From: Willem de Bruijn <willemb@google.com>
Date: Thu, 21 Mar 2013 18:10:03 +0000 (-0400)
Subject: net: fix psock_fanout on sparc64
X-Git-Tag: v3.10-rc1~66^2~386
X-Git-Url: http://git.cascardo.info/?p=cascardo%2Flinux.git;a=commitdiff_plain;h=98e821a2a927b6dc0f7adc4b64ad29bec1b6ff89

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>
---

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) {