Re: [PATCH v3 10/11] RFC: usb-storage: export symbols in USB_STORAGE namespace

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On Wed, Aug 21, 2019 at 12:49:25PM +0100, Matthias Maennich wrote:
> Modules using these symbols are required to explicitly import the
> namespace. This patch was generated with the following steps and serves
> as a reference to use the symbol namespace feature:
> 
>  1) Define DEFAULT_SYMBOL_NAMESPACE in the corresponding Makefile
>  2) make  (see warnings during modpost about missing imports)
>  3) make nsdeps
> 
> Instead of a DEFAULT_SYMBOL_NAMESPACE definition, the EXPORT_SYMBOL_NS
> variants can be used to explicitly specify the namespace. The advantage
> of the method used here is that newly added symbols are automatically
> exported and existing ones are exported without touching their
> respective EXPORT_SYMBOL macro expansion.

So what is USB_STORAGE here?  It isn't a C string, so where does it
come from?  To me using a C string would seem like the nicer interface
vs a random cpp symbol that gets injected somewhere.



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