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.