We have a few cases where we want to access struct device dev field in struct acpi_device from generic code that is build also without CONFIG_ACPI.
Provide here a minimal struct acpi_device stub that allows to build such a code without adding new #ifdef CONFIG_ACPI churn. This should not increase section sizes if code is protected by ACPI_COMPANION() runtime checks as those will be optimized out by later compiler stages in case CONFIG_ACPI is not set.
Signed-off-by: Jarkko Nikula jarkko.nikula@linux.intel.com --- Rafael, instead of this we could also have an accessor but adev->dev looked better in actual code and size vmlinux didn't change for x86_64_defconfig with CONFIG_ACPI is not set nor for omap2plus_defconfig. --- include/linux/acpi.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 0da49ed..df444e1 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -414,6 +414,10 @@ static inline bool acpi_driver_match_device(struct device *dev,
#else /* !CONFIG_ACPI */
+struct acpi_device { + struct device dev; +}; + #define acpi_disabled 1
#define ACPI_COMPANION(dev) (NULL)