[PATCH net-next 2/2] net/smc: use an array to check fields in system EID

[Karsten Graul <kgraul@linux.ibm.com>]

The check for old hardware versions that did not have SMCDv2 support was
using suspicious pointer magic. Address the fields using an array.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
---
 net/smc/smc_ism.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/smc/smc_ism.c b/net/smc/smc_ism.c
index e9a6487a42cb..6abbdd09a580 100644
--- a/net/smc/smc_ism.c
+++ b/net/smc/smc_ism.c
@@ -335,7 +335,7 @@ int smcd_register_dev(struct smcd_dev *smcd)
 		u8 *system_eid = NULL;
 
 		smc_ism_get_system_eid(smcd, &system_eid);
-		if ((*system_eid) + 24 != '0' || (*system_eid) + 28 != '0')
+		if (system_eid[24] != '0' || system_eid[28] != '0')
 			smc_ism_v2_capable = true;
 	}
 	/* sort list: devices without pnetid before devices with pnetid */
-- 
2.17.1