net: Fix various endianness glitches

Sparse can help us find endianness bugs, but we need to make some
cleanups to be able to more easily spot real bugs.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/bridge/br_multicast.c
Simple merge

diff --cc net/bridge/br_private.h
Simple merge

diff --cc net/ethernet/eth.c
Simple merge

diff --cc net/ipv4/af_inet.c
Simple merge

diff --cc net/ipv4/ipmr.c
Simple merge

diff --cc net/ipv4/route.c
Simple merge

diff --cc net/ipv4/tcp.c
Simple merge

diff --cc net/ipv4/tcp_ipv4.c
Simple merge

diff --cc net/ipv4/tcp_output.c
Simple merge

diff --cc net/ipv4/udp.c
Simple merge

diff --cc net/ipv6/addrconf.c
Simple merge

diff --cc net/ipv6/ip6_fib.c
Simple merge

diff --cc net/ipv6/tcp_ipv6.c
Simple merge

diff --cc net/ipv6/udp.c
Simple merge

diff --cc net/sched/sch_sfq.c
Simple merge

diff --cc net/sunrpc/xprt.c
Simple merge

diff --cc net/xfrm/xfrm_hash.h
Simple merge