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>
diff --git a/include/linux/inet_lro.h b/include/linux/inet_lro.h
index bb1c877..1246d46 100644
--- a/include/linux/inet_lro.h
+++ b/include/linux/inet_lro.h
@@ -54,7 +54,7 @@
 	__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;