For IPV4 packets sent on the wire the rxe driver calls ip_local_out()
which immediately calls __ip_local_out() which sets iph->tot_len and
calls ip_send_check(). This code is duplicated in prepare4(). On the
loopback path the IP header checksum and tot_len fields are not used so
they do not need to be set.
Remove this redundant code.
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Signed-of-by: Bob Pearson <rpearsonhpe@xxxxxxxxx>
---
drivers/infiniband/sw/rxe/rxe_net.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c
index 01662727dca0..178a66a45312 100644
--- a/drivers/infiniband/sw/rxe/rxe_net.c
+++ b/drivers/infiniband/sw/rxe/rxe_net.c
@@ -269,8 +269,6 @@ static void prepare_ipv4_hdr(struct dst_entry *dst, struct sk_buff *skb,
iph->ttl = ttl;
__ip_select_ident(dev_net(dst->dev), iph,
skb_shinfo(skb)->gso_segs ?: 1);
- iph->tot_len = htons(skb->len);
- ip_send_check(iph);
}
static void prepare_ipv6_hdr(struct dst_entry *dst, struct sk_buff *skb,
--
2.30.2
