fix endianness bug in inet_lro

all uses of and almost all assignments to lro_desc->tcp_ack assume that it's
net-endian; one converts net-endian to host-endian and sticks it in
lro_desc->tcp_ack.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/inet_lro.h b/include/linux/inet_lro.h
index bb1c8773a1a1..1246d46abbc0 100644
--- a/include/linux/inet_lro.h
+++ b/include/linux/inet_lro.h
@@ -54,7 +54,7 @@ struct net_lro_desc {
         __wsum  data_csum;
         __be32 tcp_rcv_tsecr;
         __be32 tcp_rcv_tsval;
-        u32 tcp_ack;
+        __be32 tcp_ack;
         u32 tcp_next_seq;
         u32 skb_tot_frags_len;
         u16 ip_tot_len;
diff --git a/net/ipv4/inet_lro.c b/net/ipv4/inet_lro.c
index 7f22474b52c4..ac3b1d3dba2e 100644
--- a/net/ipv4/inet_lro.c
+++ b/net/ipv4/inet_lro.c
@@ -159,7 +159,7 @@ static void lro_init_desc(struct net_lro_desc *lro_desc, struct sk_buff *skb,
         lro_desc->iph = iph;
         lro_desc->tcph = tcph;
         lro_desc->tcp_next_seq = ntohl(tcph->seq) + tcp_data_len;
-        lro_desc->tcp_ack = ntohl(tcph->ack_seq);
+        lro_desc->tcp_ack = tcph->ack_seq;
         lro_desc->tcp_window = tcph->window;
 
         lro_desc->pkt_aggr_cnt = 1;