diff options
| author | Jose Abreu <Jose.Abreu@synopsys.com> | 2019-05-24 10:20:21 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-04 09:33:16 +0200 |
| commit | c66c5da5612ab64a5728a528a6f3ea7cb38082e0 (patch) | |
| tree | 5d06040eabec91cfb2b50877dbc254cf6ad00215 | |
| parent | 7897961f80d88c613675fa76b88acd6b3ef1a087 (diff) | |
net: stmmac: dwmac1000: Clear unused address entries
[ Upstream commit 9463c445590091202659cdfdd44b236acadfbd84 ]
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it could contain previous values that are no longer valid.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>
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c index 7d19029e2564..093e58e94075 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -213,6 +213,12 @@ static void dwmac1000_set_filter(struct mac_device_info *hw, GMAC_ADDR_LOW(reg)); reg++; } + + while (reg <= perfect_addr_number) { + writel(0, ioaddr + GMAC_ADDR_HIGH(reg)); + writel(0, ioaddr + GMAC_ADDR_LOW(reg)); + reg++; + } } #ifdef FRAME_FILTER_DEBUG |