rocker: remove trans parameter to rocker_cmd_exec function

The only purpose of passing this parameter is to check for
prepare phase. The only reason for a failure in that state is if
TLVs don't fit into descriptor. That is highly unlikely and if that
happens, it is a driver bug. So remove this parameter from
rocker_cmd_exec, and check for prepare phase in caller.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c
index 8585d98..8113b15 100644 (file)
--- a/drivers/net/ethernet/rocker/rocker_main.c
+++ b/drivers/net/ethernet/rocker/rocker_main.c
@@ -1337,8 +1337,7 @@ typedef int (*rocker_cmd_proc_cb_t)(const struct rocker_port *rocker_port,
                                    const struct rocker_desc_info *desc_info,
                                    void *priv);
 
-static int rocker_cmd_exec(struct rocker_port *rocker_port,
-                          struct switchdev_trans *trans, int flags,
+static int rocker_cmd_exec(struct rocker_port *rocker_port, int flags,
                           rocker_cmd_prep_cb_t prepare, void *prepare_priv,
                           rocker_cmd_proc_cb_t process, void *process_priv)
 {
@@ -1367,17 +1366,15 @@ static int rocker_cmd_exec(struct rocker_port *rocker_port,
                return err;
        }
 
-       if (!switchdev_trans_ph_prepare(trans))
-               rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info);
+       rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info);
 
        spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags);
 
        if (nowait)
                return 0;
 
-       if (!switchdev_trans_ph_prepare(trans))
-               if (!rocker_wait_event_timeout(wait, HZ / 10))
-                       return -EIO;
+       if (!rocker_wait_event_timeout(wait, HZ / 10))
+               return -EIO;
 
        err = rocker_desc_err(desc_info);
        if (err)
@@ -1650,7 +1647,7 @@ rocker_cmd_set_port_learning_prep(const struct rocker_port *rocker_port,
 static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port,
                                                struct ethtool_cmd *ecmd)
 {
-       return rocker_cmd_exec(rocker_port, NULL, 0,
+       return rocker_cmd_exec(rocker_port, 0,
                               rocker_cmd_get_port_settings_prep, NULL,
                               rocker_cmd_get_port_settings_ethtool_proc,
                               ecmd);
@@ -1659,7 +1656,7 @@ static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port,
 static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port,
                                                unsigned char *macaddr)
 {
-       return rocker_cmd_exec(rocker_port, NULL, 0,
+       return rocker_cmd_exec(rocker_port, 0,
                               rocker_cmd_get_port_settings_prep, NULL,
                               rocker_cmd_get_port_settings_macaddr_proc,
                               macaddr);
@@ -1668,7 +1665,7 @@ static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port,
 static int rocker_cmd_get_port_settings_mode(struct rocker_port *rocker_port,
                                             u8 *p_mode)
 {
-       return rocker_cmd_exec(rocker_port, NULL, 0,
+       return rocker_cmd_exec(rocker_port, 0,
                               rocker_cmd_get_port_settings_prep, NULL,
                               rocker_cmd_get_port_settings_mode_proc, p_mode);
 }
@@ -1676,7 +1673,7 @@ static int rocker_cmd_get_port_settings_mode(struct rocker_port *rocker_port,
 static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port,
                                                struct ethtool_cmd *ecmd)
 {
-       return rocker_cmd_exec(rocker_port, NULL, 0,
+       return rocker_cmd_exec(rocker_port, 0,
                               rocker_cmd_set_port_settings_ethtool_prep,
                               ecmd, NULL, NULL);
 }
@@ -1684,7 +1681,7 @@ static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port,
 static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port,
                                                unsigned char *macaddr)
 {
-       return rocker_cmd_exec(rocker_port, NULL, 0,
+       return rocker_cmd_exec(rocker_port, 0,
                               rocker_cmd_set_port_settings_macaddr_prep,
                               macaddr, NULL, NULL);
 }
@@ -1692,16 +1689,15 @@ static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port,
 static int rocker_cmd_set_port_settings_mtu(struct rocker_port *rocker_port,
                                            int mtu)
 {
-       return rocker_cmd_exec(rocker_port, NULL, 0,
+       return rocker_cmd_exec(rocker_port, 0,
                               rocker_cmd_set_port_settings_mtu_prep,
                               &mtu, NULL, NULL);
 }
 
 static int rocker_port_set_learning(struct rocker_port *rocker_port,
-                                   struct switchdev_trans *trans,
                                    bool learning)
 {
-       return rocker_cmd_exec(rocker_port, trans, 0,
+       return rocker_cmd_exec(rocker_port, 0,
                               rocker_cmd_set_port_learning_prep,
                               &learning, NULL, NULL);
 }
@@ -2578,8 +2574,11 @@ static int rocker_flow_tbl_add(struct rocker_port *rocker_port,
 
        spin_unlock_irqrestore(&rocker->flow_tbl_lock, lock_flags);
 
