* [PATCH net-next] ipv4: replace ip_fast_csum with csum_replace2
@ 2013-03-15 8:50 roy.qing.li
2013-03-15 13:12 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: roy.qing.li @ 2013-03-15 8:50 UTC (permalink / raw)
To: netdev
From: Li RongQing <roy.qing.li@gmail.com>
replace ip_fast_csum with csum_replace2 to save cpu cycles
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
---
net/ipv4/inet_lro.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/net/ipv4/inet_lro.c b/net/ipv4/inet_lro.c
index cc280a3..1975f52 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);
--
1.7.10.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH net-next] ipv4: replace ip_fast_csum with csum_replace2
2013-03-15 8:50 [PATCH net-next] ipv4: replace ip_fast_csum with csum_replace2 roy.qing.li
@ 2013-03-15 13:12 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2013-03-15 13:12 UTC (permalink / raw)
To: roy.qing.li; +Cc: netdev
From: roy.qing.li@gmail.com
Date: Fri, 15 Mar 2013 16:50:18 +0800
> From: Li RongQing <roy.qing.li@gmail.com>
>
> replace ip_fast_csum with csum_replace2 to save cpu cycles
>
> Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Applied.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2013-03-15 13:12 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-03-15 8:50 [PATCH net-next] ipv4: replace ip_fast_csum with csum_replace2 roy.qing.li
2013-03-15 13:12 ` David Miller
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).