From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 4AB8E296D0A; Mon, 12 May 2025 17:31:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747071074; cv=none; b=fpqBoCmffFumXGIjYyr5Oh/9ChkqyitVSXbTaYWxjl9cgI8CIRuuJc0Hgika1ZZfON47zPcZTC8P+uOwpVqKL63jI7N65J8vDjp1RZFQoxiIvyh0H1lToKixPjG6RW8qpZ6tajFyqzac4PovOwEHnoIi1ZsuIYT0G62/N5hY25k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747071074; c=relaxed/simple; bh=8Aj6IADtlvHUDxdCiAXUOH21L7RD/SBHPTkHddtcbrA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HqZXyRCwJMfVyppK3b1zoT8x2Kq3VRgAu9l3F7hNuji09m18UnehvwRZdgbRzRm0sd0QEYf0/+IdD3n+VdiF6MBx1623oECqVyM6wZTK3gVqgFjC4tUCjBiKDjD63YuWRyZ2q1sF5Fgy3tkj9F4tgj8Oltc2H0GqH5QA9BC2b3I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=r7r4pkHO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="r7r4pkHO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C5BAAC4CEF0; Mon, 12 May 2025 17:31:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1747071074; bh=8Aj6IADtlvHUDxdCiAXUOH21L7RD/SBHPTkHddtcbrA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r7r4pkHOBGSMApmpKkum/S1JbGmh5SDELk63vRkork7Nor8NbTbj+O3P1z6r+0Erd kjDbXh+WngSgSwA7yksah6NXfWAGbuV9dU3tL3xB+7AY4z0NrxAPcIWeLdNFh4NHSb UzC21QPIaNluicZhCkjEOT15vkidzxjNzxCh2m4A= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jonas Gorski , Florian Fainelli , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.15 09/54] net: dsa: b53: allow leaky reserved multicast Date: Mon, 12 May 2025 19:29:21 +0200 Message-ID: <20250512172016.023855586@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250512172015.643809034@linuxfoundation.org> References: <20250512172015.643809034@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jonas Gorski [ Upstream commit 5f93185a757ff38b36f849c659aeef368db15a68 ] Allow reserved multicast to ignore VLAN membership so STP and other management protocols work without a PVID VLAN configured when using a vlan aware bridge. Fixes: 967dd82ffc52 ("net: dsa: b53: Add support for Broadcom RoboSwitch") Signed-off-by: Jonas Gorski Tested-by: Florian Fainelli Reviewed-by: Florian Fainelli Link: https://patch.msgid.link/20250429201710.330937-2-jonas.gorski@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/dsa/b53/b53_common.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index 27025ca5a7598..08f9929132e47 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -373,9 +373,11 @@ static void b53_enable_vlan(struct b53_device *dev, int port, bool enable, b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5); } + vc1 &= ~VC1_RX_MCST_FWD_EN; + if (enable) { vc0 |= VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID; - vc1 |= VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN; + vc1 |= VC1_RX_MCST_UNTAG_EN; vc4 &= ~VC4_ING_VID_CHECK_MASK; if (enable_filtering) { vc4 |= VC4_ING_VID_VIO_DROP << VC4_ING_VID_CHECK_S; @@ -393,7 +395,7 @@ static void b53_enable_vlan(struct b53_device *dev, int port, bool enable, } else { vc0 &= ~(VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID); - vc1 &= ~(VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN); + vc1 &= ~VC1_RX_MCST_UNTAG_EN; vc4 &= ~VC4_ING_VID_CHECK_MASK; vc5 &= ~VC5_DROP_VTABLE_MISS; -- 2.39.5