linux-kernel - Re: [PATCH v2] SUNRPC: Add missing definition of ARCH_IMPLEMENTS_FLUSH_DCACHE

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Date:   Thu, 25 Jun 2020 16:40:29 -0400
From:   Bruce Fields <bfields@...ldses.org>
To:     Chuck Lever <chuck.lever@...cle.com>
Cc:     Christophe Leroy <christophe.leroy@...roup.eu>,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Anna Schumaker <anna.schumaker@...app.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        netdev <netdev@...r.kernel.org>,
        Linux NFS Mailing List <linux-nfs@...r.kernel.org>,
        linuxppc-dev@...ts.ozlabs.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] SUNRPC: Add missing definition of
 ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE

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@...roup.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@...roup.eu>
> > Reported-by: kernel test robot <lkp@...el.com>
> > Cc: Chuck Lever <chuck.lever@...cle.com>
> > Fixes: ca07eda33e01 ("SUNRPC: Refactor svc_recvfrom()")
> > Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
> 
> LGTM.
> 
> Acked-by: Chuck Lever <chuck.lever@...cle.com>

Thanks, applying for 5.8.--b.