On Fri, Feb 16, 2018 at 04:29:10PM +0100, Arnd Bergmann wrote: > When KMEMCHECK is enabled without UNWINDER_FRAME_POINTER, we get a > Kconfig warning, presumably harmless: > > warning: (FAULT_INJECTION_STACKTRACE_FILTER && LATENCYTOP && KMEMCHECK && > LOCKDEP && UNWINDER_FRAME_POINTER) selects FRAME_POINTER which has unmet > direct dependencies (DEBUG_KERNEL && (CRIS || M68K || FRV || UML || SUPERH || > BLACKFIN || MN10300 || METAG) || ARCH_WANT_FRAME_POINTERS || !UNWINDER_ORC && > !UNWINDER_GUESS) > > In newer mainline kernels, the KMEMCHECK option has been removed, so > this no longer happens. Adding the unwinder as a direct dependency > for KMEMCHECK works for 4.14-stable as well and documents the > dependency better.
4.14.y now has that option removed as well, as I just removed all of kmemcheck as it was "getting in the way" of other patches, so this isn't needed anymore. thanks, greg k-h
