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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 2A1DBC3A5A1 for ; Wed, 28 Aug 2019 14:04:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 085BD22CED for ; Wed, 28 Aug 2019 14:04:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727344AbfH1OEN (ORCPT ); Wed, 28 Aug 2019 10:04:13 -0400 Received: from mx2.suse.de ([195.135.220.15]:39766 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726844AbfH1ODd (ORCPT ); Wed, 28 Aug 2019 10:03:33 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 8D352B653; Wed, 28 Aug 2019 14:03:32 +0000 (UTC) From: Thomas Bogendoerfer To: Ralf Baechle , Paul Burton , James Hogan , "David S. Miller" , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH net-next 12/15] net: sgi: ioc3-eth: use csum_fold Date: Wed, 28 Aug 2019 16:03:11 +0200 Message-Id: <20190828140315.17048-13-tbogendoerfer@suse.de> X-Mailer: git-send-email 2.13.7 In-Reply-To: <20190828140315.17048-1-tbogendoerfer@suse.de> References: <20190828140315.17048-1-tbogendoerfer@suse.de> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org replace open coded checksum folding by csum_fold. Signed-off-by: Thomas Bogendoerfer --- drivers/net/ethernet/sgi/ioc3-eth.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c index aea3fecfac24..82a298eea8d4 100644 --- a/drivers/net/ethernet/sgi/ioc3-eth.c +++ b/drivers/net/ethernet/sgi/ioc3-eth.c @@ -1393,16 +1393,12 @@ static netdev_tx_t ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) /* Sum up dest addr, src addr and protocol */ ehsum = eh[0] + eh[1] + eh[2] + eh[3] + eh[4] + eh[5] + eh[6]; - /* Fold ehsum. can't use csum_fold which negates also ... */ - ehsum = (ehsum & 0xffff) + (ehsum >> 16); - ehsum = (ehsum & 0xffff) + (ehsum >> 16); - /* Skip IP header; it's sum is always zero and was * already filled in by ip_output.c */ csum = csum_tcpudp_nofold(ih->saddr, ih->daddr, ih->tot_len - (ih->ihl << 2), - proto, 0xffff ^ ehsum); + proto, csum_fold(ehsum)); csum = (csum & 0xffff) + (csum >> 16); /* Fold again */ csum = (csum & 0xffff) + (csum >> 16); -- 2.13.7