From 2739d6f9a2b8729b0d85cbe0dc93e1d68670b6f2 Mon Sep 17 00:00:00 2001 From: Maxime Chevallier Date: Wed, 26 Aug 2026 16:04:56 +0200 Subject: [PATCH] net: stmmac: dwxgmac: Account for the primary MAC address for UC filtering The same filter slots are used to store the main MAC address as well as the address for the unicast filter. Let's account for that when deciding whether or not to use promisc when programming the UC list in hardware. Fixes: 0efedbf11f07 ("net: stmmac: xgmac: Fix XGMAC selftests") Signed-off-by: Maxime Chevallier Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20260826140500.616466-5-maxime.chevallier@bootlin.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c index 52054f31376d..fc6ddb51c682 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c @@ -532,7 +532,7 @@ static void dwxgmac2_set_filter(struct mac_device_info *hw, dwxgmac2_set_mchash(ioaddr, mc_filter, mcbitslog2); /* Handle multiple unicast addresses */ - if (netdev_uc_count(dev) > hw->unicast_filter_entries) { + if (netdev_uc_count(dev) + 1 > hw->unicast_filter_entries) { value |= XGMAC_FILTER_PR; } else { struct netdev_hw_addr *ha;