From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f197.google.com (mail-wr0-f197.google.com [209.85.128.197]) by kanga.kvack.org (Postfix) with ESMTP id 723F66B0038 for ; Tue, 17 Oct 2017 08:53:33 -0400 (EDT) Received: by mail-wr0-f197.google.com with SMTP id p46so782923wrb.19 for ; Tue, 17 Oct 2017 05:53:33 -0700 (PDT) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com. [45.249.212.188]) by mx.google.com with ESMTPS id a84si6974619wmc.144.2017.10.17.05.53.28 for (version=TLS1 cipher=AES128-SHA bits=128/128); Tue, 17 Oct 2017 05:53:31 -0700 (PDT) From: "Liuwenliang (Lamb)" Subject: Re: [PATCH 00/11] KASan for arm Date: Tue, 17 Oct 2017 12:41:49 +0000 Message-ID: References: <20171011082227.20546-1-liuwenliang@huawei.com> <26660524-3b0a-c634-e8ce-4ba7e10c055d@gmail.com> <44c86924-930b-3eff-55b8-b02c9060ebe3@gmail.com> <4b7b2b3c-cba9-d8ab-72a7-119bd5fae65d@redhat.com> <20171011225805.GY20805@n2100.armlinux.org.uk> In-Reply-To: <20171011225805.GY20805@n2100.armlinux.org.uk> Content-Language: zh-CN Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Russell King - ARM Linux , Laura Abbott Cc: Florian Fainelli , "aryabinin@virtuozzo.com" , "afzal.mohd.ma@gmail.com" , "kirill.shutemov@linux.intel.com" , "mhocko@suse.com" , "cdall@linaro.org" , "marc.zyngier@arm.com" , "catalin.marinas@arm.com" , "akpm@linux-foundation.org" , "mawilcox@microsoft.com" , "tglx@linutronix.de" , "thgarnie@google.com" , "keescook@chromium.org" , "arnd@arndb.de" , "vladimir.murzin@arm.com" , "tixy@linaro.org" , "ard.biesheuvel@linaro.org" , "robin.murphy@arm.com" , "mingo@kernel.org" , "grygorii.strashko@linaro.org" , Nicolas Pitre , "opendmb@gmail.com" , "linux-kernel@vger.kernel.org" , "kasan-dev@googlegroups.com" , Zengweilin , "linux-mm@kvack.org" , Dailei , "glider@google.com" , "dvyukov@google.com" , Jiazhenghua , "linux-arm-kernel@lists.infradead.org" , Heshaoliang On 10/17/2017 7:40 PM, Abbott Liu wrote: >On Wed, Oct 11, 2017 at 03:10:56PM -0700, Laura Abbott wrote: >The decompressor does not link with the standard C library, so it >needs to provide implementations of standard C library functionality >where required. That means, if we have any memset() users, we need >to provide the memset() function. > >The undef is there to avoid the optimisation we have in asm/string.h >for __memzero, because we don't want to use __memzero in the >decompressor. > >Whether memset() is required depends on which compression method is >being used - LZO and LZ4 appear to make direct references to it, but >the inflate (gzip) decompressor code does not. > >What this means is that all supported kernel compression options need >to be tested. Thanks for your review. I am sorry that I am so late to reply your email. I will test all arm kernel compression options. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org