Merge tag 'nfs-rdma-for-4.14-1' of git://git.linux-nfs.org/projects/anna/linux-nfs into linux-next

NFS-over-RDMA client updates for Linux 4.14

Bugfixes and cleanups:
- Constify rpc_xprt_ops
- Harden RPC call encoding and decoding
- Clean up rpc call decoding to use xdr_streams
- Remove unused variables from various structures
- Refactor code to remove imul instructions
- Rearrange rx_stats structure for better cacheline sharing

net/sunrpc/xprtsock.c

@@ -2728,7 +2728,7 @@ static void bc_destroy(struct rpc_xprt *xprt)
 	module_put(THIS_MODULE);
 }
 
-static struct rpc_xprt_ops xs_local_ops = {
+static const struct rpc_xprt_ops xs_local_ops = {
 	.reserve_xprt		= xprt_reserve_xprt,
 	.release_xprt		= xs_tcp_release_xprt,
 	.alloc_slot		= xprt_alloc_slot,
@@ -2746,7 +2746,7 @@ static struct rpc_xprt_ops xs_local_ops = {
 	.disable_swap		= xs_disable_swap,
 };
 
-static struct rpc_xprt_ops xs_udp_ops = {
+static const struct rpc_xprt_ops xs_udp_ops = {
 	.set_buffer_size	= xs_udp_set_buffer_size,
 	.reserve_xprt		= xprt_reserve_xprt_cong,
 	.release_xprt		= xprt_release_xprt_cong,
@@ -2768,7 +2768,7 @@ static struct rpc_xprt_ops xs_udp_ops = {
 	.inject_disconnect	= xs_inject_disconnect,
 };
 
-static struct rpc_xprt_ops xs_tcp_ops = {
+static const struct rpc_xprt_ops xs_tcp_ops = {
 	.reserve_xprt		= xprt_reserve_xprt,
 	.release_xprt		= xs_tcp_release_xprt,
 	.alloc_slot		= xprt_lock_and_alloc_slot,
@@ -2799,7 +2799,7 @@ static struct rpc_xprt_ops xs_tcp_ops = {
  * The rpc_xprt_ops for the server backchannel
  */
 
-static struct rpc_xprt_ops bc_tcp_ops = {
+static const struct rpc_xprt_ops bc_tcp_ops = {
 	.reserve_xprt		= xprt_reserve_xprt,
 	.release_xprt		= xprt_release_xprt,
 	.alloc_slot		= xprt_alloc_slot,