Comment # 1 on bug 1196279 from Jiri Slaby

(In reply to Jiri Slaby from comment #0)
> Created attachment 856404 [details]
> one preprocessed example

That's useless as the interesting parts are gone.

Maybe it's __diagnose_as which is causing the recursion, defined in
include/linux/compiler_attributes.h as:
#if __has_attribute(__diagnose_as_builtin__)
# define __diagnose_as(builtin...)     
__attribute__((__diagnose_as_builtin__(builtin)))
#else
# define __diagnose_as(builtin...)
#endif