From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:13995 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752029AbaEAQ2W (ORCPT ); Thu, 1 May 2014 12:28:22 -0400 Subject: [PATCH 12/13] PCI: Remove pci_find_upstream_pcie_bridge() From: Alex Williamson To: linux-pci@vger.kernel.org, iommu@lists.linux-foundation.org Cc: bhelgaas@google.com, acooks@gmail.com, linux-kernel@vger.kernel.org Date: Thu, 01 May 2014 10:28:18 -0600 Message-ID: <20140501162818.17512.49335.stgit@bling.home> In-Reply-To: <20140501160128.17512.23609.stgit@bling.home> References: <20140501160128.17512.23609.stgit@bling.home> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-pci-owner@vger.kernel.org List-ID: It's broken and has no users. Signed-off-by: Alex Williamson --- drivers/pci/search.c | 35 ----------------------------------- include/linux/pci.h | 11 ----------- 2 files changed, 46 deletions(-) diff --git a/drivers/pci/search.c b/drivers/pci/search.c index 1eab231..6d3b9be 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -238,41 +238,6 @@ struct pci_dev *pci_find_dma_isolation_root(struct pci_dev *pdev) return pdev; } -/* - * find the upstream PCIe-to-PCI bridge of a PCI device - * if the device is PCIE, return NULL - * if the device isn't connected to a PCIe bridge (that is its parent is a - * legacy PCI bridge and the bridge is directly connected to bus 0), return its - * parent - */ -struct pci_dev * -pci_find_upstream_pcie_bridge(struct pci_dev *pdev) -{ - struct pci_dev *tmp = NULL; - - if (pci_is_pcie(pdev)) - return NULL; - while (1) { - if (pci_is_root_bus(pdev->bus)) - break; - pdev = pdev->bus->self; - /* a p2p bridge */ - if (!pci_is_pcie(pdev)) { - tmp = pdev; - continue; - } - /* PCI device should connect to a PCIe bridge */ - if (pci_pcie_type(pdev) != PCI_EXP_TYPE_PCI_BRIDGE) { - /* Busted hardware? */ - WARN_ON_ONCE(1); - return NULL; - } - return pdev; - } - - return tmp; -} - static struct pci_bus *pci_do_find_bus(struct pci_bus *bus, unsigned char busnr) { struct pci_bus *child; diff --git a/include/linux/pci.h b/include/linux/pci.h index 0d50064..bf4b0e9 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1802,15 +1802,4 @@ int pci_for_each_dma_alias(struct pci_dev *pdev, u16 alias, void *data), void *data); struct pci_dev *pci_find_dma_isolation_root(struct pci_dev *pdev); -/** - * pci_find_upstream_pcie_bridge - find upstream PCIe-to-PCI bridge of a device - * @pdev: the PCI device - * - * if the device is PCIE, return NULL - * if the device isn't connected to a PCIe bridge (that is its parent is a - * legacy PCI bridge and the bridge is directly connected to bus 0), return its - * parent - */ -struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev); - #endif /* LINUX_PCI_H */