diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-04 00:45:13 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-06 17:31:52 +0100 |
| commit | 1f7c164b6f2a8a028bfc36097fc42bf061c5212e (patch) | |
| tree | e2ef3cf5ce41c01541a3557e9d1c5847399c37a7 | |
| parent | 1a699476e25814343766342672c655fb135224cc (diff) | |
ACPI / hotplug / PCI: Rework acpiphp_check_host_bridge()
Since the only existing caller of acpiphp_check_host_bridge(),
which is acpi_pci_root_scan_dependent(), already has a struct
acpi_device pointer needed to obtain the ACPIPHP context, it
doesn't make sense to execute acpi_bus_get_device() on its
handle in acpiphp_handle_to_bridge() just in order to get that
pointer back.
For this reason, modify acpiphp_check_host_bridge() to take
a struct acpi_device pointer as its argument and rearrange the
code accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
| -rw-r--r-- | drivers/acpi/pci_root.c | 2 | ||||
| -rw-r--r-- | drivers/pci/hotplug/acpiphp_glue.c | 11 | ||||
| -rw-r--r-- | include/linux/pci-acpi.h | 4 |
3 files changed, 6 insertions, 11 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index c1c4102e647..c288ff3c699 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -51,7 +51,7 @@ static void acpi_pci_root_remove(struct acpi_device *device); static int acpi_pci_root_scan_dependent(struct acpi_device *adev) { - acpiphp_check_host_bridge(adev->handle); + acpiphp_check_host_bridge(adev); return 0; } diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index b7342d2e819..11a6117fb35 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -382,15 +382,11 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data, return AE_OK; } -static struct acpiphp_bridge *acpiphp_handle_to_bridge(acpi_handle handle) +static struct acpiphp_bridge *acpiphp_dev_to_bridge(struct acpi_device *adev) { - struct acpi_device *adev = acpi_bus_get_acpi_device(handle); struct acpiphp_context *context; struct acpiphp_bridge *bridge = NULL; - if (!adev) - return NULL; - acpi_lock_hp_context(); context = acpiphp_get_context(adev); if (context) { @@ -401,7 +397,6 @@ static struct acpiphp_bridge *acpiphp_handle_to_bridge(acpi_handle handle) acpiphp_put_context(context); } acpi_unlock_hp_context(); - acpi_bus_put_acpi_device(adev); return bridge; } @@ -768,11 +763,11 @@ static void acpiphp_sanitize_bus(struct pci_bus *bus) * ACPI event handlers */ -void acpiphp_check_host_bridge(acpi_handle handle) +void acpiphp_check_host_bridge(struct acpi_device *adev) { struct acpiphp_bridge *bridge; - bridge = acpiphp_handle_to_bridge(handle); + bridge = acpiphp_dev_to_bridge(adev); if (bridge) { pci_lock_rescan_remove(); diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 5a462c4e500..637a608ded0 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -59,12 +59,12 @@ static inline void acpi_pci_slot_remove(struct pci_bus *bus) { } void acpiphp_init(void); void acpiphp_enumerate_slots(struct pci_bus *bus); void acpiphp_remove_slots(struct pci_bus *bus); -void acpiphp_check_host_bridge(acpi_handle handle); +void acpiphp_check_host_bridge(struct acpi_device *adev); #else static inline void acpiphp_init(void) { } static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { } static inline void acpiphp_remove_slots(struct pci_bus *bus) { } -static inline void acpiphp_check_host_bridge(acpi_handle handle) { } +static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { } #endif #else /* CONFIG_ACPI */ |