smc_diag.h: fix include from userland

This patch prepares the uapi export by fixing the following error:

.../linux/smc_diag.h:6:27: fatal error: rdma/ib_verbs.h: No such file or directory
#include <rdma/ib_verbs.h>

Signed-off-by: Nicolas Dichtel <[e-mail]>
Signed-off-by: Masahiro Yamada <[e-mail]>

include/rdma/ib_verbs.h

···
 #include <linux/mmu_notifier.h>
 #include <linux/uaccess.h>
 #include <linux/cgroup_rdma.h>
+#include <uapi/rdma/ib_user_verbs.h>
 
 extern struct workqueue_struct *ib_wq;
 extern struct workqueue_struct *ib_comp_wq;
···
 	IB_MAD_RESULT_REPLY    = 1 << 1, /* Reply packet needs to be sent    */
 	IB_MAD_RESULT_CONSUMED = 1 << 2  /* Packet consumed: stop processing */
 };
-
-#define IB_DEVICE_NAME_MAX 64
 
 struct ib_port_cache {
 	struct ib_pkey_cache  *pkey;

include/uapi/linux/smc_diag.h

···
 
 #include <linux/types.h>
 #include <linux/inet_diag.h>
-#include <rdma/ib_verbs.h>
+#include <rdma/ib_user_verbs.h>
 
 /* Request structure */
 struct smc_diag_req {

include/uapi/rdma/ib_user_verbs.h

···
 	__u32 ind_tbl_handle;
 };
 
+#define IB_DEVICE_NAME_MAX 64
+
 #endif /* IB_USER_VERBS_H */