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| author | Li RongQing <roy.qing.li@gmail.com> | 2013-03-14 22:50:18 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-15 09:12:25 -0400 |
| commit | 35353c2b42b97f5f62af5b5f7772d72334774d3a (patch) | |
| tree | 163ca16cdb0899ba9278a208460f4fd6a8c30067 | |
| parent | 1bcac3b08e2f13c31f798ac46897e33f08cfbd53 (diff) | |
| download | linux-35353c2b42b97f5f62af5b5f7772d72334774d3a.tar.gz linux-35353c2b42b97f5f62af5b5f7772d72334774d3a.tar.bz2 linux-35353c2b42b97f5f62af5b5f7772d72334774d3a.zip | |
ipv4: replace ip_fast_csum with csum_replace2
replace ip_fast_csum with csum_replace2 to save cpu cycles
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/inet_lro.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/net/ipv4/inet_lro.c b/net/ipv4/inet_lro.c index cc280a3f4f96..1975f52933c5 100644 --- a/net/ipv4/inet_lro.c +++ b/net/ipv4/inet_lro.c @@ -29,6 +29,7 @@ #include <linux/module.h> #include <linux/if_vlan.h> #include <linux/inet_lro.h> +#include <net/checksum.h> MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jan-Bernd Themann <themann@de.ibm.com>"); @@ -114,11 +115,9 @@ static void lro_update_tcp_ip_header(struct net_lro_desc *lro_desc) *(p+2) = lro_desc->tcp_rcv_tsecr; } + csum_replace2(&iph->check, iph->tot_len, htons(lro_desc->ip_tot_len)); iph->tot_len = htons(lro_desc->ip_tot_len); - iph->check = 0; - iph->check = ip_fast_csum((u8 *)lro_desc->iph, iph->ihl); - tcph->check = 0; tcp_hdr_csum = csum_partial(tcph, TCP_HDR_LEN(tcph), 0); lro_desc->data_csum = csum_add(lro_desc->data_csum, tcp_hdr_csum); |