staging/lustre/lnet: Get rid of IOC_LIBCFS_PORTALS_COMPATIBILITY ioctl

This has been unused for ages and could be safely removed now.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h

@@ -118,7 +118,7 @@ struct libcfs_ioctl_handler {
 #define IOC_LIBCFS_GET_ROUTE	       _IOWR('e', 54, long)
 #define IOC_LIBCFS_NOTIFY_ROUTER	   _IOWR('e', 55, long)
 #define IOC_LIBCFS_UNCONFIGURE	     _IOWR('e', 56, long)
-#define IOC_LIBCFS_PORTALS_COMPATIBILITY   _IOWR('e', 57, long)
+/*	#define IOC_LIBCFS_PORTALS_COMPATIBILITY   _IOWR('e', 57, long) */
 #define IOC_LIBCFS_LNET_DIST	       _IOWR('e', 58, long)
 #define IOC_LIBCFS_CONFIGURE	       _IOWR('e', 59, long)
 #define IOC_LIBCFS_TESTPROTOCOMPAT	 _IOWR('e', 60, long)

drivers/staging/lustre/lnet/lnet/api-ni.c

@@ -1318,8 +1318,6 @@ EXPORT_SYMBOL(LNetNIFini);
 /**
  * LNet ioctl handler.
  *
- * IOC_LIBCFS_PORTALS_COMPATIBILITY is now deprecated, don't use it.
- *
  */
 int
 LNetCtl(unsigned int cmd, void *arg)
@@ -1360,10 +1358,6 @@ LNetCtl(unsigned int cmd, void *arg)
 		return lnet_notify(NULL, data->ioc_nid, data->ioc_flags,
 				   jiffies - secs_passed * HZ);
 
-	case IOC_LIBCFS_PORTALS_COMPATIBILITY:
-		/* This can be removed once lustre stops calling it */
-		return 0;
-
 	case IOC_LIBCFS_LNET_DIST:
 		rc = LNetDist(data->ioc_nid, &data->ioc_nid, &data->ioc_u32[1]);
 		if (rc < 0 && rc != -EHOSTUNREACH)

drivers/staging/lustre/lustre/ptlrpc/events.c

@@ -438,14 +438,11 @@ int ptlrpc_uuid_to_peer(struct obd_uuid *uuid,
 	__u32 best_order = 0;
 	int count = 0;
 	int rc = -ENOENT;
-	int portals_compatibility;
 	int dist;
 	__u32 order;
 	lnet_nid_t dst_nid;
 	lnet_nid_t src_nid;
 
-	portals_compatibility = LNetCtl(IOC_LIBCFS_PORTALS_COMPATIBILITY, NULL);
-
 	peer->pid = LUSTRE_SRV_LNET_PID;
 
 	/* Choose the matching UUID that's closest */
@@ -466,14 +463,6 @@ int ptlrpc_uuid_to_peer(struct obd_uuid *uuid,
 			best_dist = dist;
 			best_order = order;
 
-			if (portals_compatibility > 1) {
-				/* Strong portals compatibility: Zero the nid's
-				 * NET, so if I'm reading new config logs, or
-				 * getting configured by (new) lconf I can
-				 * still talk to old servers. */
-				dst_nid = LNET_MKNID(0, LNET_NIDADDR(dst_nid));
-				src_nid = LNET_MKNID(0, LNET_NIDADDR(src_nid));
-			}
 			peer->nid = dst_nid;
 			*self = src_nid;
 			rc = 0;