linux-kernel - linux-next 04 June: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE

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Date:   Fri, 5 Jun 2020 05:33:18 +0000
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Chuck Lever <chuck.lever@...cle.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     PowerPC <linuxppc-dev@...ts.ozlabs.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: linux-next 04 June: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is
 not defined

Hi all,

Getting the following warning on linux-next from yesterday,

   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
      ^

Bisected to ca07eda33e01 (refs/bisect/bad) SUNRPC: Refactor svc_recvfrom()

Missing #include <asm/cacheflush.h>

Christophe