From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101]) (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 811E817BCA; Sun, 4 Oct 2026 14:35:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=156.67.10.101 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791124524; cv=none; b=bB8AFcqgEB/8GvRwYwIhBgeAFRMiIs12B/gDuZuYWUwnJTBMcvS020dCypRn1w+pskukSRKNh2VisBg9W1iaghNyRBlRXa9HcA6qnThPls9fnqkq5N9TfLvzXB36rrGMMPcJHBREcJIHbVrN0PNdUFIV8zqIRuzvSI+A2NFIMEw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791124524; c=relaxed/simple; bh=KfkLjcW/tKdgnBJXgRKTVEeAR1KUWD8jDu7yRDyk0Uo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=cet8/z4mkJQpQxOgH6ZhoBJGi9+wFVJvqGtpghvHjzJTjhjBX1jyy34I3fq1u6kFZaiLbCIMaQ7ZPLtMUSXB74f1DwDGJTWVBVy2nTi+yzM6aWLMFGkmqkp4wjH2tcd7XTvApydqk/VDSTht6gj7rGK6umbMPSDTUtAIeIlVmB8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch; spf=pass smtp.mailfrom=lunn.ch; dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b=sLT0G5OC; arc=none smtp.client-ip=156.67.10.101 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) header.d=lunn.ch header.i=@lunn.ch header.b="sLT0G5OC" 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=3Xj2E3zp+z9VyVZKqnPlhHjZYBy2RAnbUbQDh2qi2aQ=; b=sLT0G5OCXPy5WzJ5YXXg/WcZwh ggOtnhEnXIqj5Y1OEqd6qCVRuxHOKXU6GUEhDMi1OspCY7itkukZBWQMxWQHcvbbrTz00j09QT593 Y5QSaX+8un2D+jqThhCc2GfoCfke+oU4BI8hnyAFx+DCpoqaFtMUdr+4jVYcd8jLGFiY=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1xDNJ4-008tKz-Q3; Sun, 04 Oct 2026 16:35:14 +0200 Date: Sun, 4 Oct 2026 16:35:14 +0200 From: Andrew Lunn To: Igor Velkov Cc: Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Lukas Wunner , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net] net: phy: postpone PHY interrupts during sleep with MAC-managed PM Message-ID: <77e5a3c4-8b47-4609-b8a2-7f7b353bc219@lunn.ch> References: <20261002043548.1302145-1-iav@iav.lv> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261002043548.1302145-1-iav@iav.lv> > /* Wakeup interrupts may occur during the system sleep transition when > * the PHY is inaccessible. Set flag to postpone handling until the PHY > * has resumed. Wait for concurrent interrupt handler to complete. > + * The MDIO bus may be powered down even when the MAC manages PHY PM. Just think about that statement. MAC manages _PHY_ PM. It is not MAC managed _PHY and MDIO_ bus PM. To me, this is key, because it means your whole approach is wrong. Lets start with a clear definition what MAC manages PHY PM is. Then we can decide on a solution. Andrew --- pw-bot: cr