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[23.128.96.18]) by mx.google.com with ESMTP id q15si7890673edi.284.2021.01.18.12.04.58; Mon, 18 Jan 2021 12:05:22 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437870AbhARUBl (ORCPT + 99 others); Mon, 18 Jan 2021 15:01:41 -0500 Received: from outpost1.zedat.fu-berlin.de ([130.133.4.66]:41217 "EHLO outpost1.zedat.fu-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2437786AbhARUAe (ORCPT ); Mon, 18 Jan 2021 15:00:34 -0500 Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost.zedat.fu-berlin.de (Exim 4.94) with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (envelope-from ) id 1l1agk-001qlf-Vo; Mon, 18 Jan 2021 20:59:46 +0100 Received: from p5b13a61e.dip0.t-ipconnect.de ([91.19.166.30] helo=[192.168.178.139]) by inpost2.zedat.fu-berlin.de (Exim 4.94) with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (envelope-from ) id 1l1agk-001doN-9y; Mon, 18 Jan 2021 20:59:46 +0100 Subject: Re: [PATCH] sh: kdump: add some attribute to function To: Yejune Deng , ysato@users.sourceforge.jp, dalias@libc.org Cc: linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org References: <1607582998-13098-1-git-send-email-yejune.deng@gmail.com> From: John Paul Adrian Glaubitz Message-ID: <2a4c3426-8afb-f56f-b31a-44a4505f5030@physik.fu-berlin.de> Date: Mon, 18 Jan 2021 20:59:45 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <1607582998-13098-1-git-send-email-yejune.deng@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Original-Sender: glaubitz@physik.fu-berlin.de X-Originating-IP: 91.19.166.30 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/10/20 7:49 AM, Yejune Deng wrote: > add '__iomem' for ioremap() and '__user' for copy_to_user(). > > Signed-off-by: Yejune Deng > --- > arch/sh/kernel/crash_dump.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/sh/kernel/crash_dump.c b/arch/sh/kernel/crash_dump.c > index a908612..5b41b59 100644 > --- a/arch/sh/kernel/crash_dump.c > +++ b/arch/sh/kernel/crash_dump.c > @@ -26,7 +26,7 @@ > ssize_t copy_oldmem_page(unsigned long pfn, char *buf, > size_t csize, unsigned long offset, int userbuf) > { > - void *vaddr; > + void __iomem *vaddr; > > if (!csize) > return 0; > @@ -34,7 +34,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf, > vaddr = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE); > > if (userbuf) { > - if (copy_to_user(buf, (vaddr + offset), csize)) { > + if (copy_to_user((void __user *)buf, (vaddr + offset), csize)) { > iounmap(vaddr); > return -EFAULT; > } Successfully boot-tested on my SH-7785LCR. No regressions. Tested-by: John Paul Adrian Glaubitz -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913