RDMA: Make most headers compile stand alone

So that rdma can work with CONFIG_KERNEL_HEADER_TEST and
CONFIG_HEADERS_CHECK.

Link: https://lore.kernel.org/r/20190722170126.GA16453@ziepe.ca
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

include/Kbuild

@@ -945,12 +945,6 @@ header-test-			+= net/xdp.h
 header-test-			+= net/xdp_priv.h
 header-test-			+= pcmcia/cistpl.h
 header-test-			+= pcmcia/ds.h
-header-test-			+= rdma/ib.h
-header-test-			+= rdma/iw_portmap.h
-header-test-			+= rdma/opa_port_info.h
-header-test-			+= rdma/rdmavt_cq.h
-header-test-			+= rdma/restrack.h
-header-test-			+= rdma/signature.h
 header-test-			+= rdma/tid_rdma_defs.h
 header-test-			+= scsi/fc/fc_encaps.h
 header-test-			+= scsi/fc/fc_fc2.h

include/rdma/ib.h

@@ -36,6 +36,8 @@
 #include <linux/types.h>
 #include <linux/sched.h>
 #include <linux/cred.h>
+#include <linux/uaccess.h>
+#include <linux/fs.h>
 
 struct ib_addr {
 	union {

include/rdma/iw_portmap.h

@@ -33,6 +33,9 @@
 #ifndef _IW_PORTMAP_H
 #define _IW_PORTMAP_H
 
+#include <linux/socket.h>
+#include <linux/netlink.h>
+
 #define IWPM_ULIBNAME_SIZE	32
 #define IWPM_DEVNAME_SIZE	32
 #define IWPM_IFNAME_SIZE	16

include/rdma/opa_port_info.h

@@ -33,6 +33,8 @@
 #if !defined(OPA_PORT_INFO_H)
 #define OPA_PORT_INFO_H
 
+#include <rdma/opa_smi.h>
+
 #define OPA_PORT_LINK_MODE_NOP	0		/* No change */
 #define OPA_PORT_LINK_MODE_OPA	4		/* Port mode is OPA */
 

include/rdma/rdmavt_cq.h

@@ -53,6 +53,7 @@
 
 #include <linux/kthread.h>
 #include <rdma/ib_user_verbs.h>
+#include <rdma/ib_verbs.h>
 
 /*
  * Define an ib_cq_notify value that is not valid so we know when CQ

include/rdma/signature.h

@@ -6,6 +6,8 @@
 #ifndef _RDMA_SIGNATURE_H_
 #define _RDMA_SIGNATURE_H_
 
+#include <linux/types.h>
+
 enum ib_signature_prot_cap {
 	IB_PROT_T10DIF_TYPE_1 = 1,
 	IB_PROT_T10DIF_TYPE_2 = 1 << 1,