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=-11.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 D2B2BC04EB9 for ; Mon, 3 Dec 2018 07:51:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A3A712145D for ; Mon, 3 Dec 2018 07:51:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A3A712145D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.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 S1725992AbeLCHwB (ORCPT ); Mon, 3 Dec 2018 02:52:01 -0500 Received: from mail.bootlin.com ([62.4.15.54]:48808 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725938AbeLCHwA (ORCPT ); Mon, 3 Dec 2018 02:52:00 -0500 Received: by mail.bootlin.com (Postfix, from userid 110) id 8E0C820CFC; Mon, 3 Dec 2018 08:51:54 +0100 (CET) Received: from localhost.localdomain (91-160-177-164.subs.proxad.net [91.160.177.164]) by mail.bootlin.com (Postfix) with ESMTPSA id 43EA720786; Mon, 3 Dec 2018 08:51:54 +0100 (CET) From: Boris Brezillon To: Huijin Park , Boris Brezillon Cc: linux-kernel@vger.kernel.org, Marek Vasut , Geert Uytterhoeven , linux-mtd@lists.infradead.org, bbanghj.park@gmail.com Subject: Re: [v3] mtd: spi-nor: cast to u64 to avoid uint overflows Date: Mon, 3 Dec 2018 08:51:54 +0100 Message-Id: <20181203075154.28637-1-boris.brezillon@bootlin.com> X-Mailer: git-send-email 2.17.1 X-linux-mtd-patch-notification: thanks X-linux-mtd-patch-commit: 22f70ce85f209cf6e08a3b3aa7f923937d8893ce In-Reply-To: <1543392134-1443-1-git-send-email-huijin.park@samsung.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2018-11-28 at 08:02:14 UTC, Huijin Park wrote: > From: "huijin.park" > > The "params->size" is defined as "u64". > And "info->sector_size" and "info->n_sectors" are defined as > unsigned int and u16. > Thus, u64 data might have strange data(loss data) if the result > overflows an unsigned int. > This patch casts "info->sector_size" to an u64. > > Signed-off-by: huijin.park > Reviewed-by: Geert Uytterhoeven Applied to http://git.infradead.org/linux-mtd.git mtd/next, thanks. Boris