On Tue, Apr 17, 2018 at 8:37 PM, Mark Rutland <mark.rutland@xxxxxxx> wrote: > Currently, an architecture must either implement all of the mm hooks > itself, or use all of those provided by the asm-generic implementation. > When an architecture only needs to override a single hook, it must copy > the stub implementations from the asm-generic version. > > To avoid this repetition, allow each hook to be overridden indiviually, > by placing each under an #ifndef block. As architectures providing their > own hooks can't include this file today, this shouldn't adversely affect > any existing hooks. > > Signed-off-by: Mark Rutland <mark.rutland@xxxxxxx> > Cc: Arnd Bergmann <arnd@xxxxxxxx> > Cc: linux-arch@xxxxxxxxxxxxxxx Acked-by: Arnd Bergmann <arnd@xxxxxxxx>