On Wed, Feb 19, 2020 at 11:11:19AM -0800, Nick Desaulniers wrote: > > Godbolt says clang is happy if it is written as: > > > > if (&__stop___trace_bprintk_fmt[0] != &__start___trace_bprintk_fmt[0]) > > > > Which is probably the best compromise. The type here is const char > > *[], so it would be a shame to see it go. > > If the "address" is never dereferenced, but only used for arithmetic > (in a way that the the pointed to type is irrelevant), does the > pointed to type matter? The type is used here: if (*pos < start_index) return __start___trace_bprintk_fmt + *pos; The return expression should be a const char ** Presumably the caller of find_next derferences it. Jason