From: Julia Lawall <julia.lawall@lip6.fr>
Date: Thu, 20 Jul 2017 07:49:35 +0200
Subject: staging: fsl-mc: fix resource_size.cocci warnings

Git-commit: 5be271ff96ec1a19c332bbb610662d83aa86799d
Patch-mainline: v4.14-rc1
References: fate#326530,fate#326531,fate#326535,fate#326538,fate#326539

 Use resource_size function on resource object
 instead of explicit computation.

Generated by: scripts/coccinelle/api/resource_size.cocci

Fixes: a037b7ec2eb7 ("staging: fsl-mc: allow the driver compile multi-arch")
CC: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
 drivers/staging/fsl-mc/bus/mc-io.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/fsl-mc/bus/mc-io.c b/drivers/staging/fsl-mc/bus/mc-io.c
index 4e6f99a62cf0..f65c23ce83f1 100644
--- a/drivers/staging/fsl-mc/bus/mc-io.c
+++ b/drivers/staging/fsl-mc/bus/mc-io.c
@@ -242,8 +242,7 @@ int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev,
 		goto error_cleanup_resource;
 
 	mc_portal_phys_addr = dpmcp_dev->regions[0].start;
-	mc_portal_size = dpmcp_dev->regions[0].end -
-			 dpmcp_dev->regions[0].start + 1;
+	mc_portal_size = resource_size(dpmcp_dev->regions);
 
 	if (WARN_ON(mc_portal_size != mc_bus_dev->mc_io->portal_size))
 		goto error_cleanup_resource;
-- 
2.11.0