From mboxrd@z Thu Jan 1 00:00:00 1970 From: roy.qing.li@gmail.com Subject: [PATCH net-next] net: neterion: replace ip_fast_csum with csum_replace2 Date: Mon, 18 Mar 2013 16:34:48 +0800 Message-ID: <1363595688-16004-1-git-send-email-roy.qing.li@gmail.com> To: netdev@vger.kernel.org Return-path: Received: from mail-qe0-f49.google.com ([209.85.128.49]:62951 "EHLO mail-qe0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751644Ab3CRIez (ORCPT ); Mon, 18 Mar 2013 04:34:55 -0400 Received: by mail-qe0-f49.google.com with SMTP id 1so3129357qec.22 for ; Mon, 18 Mar 2013 01:34:55 -0700 (PDT) Sender: netdev-owner@vger.kernel.org List-ID: From: Li RongQing replace ip_fast_csum with csum_replace2 to save cpu cycles Signed-off-by: Li RongQing --- drivers/net/ethernet/neterion/s2io.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c index bfd8873..3371ff4 100644 --- a/drivers/net/ethernet/neterion/s2io.c +++ b/drivers/net/ethernet/neterion/s2io.c @@ -80,6 +80,7 @@ #include #include #include +#include #include #include @@ -8337,16 +8338,13 @@ static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro) { struct iphdr *ip = lro->iph; struct tcphdr *tcp = lro->tcph; - __sum16 nchk; struct swStat *swstats = &sp->mac_control.stats_info->sw_stat; DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__); /* Update L3 header */ + csum_replace2(&ip->check, ip->tot_len, htons(lro->total_len)); ip->tot_len = htons(lro->total_len); - ip->check = 0; - nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl); - ip->check = nchk; /* Update L4 header */ tcp->ack_seq = lro->tcp_ack; -- 1.7.10.4