On Sun, Feb 12, 2023 at 05:51:18PM +0200, Mike Rapoport wrote: > On Sat, Feb 11, 2023 at 03:39:45AM +0000, Matthew Wilcox (Oracle) wrote: > > Current best practice is to reuse the name of the function as a define > > to indicate that the function is implemented by the architecture. > > > > Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> > > --- > > include/linux/cacheflush.h | 4 ++-- > > mm/util.c | 2 +- > > I'd expect a change in arch/ that removes > ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO and adds #define flush_dcache_folio > > What am I missing? That not a single architecture got round to implementing flush_dcache_folio() yet ;-) $ git grep ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO arch (nothing)