Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4790342882B; Sat, 12 Sep 2026 13:22:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789219338; cv=none; b=ABN5n4lafZMovGvICVq60He5DEzN8xNdp4jPM75vC5hl8eQdhAW6soDXve4W93ME3pyBVZgTHSClnGYvkJi3Tc/wvhRnj1BbLVH4cmuq+W1CjB58rVneSekGc6gLM/t5B1C2aqCUK6zx3xufbnTX1hD8PDCWuZPzoizRIRuiZxg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789219338; c=relaxed/simple; bh=ykM+86rL6jSi8QH+d3EK/IJ9COD9s0FTkA58TG0TWIw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GW9bRv7t7XjUduwnXj4ljMyZ1VzBn9p9yhGEvQpRBwqo9K57jo4h/NWZoWzAlUc/OS6U25ZHzMLvMGGTSgV1hEJBSXFdTqcGuBSwVQmVJFRjgTS+z3C7FFOHe5qoCAYh2lF3Q+cgrpTXbrfwv/PUHbP2g+mMf2vgKWAuRJmTPCo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=xXQbXxt9; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="xXQbXxt9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 13E211F00893; Sat, 12 Sep 2026 13:22:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789219337; bh=ETwjpg0+Jol6Q+WL7rUNKGGrJRYbrozDU7oS7ljz8lo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=xXQbXxt9rnQSfSKGP7cjrtm7474Q0ey9AW87g2ej6z5LD96v6/o0j3kCAq+OkwIGW DzJDLR/j6EbLJCTL+CcFDvhn0EI7fABAe/ez2tTtbqqxWmHd7qOEBp435cPNTx+O2/ tGHpdvA174+H9VPkvawQygaIZx2toWsmqSfxqpdE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Maxime Chevallier , Andrew Lunn , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.12 1329/1376] net: stmmac: dwmac4: Account for the primary MAC address for UC filtering Date: Sat, 12 Sep 2026 09:02:35 +0200 Message-ID: <20260912065637.153067056@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.535295758@linuxfoundation.org> References: <20260912065607.535295758@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Maxime Chevallier [ Upstream commit 82187f42c014d22520b9c3c4e2cfb519223fb29b ] 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: 477286b53f55 ("stmmac: add GMAC4 core support") Signed-off-by: Maxime Chevallier Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20260826140500.616466-4-maxime.chevallier@bootlin.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- 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 e65a65666cc1d..8ce5281634fe4 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c @@ -680,7 +680,7 @@ static void dwmac4_set_filter(struct mac_device_info *hw, value |= GMAC_PACKET_FILTER_HPF; /* Handle multiple unicast addresses */ - if (netdev_uc_count(dev) > hw->unicast_filter_entries) { + if (netdev_uc_count(dev) + 1 > hw->unicast_filter_entries) { /* Switch to promiscuous mode if more than 128 addrs * are required */ -- 2.53.0