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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 DAC04C43387 for ; Tue, 8 Jan 2019 08:52:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AF4EF2070B for ; Tue, 8 Jan 2019 08:52:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728182AbfAHIwE (ORCPT ); Tue, 8 Jan 2019 03:52:04 -0500 Received: from mx1.redhat.com ([209.132.183.28]:52288 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727295AbfAHIwE (ORCPT ); Tue, 8 Jan 2019 03:52:04 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 15A4E369A0; Tue, 8 Jan 2019 08:52:04 +0000 (UTC) Received: from localhost (ovpn-8-23.pek2.redhat.com [10.72.8.23]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 441A1662C6; Tue, 8 Jan 2019 08:52:00 +0000 (UTC) Date: Tue, 8 Jan 2019 16:51:57 +0800 From: Baoquan He To: Dave Young Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org, AKASHI Takahiro , Andrew Morton , "Eric W. Biederman" , x86@kernel.org, Ingo Molnar , Borislav Petkov , Thomas Gleixner , Vivek Goyal Subject: Re: [PATCH V2] x86/kexec: fix a kexec_file_load failure Message-ID: <20190108085157.GB17983@MiWiFi-R3L-srv> References: <20181228011247.GA9999@dhcp-128-65.nay.redhat.com> <20190108052440.GA17983@MiWiFi-R3L-srv> <20190108084657.GA32321@dhcp-128-65.nay.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190108084657.GA32321@dhcp-128-65.nay.redhat.com> User-Agent: Mutt/1.9.1 (2017-09-22) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Tue, 08 Jan 2019 08:52:04 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/08/19 at 04:46pm, Dave Young wrote: > > Wondering why this place doesn't need the initialization assignment. > > Isn't it to assign in all places before kexec_add_buffer() calling? > > C designated initializers will make sure to initialize it as zero. > We set KEXEC_BUF_MEM_UNKNOWN as 0 so it just works. Got it, it works, thanks. People may need check code to find out KEXEC_BUF_MEM_UNKNOWN is 0, then realize this fact. Other than this, it looks good to me, ack it. Acked-by: Baoquan He Thanks Baoquan