Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...

[mirror_ubuntu-eoan-kernel.git] / drivers / net / ethernet / stmicro / stmmac / stmmac_ethtool.c

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index e8eff09bbbd73c7b036f5cd9520d030c949fddc1..0395f9eba801e9281f6af9a9fca8dc12057b55e4 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -430,6 +430,12 @@ static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
        struct stmmac_priv *priv = netdev_priv(dev);
        u32 support = WAKE_MAGIC | WAKE_UCAST;
 
+       /* By default almost all GMAC devices support the WoL via
+        * magic frame but we can disable it if the HW capability
+        * register shows no support for pmt_magic_frame. */
+       if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame))
+               wol->wolopts &= ~WAKE_MAGIC;
+
        if (!device_can_wakeup(priv->device))
                return -EINVAL;