Re: [PATCH v12 1/6] drm: Add arch arm64 for drm_clflush_virt_range

On Fri, Feb 25, 2022 at 06:42:37PM +0000, Tvrtko Ursulin wrote:

Matthew, what do you think fix for this build warning on h8300 and s390 should be? Or perhaps a build environment issue with kernel test robot?

I'd suggest this should do the job:

+++ b/include/linux/cacheflush.h @@ -4,6 +4,8 @@

#include <asm/cacheflush.h>

+struct folio; + #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE #ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO void flush_dcache_folio(struct folio *folio);