Yazen, On 08.01.25 10:10:37, Yazen Ghannam wrote: > On Tue, Jan 07, 2025 at 05:19:22PM +0100, Robert Richter wrote: > > Seen the following build error: > > > > ./include/linux/prmt.h:5:27: error: unknown type name ‘guid_t’ > > 5 | int acpi_call_prm_handler(guid_t handler_guid, void *param_buffer); > > | ^~~~~~ > > > > The include file uses guid_t but it is not declared. Include > > linux/uuid.h to fix this. > > > > Cc: Yazen Ghannam <Yazen.Ghannam@xxxxxxx> > > Cc: John Allen <john.allen@xxxxxxx> > > Cc: Borislav Petkov (AMD) <bp@xxxxxxxxx> > > Signed-off-by: Robert Richter <rrichter@xxxxxxx> > > --- > > include/linux/prmt.h | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/include/linux/prmt.h b/include/linux/prmt.h > > index 9c094294403f..c53ab287e932 100644 > > --- a/include/linux/prmt.h > > +++ b/include/linux/prmt.h > > @@ -1,5 +1,7 @@ > > /* SPDX-License-Identifier: GPL-2.0-only */ > > > > +#include <linux/uuid.h> > > + > > #ifdef CONFIG_ACPI_PRMT > > void init_prmt(void); > > int acpi_call_prm_handler(guid_t handler_guid, void *param_buffer); > > -- > > Hi Robert, > > This looks correct. But can you please share how you've encountered the > issue? sure, I have used it here: https://lore.kernel.org/all/20250107141015.3367194-26-rrichter@xxxxxxx/ I just included linux/prmt.h to get the declaration of acpi_call_prm_handler() without anything else. I assume other users of linux/prmt.h indirectly include linux/uuid.h with some other include file. Thanks for review, -Robert