drivers: net: cpsw: drop host_port field from struct cpsw_priv

The host_port field is constantly assigned to 0 and this value has
never changed (since time when cpsw driver was introduced. More over,
if this field will be assigned to non 0 value it will break current
driver functionality.

Hence, there are no reasons to continue maintaining this host_port
field and it can be removed, and the HOST_PORT_NUM and ALE_PORT_HOST
defines can be used instead.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 12 insertions, 18 deletions

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 5292e70b4825..54bcc3851b7e 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -381,7 +381,6 @@ struct cpsw_priv {
         u32                             coal_intvl;
         u32                             bus_freq_mhz;
         int                             rx_packet_max;
-        int                             host_port;
         struct clk                      *clk;
         u8                              mac_addr[ETH_ALEN];
         struct cpsw_slave               *slaves;
@@ -531,7 +530,7 @@ static const struct cpsw_stats cpsw_gstrings_stats[] = {
                         int slave_port = cpsw_get_slave_port(priv,      \
                                                 slave->slave_num);      \
                         cpsw_ale_add_mcast(priv->ale, addr,             \
-                                1 << slave_port | 1 << priv->host_port, \
+                                1 << slave_port | ALE_PORT_HOST,        \
                                 ALE_VLAN, slave->port_vlan, 0);         \
                 } else {                                                \
                         cpsw_ale_add_mcast(priv->ale, addr,             \
@@ -542,10 +541,7 @@ static const struct cpsw_stats cpsw_gstrings_stats[] = {
 
 static inline int cpsw_get_slave_port(struct cpsw_priv *priv, u32 slave_num)
 {
-        if (priv->host_port == 0)
-                return slave_num + 1;
-        else
-                return slave_num;
+        return slave_num + 1;
 }
 
 static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
@@ -1090,7 +1086,7 @@ static inline void cpsw_add_dual_emac_def_ale_entries(
                 struct cpsw_priv *priv, struct cpsw_slave *slave,
                 u32 slave_port)
 {
-        u32 port_mask = 1 << slave_port | 1 << priv->host_port;
+        u32 port_mask = 1 << slave_port | ALE_PORT_HOST;
 
         if (priv->version == CPSW_VERSION_1)
                 slave_write(slave, slave->port_vlan, CPSW1_PORT_VLAN);
@@ -1101,7 +1097,7 @@ static inline void cpsw_add_dual_emac_def_ale_entries(
         cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
                            port_mask, ALE_VLAN, slave->port_vlan, 0);
         cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
-                priv->host_port, ALE_VLAN | ALE_SECURE, slave->port_vlan);
+                HOST_PORT_NUM, ALE_VLAN | ALE_SECURE, slave->port_vlan);
 }
 
 static void soft_reset_slave(struct cpsw_slave *slave)
@@ -1202,7 +1198,7 @@ static void cpsw_init_host_port(struct cpsw_priv *priv)
         cpsw_ale_start(priv->ale);
 
         /* switch to vlan unaware mode */
-        cpsw_ale_control_set(priv->ale, priv->host_port, ALE_VLAN_AWARE,
+        cpsw_ale_control_set(priv->ale, HOST_PORT_NUM, ALE_VLAN_AWARE,
                              CPSW_ALE_VLAN_AWARE);
         control_reg = readl(&priv->regs->control);
         control_reg |= CPSW_VLAN_AWARE;
@@ -1216,14 +1212,14 @@ static void cpsw_init_host_port(struct cpsw_priv *priv)
                      &priv->host_port_regs->cpdma_tx_pri_map);
         __raw_writel(0, &priv->host_port_regs->cpdma_rx_chan_map);
 
-        cpsw_ale_control_set(priv->ale, priv->host_port,
+        cpsw_ale_control_set(priv->ale, HOST_PORT_NUM,
                              ALE_PORT_STATE, ALE_PORT_STATE_FORWARD);
 
         if (!priv->data.dual_emac) {
-                cpsw_ale_add_ucast(priv->ale, priv->mac_addr, priv->host_port,
+                cpsw_ale_add_ucast(priv->ale, priv->mac_addr, HOST_PORT_NUM,
                                    0, 0);
                 cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
-                                   1 << priv->host_port, 0, 0, ALE_MCAST_FWD_2);
+                                   ALE_PORT_HOST, 0, 0, ALE_MCAST_FWD_2);
         }
 }
 
@@ -1616,9 +1612,9 @@ static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p)
                 flags = ALE_VLAN;
         }
 
-        cpsw_ale_del_ucast(priv->ale, priv->mac_addr, priv->host_port,
+        cpsw_ale_del_ucast(priv->ale, priv->mac_addr, HOST_PORT_NUM,
                            flags, vid);
-        cpsw_ale_add_ucast(priv->ale, addr->sa_data, priv->host_port,
+        cpsw_ale_add_ucast(priv->ale, addr->sa_data, HOST_PORT_NUM,
                            flags, vid);
 
         memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
@@ -1667,7 +1663,7 @@ static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv,
                 return ret;
 
         ret = cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
-                                 priv->host_port, ALE_VLAN, vid);
+                                 HOST_PORT_NUM, ALE_VLAN, vid);
         if (ret != 0)
                 goto clean_vid;
 
@@ -1679,7 +1675,7 @@ static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv,
 
 clean_vlan_ucast:
         cpsw_ale_del_ucast(priv->ale, priv->mac_addr,
-                            priv->host_port, ALE_VLAN, vid);
+                           HOST_PORT_NUM, ALE_VLAN, vid);
 clean_vid:
         cpsw_ale_del_vlan(priv->ale, vid, 0);
         return ret;
@@ -2148,7 +2144,6 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev,
         priv_sl2->bus_freq_mhz = priv->bus_freq_mhz;
 
         priv_sl2->regs = priv->regs;
-        priv_sl2->host_port = priv->host_port;
         priv_sl2->host_port_regs = priv->host_port_regs;
         priv_sl2->wr_regs = priv->wr_regs;
         priv_sl2->hw_stats = priv->hw_stats;
@@ -2317,7 +2312,6 @@ static int cpsw_probe(struct platform_device *pdev)
                 goto clean_runtime_disable_ret;
         }
         priv->regs = ss_regs;
-        priv->host_port = HOST_PORT_NUM;
 
         /* Need to enable clocks with runtime PM api to access module
          * registers