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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2022-06-13 20:10:03 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2022-06-20 20:28:48 +0200
commit2f6fe93fede802acfe010752db461ccd34745745 (patch)
tree1f4dd186389ec16e1d184ffa06b7efd8393ee79a /include/acpi
parentf5122be80daad8e53e6876add5ccbf9db7ca809c (diff)
downloadlinux-next-2f6fe93fede802acfe010752db461ccd34745745.tar.gz
ACPI: glue: Introduce acpi_find_child_by_adr()
Rearrange the ACPI device lookup code used internally by acpi_find_child_device() so it can avoid extra checks after finding one object with a matching _ADR and use it for defining acpi_find_child_by_adr() that will allow the callers to find a given ACPI device's child matching a given bus address without doing any other checks in check_one_child(). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/acpi_bus.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 0dc1ea0b52f5..597961969ca1 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -622,6 +622,8 @@ static inline int acpi_dma_configure(struct device *dev,
}
struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
u64 address, bool check_children);
+struct acpi_device *acpi_find_child_by_adr(struct acpi_device *adev,
+ acpi_bus_address adr);
int acpi_is_root_bridge(acpi_handle);
struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);