[PATCH net-next 02/11] bridge: add bridge_flags_bit enum

[Eric Dumazet <edumazet@google.com>]

We want to use atomic operations for lockless p->flags changes
and reads.

Add definitions for bits in addition of masks so that we can use
test_bit(), clear_bit() and set_bit() in subsequent patches.

Signed-off-by: Eric Dumazet <edumazet@google.com>
---
 include/linux/if_bridge.h | 78 ++++++++++++++++++++++++++-------------
 1 file changed, 53 insertions(+), 25 deletions(-)

diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index ec9ffea1e46ede3762f108f6e7085ebb1bf1d2e1..75673b8bffcb8ad6396e6a05b8af8150208fb6fe 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -36,32 +36,60 @@ struct br_ip_list {
 	struct br_ip addr;
 };
 
-#define BR_HAIRPIN_MODE		BIT(0)
-#define BR_BPDU_GUARD		BIT(1)
-#define BR_ROOT_BLOCK		BIT(2)
-#define BR_MULTICAST_FAST_LEAVE	BIT(3)
-#define BR_ADMIN_COST		BIT(4)
-#define BR_LEARNING		BIT(5)
-#define BR_FLOOD		BIT(6)
+enum bridge_flags_bit {
+	BR_HAIRPIN_MODE_BIT,
+	BR_BPDU_GUARD_BIT,
+	BR_ROOT_BLOCK_BIT,
+	BR_MULTICAST_FAST_LEAVE_BIT,
+	BR_ADMIN_COST_BIT,
+	BR_LEARNING_BIT,
+	BR_FLOOD_BIT,
+	BR_PROMISC_BIT,
+	BR_PROXYARP_BIT,
+	BR_LEARNING_SYNC_BIT,
+	BR_PROXYARP_WIFI_BIT,
+	BR_MCAST_FLOOD_BIT,
+	BR_MULTICAST_TO_UNICAST_BIT,
+	BR_VLAN_TUNNEL_BIT,
+	BR_BCAST_FLOOD_BIT,
+	BR_NEIGH_SUPPRESS_BIT,
+	BR_ISOLATED_BIT,
+	BR_MRP_AWARE_BIT,
+	BR_MRP_LOST_CONT_BIT,
+	BR_MRP_LOST_IN_CONT_BIT,
+	BR_TX_FWD_OFFLOAD_BIT,
+	BR_PORT_LOCKED_BIT,
+	BR_PORT_MAB_BIT,
+	BR_NEIGH_VLAN_SUPPRESS_BIT,
+	BR_NEIGH_FORWARD_GRAT_BIT,
+};
+
+#define BR_HAIRPIN_MODE		BIT(BR_HAIRPIN_MODE_BIT)
+#define BR_BPDU_GUARD		BIT(BR_BPDU_GUARD_BIT)
+#define BR_ROOT_BLOCK		BIT(BR_ROOT_BLOCK_BIT)
+#define BR_MULTICAST_FAST_LEAVE	BIT(BR_MULTICAST_FAST_LEAVE_BIT)
+#define BR_ADMIN_COST		BIT(BR_ADMIN_COST_BIT)
+#define BR_LEARNING		BIT(BR_LEARNING_BIT)
+#define BR_FLOOD		BIT(BR_FLOOD_BIT)
 #define BR_AUTO_MASK		(BR_FLOOD | BR_LEARNING)
-#define BR_PROMISC		BIT(7)
-#define BR_PROXYARP		BIT(8)
-#define BR_LEARNING_SYNC	BIT(9)
-#define BR_PROXYARP_WIFI	BIT(10)
-#define BR_MCAST_FLOOD		BIT(11)
-#define BR_MULTICAST_TO_UNICAST	BIT(12)
-#define BR_VLAN_TUNNEL		BIT(13)
-#define BR_BCAST_FLOOD		BIT(14)
-#define BR_NEIGH_SUPPRESS	BIT(15)
-#define BR_ISOLATED		BIT(16)
-#define BR_MRP_AWARE		BIT(17)
-#define BR_MRP_LOST_CONT	BIT(18)
-#define BR_MRP_LOST_IN_CONT	BIT(19)
-#define BR_TX_FWD_OFFLOAD	BIT(20)
-#define BR_PORT_LOCKED		BIT(21)
-#define BR_PORT_MAB		BIT(22)
-#define BR_NEIGH_VLAN_SUPPRESS	BIT(23)
-#define BR_NEIGH_FORWARD_GRAT	BIT(24)
+#define BR_PROMISC		BIT(BR_PROMISC_BIT)
+#define BR_PROXYARP		BIT(BR_PROXYARP_BIT)
+#define BR_LEARNING_SYNC	BIT(BR_LEARNING_SYNC_BIT)
+#define BR_PROXYARP_WIFI	BIT(BR_PROXYARP_WIFI_BIT)
+#define BR_MCAST_FLOOD		BIT(BR_MCAST_FLOOD_BIT)
+#define BR_MULTICAST_TO_UNICAST	BIT(BR_MULTICAST_TO_UNICAST_BIT)
+#define BR_VLAN_TUNNEL		BIT(BR_VLAN_TUNNEL_BIT)
+#define BR_BCAST_FLOOD		BIT(BR_BCAST_FLOOD_BIT)
+#define BR_NEIGH_SUPPRESS	BIT(BR_NEIGH_SUPPRESS_BIT)
+#define BR_ISOLATED		BIT(BR_ISOLATED_BIT)
+#define BR_MRP_AWARE		BIT(BR_MRP_AWARE_BIT)
+#define BR_MRP_LOST_CONT	BIT(BR_MRP_LOST_CONT_BIT)
+#define BR_MRP_LOST_IN_CONT	BIT(BR_MRP_LOST_IN_CONT_BIT)
+#define BR_TX_FWD_OFFLOAD	BIT(BR_TX_FWD_OFFLOAD_BIT)
+#define BR_PORT_LOCKED		BIT(BR_PORT_LOCKED_BIT)
+#define BR_PORT_MAB		BIT(BR_PORT_MAB_BIT)
+#define BR_NEIGH_VLAN_SUPPRESS	BIT(BR_NEIGH_VLAN_SUPPRESS_BIT)
+#define BR_NEIGH_FORWARD_GRAT	BIT(BR_NEIGH_FORWARD_GRAT_BIT)
 
 #define BR_DEFAULT_AGEING_TIME	(300 * HZ)
 
-- 
2.54.0.669.g59709faab0-goog