On Monday, June 3, 2019 10:28:35 PM CEST Qian Cai wrote: > It appears that kernel-doc does not understand the return type *__ref, > > drivers/acpi/osl.c:306: warning: cannot understand function prototype: > 'void __iomem *__ref acpi_os_map_iomem(acpi_physical_address phys, > acpi_size size) > > Signed-off-by: Qian Cai <cai@xxxxxx> > --- > drivers/acpi/osl.c | 4 ++-- > include/acpi/acpi_io.h | 4 ++-- > 2 files changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c > index cc7507091dec..9c0edf2fc0dd 100644 > --- a/drivers/acpi/osl.c > +++ b/drivers/acpi/osl.c > @@ -301,8 +301,8 @@ static void acpi_unmap(acpi_physical_address pg_off, void __iomem *vaddr) > * During early init (when acpi_permanent_mmap has not been set yet) this > * routine simply calls __acpi_map_table() to get the job done. > */ > -void __iomem *__ref > -acpi_os_map_iomem(acpi_physical_address phys, acpi_size size) > +void __iomem __ref > +*acpi_os_map_iomem(acpi_physical_address phys, acpi_size size) > { > struct acpi_ioremap *map; > void __iomem *virt; > diff --git a/include/acpi/acpi_io.h b/include/acpi/acpi_io.h > index d0633fc1fc15..12d8bd333fe7 100644 > --- a/include/acpi/acpi_io.h > +++ b/include/acpi/acpi_io.h > @@ -16,8 +16,8 @@ static inline void __iomem *acpi_os_ioremap(acpi_physical_address phys, > > extern bool acpi_permanent_mmap; > > -void __iomem *__ref > -acpi_os_map_iomem(acpi_physical_address phys, acpi_size size); > +void __iomem __ref > +*acpi_os_map_iomem(acpi_physical_address phys, acpi_size size); > void __ref acpi_os_unmap_iomem(void __iomem *virt, acpi_size size); > void __iomem *acpi_os_get_iomem(acpi_physical_address phys, unsigned int size); > > Applied, thanks!