/io_trapped.c | 9 +- arch/sh/kernel/process_32.c | 2 - arch/sh/kernel/traps_32.c | 30 +++-- arch/sparc/Kconfig | 1 - arch/sparc/include/asm/processor_32.h | 6 - arch/sparc/include/asm/processor_64.h | 4 - arch/sparc/include/asm/switch_to_64.h | 4 +- arch/sparc/include/asm/thread_info_64.h | 4 +- arch/sparc/include/asm/uaccess.h | 3 - arch/sparc/include/asm/uaccess_32.h | 31 +---- arch/sparc/include/asm/uaccess_64.h | 135 +++++++++++++--------- arch/sparc/kernel/process_32.c | 2 - arch/sparc/kernel/process_64.c | 12 -- arch/sparc/kernel/signal_32.c | 2 +- arch/sparc/kernel/traps_64.c | 2 - arch/sparc/lib/NGmemcpy.S | 3 +- arch/sparc/mm/init_64.c | 3 - arch/um/include/asm/uaccess.h | 7 +- arch/x86/include/asm/uaccess.h | 44 ++----- arch/xtensa/Kconfig | 1 - arch/xtensa/include/asm/asm-uaccess.h | 71 ------------ arch/xtensa/include/asm/processor.h | 7 -- arch/xtensa/include/asm/thread_info.h | 3 - arch/xtensa/include/asm/uaccess.h | 26 +---- arch/xtensa/kernel/asm-offsets.c | 3 - drivers/hid/uhid.c | 2 +- drivers/scsi/sg.c | 5 - fs/exec.c | 6 - include/asm-generic/access_ok.h | 51 ++++++++ include/asm-generic/uaccess.h | 46 +------- include/linux/syscalls.h | 4 - include/linux/uaccess.h | 59 +++------- include/rdma/ib.h | 2 +- kernel/events/callchain.c | 4 - kernel/events/core.c | 3 - kernel/exit.c | 14 --- kernel/kthread.c | 5 - kernel/stacktrace.c | 3 - kernel/trace/bpf_trace.c | 4 - mm/maccess.c | 119 ------------------- mm/memory.c | 8 -- net/bpfilter/bpfilter_kern.c | 2 +- 112 files changed, 315 insertions(+), 1239 deletions(-) delete mode 100644 arch/arc/include/asm/segment.h delete mode 100644 arch/csky/include/asm/segment.h delete mode 100644 arch/h8300/include/asm/segment.h delete mode 100644 arch/sh/include/asm/segment.h create mode 100644 include/asm-generic/access_ok.h -- 2.29.2 Cc: linux@armlinux.org.uk Cc: will@kernel.org Cc: guoren@kernel.org Cc: bcain@codeaurora.org Cc: geert@linux-m68k.org Cc: monstr@monstr.eu Cc: tsbogend@alpha.franken.de Cc: nickhu@andestech.com Cc: green.hu@gmail.com Cc: dinguyen@kernel.org Cc: shorne@gmail.com Cc: deller@gmx.de Cc: mpe@ellerman.id.au Cc: peterz@infradead.org Cc: mingo@redhat.com Cc: mark.rutland@arm.com Cc: hca@linux.ibm.com Cc: dalias@libc.org Cc: davem@davemloft.net Cc: richard@nod.at Cc: x86@kernel.org Cc: jcmvbkbc@gmail.com Cc: ebiederm@xmission.com Cc: arnd@arndb.de Cc: akpm@linux-foundation.org Cc: ardb@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-csky@vger.kernel.org Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: openrisc@lists.librecores.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4CDABC433FE for ; Mon, 14 Feb 2022 16:36:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=Cx7CXUfR/QFzIpp0r1dnMSel2Ut/30w5cvcrIBk/A14=; b=vqIgNxVx08IJqB F+c7+iB7vXSpw3d8DmDXY5hdABohLmybD78S/UwcbuhaIQsZfLfyGsCekICVtysBqfc/12BS6su1c QII9/WKWXUfaN3KlAUXj8pE+E0EeK8SE5AOlsjDpbhaGAyXso4LqZBGY5a16a9sACJFIgrTkcx5GU oyiNj/pPFLRAutokjOGZ41BSf71QhsB5LkO/yMw/JJGOnttplXYuT1Tw7otBqBcEeX/XWrW23+w1h fFJNr85OpiK/wpT74Xik8PN11M7qI8ZYjDzg5wNNqa7iq3ts8t+xjf+NEIjKzsXlxFFS/9c37ewVQ vSPTaF1h7YXR6wiTxdQg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJeKT-00G2Ly-M9; Mon, 14 Feb 2022 16:35:57 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJeKF-00G2Hd-IS; Mon, 14 Feb 2022 16:35:46 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 11DFF614EA; Mon, 14 Feb 2022 16:35:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95D20C340E9; Mon, 14 Feb 2022 16:35:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644856542; bh=NCPtyXY6GSVFAxA9xMH/uI0qVAvzui4f6HWShmHq7S4=; h=From:To:Cc:Subject:Date:From; b=AD+OGCC91QW3gC/dZKsZFSSWI0QKTWjyYSyPe3ESJoZsA18Yxd+6C2XmKbO+BufBV pgOTeKAy/H78mpdds/cyxQ3VhN4bBP5a5vjc0WbkFTjxn+hvTh5aHadh4RocZ3TKWZ eb6b0ouxjuiSDysMNzxh//PeMK4OQFXVj3bLmv5B1B7q8Uq/AO4RDRlThvSeYzr3Ly Gc0VXxNLiJ5WO1pIX67udGR/GCDjJQpiIxvmjGV1mzioNZwxT26v6bU0vORAmaN8AJ nAspwe5m/jH1WNhsqM0Qybjj0jz1yeUDm3LP9c3MsBrk2+9J1cYolEm51L9D0B9ZO/ R/tiDrFKWPKmA== From: Arnd Bergmann To: Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org Cc: linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org Subject: [PATCH 00/14] clean up asm/uaccess.h, kill set_fs for good Date: Mon, 14 Feb 2022 17:34:38 +0100 Message-Id: <20220214163452.1568807-1-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220214_083543_696086_AED03A91 X-CRM114-Status: GOOD ( 17.10 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Arnd Bergmann Christoph Hellwig and a few others spent a huge effort on removing set_fs() from most of the important architectures, but about half the other architectures were never completed even though most of them don't actually use set_fs() at all. I did a patch for microblaze at some point, which turned out to be fairly generic, and now ported it to most other architectures, using new generic implementations of access_ok() and __{get,put}_kernel_nocheck(). Three architectures (sparc64, ia64, and sh) needed some extra work, which I also completed. The final series contains extra cleanup changes that touch all architectures. Please review and test these, so we can merge them for v5.18. The series is available at https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=set_fs for testing. Arnd Arnd Bergmann (14): uaccess: fix integer overflow on access_ok() sparc64: add __{get,put}_kernel_nocheck() nds32: fix access_ok() checks in get/put_user x86: use more conventional access_ok() definition uaccess: add generic __{get,put}_kernel_nofault mips: use simpler access_ok() uaccess: generalize access_ok() arm64: simplify access_ok() m68k: drop