[PATCH v2] SUNRPC: Add missing definition of ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE

[Chuck Lever]

> 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>


> ---
> v2: Use linux/highmem.h instead of asm/cacheflush.sh
> Signed-off-by: Christophe Leroy <christophe.leroy at csgroup.eu>
> ---
> net/sunrpc/svcsock.c | 1 +
> 1 file changed, 1 insertion(+)
> 
> diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
> index 5c4ec9386f81..c537272f9c7e 100644
> --- a/net/sunrpc/svcsock.c
> +++ b/net/sunrpc/svcsock.c
> @@ -44,6 +44,7 @@
> #include <net/tcp.h>
> #include <net/tcp_states.h>
> #include <linux/uaccess.h>
> +#include <linux/highmem.h>
> #include <asm/ioctls.h>
> 
> #include <linux/sunrpc/types.h>
> -- 
> 2.25.0
> 

--
Chuck Lever