From: Arnd Bergmann <arnd@xxxxxxxx> The nfit_intel_shutdown_status() function has a __weak defintion in nfit.c and an override in acpi_nfit_test.c for testing purposes. This works without an extern declaration, but causes a W=1 build warning: drivers/acpi/nfit/core.c:1717:13: error: no previous prototype for 'nfit_intel_shutdown_status' [-Werror=missing-prototypes] Add a declaration in a header that gets included from both sides to shut up the warning and ensure that the prototypes actually match. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/acpi/nfit/nfit.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h index 6023ad61831a..573bc0de2990 100644 --- a/drivers/acpi/nfit/nfit.h +++ b/drivers/acpi/nfit/nfit.h @@ -347,4 +347,6 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, void acpi_nfit_desc_init(struct acpi_nfit_desc *acpi_desc, struct device *dev); bool intel_fwa_supported(struct nvdimm_bus *nvdimm_bus); extern struct device_attribute dev_attr_firmware_activate_noidle; +void nfit_intel_shutdown_status(struct nfit_mem *nfit_mem); + #endif /* __NFIT_H__ */ -- 2.39.2
