acpi_get_object_info() is intended for early probe usage and as such should
not call any methods which may rely on OpRegions, but it used to also call
_STA to get the status, which on some systems does rely on OpRegions, this
behavior and the acpi_device_info.current_status member are being removed.
This commit prepares the acpiphp_ibm code for this by having it get the
status itself using acpi_bus_get_status_handle(). Note no error handling is
necessary on any errors acpi_bus_get_status_handle() leaves the value of
the passed in current_status at its 0 initialization value.
Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
Changes in v2:
-Use () after function names in commit message
-Add Bjorn's Acked-by
---
drivers/pci/hotplug/acpiphp_ibm.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index 984c7e8cec5a..8472c4a27f70 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -399,6 +399,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
u32 lvl, void *context, void **rv)
{
acpi_handle *phandle = (acpi_handle *)context;
+ unsigned long long current_status = 0;
acpi_status status;
struct acpi_device_info *info;
int retval = 0;
@@ -410,7 +411,9 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
return retval;
}
- if (info->current_status && (info->valid & ACPI_VALID_HID) &&
+ acpi_bus_get_status_handle(handle, ¤t_status);
+
+ if (current_status && (info->valid & ACPI_VALID_HID) &&
(!strcmp(info->hardware_id.string, IBM_HARDWARE_ID1) ||
!strcmp(info->hardware_id.string, IBM_HARDWARE_ID2))) {
pr_debug("found hardware: %s, handle: %p\n",
--
2.14.3
--
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