From: Jose Abreu <Jose.Abreu@xxxxxxxxxxxx>
[ Upstream commit 25683bab09a70542b9f8e3e28f79b3369e56701f ]
Some setups may not have all Unicast addresses filters available. Check
the number of available filters before trying to setup it.
Fixes: 477286b53f55 ("stmmac: add GMAC4 core support")
Signed-off-by: Jose Abreu <Jose.Abreu@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index fc9954e4a7729..feae3adc793c5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -453,7 +453,7 @@ static void dwmac4_set_filter(struct mac_device_info *hw,
value |= GMAC_PACKET_FILTER_HPF;
/* Handle multiple unicast addresses */
- if (netdev_uc_count(dev) > GMAC_MAX_PERFECT_ADDRESSES) {
+ if (netdev_uc_count(dev) > hw->unicast_filter_entries) {
/* Switch to promiscuous mode if more than 128 addrs
* are required
*/
--
2.20.1
