Merge branch 'get-rid-of-the-switchdev-transactional-model'

Vladimir Oltean says:

====================
Get rid of the switchdev transactional model

Changes in v4:
- Fixed build error in dsa_loop and build warning in hellcreek driver.
- Scheduling the mlxsw SPAN work item regardless of the VLAN add return
  code, as per Ido's and Petr's request.

Changes in v3:
- Resolved a build warning in mv88e6xxx and tested that it actually
  works properly, which resulted in an extra patch (02/11).
- Addressed Ido's minor feedback in commit 10/11 relating to a comment.

Changes in v2:
- Got rid of the vid_begin -> vid_end range too from the switchdev API.
- Actually propagating errors from DSA MDB and VLAN notifiers.

This series comes after the late realization that the prepare/commit
separation imposed by switchdev does not help literally anybody:
https://patchwork.kernel.org/project/netdevbpf/patch/20201212203901.351331-1-vladimir.oltean@nxp.com/

We should kill it before it inflicts even more damage to the error
handling logic in drivers.

Also remove the unused VLAN ranges feature from the switchdev VLAN
objects, which simplifies all drivers by quite a bit.
====================

Link: https://lore.kernel.org/r/20210109000156.1246735-1-olteanv@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 8 insertions, 19 deletions

diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 3822520eeeae..89143cc049db 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -29,7 +29,6 @@ enum {
 
 /* DSA_NOTIFIER_AGEING_TIME */
 struct dsa_notifier_ageing_time_info {
-	struct switchdev_trans *trans;
 	unsigned int ageing_time;
 };
 
@@ -52,7 +51,6 @@ struct dsa_notifier_fdb_info {
 /* DSA_NOTIFIER_MDB_* */
 struct dsa_notifier_mdb_info {
 	const struct switchdev_obj_port_mdb *mdb;
-	struct switchdev_trans *trans;
 	int sw_index;
 	int port;
 };
@@ -60,7 +58,6 @@ struct dsa_notifier_mdb_info {
 /* DSA_NOTIFIER_VLAN_* */
 struct dsa_notifier_vlan_info {
 	const struct switchdev_obj_port_vlan *vlan;
-	struct switchdev_trans *trans;
 	int sw_index;
 	int port;
 };
@@ -130,19 +127,16 @@ static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
 }
 
 /* port.c */
-int dsa_port_set_state(struct dsa_port *dp, u8 state,
-		       struct switchdev_trans *trans);
+int dsa_port_set_state(struct dsa_port *dp, u8 state);
 int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy);
 int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
 void dsa_port_disable_rt(struct dsa_port *dp);
 void dsa_port_disable(struct dsa_port *dp);
 int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br);
 void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br);
-int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
-			    struct switchdev_trans *trans);
+int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering);
 bool dsa_port_skip_vlan_configuration(struct dsa_port *dp);
-int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
-			 struct switchdev_trans *trans);
+int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock);
 int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu,
 			bool propagate_upstream);
 int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
@@ -151,19 +145,14 @@ int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
 		     u16 vid);
 int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
 int dsa_port_mdb_add(const struct dsa_port *dp,
-		     const struct switchdev_obj_port_mdb *mdb,
-		     struct switchdev_trans *trans);
+		     const struct switchdev_obj_port_mdb *mdb);
 int dsa_port_mdb_del(const struct dsa_port *dp,
 		     const struct switchdev_obj_port_mdb *mdb);
-int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags,
-			      struct switchdev_trans *trans);
-int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags,
-			  struct switchdev_trans *trans);
-int dsa_port_mrouter(struct dsa_port *dp, bool mrouter,
-		     struct switchdev_trans *trans);
+int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags);
+int dsa_port_bridge_flags(const struct dsa_port *dp, unsigned long flags);
+int dsa_port_mrouter(struct dsa_port *dp, bool mrouter);
 int dsa_port_vlan_add(struct dsa_port *dp,
-		      const struct switchdev_obj_port_vlan *vlan,
-		      struct switchdev_trans *trans);
+		      const struct switchdev_obj_port_vlan *vlan);
 int dsa_port_vlan_del(struct dsa_port *dp,
 		      const struct switchdev_obj_port_vlan *vlan);
 int dsa_port_link_register_of(struct dsa_port *dp);