Re: [Xen-devel] [PATCH for-4.11] libacpi: fixes for iasl >= 20180427

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Wed, May 09, 2018 at 11:08:12AM +0100, Roger Pau Monne wrote:
> New versions of iasl have introduced improved C file generation, as
> reported in the changelog:
> 
> iASL: Enhanced the -tc option (which creates an AML hex file in C,
> suitable for import into a firmware project):
>   1) Create a unique name for the table, to simplify use of multiple
> SSDTs.
>   2) Add a protection #ifdef in the file, similar to a .h header file.
> 
> The net effect of that on generated files is:
> 
> -unsigned char AmlCode[] =
> +#ifndef __SSDT_S4_HEX__
> +#define __SSDT_S4_HEX__
> +
> +unsigned char ssdt_s4_aml_code[] =
> 
> The above example is from ssdt_s4.asl.
> 
> Fix the build with newer versions of iasl by stripping the '_aml_code'
> suffix from the variable name on generated files.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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