Comment out some pointless device open/close around reading device IDs.

FreeBSD ZFS port unlike OpenSolaris does not use device IDs, and does not
implement respective devid_*() fuctions.  It is pointless to open devices
just to close them back immediately.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.

cddl/contrib/opensolaris/cmd/zpool/zpool_vdev.c

@@ -512,6 +512,7 @@ make_leaf_vdev(const char *arg, uint64_t is_log)
 		verify(nvlist_add_uint64(vdev, ZPOOL_CONFIG_WHOLE_DISK,
 		    (uint64_t)wholedisk) == 0);
 
+#ifdef have_devid
 	/*
 	 * For a whole disk, defer getting its devid until after labeling it.
 	 */
@@ -546,6 +547,7 @@ make_leaf_vdev(const char *arg, uint64_t is_log)
 
 		(void) close(fd);
 	}
+#endif
 
 	return (vdev);
 }

cddl/contrib/opensolaris/lib/libzfs/common/libzfs_import.c

@@ -94,6 +94,7 @@ typedef struct pool_list {
 static char *
 get_devid(const char *path)
 {
+#ifdef have_devid
 	int fd;
 	ddi_devid_t devid;
 	char *minor, *ret;
@@ -113,6 +114,9 @@ get_devid(const char *path)
 	(void) close(fd);
 
 	return (ret);
+#else
+	return (NULL);
+#endif
 }
 
 

cddl/contrib/opensolaris/lib/libzfs/common/libzfs_pool.c

@@ -3324,6 +3324,7 @@ devid_to_path(char *devid_str)
 static char *
 path_to_devid(const char *path)
 {
+#ifdef have_devid
 	int fd;
 	ddi_devid_t devid;
 	char *minor, *ret;
@@ -3343,6 +3344,9 @@ path_to_devid(const char *path)
 	(void) close(fd);
 
 	return (ret);
+#else
+	return (NULL);
+#endif
 }
 
 /*