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net: stmmac: selftests: Guard VLAN Perfect test against non supported HW

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When HW does not support perfect filtering the feature will not be
enabled in the net_device. Add a check for this to prevent failures.

Fixes: 1b2250a04c ("net: stmmac: selftests: Add tests for VLAN Perfect Filtering")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2020-01-14 17:09:23 +01:00 committed by David S. Miller
parent d39b68e5a7
commit 4eee13f14d
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
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@ -971,6 +971,9 @@ static int stmmac_test_vlanfilt_perfect(struct stmmac_priv *priv)
{
int ret, prev_cap = priv->dma_cap.vlhash;
if (!(priv->dev->features & NETIF_F_HW_VLAN_CTAG_FILTER))
return -EOPNOTSUPP;
priv->dma_cap.vlhash = 0;
ret = __stmmac_test_vlanfilt(priv);
priv->dma_cap.vlhash = prev_cap;
@ -1063,6 +1066,9 @@ static int stmmac_test_dvlanfilt_perfect(struct stmmac_priv *priv)
{
int ret, prev_cap = priv->dma_cap.vlhash;
if (!(priv->dev->features & NETIF_F_HW_VLAN_STAG_FILTER))
return -EOPNOTSUPP;
priv->dma_cap.vlhash = 0;
ret = __stmmac_test_dvlanfilt(priv);
priv->dma_cap.vlhash = prev_cap;