| From ea461abf61753b4b79e625a7c20650105b990f21 Mon Sep 17 00:00:00 2001 |
| From: Gavin Shan <shangw@linux.vnet.ibm.com> |
| Date: Wed, 5 Jun 2013 15:34:02 +0800 |
| Subject: powerpc/eeh: Fix fetching bus for single-dev-PE |
| |
| From: Gavin Shan <shangw@linux.vnet.ibm.com> |
| |
| commit ea461abf61753b4b79e625a7c20650105b990f21 upstream. |
| |
| While running Linux as guest on top of phyp, we possiblly have |
| PE that includes single PCI device. However, we didn't return |
| its PCI bus correctly and it leads to failure on recovery from |
| EEH errors for single-dev-PE. The patch fixes the issue. |
| |
| Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> |
| Cc: Steve Best <sbest@us.ibm.com> |
| Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| arch/powerpc/platforms/pseries/eeh_pe.c | 3 ++- |
| 1 file changed, 2 insertions(+), 1 deletion(-) |
| |
| --- a/arch/powerpc/platforms/pseries/eeh_pe.c |
| +++ b/arch/powerpc/platforms/pseries/eeh_pe.c |
| @@ -639,7 +639,8 @@ struct pci_bus *eeh_pe_bus_get(struct ee |
| |
| if (pe->type & EEH_PE_PHB) { |
| bus = pe->phb->bus; |
| - } else if (pe->type & EEH_PE_BUS) { |
| + } else if (pe->type & EEH_PE_BUS || |
| + pe->type & EEH_PE_DEVICE) { |
| edev = list_first_entry(&pe->edevs, struct eeh_dev, list); |
| pdev = eeh_dev_to_pci_dev(edev); |
| if (pdev) |
