From f8b35bffd3cc4ffd14ab9c07909cdc45a9006776 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 23 Aug 2011 10:16:43 -0600 Subject: [PATCH] PCI hotplug: shpchp: don't blindly claim non-AMD 0x7450 device IDs commit 4cac2eb158c6da0c761689345c6cc5df788a6292 upstream. Previously we claimed device ID 0x7450, regardless of the vendor, which is clearly wrong. Now we'll claim that device ID only for AMD. I suspect this was just a typo in the original code, but it's possible this change will break shpchp on non-7450 AMD bridges. If so, we'll have to fix them as we find them. Reference: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=638863 Reported-by: Ralf Jung Cc: Joerg Roedel Signed-off-by: Bjorn Helgaas Signed-off-by: Jesse Barnes Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/shpchp_core.c | 4 ++-- drivers/pci/hotplug/shpchp_hpc.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c index 8a520a3d0f59..73e53a8fd9eb 100644 --- a/drivers/pci/hotplug/shpchp_core.c +++ b/drivers/pci/hotplug/shpchp_core.c @@ -312,8 +312,8 @@ static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_sp static int is_shpc_capable(struct pci_dev *dev) { - if ((dev->vendor == PCI_VENDOR_ID_AMD) || (dev->device == - PCI_DEVICE_ID_AMD_GOLAM_7450)) + if (dev->vendor == PCI_VENDOR_ID_AMD && + dev->device == PCI_DEVICE_ID_AMD_GOLAM_7450) return 1; if (!pci_find_capability(dev, PCI_CAP_ID_SHPC)) return 0; diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index 86dc39847769..d862a3f904e6 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -951,8 +951,8 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) ctrl->pci_dev = pdev; /* pci_dev of the P2P bridge */ ctrl_dbg(ctrl, "Hotplug Controller:\n"); - if ((pdev->vendor == PCI_VENDOR_ID_AMD) || (pdev->device == - PCI_DEVICE_ID_AMD_GOLAM_7450)) { + if (pdev->vendor == PCI_VENDOR_ID_AMD && + pdev->device == PCI_DEVICE_ID_AMD_GOLAM_7450) { /* amd shpc driver doesn't use Base Offset; assume 0 */ ctrl->mmio_base = pci_resource_start(pdev, 0); ctrl->mmio_size = pci_resource_len(pdev, 0); -- 2.11.4.GIT