[PATCH] SUNRPC: Add missing asm/cacheflush.h

[Christophe Leroy]

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
     ^

Fixes: ca07eda33e01 ("SUNRPC: Refactor svc_recvfrom()")
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
---
 I detected this on linux-next on June 4th and warned Chuck. Seems like it went into mainline anyway.

 net/sunrpc/svcsock.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 5c4ec9386f81..d9e99cb09aab 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -45,6 +45,7 @@
 #include <net/tcp_states.h>
 #include <linux/uaccess.h>
 #include <asm/ioctls.h>
+#include <asm/cacheflush.h>
 
 #include <linux/sunrpc/types.h>
 #include <linux/sunrpc/clnt.h>
-- 
2.25.0