stmmac: remove two useless initialisations

This patch removes two useless initialisations in the
stmmac_rx and stmmac_tx functions.
In the former, the count variable was reset twice and in
the stmmac_tx we only need to increment the dirty pointer
w/o setting the entry variable.

v2: review the subject and comment that was not clear in my
first version.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 7096633..0caae72 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -677,7 +677,7 @@ static void stmmac_tx(struct stmmac_priv *priv)
 
                priv->hw->desc->release_tx_desc(p);
 
-               entry = (++priv->dirty_tx) % txsize;
+               priv->dirty_tx++;
        }
        if (unlikely(netif_queue_stopped(priv->dev) &&
                     stmmac_tx_avail(priv) > STMMAC_TX_THRESH(priv))) {
@@ -1307,7 +1307,6 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit)
                display_ring(priv->dma_rx, rxsize);
        }
 #endif
-       count = 0;
        while (!priv->hw->desc->get_rx_owner(p)) {
                int status;