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* [PATCH net] geneve: only configure or fill UDP_ZERO_CSUM6_RX/TX info when CONFIG_IPV6
@ 2017-11-23  3:27 Hangbin Liu
  2017-11-23 12:35 ` Stefano Brivio
  2017-11-23 18:30 ` David Miller
  0 siblings, 2 replies; 4+ messages in thread
From: Hangbin Liu @ 2017-11-23  3:27 UTC (permalink / raw)
  To: netdev
  Cc: Stefano Brivio, Eric Garver, Pravin B Shelar, David S. Miller,
	Hangbin Liu

Stefano pointed that configure or show UDP_ZERO_CSUM6_RX/TX info doesn't
make sense if we haven't enabled CONFIG_IPV6. Fix it by adding
if IS_ENABLED(CONFIG_IPV6) check.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
 drivers/net/geneve.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 4e16d83..b718a02 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -1337,21 +1337,33 @@ static int geneve_nl2info(struct nlattr *tb[], struct nlattr *data[],
 	}
 
 	if (data[IFLA_GENEVE_UDP_ZERO_CSUM6_TX]) {
+#if IS_ENABLED(CONFIG_IPV6)
 		if (changelink) {
 			attrtype = IFLA_GENEVE_UDP_ZERO_CSUM6_TX;
 			goto change_notsup;
 		}
 		if (nla_get_u8(data[IFLA_GENEVE_UDP_ZERO_CSUM6_TX]))
 			info->key.tun_flags &= ~TUNNEL_CSUM;
+#else
+		NL_SET_ERR_MSG_ATTR(extack, data[IFLA_GENEVE_UDP_ZERO_CSUM6_TX],
+				    "IPv6 support not enabled in the kernel");
+		return -EPFNOSUPPORT;
+#endif
 	}
 
 	if (data[IFLA_GENEVE_UDP_ZERO_CSUM6_RX]) {
+#if IS_ENABLED(CONFIG_IPV6)
 		if (changelink) {
 			attrtype = IFLA_GENEVE_UDP_ZERO_CSUM6_RX;
 			goto change_notsup;
 		}
 		if (nla_get_u8(data[IFLA_GENEVE_UDP_ZERO_CSUM6_RX]))
 			*use_udp6_rx_checksums = false;
+#else
+		NL_SET_ERR_MSG_ATTR(extack, data[IFLA_GENEVE_UDP_ZERO_CSUM6_RX],
+				    "IPv6 support not enabled in the kernel");
+		return -EPFNOSUPPORT;
+#endif
 	}
 
 	return 0;
@@ -1527,11 +1539,13 @@ static int geneve_fill_info(struct sk_buff *skb, const struct net_device *dev)
 		goto nla_put_failure;
 
 	if (metadata && nla_put_flag(skb, IFLA_GENEVE_COLLECT_METADATA))
-			goto nla_put_failure;
+		goto nla_put_failure;
 
+#if IS_ENABLED(CONFIG_IPV6)
 	if (nla_put_u8(skb, IFLA_GENEVE_UDP_ZERO_CSUM6_RX,
 		       !geneve->use_udp6_rx_checksums))
 		goto nla_put_failure;
+#endif
 
 	return 0;
 
-- 
2.5.5

^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2017-11-23 18:30 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-11-23  3:27 [PATCH net] geneve: only configure or fill UDP_ZERO_CSUM6_RX/TX info when CONFIG_IPV6 Hangbin Liu
2017-11-23 12:35 ` Stefano Brivio
2017-11-23 13:01   ` Hangbin Liu
2017-11-23 18:30 ` David Miller

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