On Fri, Jan 12, 2018 at 04:41:37PM -0800, Dan Williams wrote: > This certainly needs a Kconfig "depends on JUMP_LABEL" to turn on the > dynamic switching at all, and a HAVE_JUMP_LABEL compile time failure > if the compiler lacks support. We're ready to drop all compilers that don't support asm-goto on the floor for x86. So don't over engineer it just to avoid that.