[PATCH net-next 3/4] net: dsa: make dsa_slave_dev_check use const

[Vivien Didelot <vivien.didelot@gmail.com>]

The switchdev handle helpers make use of a device checking helper
requiring a const net_device. Make dsa_slave_dev_check compliant
to this.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
---
 net/dsa/slave.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 289a6aa4b51c..cb436a05c9a8 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -22,7 +22,7 @@
 
 #include "dsa_priv.h"
 
-static bool dsa_slave_dev_check(struct net_device *dev);
+static bool dsa_slave_dev_check(const struct net_device *dev);
 
 /* slave mii_bus handling ***************************************************/
 static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg)
@@ -1408,7 +1408,7 @@ void dsa_slave_destroy(struct net_device *slave_dev)
 	free_netdev(slave_dev);
 }
 
-static bool dsa_slave_dev_check(struct net_device *dev)
+static bool dsa_slave_dev_check(const struct net_device *dev)
 {
 	return dev->netdev_ops == &dsa_slave_netdev_ops;
 }
-- 
2.21.0