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=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_NEOMUTT 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 3D16FC282CE for ; Tue, 4 Jun 2019 08:43:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 18D1A24B8B for ; Tue, 4 Jun 2019 08:43:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726976AbfFDIn4 (ORCPT ); Tue, 4 Jun 2019 04:43:56 -0400 Received: from foss.arm.com ([217.140.101.70]:37798 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726637AbfFDInz (ORCPT ); Tue, 4 Jun 2019 04:43:55 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6DD2BA78; Tue, 4 Jun 2019 01:43:55 -0700 (PDT) Received: from mbp (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 69A7B3F246; Tue, 4 Jun 2019 01:43:53 -0700 (PDT) Date: Tue, 4 Jun 2019 09:43:50 +0100 From: Catalin Marinas To: Viresh Kumar Cc: Dave Martin , Marc Zyngier , James Morse , Julien Thierry , Suzuki K Pouloze , Will Deacon , Vincent Guittot , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org Subject: Re: [PATCH] KVM: arm64: Drop 'const' from argument of vq_present() Message-ID: <20190604084349.prnnvjvjaeuhsmgs@mbp> References: <699121e5c938c6f4b7b14a7e2648fa15af590a4a.1559623368.git.viresh.kumar@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <699121e5c938c6f4b7b14a7e2648fa15af590a4a.1559623368.git.viresh.kumar@linaro.org> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 04, 2019 at 10:13:19AM +0530, Viresh Kumar wrote: > We currently get following compilation warning: > > arch/arm64/kvm/guest.c: In function 'set_sve_vls': > arch/arm64/kvm/guest.c:262:18: warning: passing argument 1 of 'vq_present' from incompatible pointer type > arch/arm64/kvm/guest.c:212:13: note: expected 'const u64 (* const)[8]' but argument is of type 'u64 (*)[8]' Since the vq_present() function does not modify the vqs array, I don't understand why this warning. Compiler bug? -- Catalin