On Thu, Sep 19, 2013 at 01:21:04PM +0200, Thierry Reding wrote:

Or perhaps we can annotate the table so that the compiler will stop complaining but remove the table nonetheless if it isn't used. Similarly to what we can do with

if (IS_ENABLED(CONFIG_FOO)) { ... }

constructs. I can't really think of a way to do that, though. Perhaps gcc will throw away the table anyway, so we'll just need a way to make it shut up?

There's an annotation which can stop the unreferenced variable warning and then modern compilers are able to eliminate unreferenced static symbols. Not sure if it's actually worth the effort of doing all this though, but it is nice to be able to avoid needing multiple builds.