Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[mirror_ubuntu-bionic-kernel.git] / drivers / infiniband / hw / hfi1 / pcie.c

diff --git a/drivers/infiniband/hw/hfi1/pcie.c b/drivers/infiniband/hw/hfi1/pcie.c
index 09e50fd2a08f07bf7b2d42d3d4b4a1a00644b2ce..8c7e7a60b71584d5e587f6ef664cc773ab991991 100644 (file)
--- a/drivers/infiniband/hw/hfi1/pcie.c
+++ b/drivers/infiniband/hw/hfi1/pcie.c
@@ -411,15 +411,12 @@ int restore_pci_variables(struct hfi1_devdata *dd)
        if (ret)
                goto error;
 
-       ret = pci_write_config_dword(dd->pcidev, PCIE_CFG_SPCIE1,
-                                    dd->pci_lnkctl3);
-       if (ret)
-               goto error;
-
-       ret = pci_write_config_dword(dd->pcidev, PCIE_CFG_TPH2, dd->pci_tph2);
-       if (ret)
-               goto error;
-
+       if (pci_find_ext_capability(dd->pcidev, PCI_EXT_CAP_ID_TPH)) {
+               ret = pci_write_config_dword(dd->pcidev, PCIE_CFG_TPH2,
+                                            dd->pci_tph2);
+               if (ret)
+                       goto error;
+       }
        return 0;
 
 error:
@@ -469,15 +466,12 @@ int save_pci_variables(struct hfi1_devdata *dd)
        if (ret)
                goto error;
 
-       ret = pci_read_config_dword(dd->pcidev, PCIE_CFG_SPCIE1,
-                                   &dd->pci_lnkctl3);
-       if (ret)
-               goto error;
-
-       ret = pci_read_config_dword(dd->pcidev, PCIE_CFG_TPH2, &dd->pci_tph2);
-       if (ret)
-               goto error;
-
+       if (pci_find_ext_capability(dd->pcidev, PCI_EXT_CAP_ID_TPH)) {
+               ret = pci_read_config_dword(dd->pcidev, PCIE_CFG_TPH2,
+                                           &dd->pci_tph2);
+               if (ret)
+                       goto error;
+       }
        return 0;
 
 error: