From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E3C85C48BE0 for ; Sat, 22 Jun 2019 02:06:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C460D20821 for ; Sat, 22 Jun 2019 02:06:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726067AbfFVCGF (ORCPT ); Fri, 21 Jun 2019 22:06:05 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:48078 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726049AbfFVCGE (ORCPT ); Fri, 21 Jun 2019 22:06:04 -0400 Received: from localhost (unknown [50.234.174.228]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id CE33E14DE8713; Fri, 21 Jun 2019 19:06:03 -0700 (PDT) Date: Fri, 21 Jun 2019 22:06:00 -0400 (EDT) Message-Id: <20190621.220600.907494131596072466.davem@davemloft.net> To: hkallweit1@gmail.com Cc: bhelgaas@google.com, nic_swsd@realtek.com, linux-pci@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCH net-next 0/2] PCI: let pci_disable_link_state propagate errors From: David Miller In-Reply-To: <5ea56278-05e2-794f-5f66-23343e72164c@gmail.com> References: <5ea56278-05e2-794f-5f66-23343e72164c@gmail.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Fri, 21 Jun 2019 19:06:04 -0700 (PDT) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Heiner Kallweit Date: Tue, 18 Jun 2019 23:12:56 +0200 > Drivers like r8169 rely on pci_disable_link_state() having disabled > certain ASPM link states. If OS can't control ASPM then > pci_disable_link_state() turns into a no-op w/o informing the caller. > The driver therefore may falsely assume the respective ASPM link > states are disabled. Let pci_disable_link_state() propagate errors > to the caller, enabling the caller to react accordingly. > > I'd propose to let this series go through the netdev tree if the PCI > core extension is acked by the PCI people. Series applied, thanks Heiner.