SUNRPC: remove "cache_request" argument in sunrpc_cache_pipe_upcall() function

Passing this pointer is redundant since it's stored on cache_detail structure,
which is also passed to sunrpc_cache_pipe_upcall () function.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
index 55bc5d1..9455270 100644
--- a/fs/nfs/dns_resolve.c
+++ b/fs/nfs/dns_resolve.c
@@ -144,7 +144,7 @@
 
 	ret = nfs_cache_upcall(cd, key->hostname);
 	if (ret)
-		ret = sunrpc_cache_pipe_upcall(cd, ch, cd->cache_request);
+		ret = sunrpc_cache_pipe_upcall(cd, ch);
 	return ret;
 }