commit e7e0e2ce65708a06e95e5822efaf10b34835e518
author David Marchand <david.marchand@redhat.com> Wed Sep 01 17:48:26 2021 +0200
committer Stephen Hemminger <stephen@networkplumber.org> Thu Sep 02 08:41:17 2021 -0700
tree 1d050bf6d41fb8793b88145a02b1be111fc303f1
parent deef844b1ef83292ba35ee618e40346139d2c608

iptuntap: fix multi-queue flag display

When creating a tap with multi_queue flag, this flag is not displayed
when dumping:

$ ip tuntap add tap23 mode tap multi_queue
$ ip tuntap
tap23: tap persist0x100

While at it, add a space between known flags and hexdump of unknown
ones.

Fixes: c41e038f48a3 ("iptuntap: allow creation of multi-queue tun/tap device")
Signed-off-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

ip/iptuntap.c

diff --git a/ip/iptuntap.c b/ip/iptuntap.c
index 9cdb4a8..96ca1ae 100644
--- a/ip/iptuntap.c
+++ b/ip/iptuntap.c
@@ -243,6 +243,9 @@
 	if (flags & IFF_ONE_QUEUE)
 		print_string(PRINT_ANY, NULL, " %s", "one_queue");
 
+	if (flags & IFF_MULTI_QUEUE)
+		print_string(PRINT_ANY, NULL, " %s", "multi_queue");
+
 	if (flags & IFF_VNET_HDR)
 		print_string(PRINT_ANY, NULL, " %s", "vnet_hdr");
 
@@ -253,9 +256,10 @@
 		print_string(PRINT_ANY, NULL, " %s", "filter");
 
 	flags &= ~(IFF_TUN | IFF_TAP | IFF_NO_PI | IFF_ONE_QUEUE |
-		   IFF_VNET_HDR | IFF_PERSIST | IFF_NOFILTER);
+		   IFF_MULTI_QUEUE | IFF_VNET_HDR | IFF_PERSIST |
+		   IFF_NOFILTER);
 	if (flags)
-		print_0xhex(PRINT_ANY, NULL, "%#llx", flags);
+		print_0xhex(PRINT_ANY, NULL, " %#llx", flags);
 
 	close_json_array(PRINT_JSON, NULL);
 }