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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED autolearn=ham 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 502A6C3279B for ; Fri, 6 Jul 2018 17:30:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B5680208E6 for ; Fri, 6 Jul 2018 17:30:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=efficios.com header.i=@efficios.com header.b="HrQD6qSV" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B5680208E6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=efficios.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933679AbeGFRaH (ORCPT ); Fri, 6 Jul 2018 13:30:07 -0400 Received: from mail.efficios.com ([167.114.142.138]:36414 "EHLO mail.efficios.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932840AbeGFRaG (ORCPT ); Fri, 6 Jul 2018 13:30:06 -0400 Received: from localhost (ip6-localhost [IPv6:::1]) by mail.efficios.com (Postfix) with ESMTP id 8CC121ABA0C; Fri, 6 Jul 2018 13:30:05 -0400 (EDT) Received: from mail.efficios.com ([IPv6:::1]) by localhost (mail02.efficios.com [IPv6:::1]) (amavisd-new, port 10032) with ESMTP id TwnR58Thcy5D; Fri, 6 Jul 2018 13:30:05 -0400 (EDT) Received: from localhost (ip6-localhost [IPv6:::1]) by mail.efficios.com (Postfix) with ESMTP id 291FE1ABA09; Fri, 6 Jul 2018 13:30:05 -0400 (EDT) DKIM-Filter: OpenDKIM Filter v2.10.3 mail.efficios.com 291FE1ABA09 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=efficios.com; s=default; t=1530898205; bh=sGTjVLhKs7UlysWjuGubEtVrN//e5SMQvM3qf14Jffs=; h=Date:From:To:Message-ID:MIME-Version; b=HrQD6qSV+HzEMvb0cVMWupAZm9quctTKyl/9mDSVpROCIJn6mPW+uPg4r2nIIb1gN TsLW/Kqfe5Bp5Nd9Fkv7Wfb7N1gDA64foSVRci0vl9V4c0gV5yR/vzgoLh100nmX8K 02tUwH2gIdURWN/LFGEWCkPILYaDWTozVuB5SSsp8DWNuVRpYb6qxe0T+L6bm8SM0U 5j8r/PHARTOT6NouauOvqU+l/bgomKMo5qB/qpnnu6Weka6dy+IsaMjSG/H2szUNPK I3s4gAwdOn/2Q3MrBjV9CUuz6CykiTv6IvkEMAW3REbdFcIeYMbq+xWVnot3mfuMya Y+8B/GgjMvSWg== X-Virus-Scanned: amavisd-new at efficios.com Received: from mail.efficios.com ([IPv6:::1]) by localhost (mail02.efficios.com [IPv6:::1]) (amavisd-new, port 10026) with ESMTP id p3hMfVCZ1s-g; Fri, 6 Jul 2018 13:30:04 -0400 (EDT) Received: from mail02.efficios.com (mail02.efficios.com [167.114.142.138]) by mail.efficios.com (Postfix) with ESMTP id E63371ABA02; Fri, 6 Jul 2018 13:30:04 -0400 (EDT) Date: Fri, 6 Jul 2018 13:30:04 -0400 (EDT) From: Mathieu Desnoyers To: Will Deacon , Russell King , Catalin Marinas Cc: linux-kernel , linux-arm-kernel Message-ID: <208280844.1302.1530898204811.JavaMail.zimbra@efficios.com> Subject: arm32: Missing __get_user for u64 user type MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [167.114.142.138] X-Mailer: Zimbra 8.8.8_GA_2096 (ZimbraWebClient - FF52 (Linux)/8.8.8_GA_1703) Thread-Index: iQAX6uI6aXc4dMCNkBwMyYDTCRPEzQ== Thread-Topic: arm32: Missing __get_user for u64 user type Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, The restartable sequence code needs a __get_user for u64 types. arm32. Although a get_user() is implemented, the architecture lacks support for 8 bytes __get_user(). Do you guys recommend extending __get_user_err() to do two __get_user_asm_word() to read it through a temporary union, or do you have other approaches in mind ? Thanks, Mathieu -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com