From patchwork Tue Mar 25 12:16:09 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guo Ren X-Patchwork-Id: 14029079 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 64026C36005 for ; Tue, 25 Mar 2025 13:53:58 +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:References:In-Reply-To: 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: List-Owner; bh=XZxzr38vZMpMP9Rvi0NCenOxX+07sPo+pyYWqwgiadg=; b=zayliZJMIsiHFz i35WUXRYN4dUoXSJRsHvuHTRW2/mo4rctbEms+gzp0mP4BTKzWi00Na5c4GepKZle2KfX+k50L4pv cPFP6abYPSMmGo2roYxam/i1z6WGEIZ3qYwGoS9tT3ot32CERmJMsTueluzqNMnCJYaR9Why8Nyno hyD64RNCZMQOEKauyvPh3CEHL0WPq0B65C2Dd/scMznOed4ARUIg0dC0ErVNtUnYnwNXHLciSo/D/ Xh2MZPJjZvwAW14Mah6GONWmM1t5g4gOrNNE4k8cgzKscTsd/3+4lrq2EB0J+nhRHJB/pCu94d2Q5 0pLE2TtQUl7TObbZODkA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.1 #2 (Red Hat Linux)) id 1tx4j3-000000066Zc-0ABU; Tue, 25 Mar 2025 13:53:53 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.1 #2 (Red Hat Linux)) id 1tx3JY-00000005noX-2q1E; Tue, 25 Mar 2025 12:23:29 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 03F2A4368C; Tue, 25 Mar 2025 12:23:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2976FC4CEE4; Tue, 25 Mar 2025 12:23:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742905408; bh=pIv4vnuS3dsIZ+vCl3ehqADgm2CZ2tBy3QR8swaXSZQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ecDCGr6OLJrXP13nyG/CgfeqC9ouA1qT3tlj+OsrVH1NtYD+Twp5WMbEHjMMkk81f stvP5ulWY1CYT8IOPOz08uY1HZBIlRPl1RvD/lfIzSGNe84mV4QvJl7p4JgmuvzAGK 4RQVcdL24R3V34bLEfSycUxh++RgrXULYrYbovXoNTKWlQFJodYvno3cZge1QELjR8 9C6TOI1VyQMTYJ6+SrsJ+n3smhuFVy+uvJ4yY+gtiJBw2C4LdtFBWY4B9hpCJDn6Wt XZ5TT6fYnWqqxrxfJ2ivZTzD3naWTrT9gp922T0ATA8xVyN89LV9zmP9RucwuPViGB 6t4JQnchHEBxw== From: guoren@kernel.org To: arnd@arndb.de, gregkh@linuxfoundation.org, torvalds@linux-foundation.org, paul.walmsley@sifive.com, palmer@dabbelt.com, anup@brainfault.org, atishp@atishpatra.org, oleg@redhat.com, kees@kernel.org, tglx@linutronix.de, will@kernel.org, mark.rutland@arm.com, brauner@kernel.org, akpm@linux-foundation.org, rostedt@goodmis.org, edumazet@google.com, unicorn_wang@outlook.com, inochiama@outlook.com, gaohan@iscas.ac.cn, shihua@iscas.ac.cn, jiawei@iscas.ac.cn, wuwei2016@iscas.ac.cn, drew@pdp7.com, prabhakar.mahadev-lad.rj@bp.renesas.com, ctsai390@andestech.com, wefu@redhat.com, kuba@kernel.org, pabeni@redhat.com, josef@toxicpanda.com, dsterba@suse.com, mingo@redhat.com, peterz@infradead.org, boqun.feng@gmail.com, guoren@kernel.org, xiao.w.wang@intel.com, qingfang.deng@siflower.com.cn, leobras@redhat.com, jszhang@kernel.org, conor.dooley@microchip.com, samuel.holland@sifive.com, yongxuan.wang@sifive.com, luxu.kernel@bytedance.com, david@redhat.com, ruanjinjie@huawei.com, cuiyunhui@bytedance.com, wangkefeng.wang@huawei.com, qiaozhe@iscas.ac.cn Cc: ardb@kernel.org, ast@kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-mm@kvack.org, linux-crypto@vger.kernel.org, bpf@vger.kernel.org, linux-input@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-serial@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, maple-tree@lists.infradead.org, linux-trace-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-atm-general@lists.sourceforge.net, linux-btrfs@vger.kernel.org, netfilter-devel@vger.kernel.org, coreteam@netfilter.org, linux-nfs@vger.kernel.org, linux-sctp@vger.kernel.org, linux-usb@vger.kernel.org, linux-media@vger.kernel.org Subject: [RFC PATCH V3 28/43] rv64ilp32_abi: iov_iter: Resize kvec to match iov_iter's size Date: Tue, 25 Mar 2025 08:16:09 -0400 Message-Id: <20250325121624.523258-29-guoren@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20250325121624.523258-1-guoren@kernel.org> References: <20250325121624.523258-1-guoren@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250325_052328_738704_B22A43F5 X-CRM114-Status: UNSURE ( 7.04 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: "Guo Ren (Alibaba DAMO Academy)" As drivers/vhost/vringh.c uses BUILD_BUG_ON(sizeof(struct iovec) != sizeof(struct kvec)), make them the same. Signed-off-by: Guo Ren (Alibaba DAMO Academy) --- include/linux/uio.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/uio.h b/include/linux/uio.h index 8ada84e85447..0e1ca023374c 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -17,7 +17,13 @@ typedef unsigned int __bitwise iov_iter_extraction_t; struct kvec { void *iov_base; /* and that should *never* hold a userland pointer */ +#if defined(CONFIG_64BIT) && (BITS_PER_LONG == 32) + u32 __pad1; +#endif size_t iov_len; +#if defined(CONFIG_64BIT) && (BITS_PER_LONG == 32) + u32 __pad2; +#endif }; enum iter_type {