Hi Sinan,
On 03/02/2016 07:34 PM, Sinan Kaya wrote:
> On 2/26/2016 12:15 PM, Eric Auger wrote:
>>> -module_init(reset ## _module_init); \
>>>> +#define module_vfio_reset_handler(compat, acpihid, reset) \
>>>> +MODULE_ALIAS("vfio-reset:" compat); \
>> Here you need to handle alias for hid case I think
>
> I'm wondering what happens when Compat or ACPI string is NULL.
>
> MODULE_ALIAS("vfio-reset:" NULL)
>
> Would the kernel like it?
>
> I'd rather create an alias only when the string is not NULL. Given
> this is a macro, I believe it won't work.
Indeed I think we should create an alias only for the supported case or
2 aliases if both are supported.
>
> Can you think of any other way in the code to create the alias?
>
To be honest I did not find any elegant solution either. Personally I
would move the MODULE_ALIAS for compat/acpihid outside of
module_vfio_reset_handler macro, directly in the reset module. But maybe
someone will propose a better solution?
Best Regards
Eric
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