From: Sujith Pandel sujithpshankar@gmail.com
[ Upstream commit 6c51c82c60991bdbfb937f3bf0cdbe68d042073d ]
The function find_smbios_instance_string() does not consider the PCI domain number. As a result, SMBIOS type 41 device type instance would be exported to sysfs for all the PCI domains which have a PCI device with same bus/device/function, though PCI bus/device/func from a specific PCI domain has SMBIOS type 41 device type instance defined.
Address the issue by making find_smbios_instance_string() check PCI domain number as well.
Reported-by: Shai Fultheim Shai@ScaleMP.com Suggested-by: Shai Fultheim Shai@ScaleMP.com Tested-by: Shai Fultheim Shai@ScaleMP.com Signed-off-by: Sujith Pandel sujithpshankar@gmail.com Signed-off-by: Narendra K Narendra_K@Dell.com Signed-off-by: Bjorn Helgaas bhelgaas@google.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/pci/pci-label.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c index 024b5c179348..5986aad76088 100644 --- a/drivers/pci/pci-label.c +++ b/drivers/pci/pci-label.c @@ -43,9 +43,11 @@ static size_t find_smbios_instance_string(struct pci_dev *pdev, char *buf, { const struct dmi_device *dmi; struct dmi_dev_onboard *donboard; + int domain_nr; int bus; int devfn;
+ domain_nr = pci_domain_nr(pdev->bus); bus = pdev->bus->number; devfn = pdev->devfn;
@@ -53,8 +55,9 @@ static size_t find_smbios_instance_string(struct pci_dev *pdev, char *buf, while ((dmi = dmi_find_device(DMI_DEV_TYPE_DEV_ONBOARD, NULL, dmi)) != NULL) { donboard = dmi->device_data; - if (donboard && donboard->bus == bus && - donboard->devfn == devfn) { + if (donboard && donboard->segment == domain_nr && + donboard->bus == bus && + donboard->devfn == devfn) { if (buf) { if (attribute == SMBIOS_ATTR_INSTANCE_SHOW) return scnprintf(buf, PAGE_SIZE,