net/cadence: depend on HAS_IOMEM

Fixes the following build failure on S390:
  In file included from drivers/net/ethernet/cadence/at91_ether.c:35:0:
   drivers/net/ethernet/cadence/macb.h: In function 'macb_is_gem':
   drivers/net/ethernet/cadence/macb.h:563:2: error: implicit declaration of function '__raw_readl' [-Werror=implicit-function-declaration]
   drivers/net/ethernet/cadence/at91_ether.c: In function 'update_mac_address':
   drivers/net/ethernet/cadence/at91_ether.c:119:2: error: implicit declaration of function '__raw_writel' [-Werror=implicit-function-declaration]
   cc1: some warnings being treated as errors

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/cadence/Kconfig b/drivers/net/ethernet/cadence/Kconfig
index 40172d1ca605636ce4dc1103937245857fab376b..ceb0de0cf62c6e4f2dffcc0c650f256dd8adbbf1 100644 (file)
--- a/drivers/net/ethernet/cadence/Kconfig
+++ b/drivers/net/ethernet/cadence/Kconfig
@@ -4,6 +4,7 @@
 
 config NET_CADENCE
        bool "Cadence devices"
+       depends on HAS_IOMEM
        default y
        ---help---
          If you have a network (Ethernet) card belonging to this class, say Y.