[PATCH AUTOSEL 4.19 575/671] net: stmmac: gmac4+: Not all Unicast addresses may be available
From: Sasha Levin <sashal@kernel.org>
Date: 2020-01-16 17:12:30
Also in:
linux-arm-kernel, lkml, netdev
Subsystem:
networking drivers, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Jose Abreu <Jose.Abreu@synopsys.com>
[ 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@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 48cf5e2b2441..bc8871e7351f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c@@ -443,7 +443,7 @@ static void dwmac4_set_filter(struct mac_device_info *hw, } /* 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