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