custom __access_ok() uaccess: remove most CONFIG_SET_FS users sparc64: remove CONFIG_SET_FS support sh: remove CONFIG_SET_FS support ia64: remove CONFIG_SET_FS support uaccess: drop set_fs leftovers arch/Kconfig | 3 - arch/alpha/Kconfig | 1 - arch/alpha/include/asm/processor.h | 4 - arch/alpha/include/asm/thread_info.h | 2 - arch/alpha/include/asm/uaccess.h | 53 +-------- arch/arc/Kconfig | 1 - arch/arc/include/asm/segment.h | 20 ---- arch/arc/include/asm/thread_info.h | 3 - arch/arc/include/asm/uaccess.h | 30 ----- arch/arm/include/asm/uaccess.h | 22 +--- arch/arm/kernel/swp_emulate.c | 2 +- arch/arm/kernel/traps.c | 2 +- arch/arm/lib/uaccess_with_memcpy.c | 10 -- arch/arm64/include/asm/uaccess.h | 29 +---- arch/csky/Kconfig | 1 - arch/csky/include/asm/processor.h | 2 - arch/csky/include/asm/segment.h | 10 -- arch/csky/include/asm/thread_info.h | 2 - arch/csky/include/asm/uaccess.h | 12 -- arch/csky/kernel/asm-offsets.c | 1 - arch/csky/kernel/signal.c | 2 +- arch/h8300/Kconfig | 1 - arch/h8300/include/asm/processor.h | 1 - arch/h8300/include/asm/segment.h | 40 ------- arch/h8300/include/asm/thread_info.h | 3 - arch/h8300/kernel/entry.S | 1 - arch/h8300/kernel/head_ram.S | 1 - arch/h8300/mm/init.c | 6 - arch/h8300/mm/memory.c | 1 - arch/hexagon/Kconfig | 1 - arch/hexagon/include/asm/thread_info.h | 6 - arch/hexagon/include/asm/uaccess.h | 25 ---- arch/hexagon/kernel/process.c | 1 - arch/ia64/Kconfig | 1 - arch/ia64/include/asm/processor.h | 4 - arch/ia64/include/asm/thread_info.h | 2 - arch/ia64/include/asm/uaccess.h | 26 ++--- arch/ia64/kernel/unaligned.c | 60 ++++++---- arch/m68k/include/asm/uaccess.h | 14 +-- arch/microblaze/Kconfig | 1 - arch/microblaze/include/asm/thread_info.h | 6 - arch/microblaze/include/asm/uaccess.h | 43 +------ arch/microblaze/kernel/asm-offsets.c | 1 - arch/microblaze/kernel/process.c | 1 - arch/mips/include/asm/uaccess.h | 47 +------- arch/nds32/Kconfig | 1 - arch/nds32/include/asm/thread_info.h | 4 - arch/nds32/include/asm/uaccess.h | 40 +++---- arch/nds32/kernel/process.c | 5 +- arch/nds32/mm/alignment.c | 3 - arch/nios2/Kconfig | 1 - arch/nios2/include/asm/thread_info.h | 9 -- arch/nios2/include/asm/uaccess.h | 23 +--- arch/nios2/kernel/signal.c | 20 ++-- arch/openrisc/Kconfig | 1 - arch/openrisc/include/asm/thread_info.h | 7 -- arch/openrisc/include/asm/uaccess.h | 42 +------ arch/parisc/include/asm/futex.h | 2 +- arch/parisc/include/asm/uaccess.h | 11 +- arch/parisc/lib/memcpy.c | 2 +- arch/powerpc/include/asm/uaccess.h | 13 +-- arch/powerpc/lib/sstep.c | 4 +- arch/riscv/include/asm/uaccess.h | 33 +----- arch/riscv/kernel/perf_callchain.c | 2 +- arch/s390/include/asm/uaccess.h | 13 +-- arch/sh/Kconfig | 1 - arch/sh/include/asm/processor.h | 1 - arch/sh/include/asm/segment.h | 33 ------ arch/sh/include/asm/thread_info.h | 2 - arch/sh/include/asm/uaccess.h | 24 +--- arch/sh/kernel/io_trapped.c | 9 +- arch/sh/kernel/process_32.c | 2 - arch/sh/kernel/traps_32.c | 30 +++-- arch/sparc/Kconfig | 1 - arch/sparc/include/asm/processor_32.h | 6 - arch/sparc/include/asm/processor_64.h | 4 - arch/sparc/include/asm/switch_to_64.h | 4 +- arch/sparc/include/asm/thread_info_64.h | 4 +- arch/sparc/include/asm/uaccess.h | 3 - arch/sparc/include/asm/uaccess_32.h | 31 +---- arch/sparc/include/asm/uaccess_64.h | 135 +++++++++++++--------- arch/sparc/kernel/process_32.c | 2 - arch/sparc/kernel/process_64.c | 12 -- arch/sparc/kernel/signal_32.c | 2 +- arch/sparc/kernel/traps_64.c | 2 - arch/sparc/lib/NGmemcpy.S | 3 +- arch/sparc/mm/init_64.c | 3 - arch/um/include/asm/uaccess.h | 7 +- arch/x86/include/asm/uaccess.h | 44 ++----- arch/xtensa/Kconfig | 1 - arch/xtensa/include/asm/asm-uaccess.h | 71 ------------ arch/xtensa/include/asm/processor.h | 7 -- arch/xtensa/include/asm/thread_info.h | 3 - arch/xtensa/include/asm/uaccess.h | 26 +---- arch/xtensa/kernel/asm-offsets.c | 3 - drivers/hid/uhid.c | 2 +- drivers/scsi/sg.c | 5 - fs/exec.c | 6 - include/asm-generic/access_ok.h | 51 ++++++++ include/asm-generic/uaccess.h | 46 +------- include/linux/syscalls.h | 4 - include/linux/uaccess.h | 59 +++------- include/rdma/ib.h | 2 +- kernel/events/callchain.c | 4 - kernel/events/core.c | 3 - kernel/exit.c | 14 --- kernel/kthread.c | 5 - kernel/stacktrace.c | 3 - kernel/trace/bpf_trace.c | 4 - mm/maccess.c | 119 ------------------- mm/memory.c | 8 -- net/bpfilter/bpfilter_kern.c | 2 +- 112 files changed, 315 insertions(+), 1239 deletions(-) delete mode 100644 arch/arc/include/asm/segment.h delete mode 100644 arch/csky/include/asm/segment.h delete mode 100644 arch/h8300/include/asm/segment.h delete mode 100644 arch/sh/include/asm/segment.h create mode 100644 include/asm-generic/access_ok.h -- 2.29.2 Cc: linux@armlinux.org.uk Cc: will@kernel.org Cc: guoren@kernel.org Cc: bcain@codeaurora.org Cc: geert@linux-m68k.org Cc: monstr@monstr.eu Cc: tsbogend@alpha.franken.de Cc: nickhu@andestech.com Cc: green.hu@gmail.com Cc: dinguyen@kernel.org Cc: shorne@gmail.com Cc: deller@gmx.de Cc: mpe@ellerman.id.au Cc: peterz@infradead.org Cc: mingo@redhat.com Cc: mark.rutland@arm.com Cc: hca@linux.ibm.com Cc: dalias@libc.org Cc: davem@davemloft.net Cc: richard@nod.at Cc: x86@kernel.org Cc: jcmvbkbc@gmail.com Cc: ebiederm@xmission.com Cc: arnd@arndb.de Cc: akpm@linux-foundation.org Cc: ardb@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-csky@vger.kernel.org Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: openrisc@lists.librecores.