[PATCH v2] SUNRPC: Add missing definition of ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE

[Bruce Fields]

On Mon, Jun 15, 2020 at 08:33:40AM -0400, Chuck Lever wrote:
> 
> 
> > On Jun 15, 2020, at 2:25 AM, Christophe Leroy <christophe.leroy at csgroup.eu> wrote:
> > 
> > Even if that's only a warning, not including asm/cacheflush.h
> > leads to svc_flush_bvec() being empty allthough powerpc defines
> > ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE.
> > 
> >  CC      net/sunrpc/svcsock.o
> > net/sunrpc/svcsock.c:227:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined [-Wundef]
> > #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
> >     ^
> > 
> > Include linux/highmem.h so that asm/cacheflush.h will be included.
> > 
> > Reported-by: Christophe Leroy <christophe.leroy at csgroup.eu>
> > Reported-by: kernel test robot <lkp at intel.com>
> > Cc: Chuck Lever <chuck.lever at oracle.com>
> > Fixes: ca07eda33e01 ("SUNRPC: Refactor svc_recvfrom()")
> > Signed-off-by: Christophe Leroy <christophe.leroy at csgroup.eu>
> 
> LGTM.
> 
> Acked-by: Chuck Lever <chuck.lever at oracle.com>

Thanks, applying for 5.8.--b.