net: stmmac: add stmmac_try_to_start_sw_lpi()

There are two places which call stmmac_enable_eee_mode() and follow it
immediately by modifying the expiry of priv->eee_ctrl_timer. Both code
paths are trying to enable LPI mode. Remove this duplication by
providing a function for this.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tXItM-000MBI-CX@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 26ff1de..2bb6175 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -426,6 +426,13 @@ static int stmmac_enable_eee_mode(struct stmmac_priv *priv)
        return 0;
 }
 
+static void stmmac_try_to_start_sw_lpi(struct stmmac_priv *priv)
+{
+       if (stmmac_enable_eee_mode(priv))
+               mod_timer(&priv->eee_ctrl_timer,
+                         STMMAC_LPI_T(priv->tx_lpi_timer));
+}
+
 /**
  * stmmac_stop_sw_lpi - stop transmitting LPI
  * @priv: driver private structure
@@ -449,8 +456,7 @@ static void stmmac_eee_ctrl_timer(struct timer_list *t)
 {
        struct stmmac_priv *priv = from_timer(priv, t, eee_ctrl_timer);
 
-       if (stmmac_enable_eee_mode(priv))
-               mod_timer(&priv->eee_ctrl_timer, STMMAC_LPI_T(priv->tx_lpi_timer));
+       stmmac_try_to_start_sw_lpi(priv);
 }
 
 /**
@@ -2782,10 +2788,8 @@ static int stmmac_tx_clean(struct stmmac_priv *priv, int budget, u32 queue,
                        xmits = budget;
        }
 
-       if (priv->eee_sw_timer_en && !priv->tx_path_in_lpi_mode) {
-               if (stmmac_enable_eee_mode(priv))
-                       mod_timer(&priv->eee_ctrl_timer, STMMAC_LPI_T(priv->tx_lpi_timer));
-       }
+       if (priv->eee_sw_timer_en && !priv->tx_path_in_lpi_mode)
+               stmmac_try_to_start_sw_lpi(priv);
 
        /* We still have pending packets, let's call for a new scheduling */
        if (tx_q->dirty_tx != tx_q->cur_tx)