Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754583AbcKUVpZ (ORCPT ); Mon, 21 Nov 2016 16:45:25 -0500 Received: from mail.kernel.org ([198.145.29.136]:57298 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753261AbcKUVpW (ORCPT ); Mon, 21 Nov 2016 16:45:22 -0500 Subject: [PATCH v2 1/9] PCI/PME: Drop unused support for PMEs from Root Complex Event Collectors From: Bjorn Helgaas To: linux-pci@vger.kernel.org, "Rafael J. Wysocki" Cc: Lukas Wunner , linux-kernel@vger.kernel.org Date: Mon, 21 Nov 2016 15:45:19 -0600 Message-ID: <20161121214519.21036.33519.stgit@bhelgaas-glaptop.roam.corp.google.com> In-Reply-To: <20161121214006.21036.11599.stgit@bhelgaas-glaptop.roam.corp.google.com> References: <20161121214006.21036.11599.stgit@bhelgaas-glaptop.roam.corp.google.com> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1223 Lines: 39 Since we register pcie_pme_driver only for PCI_EXP_TYPE_ROOT_PORT, the PME driver never claims Root Complex Event Collectors. Remove unused code related to Root Complex Event Collectors. Signed-off-by: Bjorn Helgaas --- drivers/pci/pcie/pme.c | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c index 884bad5..9e8aa9d 100644 --- a/drivers/pci/pcie/pme.c +++ b/drivers/pci/pcie/pme.c @@ -319,23 +319,8 @@ static int pcie_pme_set_native(struct pci_dev *dev, void *ign) static void pcie_pme_mark_devices(struct pci_dev *port) { pcie_pme_set_native(port, NULL); - if (port->subordinate) { + if (port->subordinate) pci_walk_bus(port->subordinate, pcie_pme_set_native, NULL); - } else { - struct pci_bus *bus = port->bus; - struct pci_dev *dev; - - /* Check if this is a root port event collector. */ - if (pci_pcie_type(port) != PCI_EXP_TYPE_RC_EC || !bus) - return; - - down_read(&pci_bus_sem); - list_for_each_entry(dev, &bus->devices, bus_list) - if (pci_is_pcie(dev) - && pci_pcie_type(dev) == PCI_EXP_TYPE_RC_END) - pcie_pme_set_native(dev, NULL); - up_read(&pci_bus_sem); - } } /**