From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=156.67.10.101 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793764752; b=Wxcyot+XUnB237dCVdAQd6w2nmd8f9aIQfc09Rdbn9uxcpVKqWNwsGpYLrqMv4LglFia 4GEnobaz372scHbXUC90ki2INjfgpbAU4L4Tuz317jxbD7FECbFR6+kCKRqu3s1EchLlm tEJPSq3JANvRMbVWBc9m2047J17WwZWNpd+s56PHPW1Ni2fKi9uuUaHGTWfFvPUKDcc1b v9muL9/UKzldG6vT2yE0PN5JdshxgR5mY+PfgvdhjSMkff3A1bYiCFUUDpiIKvayFRgXY XeMvyxmFqBZBp6YoqWyRA0q9/bQkzJpMSfwx5D8lpmNfTUCwkMftk1TNsImHduf307Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793764752; h=DMARC-Filter:DKIM-Signature:Received:Date:From:To:Cc:Subject: Message-ID:References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To; bh=Gk9BZfsJtLkT8YYFnf4pmohI/7bu4ZfvS3Dm7QuEGqo=; b=M190rYqF2WofhncoRuq41WAxIF4zsozTY0FSgy25I8nFvbIE5nsCP0dAbJExFnwU6EtX GB5mUyhMUS80hPCLRvhbjuLo+eKOWo7bOQ0x/OgN5FC7t8fUdWTrY9u2SMPFoL21D5x0Q HF913W/dtslu1hvzS28Oi/9YfmbVb0Yn16BbSQSAjJT3dTyP9+eFy2xE5P0JBtadwRtF+ LZ8tRai+fjNz9mu+Mz6fDWCFygqH8Ee25ECuPEvjVzrwN9obvCnyb1YkI+uvvRhgs+3F2 CoEdn3KYFw9r2VHF01GcSH+VBQ2kzhHJYa/lVUu3oDfr0K3K5EKQJEegXeWZS1CCJng== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=lunn.ch; spf=pass smtp.mailfrom=lunn.ch; dkim=pass header.d=lunn.ch header.i=@lunn.ch header.a=rsa-sha256 header.s=20171124 header.b=FOl9NUOZ; arc=none smtp.remote-ip=156.67.10.101 Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 84671606A31B; Wed, 4 Nov 2026 03:59:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 84671606A31B Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lunn.ch Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=lunn.ch header.i=@lunn.ch header.a=rsa-sha256 header.s=20171124 header.b=FOl9NUOZ DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=Gk9BZfsJtLkT8YYFnf4pmohI/7bu4ZfvS3Dm7QuEGqo=; b=FOl9NUOZ3JL9dPnDmGvRLtFE1a mBRE2rgn8rOLb1OOwwsjUZoHU+LtUAI4onBj1pu1YlDJP7cXMH2erasnXA+PnXN3Atuxnz2gTeYmL xY0wU3LRReVDStpF8MesUKS+dgCgHeQ727UnGAlsKSyrCeLr4pIdRezyEOHoYUsxP2ZA=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1xOS9R-00EEav-Ct; Wed, 04 Nov 2026 04:59:05 +0100 Date: Wed, 4 Nov 2026 04:59:05 +0100 From: Andrew Lunn To: David Yang Cc: netdev@vger.kernel.org, Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next 2/6] net: dsa: motorcomm: Rely on port isolation for CPU port Message-ID: <84089fcc-0150-4464-970a-09400f3ec5ca@lunn.ch> References: <20261102155641.3682626-1-mmyangfl@gmail.com> <20261102155641.3682626-3-mmyangfl@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261102155641.3682626-3-mmyangfl@gmail.com> > - ctrl = ~priv->cpu_ports_mask; > - res = yt921x_reg_write(priv, YT921X_PORTn_ISOLATION(port), ctrl); > - if (res) > - return res; > + if (!(BIT(port) & priv->cpu_ports_mask)) { if (!dsa_is_cpu_port(ds, port) ?