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D7930C433F5 for ; Mon, 14 Feb 2022 16:36:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=uBATSVuDGWN1TDNHdyqsGlib/N3RM4EVo9Jc0XX2iCc=; b=aUenOf0Ve03JG0 nUH6tt2OjbGTbmMoFkHqf9jrr1yUTERKWb2WJYZ9kAbZ8xoJPZsqetreWdFqMchCjo3x2Q2587fh1 l9K160kOaxwdE2UgLOVaEIG0dMBkWNyTI5slMqxf4OCZP3BTRFiCXYLRKau+5PUOyNwurjxHiIZ8m eJi7MTnw4JwAJ3NKyXWJPTedZvip33rpu2XwXKBI22zHCwoVfjjQEmdnzV3J1CrIOZDOmJpXMDo3o C6iKWKazTsQK0RYhzLzotwOE9tCpE/LZYg03cxYgTjyPQsQdSxFKAfVokGEvyfB2jkk9yETZa5k9a xKWYN/sADBymg2yL5mlg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJeKV-00G2NN-Sb; Mon, 14 Feb 2022 16:35:59 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJeKF-00G2Hd-IS; Mon, 14 Feb 2022 16:35:46 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 11DFF614EA; Mon, 14 Feb 2022 16:35:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95D20C340E9; Mon, 14 Feb 2022 16:35:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644856542; bh=NCPtyXY6GSVFAxA9xMH/uI0qVAvzui4f6HWShmHq7S4=; h=From:To:Cc:Subject:Date:From; b=AD+OGCC91QW3gC/dZKsZFSSWI0QKTWjyYSyPe3ESJoZsA18Yxd+6C2XmKbO+BufBV pgOTeKAy/H78mpdds/cyxQ3VhN4bBP5a5vjc0WbkFTjxn+hvTh5aHadh4RocZ3TKWZ eb6b0ouxjuiSDysMNzxh//PeMK4OQFXVj3bLmv5B1B7q8Uq/AO4RDRlThvSeYzr3Ly Gc0VXxNLiJ5WO1pIX67udGR/GCDjJQpiIxvmjGV1mzioNZwxT26v6bU0vORAmaN8AJ nAspwe5m/jH1WNhsqM0Qybjj0jz1yeUDm3LP9c3MsBrk2+9J1cYolEm51L9D0B9ZO/ R/tiDrFKWPKmA== From: Arnd Bergmann To: Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org Cc: linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org Subject: [PATCH 00/14] clean up asm/uaccess.h, kill set_fs for good Date: Mon, 14 Feb 2022 17:34:38 +0100 Message-Id: <20220214163452.1568807-1-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220214_083543_696086_AED03A91 X-CRM114-Status: GOOD ( 17.10 ) X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org From: Arnd Bergmann Christoph Hellwig and a few others spent a huge effort on removing set_fs() from most of the important architectures, but about half the other architectures were never completed even though most of them don't actually use set_fs() at all. I did a patch for microblaze at some point, which turned out to be fairly generic, and now ported it to most other architectures, using new generic implementations of access_ok() and __{get,put}_kernel_nocheck(). Three architectures (sparc64, ia64, and sh) needed some extra work, which I also completed. The final series contains extra cleanup changes that touch all architectures. Please review and test these, so we can merge them for v5.18. The series is available at https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=set_fs for testing. Arnd Arnd Bergmann (14): uaccess: fix integer overflow on access_ok() sparc64: add __{get,put}_kernel_nocheck() nds32: fix access_ok() checks in get/put_user x86: use more conventional access_ok() definition uaccess: add generic __{get,put}_kernel_nofault mips: use simpler access_ok() uaccess: generalize access_ok() arm64: simplify access_ok() m68k: drop custom __access_ok() uaccess: remove most CONFIG_SET_FS users sparc64: remove CONFIG_SET_FS support sh: remove CONFIG_SET_FS support ia64: remove CONFIG_SET_FS support uaccess: drop set_fs leftovers arch/Kconfig | 3 - arch/alpha/Kconfig | 1 - arch/alpha/include/asm/processor.h | 4 - arch/alpha/include/asm/thread_info.h | 2 - arch/alpha/include/asm/uaccess.h | 53 +-------- arch/arc/Kconfig | 1 - arch/arc/include/asm/segment.h | 20 ---- arch/arc/include/asm/thread_info.h | 3 - arch/arc/include/asm/uaccess.h | 30 ----- arch/arm/include/asm/uaccess.h | 22 +--- arch/arm/kernel/swp_emulate.c | 2 +- arch/arm/kernel/traps.c | 2 +- arch/arm/lib/uaccess_with_memcpy.c | 10 -- arch/arm64/include/asm/uaccess.h | 29 +---- arch/csky/Kconfig | 1 - arch/csky/include/asm/processor.h | 2 - arch/csky/include/asm/segment.h | 10 -- arch/csky/include/asm/thread_info.h | 2 - arch/csky/include/asm/uaccess.h | 12 -- arch/csky/kernel/asm-offsets.c | 1 - arch/csky/kernel/signal.c | 2 +- arch/h8300/Kconfig | 1 - arch/h8300/include/asm/processor.h | 1 - arch/h8300/include/asm/segment.h | 40 ------- arch/h8300/include/asm/thread_info.h | 3 - arch/h8300/kernel/entry.S | 1 - arch/h8300/kernel/head_ram.S | 1 - arch/h8300/mm/init.c | 6 - arch/h8300/mm/memory.c | 1 - arch/hexagon/Kconfig | 1 - arch/hexagon/include/asm/thread_info.h | 6 - arch/hexagon/include/asm/uaccess.h | 25 ---- arch/hexagon/kernel/process.c | 1 - arch/ia64/Kconfig | 1 - arch/ia64/include/asm/processor.h | 4 - arch/ia64/include/asm/thread_info.h | 2 - arch/ia64/include/asm/uaccess.h | 26 ++--- arch/ia64/kernel/unaligned.c | 60 ++++++---- arch/m68k/include/asm/uaccess.h | 14 +-- arch/microblaze/Kconfig | 1 - arch/microblaze/include/asm/thread_info.h | 6 - arch/microblaze/include/asm/uaccess.h | 43 +------ arch/microblaze/kernel/asm-offsets.c | 1 - arch/microblaze/kernel/process.c | 1 - arch/mips/include/asm/uaccess.h | 47 +------- arch/nds32/Kconfig | 1 - arch/nds32/include/asm/thread_info.h | 4 - arch/nds32/include/asm/uaccess.h | 40 +++---- arch/nds32/kernel/process.c | 5 +- arch/nds32/mm/alignment.c | 3 - arch/nios2/Kconfig | 1 - arch/nios2/include/asm/thread_info.h | 9 -- arch/nios2/include/asm/uaccess.h | 23 +--- arch/nios2/kernel/signal.c | 20 ++-- arch/openrisc/Kconfig | 1 - arch/openrisc/include/asm/thread_info.h | 7 -- arch/openrisc/include/asm/uaccess.h | 42 +------ arch/parisc/include/asm/futex.h | 2 +- arch/parisc/include/asm/uaccess.h | 11 +- arch/parisc/lib/memcpy.c | 2 +- arch/powerpc/include/asm/uaccess.h | 13 +-- arch/powerpc/lib/sstep.c | 4 +- arch/riscv/include/asm/uaccess.h | 33 +----- arch/riscv/kernel/perf_callchain.c | 2 +- arch/s390/include/asm/uaccess.h | 13 +-- arch/sh/Kconfig | 1 - arch/sh/include/asm/processor.h | 1 - arch/sh/include/asm/segment.h | 33 ------ arch/sh/include/asm/thread_info.h | 2 - arch/sh/include/asm/uaccess.h | 24 +--- arch/sh/kernel/io_trapped.c | 9 +- arch/sh/kernel/process_32.c | 2 - arch/sh/kernel/traps_32.c | 30 +++-- arch/sparc/Kconfig | 1 - arch/sparc/include/asm/processor_32.h | 6 - arch/sparc/include/asm/processor_64.h | 4 - arch/sparc/include/asm/switch_to_64.h | 4 +- arch/sparc/include/asm/thread_info_64.h | 4 +- arch/sparc/include/asm/uaccess.h | 3 - arch/sparc/include/asm/uaccess_32.h | 31 +---- arch/sparc/include/asm/uaccess_64.h | 135 +++++++++++++--------- arch/sparc/kernel/process_32.c | 2 - arch/sparc/kernel/process_64.c | 12 -- arch/sparc/kernel/signal_32.c | 2 +- arch/sparc/kernel/traps_64.c | 2 - arch/sparc/lib/NGmemcpy.S | 3 +- arch/sparc/mm/init_64.c | 3 - arch/um/include/asm/uaccess.h | 7 +- arch/x86/include/asm/uaccess.h | 44 ++----- arch/xtensa/Kconfig | 1 - arch/xtensa/include/asm/asm-uaccess.h | 71 ------------ arch/xtensa/include/asm/processor.h | 7 -- arch/xtensa/include/asm/thread_info.h | 3 - arch/xtensa/include/asm/uaccess.h | 26 +---- arch/xtensa/kernel/asm-offsets.c | 3 - drivers/hid/uhid.c | 2 +- drivers/scsi/sg.c | 5 - fs/exec.c | 6 - include/asm-generic/access_ok.h | 51 ++++++++ include/asm-generic/uaccess.h | 46 +------- include/linux/syscalls.h | 4 - include/linux/uaccess.h | 59 +++------- include/rdma/ib.h | 2 +- kernel/events/callchain.c | 4 - kernel/events/core.c | 3 - kernel/exit.c | 14 --- kernel/kthread.c | 5 - kernel/stacktrace.c | 3 - kernel/trace/bpf_trace.c | 4 - mm/maccess.c | 119 ------------------- mm/memory.c | 8 -- net/bpfilter/bpfilter_kern.c | 2 +- 112 files changed, 315 insertions(+), 1239 deletions(-) delete mode 100644 arch/arc/include/asm/segment.h delete mode 100644 arch/csky/include/asm/segment.h delete mode 100644 arch/h8300/include/asm/segment.h delete mode 100644 arch/sh/include/asm/segment.h create mode 100644 include/asm-generic/access_ok.h -- 2.29.2 Cc: linux@armlinux.org.uk Cc: will@kernel.org Cc: guoren@kernel.org Cc: bcain@codeaurora.org Cc: geert@linux-m68k.org Cc: monstr@monstr.eu Cc: tsbogend@alpha.franken.de Cc: nickhu@andestech.com Cc: green.hu@gmail.com Cc: dinguyen@kernel.org Cc: shorne@gmail.com Cc: deller@gmx.de Cc: mpe@ellerman.id.au Cc: peterz@infradead.org Cc: mingo@redhat.com Cc: mark.rutland@arm.com Cc: hca@linux.ibm.com Cc: dalias@libc.org Cc: davem@davemloft.net Cc: richard@nod.at Cc: x86@kernel.org Cc: jcmvbkbc@gmail.com Cc: ebiederm@xmission.com Cc: arnd@arndb.de Cc: akpm@linux-foundation.org Cc: ardb@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-csky@vger.kernel.org Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: openrisc@lists.librecores.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Date: Mon, 14 Feb 2022 17:34:38 +0100 Subject: [OpenRISC] [PATCH 00/14] clean up asm/uaccess.h, kill set_fs for good Message-ID: <20220214163452.1568807-1-arnd@kernel.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: openrisc@lists.librecores.org From: Arnd Bergmann Christoph Hellwig and a few others spent a huge effort on removing set_fs() from most of the important architectures, but about half the other architectures were never completed even though most of them don't actually use set_fs() at all. I did a patch for microblaze at some point, which turned out to be fairly generic, and now ported it to most other architectures, using new generic implementations of access_ok() and __{get,put}_kernel_nocheck(). Three architectures (sparc64, ia64, and sh) needed some extra work, which I also completed. The final series contains extra cleanup changes that touch all architectures. Please review and test these, so we can merge them for v5.18. The series is available at https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=set_fs for testing. Arnd Arnd Bergmann (14): uaccess: fix integer overflow on access_ok() sparc64: add __{get,put}_kernel_nocheck() nds32: fix access_ok() checks in get/put_user x86: use more conventional access_ok() definition uaccess: add generic __{get,put}_kernel_nofault mips: use simpler access_ok() uaccess: generalize access_ok() arm64: simplify access_ok() m68k: drop custom __access_ok() uaccess: remove most CONFIG_SET_FS users sparc64: remove CONFIG_SET_FS support sh: remove CONFIG_SET_FS support ia64: remove CONFIG_SET_FS support uaccess: drop set_fs leftovers arch/Kconfig | 3 - arch/alpha/Kconfig | 1 - arch/alpha/include/asm/processor.h | 4 - arch/alpha/include/asm/thread_info.h | 2 - arch/alpha/include/asm/uaccess.h | 53 +-------- arch/arc/Kconfig | 1 - arch/arc/include/asm/segment.h | 20 ---- arch/arc/include/asm/thread_info.h | 3 - arch/arc/include/asm/uaccess.h | 30 ----- arch/arm/include/asm/uaccess.h | 22 +--- arch/arm/kernel/swp_emulate.c | 2 +- arch/arm/kernel/traps.c | 2 +- arch/arm/lib/uaccess_with_memcpy.c | 10 -- arch/arm64/include/asm/uaccess.h | 29 +---- arch/csky/Kconfig | 1 - arch/csky/include/asm/processor.h | 2 - arch/csky/include/asm/segment.h | 10 -- arch/csky/include/asm/thread_info.h | 2 - arch/csky/include/asm/uaccess.h | 12 -- arch/csky/kernel/asm-offsets.c | 1 - arch/csky/kernel/signal.c | 2 +- arch/h8300/Kconfig | 1 - arch/h8300/include/asm/processor.h | 1 - arch/h8300/include/asm/segment.h | 40 ------- arch/h8300/include/asm/thread_info.h | 3 - arch/h8300/kernel/entry.S | 1 - arch/h8300/kernel/head_ram.S | 1 - arch/h8300/mm/init.c | 6 - arch/h8300/mm/memory.c | 1 - arch/hexagon/Kconfig | 1 - arch/hexagon/include/asm/thread_info.h | 6 - arch/hexagon/include/asm/uaccess.h | 25 ---- arch/hexagon/kernel/process.c | 1 - arch/ia64/Kconfig | 1 - arch/ia64/include/asm/processor.h | 4 - arch/ia64/include/asm/thread_info.h | 2 - arch/ia64/include/asm/uaccess.h | 26 ++--- arch/ia64/kernel/unaligned.c | 60 ++++++---- arch/m68k/include/asm/uaccess.h | 14 +-- arch/microblaze/Kconfig | 1 - arch/microblaze/include/asm/thread_info.h | 6 - arch/microblaze/include/asm/uaccess.h | 43 +------ arch/microblaze/kernel/asm-offsets.c | 1 - arch/microblaze/kernel/process.c | 1 - arch/mips/include/asm/uaccess.h | 47 +------- arch/nds32/Kconfig | 1 - arch/nds32/include/asm/thread_info.h | 4 - arch/nds32/include/asm/uaccess.h | 40 +++---- arch/nds32/kernel/process.c | 5 +- arch/nds32/mm/alignment.c | 3 - arch/nios2/Kconfig | 1 - arch/nios2/include/asm/thread_info.h | 9 -- arch/nios2/include/asm/uaccess.h | 23 +--- arch/nios2/kernel/signal.c | 20 ++-- arch/openrisc/Kconfig | 1 - arch/openrisc/include/asm/thread_info.h | 7 -- arch/openrisc/include/asm/uaccess.h | 42 +------ arch/parisc/include/asm/futex.h | 2 +- arch/parisc/include/asm/uaccess.h | 11 +- arch/parisc/lib/memcpy.c | 2 +- arch/powerpc/include/asm/uaccess.h | 13 +-- arch/powerpc/lib/sstep.c | 4 +- arch/riscv/include/asm/uaccess.h | 33 +----- arch/riscv/kernel/perf_callchain.c | 2 +- arch/s390/include/asm/uaccess.h | 13 +-- arch/sh/Kconfig | 1 - arch/sh/include/asm/processor.h | 1 - arch/sh/include/asm/segment.h | 33 ------ arch/sh/include/asm/thread_info.h | 2 - arch/sh/include/asm/uaccess.h | 24 +--- arch/sh/kernel/io_trapped.c | 9 +- arch/sh/kernel/process_32.c | 2 - arch/sh/kernel/traps_32.c | 30 +++-- arch/sparc/Kconfig | 1 - arch/sparc/include/asm/processor_32.h | 6 - arch/sparc/include/asm/processor_64.h | 4 - arch/sparc/include/asm/switch_to_64.h | 4 +- arch/sparc/include/asm/thread_info_64.h | 4 +- arch/sparc/include/asm/uaccess.h | 3 - arch/sparc/include/asm/uaccess_32.h | 31 +---- arch/sparc/include/asm/uaccess_64.h | 135 +++++++++++++--------- arch/sparc/kernel/process_32.c | 2 - arch/sparc/kernel/process_64.c | 12 -- arch/sparc/kernel/signal_32.c | 2 +- arch/sparc/kernel/traps_64.c | 2 - arch/sparc/lib/NGmemcpy.S | 3 +- arch/sparc/mm/init_64.c | 3 - arch/um/include/asm/uaccess.h | 7 +- arch/x86/include/asm/uaccess.h | 44 ++----- arch/xtensa/Kconfig | 1 - arch/xtensa/include/asm/asm-uaccess.h | 71 ------------ arch/xtensa/include/asm/processor.h | 7 -- arch/xtensa/include/asm/thread_info.h | 3 - arch/xtensa/include/asm/uaccess.h | 26 +---- arch/xtensa/kernel/asm-offsets.c | 3 - drivers/hid/uhid.c | 2 +- drivers/scsi/sg.c | 5 - fs/exec.c | 6 - include/asm-generic/access_ok.h | 51 ++++++++ include/asm-generic/uaccess.h | 46 +------- include/linux/syscalls.h | 4 - include/linux/uaccess.h | 59 +++------- include/rdma/ib.h | 2 +- kernel/events/callchain.c | 4 - kernel/events/core.c | 3 - kernel/exit.c | 14 --- kernel/kthread.c | 5 - kernel/stacktrace.c | 3 - kernel/trace/bpf_trace.c | 4 - mm/maccess.c | 119 ------------------- mm/memory.c | 8 -- net/bpfilter/bpfilter_kern.c | 2 +- 112 files changed, 315 insertions(+), 1239 deletions(-) delete mode 100644 arch/arc/include/asm/segment.h delete mode 100644 arch/csky/include/asm/segment.h delete mode 100644 arch/h8300/include/asm/segment.h delete mode 100644 arch/sh/include/asm/segment.h create mode 100644 include/asm-generic/access_ok.h -- 2.29.2 Cc: linux at armlinux.org.uk Cc: will at kernel.org Cc: guoren at kernel.org Cc: bcain at codeaurora.org Cc: geert at linux-m68k.org Cc: monstr at monstr.eu Cc: tsbogend at alpha.franken.de Cc: nickhu at andestech.com Cc: green.hu at gmail.com Cc: dinguyen at kernel.org Cc: shorne at gmail.com Cc: deller at gmx.de Cc: mpe at ellerman.id.au Cc: peterz at infradead.org Cc: mingo at redhat.com Cc: mark.rutland at arm.com Cc: hca at linux.ibm.com Cc: dalias at libc.org Cc: davem at davemloft.net Cc: richard at nod.at Cc: x86 at kernel.org Cc: jcmvbkbc at gmail.com Cc: ebiederm at xmission.com Cc: arnd at arndb.de Cc: akpm at linux-foundation.org Cc: ardb at kernel.org Cc: linux-kernel at vger.kernel.org Cc: linux-alpha at vger.kernel.org Cc: linux-snps-arc at lists.infradead.org Cc: linux-arm-kernel at lists.infradead.org Cc: linux-csky at vger.kernel.org Cc: linux-hexagon at vger.kernel.org Cc: linux-ia64 at vger.kernel.org Cc: linux-m68k at lists.linux-m68k.org Cc: linux-mips at vger.kernel.org Cc: openrisc at lists.librecores.org Cc: linux-parisc at vger.kernel.org Cc: linuxppc-dev at lists.ozlabs.org Cc: linux-riscv at lists.infradead.org Cc: linux-s390 at vger.kernel.org Cc: linux-sh at vger.kernel.org Cc: sparclinux at vger.kernel.org Cc: linux-um at lists.infradead.org Cc: linux-xtensa at linux-xtensa.org Cc: linux-arch at vger.kernel.org Cc: linux-mm at kvack.org 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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2E9AAC433F5 for ; Mon, 14 Feb 2022 16:36:28 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Jy8xP72jPz3cTZ for ; Tue, 15 Feb 2022 03:36:25 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=AD+OGCC9; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2604:1380:4641:c500::1; helo=dfw.source.kernel.org; envelope-from=arnd@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=AD+OGCC9; dkim-atps=neutral Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Jy8wf5LRnz3bYh for ; Tue, 15 Feb 2022 03:35:46 +1100 (AEDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 11DFF614EA; Mon, 14 Feb 2022 16:35:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95D20C340E9; Mon, 14 Feb 2022 16:35:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644856542; bh=NCPtyXY6GSVFAxA9xMH/uI0qVAvzui4f6HWShmHq7S4=; h=From:To:Cc:Subject:Date:From; b=AD+OGCC91QW3gC/dZKsZFSSWI0QKTWjyYSyPe3ESJoZsA18Yxd+6C2XmKbO+BufBV