net: socionext: Reset tx queue in ndo_stop

[ Upstream commit 8d5b0bf611ec5b7618d5b772dddc93b8afa78cb8 ]

We observed that packets and bytes count are not reset
when user performs interface down. Eventually, tx queue is
exhausted and packets will not be sent out.
To avoid this problem, resets tx queue in ndo_stop.

Fixes: 533dd11a12f6 ("net: socionext: Add Synquacer NetSec driver")
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: Yoshitoyo Osaki <osaki.yoshitoyo@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c
index 4289ccb26e4ec3045aee380144196150ca198f08..d2caeb9edc044ce516d2be05a6ff00cbfd82052f 100644 (file)
--- a/drivers/net/ethernet/socionext/netsec.c
+++ b/drivers/net/ethernet/socionext/netsec.c
@@ -940,6 +940,9 @@ static void netsec_uninit_pkt_dring(struct netsec_priv *priv, int id)
        dring->head = 0;
        dring->tail = 0;
        dring->pkt_cnt = 0;
+
+       if (id == NETSEC_RING_TX)
+               netdev_reset_queue(priv->ndev);
 }
 
 static void netsec_free_dring(struct netsec_priv *priv, int id)