[PATCH 1/1] acpi: Add missing RISC-V acpi_table header

[Leo Liang]

Hi Heinrich,

On Tue, Jul 25, 2023 at 09:44:00AM +0200, Heinrich Schuchardt wrote:
> On 7/25/23 04:26, Bin Meng wrote:
> > +Simon,
> > 
> > On Tue, Jul 25, 2023 at 9:30 AM Heinrich Schuchardt
> > <heinrich.schuchardt at canonical.com> wrote:
> > > 
> > > The pci_mmc.c driver can generate ACPI info and therefore includes
> > > asm/acpi_table.h. This file does not exist for the RISC-V architecture
> > > and thus code compilation fails when using this driver on RISC-V
> > 
> > Which header file includes the <asm/acpi_table.h> in pci_mmc.c?
> > 
> > I feel like we should fix the header file dependency of the driver,
> > not by adding a dummy file for random architecture.
> 
> The error is:
> 
> In file included from include/acpi/acpigen.h:13,
>                  from drivers/mmc/pci_mmc.c:15:
> include/acpi/acpi_table.h:936:10: fatal error: asm/acpi_table.h: No such
> file or directory
>   936 | #include <asm/acpi_table.h>
>       |          ^~~~~~~~~~~~~~~~~~
> 
> Currently we have:
> 
> ./arch/x86/include/asm/acpi_table.h
> ./arch/arm/include/asm/acpi_table.h
> ./arch/sandbox/include/asm/acpi_table.h
> 
> Only arch/x86/include/asm/acpi_table.h has content.
> 
> The RISC-V architecture in general supports ACPI but has some requirements
> that are different to x86.
> 
> So I think we will end up with a arch/riscv/include/asm/acpi_table.h anyway
> in the future.
> 

LGTM!

But could we also add something like what is in ./arch/sandbox/include/asm/acpi_table.h
instead of just an empty file ?

Best regards,
Leo

> Best regards
> 
> Heinrich
> 	
> > 
> > > 
> > > Create an empty include file.
> > > 
> > > Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
> > > ---
> > >   arch/riscv/include/asm/acpi_table.h | 0
> > >   1 file changed, 0 insertions(+), 0 deletions(-)
> > >   create mode 100644 arch/riscv/include/asm/acpi_table.h
> > > 
> > > diff --git a/arch/riscv/include/asm/acpi_table.h b/arch/riscv/include/asm/acpi_table.h
> > > new file mode 100644
> > > index 0000000000..e69de29bb2
> > > --
> > 
> > Regards,
> > Bin