net: fix psock_fanout on sparc64

The packetsocket fanout test uses a packet ring. Use TPACKET_V2
instead of TPACKET_V1 to work around a known 32/64 bit issue in
the older ring that manifests on sparc64.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 1 deletions

diff --git a/tools/testing/selftests/net/psock_fanout.c b/tools/testing/selftests/net/psock_fanout.c
index 226e5e33105a..59bd6367af71 100644
--- a/tools/testing/selftests/net/psock_fanout.c
+++ b/tools/testing/selftests/net/psock_fanout.c
@@ -182,7 +182,13 @@ static char *sock_fanout_open_ring(int fd)
                 .tp_frame_nr   = RING_NUM_FRAMES,
         };
         char *ring;
+        int val = TPACKET_V2;
 
+        if (setsockopt(fd, SOL_PACKET, PACKET_VERSION, (void *) &val,
+                       sizeof(val))) {
+                perror("packetsock ring setsockopt version");
+                exit(1);
+        }
         if (setsockopt(fd, SOL_PACKET, PACKET_RX_RING, (void *) &req,
                        sizeof(req))) {
                 perror("packetsock ring setsockopt");
@@ -201,7 +207,7 @@ static char *sock_fanout_open_ring(int fd)
 
 static int sock_fanout_read_ring(int fd, void *ring)
 {
-        struct tpacket_hdr *header = ring;
+        struct tpacket2_hdr *header = ring;
         int count = 0;
 
         while (header->tp_status & TP_STATUS_USER && count < RING_NUM_FRAMES) {