pgOTeKAy/H78mpdds/cyxQ3VhN4bBP5a5vjc0WbkFTjxn+hvTh5aHadh4RocZ3TKWZ eb6b0ouxjuiSDysMNzxh//PeMK4OQFXVj3bLmv5B1B7q8Uq/AO4RDRlThvSeYzr3Ly Gc0VXxNLiJ5WO1pIX67udGR/GCDjJQpiIxvmjGV1mzioNZwxT26v6bU0vORAmaN8AJ nAspwe5m/jH1WNhsqM0Qybjj0jz1yeUDm3LP9c3MsBrk2+9J1cYolEm51L9D0B9ZO/ R/tiDrFKWPKmA== From: Arnd Bergmann To: Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org Subject: [PATCH 00/14] clean up asm/uaccess.h, kill set_fs for good Date: Mon, 14 Feb 2022 17:34:38 +0100 Message-Id: <20220214163452.1568807-1-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, dalias@libc.org, linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, peterz@infradead.org, jcmvbkbc@gmail.com, guoren@kernel.org, sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, will@kernel.org, ardb@kernel.org, linux-s390@vger.kernel.org, bcain@codeaurora.org, deller@gmx.de, x86@kernel.org, linux@armlinux.org.uk, linux-csky@vger.kernel.org, mingo@redhat.com, geert@linux-m68k.org, linux-snps-arc@lists.infradead.org, linux-xtensa@linux-xtensa.org, hca@linux.ibm.com, linux-alpha@vger.kernel.org, linux-um@lists.infradead.org, linux-m68k@lists.linux-m68k.org, openrisc@lists.librecores.org, green.hu@gmail.com, shorne@gmail.com, linux-arm-kernel@lists.infradead.org, monstr@monstr.eu, tsbogend@alpha.franken.de, linux-parisc@vger.kernel.org, nickhu@andestech.com, linux-mips@vger.kernel.org, dinguyen@kernel.org, ebiederm@xmission.com, richard@nod.at, akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org, davem@davemloft.net Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Arnd Bergmann Christoph Hellwig and a few others spent a huge effort on removing set_fs() from most of the important architectures, but about half the other architectures were never completed even though most of them don't actually use set_fs() at all. I did a patch for microblaze at some point, which turned out to be fairly generic, and now ported it to most other architectures, using new generic implementations of access_ok() and __{get,put}_kernel_nocheck(). Three architectures (sparc64, ia64, and sh) needed some extra work, which I also completed. The final series contains extra cleanup changes that touch all architectures. Please review and test these, so we can merge them for v5.18. The series is available at https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=set_fs for testing. Arnd Arnd Bergmann (14): uaccess: fix integer overflow on access_ok() sparc64: add __{get,put}_kernel_nocheck() nds32: fix access_ok() checks in get/put_user x86: use more conventional access_ok() definition uaccess: add generic __{get,put}_kernel_nofault mips: use simpler access_ok() uaccess: generalize access_ok() arm64: simplify access_ok() m68k: drop custom __access_ok() uaccess: remove most CONFIG_SET_FS users sparc64: remove CONFIG_SET_FS support sh: remove CONFIG_SET_FS support ia64: remove CONFIG_SET_FS support uaccess: drop set_fs leftovers arch/Kconfig | 3 - arch/alpha/Kconfig | 1 - arch/alpha/include/asm/processor.h | 4 - arch/alpha/include/asm/thread_info.h | 2 - arch/alpha/include/asm/uaccess.h | 53 +-------- arch/arc/Kconfig | 1 - arch/arc/include/asm/segment.h | 20 ---- arch/arc/include/asm/thread_info.h | 3 - arch/arc/include/asm/uaccess.h | 30 ----- arch/arm/include/asm/uaccess.h | 22 +--- arch/arm/kernel/swp_emulate.c | 2 +- arch/arm/kernel/traps.c | 2 +- arch/arm/lib/uaccess_with_memcpy.c | 10 -- arch/arm64/include/asm/uaccess.h | 29 +---- arch/csky/Kconfig | 1 - arch/csky/include/asm/processor.h | 2 - arch/csky/include/asm/segment.h | 10 -- arch/csky/include/asm/thread_info.h | 2 - arch/csky/include/asm/uaccess.h | 12 -- arch/csky/kernel/asm-offsets.c | 1 - arch/csky/kernel/signal.c | 2 +- arch/h8300/Kconfig | 1 - arch/h8300/include/asm/processor.h | 1 - arch/h8300/include/asm/segment.h | 40 ------- arch/h8300/include/asm/thread_info.h | 3 - arch/h8300/kernel/entry.S | 1 - arch/h8300/kernel/head_ram.S | 1 - arch/h8300/mm/init.c | 6 - arch/h8300/mm/memory.c | 1 - arch/hexagon/Kconfig | 1 - arch/hexagon/include/asm/thread_info.h | 6 - arch/hexagon/include/asm/uaccess.h | 25 ---- arch/hexagon/kernel/process.c | 1 - arch/ia64/Kconfig | 1 - arch/ia64/include/asm/processor.h | 4 - arch/ia64/include/asm/thread_info.h | 2 - arch/ia64/include/asm/uaccess.h | 26 ++--- arch/ia64/kernel/unaligned.c | 60 ++++++---- arch/m68k/include/asm/uaccess.h | 14 +-- arch/microblaze/Kconfig | 1 - arch/microblaze/include/asm/thread_info.h | 6 - arch/microblaze/include/asm/uaccess.h | 43 +------ arch/microblaze/kernel/asm-offsets.c | 1 - arch/microblaze/kernel/process.c | 1 - arch/mips/include/asm/uaccess.h | 47 +------- arch/nds32/Kconfig | 1 - arch/nds32/include/asm/thread_info.h | 4 - arch/nds32/include/asm/uaccess.h | 40 +++---- arch/nds32/kernel/process.c | 5 +- arch/nds32/mm/alignment.c | 3 - arch/nios2/Kconfig | 1 - arch/nios2/include/asm/thread_info.h | 9 -- arch/nios2/include/asm/uaccess.h | 23 +--- arch/nios2/kernel/signal.c | 20 ++-- arch/openrisc/Kconfig | 1 - arch/openrisc/include/asm/thread_info.h | 7 -- arch/openrisc/include/asm/uaccess.h | 42 +------ arch/parisc/include/asm/futex.h | 2 +- arch/parisc/include/asm/uaccess.h | 11 +- arch/parisc/lib/memcpy.c | 2 +- arch/powerpc/include/asm/uaccess.h | 13 +-- arch/powerpc/lib/sstep.c | 4 +- arch/riscv/include/asm/uaccess.h | 33 +----- arch/riscv/kernel/perf_callchain.c | 2 +- arch/s390/include/asm/uaccess.h | 13 +-- arch/sh/Kconfig | 1 - arch/sh/include/asm/processor.h | 1 - arch/sh/include/asm/segment.h | 33 ------ arch/sh/include/asm/thread_info.h | 2 - arch/sh/include/asm/uaccess.h | 24 +--- arch/sh/kernel/io_trapped.c | 9 +- arch/sh/kernel/process_32.c | 2 - arch/sh/kernel/traps_32.c | 30 +++-- arch/sparc/Kconfig | 1 - arch/sparc/include/asm/processor_32.h | 6 - arch/sparc/include/asm/processor_64.h | 4 - arch/sparc/include/asm/switch_to_64.h | 4 +- arch/sparc/include/asm/thread_info_64.h | 4 +- arch/sparc/include/asm/uaccess.h | 3 - arch/sparc/include/asm/uaccess_32.h | 31 +---- arch/sparc/include/asm/uaccess_64.h | 135 +++++++++++++--------- arch/sparc/kernel/process_32.c | 2 - arch/sparc/kernel/process_64.c | 12 -- arch/sparc/kernel/signal_32.c | 2 +- arch/sparc/kernel/traps_64.c | 2 - arch/sparc/lib/NGmemcpy.S | 3 +- arch/sparc/mm/init_64.c | 3 - arch/um/include/asm/uaccess.h | 7 +- arch/x86/include/asm/uaccess.h | 44 ++----- arch/xtensa/Kconfig | 1 - arch/xtensa/include/asm/asm-uaccess.h | 71 ------------ arch/xtensa/include/asm/processor.h | 7 -- arch/xtensa/include/asm/thread_info.h | 3 - arch/xtensa/include/asm/uaccess.h | 26 +---- arch/xtensa/kernel/asm-offsets.c | 3 - drivers/hid/uhid.c | 2 +- drivers/scsi/sg.c | 5 - fs/exec.c | 6 - include/asm-generic/access_ok.h | 51 ++++++++ include/asm-generic/uaccess.h | 46 +------- include/linux/syscalls.h | 4 - include/linux/uaccess.h | 59 +++------- include/rdma/ib.h | 2 +- kernel/events/callchain.c | 4 - kernel/events/core.c | 3 - kernel/exit.c | 14 --- kernel/kthread.c | 5 - kernel/stacktrace.c | 3 - kernel/trace/bpf_trace.c | 4 - mm/maccess.c | 119 ------------------- mm/memory.c | 8 -- net/bpfilter/bpfilter_kern.c | 2 +- 112 files changed, 315 insertions(+), 1239 deletions(-) delete mode 100644 arch/arc/include/asm/segment.h delete mode 100644 arch/csky/include/asm/segment.h delete mode 100644 arch/h8300/include/asm/segment.h delete mode 100644 arch/sh/include/asm/segment.h create mode 100644 include/asm-generic/access_ok.h -- 2.29.2 Cc: linux@armlinux.org.uk Cc: will@kernel.org Cc: guoren@kernel.org Cc: bcain@codeaurora.org Cc: geert@linux-m68k.org Cc: monstr@monstr.eu Cc: tsbogend@alpha.franken.de Cc: nickhu@andestech.com Cc: green.hu@gmail.com Cc: dinguyen@kernel.org Cc: shorne@gmail.com Cc: deller@gmx.de Cc: mpe@ellerman.id.au Cc: peterz@infradead.org Cc: mingo@redhat.com Cc: mark.rutland@arm.com Cc: hca@linux.ibm.com Cc: dalias@libc.org Cc: davem@davemloft.net Cc: richard@nod.at Cc: x86@kernel.org Cc: jcmvbkbc@gmail.com Cc: ebiederm@xmission.com Cc: arnd@arndb.de Cc: akpm@linux-foundation.org Cc: ardb@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-csky@vger.kernel.org Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: openrisc@lists.librecores.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E4F73C4332F for ; Mon, 14 Feb 2022 16:37:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=sprG8j0xqVp3O51RHMVoqNaWF5qb44lJlpeafSA8MfQ=; b=u4reO3w38Ku0zl s4iUze0YMlbEDQ9wpN7vDNLWLvhx0eozE4BCg36fn9NR0riCZXeTUcknscUsaC/7++4h+xeXTKZZK G41ciaA9WE/VZMNPBdd6oi+p4xV4weZu510+R4LnZyDo7v7MVaT5ydTj7B0MZAoIxd1j1pUqKlG/p upZmWlK0kuumlYE4TDcpsjFinrbpeSVy2VLRjs+rpxgTUIU5lWmIuWHXgHkX+JZW8YP7auDDajQEN vPyFyuhDfgI7Ys0hpebx/rxgUzjenVVLDZJ+b+1aZcMCzfNU9BbKbQD3lClGJHxDKiLE08Jc8En0i ysyRxVI9rt2quxI9kgoA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJeKJ-00G2JE-QS; Mon, 14 Feb 2022 16:35:47 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJeKF-00G2Hd-IS; Mon, 14 Feb 2022 16:35:46 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 11DFF614EA; Mon, 14 Feb 2022 16:35:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95D20C340E9; Mon, 14 Feb 2022 16:35:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644856542; bh=NCPtyXY6GSVFAxA9xMH/uI0qVAvzui4f6HWShmHq7S4=; h=From:To:Cc:Subject:Date:From; b=AD+OGCC91QW3gC/dZKsZFSSWI0QKTWjyYSyPe3ESJoZsA18Yxd+6C2XmKbO+BufBV pgOTeKAy/H78mpdds/cyxQ3VhN4bBP5a5vjc0WbkFTjxn+hvTh5aHadh4RocZ3TKWZ eb6b0ouxjuiSDysMNzxh//PeMK4OQFXVj3bLmv5B1B7q8Uq/AO4RDRlThvSeYzr3Ly Gc0VXxNLiJ5WO1pIX67udGR/GCDjJQpiIxvmjGV1mzioNZwxT26v6bU0vORAmaN8AJ nAspwe5m/jH1WNhsqM0Qybjj0jz1yeUDm3LP9c3MsBrk2+9J1cYolEm51L9D0B9ZO/ R/tiDrFKWPKmA== From: Arnd Bergmann To: Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org Cc: linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org Subject: [PATCH 00/14] clean up asm/uaccess.h, kill set_fs for good Date: Mon, 14 Feb 2022 17:34:38 +0100 Message-Id: <20220214163452.1568807-1-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220214_083543_696086_AED03A91 X-CRM114-Status: GOOD ( 17.10 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Arnd Bergmann Christoph Hellwig and a few others spent a huge effort on removing set_fs() from most of the important architectures, but about half the other architectures were never completed even though most of them don't actually use set_fs() at all. I did a patch for microblaze at some point, which turned out to be fairly generic, and now ported it to most other architectures, using new generic implementations of access_ok() and __{get,put}_kernel_nocheck(). Three architectures (sparc64, ia64, and sh) needed some extra work, which I also completed. The final series contains extra cleanup changes that touch all architectures. Please review and test these, so we can merge them for v5.18. The series is available at https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=set_fs for testing. Arnd Arnd Bergmann (14): uaccess: fix integer overflow on access_ok() sparc64: add __{get,put}_kernel_nocheck() nds32: fix access_ok() checks in get/put_user x86: use more conventional access_ok() definition uaccess: add generic __{get,put}_kernel_nofault