netdev - [PATCH net-next v3 06/13] net: dsa: Add support for querying supported bridge flags

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Message-Id: <1502025351-41261-7-git-send-email-arkadis@mellanox.com>
Date:   Sun,  6 Aug 2017 16:15:44 +0300
From:   Arkadi Sharshevsky <arkadis@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jiri@...nulli.us, ivecera@...hat.com,
        f.fainelli@...il.com, andrew@...n.ch,
        vivien.didelot@...oirfairelinux.com, Woojung.Huh@...rochip.com,
        mlxsw@...lanox.com, Arkadi Sharshevsky <arkadis@...lanox.com>
Subject: [PATCH net-next v3 06/13] net: dsa: Add support for querying supported bridge flags

The DSA drivers do not support bridge flags offload. Yet, this attribute
should be added in order for the bridge to fail when one tries set a
flag on the port, as explained in commit dc0ecabd6231 ("net: switchdev:
Add support for querying supported bridge flags by hardware").

Signed-off-by: Arkadi Sharshevsky <arkadis@...lanox.com>
Reviewed-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
---
 net/dsa/slave.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 2cf1c94..9205fda 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -324,6 +324,9 @@ static int dsa_slave_port_attr_get(struct net_device *dev,
 		attr->u.ppid.id_len = sizeof(ds->index);
 		memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len);
 		break;
+	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT:
+		attr->u.brport_flags_support = 0;
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}
-- 
2.4.11