diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-07-16 16:04:53 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-07-21 16:59:46 +0200 |
| commit | 9d4f0ecb87fd939207682ec30dcaf128d43f07fb (patch) | |
| tree | a8819b468969b302cd66e70316c7d26fca1fab60 /drivers/acpi/pci_root.c | |
| parent | 5d42a19dac27dc23b827b1a0ba88e76aa89be011 (diff) | |
ACPI: PCI: Introduce acpi_dev_get_pci_dev()
Some acpi_get_pci_dev() callers already have a struct ACPI device for
which they want to get the struct pci_dev pointer of the associated
PCI device, so they don't need to look for one.
For this reason, add acpi_dev_get_pci_dev() that will get a PCI device
for a given ACPI one (if possible) and turn acpi_get_pci_dev() into
a static inline helper passing the acpi_fetch_acpi_dev() return value
directly to acpi_dev_get_pci_dev().
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/3430928.44csPzL39Z@rafael.j.wysocki
Diffstat (limited to 'drivers/acpi/pci_root.c')
| -rw-r--r-- | drivers/acpi/pci_root.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 85202f2f5394..6f78f96332ea 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -293,20 +293,20 @@ struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) EXPORT_SYMBOL_GPL(acpi_pci_find_root); /** - * acpi_get_pci_dev - convert ACPI CA handle to struct pci_dev - * @handle: the handle in question + * acpi_dev_get_pci_dev - Get a struct pci_dev for a given ACPI device + * @adev: Target ACPI device. * - * Given an ACPI CA handle, the desired PCI device is located in the - * list of PCI devices. + * Find the PCI device associated with @adev, if any, and bump up its reference + * counter. * - * If the device is found, its reference count is increased and this - * function returns a pointer to its data structure. The caller must - * decrement the reference count by calling pci_dev_put(). - * If no device is found, %NULL is returned. + * Callers are responsible for dropping the PCI device reference obtained by + * this function. + * + * Return: The struct pci_dev pointer of a reference-counted PCI device on + * success or NULL on failure. */ -struct pci_dev *acpi_get_pci_dev(acpi_handle handle) +struct pci_dev *acpi_dev_get_pci_dev(struct acpi_device *adev) { - struct acpi_device *adev = acpi_fetch_acpi_dev(handle); struct acpi_device_physical_node *pn; if (!adev) @@ -323,7 +323,7 @@ struct pci_dev *acpi_get_pci_dev(acpi_handle handle) return NULL; } -EXPORT_SYMBOL_GPL(acpi_get_pci_dev); +EXPORT_SYMBOL_GPL(acpi_dev_get_pci_dev); /** * acpi_pci_osc_control_set - Request control of PCI root _OSC features. |