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authorQuentin Monnet <quentin.monnet@netronome.com>2018-01-19 17:44:48 -0800
committerDavid S. Miller <davem@davemloft.net>2018-01-22 16:28:32 -0500
commitf9eda14f039294298643d034bc5c06340fe16cc0 (patch)
tree76a2b604bdd1ee09153df6c89896daab7ddb7739
parent8f0b425a712b82732127ff7880f92504f20fcc11 (diff)
downloadlinux-f9eda14f039294298643d034bc5c06340fe16cc0.tar.bz2
net: sched: create tc_can_offload_extack() wrapper
Create a wrapper around tc_can_offload() that takes an additional extack pointer argument in order to output an error message if TC offload is disabled on the device. In this way, the error message is handled by the core and can be the same for all drivers. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/pkt_cls.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index f497f622580b..2f8f16a4d88e 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -656,6 +656,17 @@ static inline bool tc_can_offload(const struct net_device *dev)
return dev->features & NETIF_F_HW_TC;
}
+static inline bool tc_can_offload_extack(const struct net_device *dev,
+ struct netlink_ext_ack *extack)
+{
+ bool can = tc_can_offload(dev);
+
+ if (!can)
+ NL_SET_ERR_MSG(extack, "TC offload is disabled on net device");
+
+ return can;
+}
+
static inline bool tc_skip_hw(u32 flags)
{
return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false;