[PATCH] nvmem: rmem: fix undefined reference to memremap

[Srinivas Kandagatla]

Fix below error reporte by kernel test robot
rmem.c:(.text+0x14e): undefined reference to memremap
s390x-linux-gnu-ld: rmem.c:(.text+0x1b6): undefined reference to memunmap

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
---
 drivers/nvmem/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig
index 642ddc699fd1..dd2019006838 100644
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -272,6 +272,7 @@ config SPRD_EFUSE
 
 config NVMEM_RMEM
 	tristate "Reserved Memory Based Driver Support"
+	depends on HAS_IOMEM
 	help
 	  This driver maps reserved memory into an nvmem device. It might be
 	  useful to expose information left by firmware in memory.
-- 
2.21.0