From patchwork Mon May 17 20:33:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12263133 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D42CCC433B4 for ; Mon, 17 May 2021 20:34:46 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 66DEE610CC for ; Mon, 17 May 2021 20:34:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 66DEE610CC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id CF7588D0003; Mon, 17 May 2021 16:34:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id CCE5A8D0001; Mon, 17 May 2021 16:34:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B954A8D0003; Mon, 17 May 2021 16:34:45 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0034.hostedemail.com [216.40.44.34]) by kanga.kvack.org (Postfix) with ESMTP id 8B2688D0001 for ; Mon, 17 May 2021 16:34:45 -0400 (EDT) Received: from smtpin38.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 32ADF98A9 for ; Mon, 17 May 2021 20:34:45 +0000 (UTC) X-FDA: 78151876530.38.6C709BF Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf19.hostedemail.com (Postfix) with ESMTP id 6244890009E2 for ; Mon, 17 May 2021 20:34:43 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 8AC92610CB; Mon, 17 May 2021 20:34:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1621283683; bh=Kbl2wOYwBWNjV94hJ4LLgZrf/sgS5srd8DPZuYSb+tw=; h=From:To:Cc:Subject:Date:From; b=pvMEefNtYHlt02+c8r4F+KdUiqRzF765jugqWdbFgSJi9MLtGzpZe1cEIW9QIwzZh hBtCgywvNQ5VrPdZcCobcJdQqUTGLDTmYsv+WrcR++0cTnBqwerW+1w2fUi16iLCGT SiB/r4Ts2NxtOvJPru4UbLcUuqWG+bMoKOQbwEc9LPf4gC9Gap/QqgbE/TjIU9QZ0q Ut0ufhe4STSmj16kT1wuK1IA0DUgnztM1UYTs3iwvle7EpMJtfkdLxLKfVnmH9ajuh Y5cEHpgNFA3AIAEB/1oE8kSuuy0J/t2lmC4y5bRo4wg+cJM6E/8WIh0E/8WLoHZ9JD h6ob3ewIx/pBQ== From: Arnd Bergmann To: linux-arch@vger.kernel.org Cc: Arnd Bergmann , Christoph Hellwig , Alexander Viro , Andrew Morton , Borislav Petkov , Brian Gerst , Eric Biederman , Ingo Molnar , "H. Peter Anvin" , Thomas Gleixner , Linux ARM , linux-kernel@vger.kernel.org, Linux-MM , kexec@lists.infradead.org Subject: [PATCH v3 0/4] compat: remove compat_alloc_user_space callers Date: Mon, 17 May 2021 22:33:39 +0200 Message-Id: <20210517203343.3941777-1-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-Rspamd-Queue-Id: 6244890009E2 Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=pvMEefNt; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf19.hostedemail.com: domain of arnd@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=arnd@kernel.org X-Rspamd-Server: rspam03 X-Stat-Signature: semugssjjwwkbf4pnfnco9r7sx6fmsgp X-HE-Tag: 1621283683-131297 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Arnd Bergmann Going through compat_alloc_user_space() to convert indirect system call arguments tends to add complexity compared to handling the native and compat logic in the same code. There is one other trivial patch I resent for the atomisp staging driver and a longer series for networking ioctls that I need to revalidate before submitting again. Sorry for the long delay before resending this. Once everyone is happy with the latest version, I would add it to the asm-generic tree for a 5.14 merge. Arnd --- Changes in v3: - fix whitespace as pointed out by Christoph Hellwig - minor build fixes - rebase to v5.13-rc1 Changes in v2: - address review comments from Christoph Hellwig - split syscall removal into a separate patch - replace __X32_COND_SYSCALL() with individual macros for x32 Link: https://lore.kernel.org/lkml/20201208150614.GA15765@infradead.org/ Arnd Bergmann (4): kexec: simplify compat_sys_kexec_load mm: simplify compat_sys_move_pages mm: simplify compat numa syscalls compat: remove some compat entry points arch/arm64/include/asm/unistd32.h | 12 +- arch/mips/kernel/syscalls/syscall_n32.tbl | 12 +- arch/mips/kernel/syscalls/syscall_o32.tbl | 12 +- arch/parisc/kernel/syscalls/syscall.tbl | 10 +- arch/powerpc/kernel/syscalls/syscall.tbl | 12 +- arch/s390/kernel/syscalls/syscall.tbl | 12 +- arch/sparc/kernel/syscalls/syscall.tbl | 12 +- arch/x86/entry/syscall_x32.c | 2 + arch/x86/entry/syscalls/syscall_32.tbl | 6 +- arch/x86/entry/syscalls/syscall_64.tbl | 4 +- include/linux/compat.h | 43 +---- include/linux/kexec.h | 2 - include/uapi/asm-generic/unistd.h | 12 +- kernel/kexec.c | 90 ++++------ kernel/sys_ni.c | 5 - mm/mempolicy.c | 195 +++++----------------- mm/migrate.c | 50 +++--- 17 files changed, 164 insertions(+), 327 deletions(-)