-       return rocker_cmd_exec(rocker_port, trans, flags,
-                              rocker_cmd_flow_tbl_add, found, NULL, NULL);
+       if (!switchdev_trans_ph_prepare(trans))
+               return rocker_cmd_exec(rocker_port, flags,
+                                      rocker_cmd_flow_tbl_add,
+                                      found, NULL, NULL);
+       return 0;
 }
 
 static int rocker_flow_tbl_del(struct rocker_port *rocker_port,
@@ -2609,9 +2608,10 @@ static int rocker_flow_tbl_del(struct rocker_port *rocker_port,
        rocker_kfree(trans, match);
 
        if (found) {
-               err = rocker_cmd_exec(rocker_port, trans, flags,
-                                     rocker_cmd_flow_tbl_del,
-                                     found, NULL, NULL);
+               if (!switchdev_trans_ph_prepare(trans))
+                       err = rocker_cmd_exec(rocker_port, flags,
+                                             rocker_cmd_flow_tbl_del,
+                                             found, NULL, NULL);
                rocker_kfree(trans, found);
        }
 
@@ -2899,8 +2899,11 @@ static int rocker_group_tbl_add(struct rocker_port *rocker_port,
 
        spin_unlock_irqrestore(&rocker->group_tbl_lock, lock_flags);
 
-       return rocker_cmd_exec(rocker_port, trans, flags,
-                              rocker_cmd_group_tbl_add, found, NULL, NULL);
+       if (!switchdev_trans_ph_prepare(trans))
+               return rocker_cmd_exec(rocker_port, flags,
+                                      rocker_cmd_group_tbl_add,
+                                      found, NULL, NULL);
+       return 0;
 }
 
 static int rocker_group_tbl_del(struct rocker_port *rocker_port,
@@ -2927,9 +2930,10 @@ static int rocker_group_tbl_del(struct rocker_port *rocker_port,
        rocker_group_tbl_entry_free(trans, match);
 
        if (found) {
-               err = rocker_cmd_exec(rocker_port, trans, flags,
-                                     rocker_cmd_group_tbl_del,
-                                     found, NULL, NULL);
+               if (!switchdev_trans_ph_prepare(trans))
+                       err = rocker_cmd_exec(rocker_port, flags,
+                                             rocker_cmd_group_tbl_del,
+                                             found, NULL, NULL);
                rocker_group_tbl_entry_free(trans, found);
        }
 
@@ -4405,7 +4409,7 @@ static int rocker_port_get_phys_port_name(struct net_device *dev,
        struct port_name name = { .buf = buf, .len = len };
        int err;
 
-       err = rocker_cmd_exec(rocker_port, NULL, 0,
+       err = rocker_cmd_exec(rocker_port, 0,
                              rocker_cmd_get_port_settings_prep, NULL,
                              rocker_cmd_get_port_settings_phys_name_proc,
                              &name);
@@ -4493,8 +4497,9 @@ static int rocker_port_brport_flags_set(struct rocker_port *rocker_port,
 
        orig_flags = rocker_port->brport_flags;
        rocker_port->brport_flags = brport_flags;
-       if ((orig_flags ^ rocker_port->brport_flags) & BR_LEARNING)
-               err = rocker_port_set_learning(rocker_port, trans,
+       if ((orig_flags ^ rocker_port->brport_flags) & BR_LEARNING &&
+           !switchdev_trans_ph_prepare(trans))
+               err = rocker_port_set_learning(rocker_port,
                                               !!(rocker_port->brport_flags & BR_LEARNING));
 
        if (switchdev_trans_ph_prepare(trans))
@@ -4957,7 +4962,7 @@ rocker_cmd_get_port_stats_ethtool_proc(const struct rocker_port *rocker_port,
 static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port,
                                             void *priv)
 {
-       return rocker_cmd_exec(rocker_port, NULL, 0,
+       return rocker_cmd_exec(rocker_port, 0,
                               rocker_cmd_get_port_stats_prep, NULL,
                               rocker_cmd_get_port_stats_ethtool_proc,
                               priv);
@@ -5230,7 +5235,7 @@ static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
 
        switchdev_port_fwd_mark_set(rocker_port->dev, NULL, false);
 
-       rocker_port_set_learning(rocker_port, NULL,
+       rocker_port_set_learning(rocker_port,
                                 !!(rocker_port->brport_flags & BR_LEARNING));
 
        err = rocker_port_ig_tbl(rocker_port, NULL, 0);