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| author | Jose Abreu <Jose.Abreu@synopsys.com> | 2019-05-24 11:20:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-31 08:28:21 +0300 |
| commit | e703ea55e717ab779bd23abbae3ce8b68dc12b9a (patch) | |
| tree | d09e6beea8f2cc739a53b8d03e0baa6b3693f132 /drivers/net/ethernet/stmicro | |
| parent | e20d2f994fd99f3d483cae62cec8efbcfbfb22ae (diff) | |
| download | linux-e703ea55e717ab779bd23abbae3ce8b68dc12b9a.tar.xz | |
net: stmmac: dwmac4/5: Clear unused address entries
[ Upstream commit 0620ec6c62a5a07625b65f699adc5d1b90394ee6 ]
In case we don't use a given address entry we need to clear it because
it could contain previous values that are no longer valid.
Found out while running stmmac selftests.
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/stmicro')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c index 55ae14a6bb8c..ed5fcd4994f2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c @@ -443,14 +443,20 @@ static void dwmac4_set_filter(struct mac_device_info *hw, * are required */ value |= GMAC_PACKET_FILTER_PR; - } else if (!netdev_uc_empty(dev)) { - int reg = 1; + } else { struct netdev_hw_addr *ha; + int reg = 1; netdev_for_each_uc_addr(ha, dev) { dwmac4_set_umac_addr(hw, ha->addr, reg); reg++; } + + while (reg <= GMAC_MAX_PERFECT_ADDRESSES) { + writel(0, ioaddr + GMAC_ADDR_HIGH(reg)); + writel(0, ioaddr + GMAC_ADDR_LOW(reg)); + reg++; + } } writel(value, ioaddr + GMAC_PACKET_FILTER); |