Re: [PATCH 11/18] platform/x86: int3472: fix object shared between several modules
From: Andy Shevchenko
Date: Sun Nov 20 2022 - 08:55:36 EST
On Sat, Nov 19, 2022 at 11:08:17PM +0000, Alexander Lobakin wrote:
> common.o is linked to both intel_skl_int3472_{discrete,tps68470}:
>
> > scripts/Makefile.build:252: ./drivers/platform/x86/intel/int3472/Makefile:
> > common.o is added to multiple modules: intel_skl_int3472_discrete
> > intel_skl_int3472_tps68470
>
> Although both drivers share one Kconfig option
> (CONFIG_INTEL_SKL_INT3472), it's better to not link one object file
> into several modules (and/or vmlinux).
> Under certain circumstances, such can lead to the situation fixed by
> commit 637a642f5ca5 ("zstd: Fixing mixed module-builtin objects").
>
> Introduce the new module, intel_skl_int3472_common, to provide the
> functions from common.o to both discrete and tps68470 drivers. This
> adds only 3 exports and doesn't provide any changes to the actual
> code.
...
> +MODULE_IMPORT_NS(INTEL_SKL_INT3472);
> +
Redundant blank line. You may put it to be last MODULE_*() in the file, if you
think it would be more visible.
> MODULE_DESCRIPTION("Intel SkyLake INT3472 ACPI Discrete Device Driver");
> MODULE_AUTHOR("Daniel Scally <djrscally@xxxxxxxxx>");
> MODULE_LICENSE("GPL v2");
...
> +MODULE_IMPORT_NS(INTEL_SKL_INT3472);
> +
> MODULE_DESCRIPTION("Intel SkyLake INT3472 ACPI TPS68470 Device Driver");
> MODULE_AUTHOR("Daniel Scally <djrscally@xxxxxxxxx>");
> MODULE_LICENSE("GPL v2");
Ditto. And the same to all your patches.
--
With Best Regards,
Andy Shevchenko