net: constify is_skb_forwardable's arguments

is_skb_forwardable is not supposed to change anything so constify its
arguments

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 3 insertions, 2 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 934ca866562d..52914a854386 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3264,7 +3264,8 @@ struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
                                     struct netdev_queue *txq, int *ret);
 int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
 int dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
-bool is_skb_forwardable(struct net_device *dev, struct sk_buff *skb);
+bool is_skb_forwardable(const struct net_device *dev,
+                        const struct sk_buff *skb);
 
 extern int              netdev_budget;
 
diff --git a/net/core/dev.c b/net/core/dev.c
index c2f3d5dbde56..d91dfbec0fc6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1741,7 +1741,7 @@ static inline void net_timestamp_set(struct sk_buff *skb)
                         __net_timestamp(SKB);           \
         }                                               \
 
-bool is_skb_forwardable(struct net_device *dev, struct sk_buff *skb)
+bool is_skb_forwardable(const struct net_device *dev, const struct sk_buff *skb)
 {
         unsigned int len;