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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-23 13:50:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-23 13:50:53 -0700 |
| commit | b91fd4d5aad0c1124654341814067ca3f59490fc (patch) | |
| tree | f1ea23a27f0ad1dd91c336658cceed05f02cef63 /drivers | |
| parent | 4c0eec03b188efafba3a35315b59a9efbf9684fc (diff) | |
| parent | f3f011750a18abc389ef1b0d504fbeeacf641919 (diff) | |
| download | linux-b91fd4d5aad0c1124654341814067ca3f59490fc.tar.bz2 | |
Merge tag 'pci-v3.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Here are some more fixes for v3.10. The Moorestown update broke Intel
Medfield devices, so I reverted it. The acpiphp change fixes a
regression: we broke hotplug notifications to host bridges when we
split acpiphp into the host-bridge related part and the
endpoint-related part.
Moorestown
Revert "x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0"
Hotplug
PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check"
* tag 'pci-v3.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Revert "x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0"
PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/pci_root.c | 4 | ||||
| -rw-r--r-- | drivers/pci/hotplug/acpiphp_glue.c | 14 |
2 files changed, 17 insertions, 1 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 1dd6f6c85874..e427dc516c76 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -641,7 +641,9 @@ static void _handle_hotplug_event_root(struct work_struct *work) /* bus enumerate */ printk(KERN_DEBUG "%s: Bus check notify on %s\n", __func__, (char *)buffer.pointer); - if (!root) + if (root) + acpiphp_check_host_bridge(handle); + else handle_root_bridge_insertion(handle); break; diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 96fed19c6d90..716aa93fff76 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -950,6 +950,20 @@ check_sub_bridges(acpi_handle handle, u32 lvl, void *context, void **rv) return AE_OK ; } +void acpiphp_check_host_bridge(acpi_handle handle) +{ + struct acpiphp_bridge *bridge; + + bridge = acpiphp_handle_to_bridge(handle); + if (bridge) { + acpiphp_check_bridge(bridge); + put_bridge(bridge); + } + + acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, + ACPI_UINT32_MAX, check_sub_bridges, NULL, NULL, NULL); +} + static void _handle_hotplug_event_bridge(struct work_struct *work) { struct acpiphp_bridge *bridge; |