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* [PATCH net-next] net: constify is_skb_forwardable's arguments
@ 2016-04-28 15:59 Nikolay Aleksandrov
  2016-04-29 20:15 ` David Miller
  0 siblings, 1 reply; 2+ messages in thread
From: Nikolay Aleksandrov @ 2016-04-28 15:59 UTC (permalink / raw)
  To: netdev; +Cc: davem, roopa, Nikolay Aleksandrov

is_skb_forwardable is not supposed to change anything so constify its
arguments

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
---
Hit this while working on the bridge per-vlan stats and needed to pass a
constified skb down. skb_is_gso() already takes a const skb.

 include/linux/netdevice.h | 3 ++-
 net/core/dev.c            | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 18d8394f2e5d..f9d573e26db3 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3260,7 +3260,8 @@ 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 6324bc9267f7..36f0170a0754 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;
 
-- 
2.4.11

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH net-next] net: constify is_skb_forwardable's arguments
  2016-04-28 15:59 [PATCH net-next] net: constify is_skb_forwardable's arguments Nikolay Aleksandrov
@ 2016-04-29 20:15 ` David Miller
  0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2016-04-29 20:15 UTC (permalink / raw)
  To: nikolay; +Cc: netdev, roopa

From: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Date: Thu, 28 Apr 2016 17:59:28 +0200

> is_skb_forwardable is not supposed to change anything so constify its
> arguments
> 
> Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

Applied, thanks.

^ permalink raw reply	[flat|nested] 2+ messages in thread

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