driver/qlogic: 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>
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
index 0e63006..891f12d 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
@@ -9,6 +9,7 @@
#include <linux/if_vlan.h>
#include <net/ip.h>
#include <linux/ipv6.h>
+#include <net/checksum.h>
#include "qlcnic.h"
@@ -1132,9 +1133,8 @@
iph = (struct iphdr *)skb->data;
th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
+ csum_replace2(&iph->check, iph->tot_len, htons(length));
iph->tot_len = htons(length);
- iph->check = 0;
- iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
}
th->psh = push;
@@ -1595,9 +1595,8 @@
iph = (struct iphdr *)skb->data;
th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
+ csum_replace2(&iph->check, iph->tot_len, htons(length));
iph->tot_len = htons(length);
- iph->check = 0;
- iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
}
th->psh = push;