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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 869E0C6787E for ; Mon, 8 Oct 2018 03:37:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2A6D62087D for ; Mon, 8 Oct 2018 03:37:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2A6D62087D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=davemloft.net 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 S1726727AbeJHKrO (ORCPT ); Mon, 8 Oct 2018 06:47:14 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:47188 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726065AbeJHKrO (ORCPT ); Mon, 8 Oct 2018 06:47:14 -0400 Received: from localhost (unknown [IPv6:2601:601:9f00:1c06::4572]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id E95A914283695; Sun, 7 Oct 2018 20:37:39 -0700 (PDT) Date: Sun, 07 Oct 2018 20:37:39 -0700 (PDT) Message-Id: <20181007.203739.679737551060624652.davem@davemloft.net> To: gustavo@embeddedor.com Cc: michael.chan@broadcom.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next] bnxt_en: Remove unnecessary unsigned integer comparison and initialize variable From: David Miller In-Reply-To: <20181005201209.GA16515@embeddedor.com> References: <20181005201209.GA16515@embeddedor.com> X-Mailer: Mew version 6.7 on Emacs 26 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Sun, 07 Oct 2018 20:37:40 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Gustavo A. R. Silva" Date: Fri, 5 Oct 2018 22:12:09 +0200 > There is no need to compare *val.vu32* with < 0 because > such variable is of type u32 (32 bits, unsigned), making it > impossible to hold a negative value. Fix this by removing > such comparison. > > Also, initialize variable *max_val* to -1, just in case > it is not initialized to either BNXT_MSIX_VEC_MAX or > BNXT_MSIX_VEC_MIN_MAX before using it in a comparison > with val.vu32 at line 159: > > if (val.vu32 > max_val) > > Addresses-Coverity-ID: 1473915 ("Unsigned compared against 0") > Addresses-Coverity-ID: 1473920 ("Uninitialized scalar variable") > Signed-off-by: Gustavo A. R. Silva Applied.