mips: use simpler access_ok() uaccess: generalize access_ok() arm64: simplify access_ok() m68k: drop custom __access_ok() uaccess: remove most CONFIG_SET_FS users sparc64: remove CONFIG_SET_FS support sh: remove CONFIG_SET_FS support ia64: remove CONFIG_SET_FS support uaccess: drop set_fs leftovers arch/Kconfig | 3 - arch/alpha/Kconfig | 1 - arch/alpha/include/asm/processor.h | 4 - arch/alpha/include/asm/thread_info.h | 2 - arch/alpha/include/asm/uaccess.h | 53 +-------- arch/arc/Kconfig | 1 - arch/arc/include/asm/segment.h | 20 ---- arch/arc/include/asm/thread_info.h | 3 - arch/arc/include/asm/uaccess.h | 30 ----- arch/arm/include/asm/uaccess.h | 22 +--- arch/arm/kernel/swp_emulate.c | 2 +- arch/arm/kernel/traps.c | 2 +- arch/arm/lib/uaccess_with_memcpy.c | 10 -- arch/arm64/include/asm/uaccess.h | 29 +---- arch/csky/Kconfig | 1 - arch/csky/include/asm/processor.h | 2 - arch/csky/include/asm/segment.h | 10 -- arch/csky/include/asm/thread_info.h | 2 - arch/csky/include/asm/uaccess.h | 12 -- arch/csky/kernel/asm-offsets.c | 1 - arch/csky/kernel/signal.c | 2 +- arch/h8300/Kconfig | 1 - arch/h8300/include/asm/processor.h | 1 - arch/h8300/include/asm/segment.h | 40 ------- arch/h8300/include/asm/thread_info.h | 3 - arch/h8300/kernel/entry.S | 1 - arch/h8300/kernel/head_ram.S | 1 - arch/h8300/mm/init.c | 6 - arch/h8300/mm/memory.c | 1 - arch/hexagon/Kconfig | 1 - arch/hexagon/include/asm/thread_info.h | 6 - arch/hexagon/include/asm/uaccess.h | 25 ---- arch/hexagon/kernel/process.c | 1 - arch/ia64/Kconfig | 1 - arch/ia64/include/asm/processor.h | 4 - arch/ia64/include/asm/thread_info.h | 2 - arch/ia64/include/asm/uaccess.h | 26 ++--- arch/ia64/kernel/unaligned.c | 60 ++++++---- arch/m68k/include/asm/uaccess.h | 14 +-- arch/microblaze/Kconfig | 1 - arch/microblaze/include/asm/thread_info.h | 6 - arch/microblaze/include/asm/uaccess.h | 43 +------ arch/microblaze/kernel/asm-offsets.c | 1 - arch/microblaze/kernel/process.c | 1 - arch/mips/include/asm/uaccess.h | 47 +------- arch/nds32/Kconfig | 1 - arch/nds32/include/asm/thread_info.h | 4 - arch/nds32/include/asm/uaccess.h | 40 +++---- arch/nds32/kernel/process.c | 5 +- arch/nds32/mm/alignment.c | 3 - arch/nios2/Kconfig | 1 - arch/nios2/include/asm/thread_info.h | 9 -- arch/nios2/include/asm/uaccess.h | 23 +--- arch/nios2/kernel/signal.c | 20 ++-- arch/openrisc/Kconfig | 1 - arch/openrisc/include/asm/thread_info.h | 7 -- arch/openrisc/include/asm/uaccess.h | 42 +------ arch/parisc/include/asm/futex.h | 2 +- arch/parisc/include/asm/uaccess.h | 11 +- arch/parisc/lib/memcpy.c | 2 +- arch/powerpc/include/asm/uaccess.h | 13 +-- arch/powerpc/lib/sstep.c | 4 +- arch/riscv/include/asm/uaccess.h | 33 +----- arch/riscv/kernel/perf_callchain.c | 2 +- arch/s390/include/asm/uaccess.h | 13 +-- arch/sh/Kconfig | 1 - arch/sh/include/asm/processor.h | 1 - arch/sh/include/asm/segment.h | 33 ------ arch/sh/include/asm/thread_info.h | 2 - arch/sh/include/asm/uaccess.h | 24 +--- arch/sh/kernel/io_trapped.c | 9 +- arch/sh/kernel/process_32.c | 2 - arch/sh/kernel/traps_32.c | 30 +++-- arch/sparc/Kconfig | 1 - arch/sparc/include/asm/processor_32.h | 6 - arch/sparc/include/asm/processor_64.h | 4 - arch/sparc/include/asm/switch_to_64.h | 4 +- arch/sparc/include/asm/thread_info_64.h | 4 +- arch/sparc/include/asm/uaccess.h | 3 - arch/sparc/include/asm/uaccess_32.h | 31 +---- arch/sparc/include/asm/uaccess_64.h | 135 +++++++++++++--------- arch/sparc/kernel/process_32.c | 2 - arch/sparc/kernel/process_64.c | 12 -- arch/sparc/kernel/signal_32.c | 2 +- arch/sparc/kernel/traps_64.c | 2 - arch/sparc/lib/NGmemcpy.S | 3 +- arch/sparc/mm/init_64.c | 3 - arch/um/include/asm/uaccess.h | 7 +- arch/x86/include/asm/uaccess.h | 44 ++----- arch/xtensa/Kconfig | 1 - arch/xtensa/include/asm/asm-uaccess.h | 71 ------------ arch/xtensa/include/asm/processor.h | 7 -- arch/xtensa/include/asm/thread_info.h | 3 - arch/xtensa/include/asm/uaccess.h | 26 +---- arch/xtensa/kernel/asm-offsets.c | 3 - drivers/hid/uhid.c | 2 +- drivers/scsi/sg.c | 5 - fs/exec.c | 6 - include/asm-generic/access_ok.h | 51 ++++++++ include/asm-generic/uaccess.h | 46 +------- include/linux/syscalls.h | 4 - include/linux/uaccess.h | 59 +++------- include/rdma/ib.h | 2 +- kernel/events/callchain.c | 4 - kernel/events/core.c | 3 - kernel/exit.c | 14 --- kernel/kthread.c | 5 - kernel/stacktrace.c | 3 - kernel/trace/bpf_trace.c | 4 - mm/maccess.c | 119 ------------------- mm/memory.c | 8 -- net/bpfilter/bpfilter_kern.c | 2 +- 112 files changed, 315 insertions(+), 1239 deletions(-) delete mode 100644 arch/arc/include/asm/segment.h delete mode 100644 arch/csky/include/asm/segment.h delete mode 100644 arch/h8300/include/asm/segment.h delete mode 100644 arch/sh/include/asm/segment.h create mode 100644 include/asm-generic/access_ok.h -- 2.29.2 Cc: linux@armlinux.org.uk Cc: will@kernel.org Cc: guoren@kernel.org Cc: bcain@codeaurora.org Cc: geert@linux-m68k.org Cc: monstr@monstr.eu Cc: tsbogend@alpha.franken.de Cc: nickhu@andestech.com Cc: green.hu@gmail.com Cc: dinguyen@kernel.org Cc: shorne@gmail.com Cc: deller@gmx.de Cc: mpe@ellerman.id.au Cc: peterz@infradead.org Cc: mingo@redhat.com Cc: mark.rutland@arm.com Cc: hca@linux.ibm.com Cc: dalias@libc.org Cc: davem@davemloft.net Cc: richard@nod.at Cc: x86@kernel.org Cc: jcmvbkbc@gmail.com Cc: ebiederm@xmission.com Cc: arnd@arndb.de Cc: akpm@linux-foundation.org Cc: ardb@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-csky@vger.kernel.org Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: openrisc@lists.librecores.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel