[B.A.T.M.A.N.] [PATCH next] batman-adv: replace dev->trans_start update with helper

[B.A.T.M.A.N.] [PATCH next] batman-adv: replace dev->trans_start update with helper

[Sven Eckelmann]

From: Florian Westphal <fw@strlen.de>

Replace all trans_start updates with netif_trans_update helper.
change was done via spatch:

struct net_device *d;
@@
- d->trans_start = jiffies
+ netif_trans_update(d)

Compile tested only.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>
---
Warning: untested

 compat-include/linux/netdevice.h | 10 ++++++++++
 net/batman-adv/soft-interface.c  |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/compat-include/linux/netdevice.h b/compat-include/linux/netdevice.h
index f47f5c3..fb5b519 100644
--- a/compat-include/linux/netdevice.h
+++ b/compat-include/linux/netdevice.h
@@ -74,4 +74,14 @@
 
 #endif /* < KERNEL_VERSION(4, 5, 0) */
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
+
+#define netif_trans_update batadv_netif_trans_update
+static inline void batadv_netif_trans_update(struct net_device *dev)
+{
+	dev->trans_start = jiffies;
+}
+
+#endif /* < KERNEL_VERSION(4, 7, 0) */
+
 #endif	/* _NET_BATMAN_ADV_COMPAT_LINUX_NETDEVICE_H_ */
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 31d1df2..b349287 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -207,7 +207,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
 	if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
 		goto dropped;
 
-	soft_iface->trans_start = jiffies;
+	netif_trans_update(soft_iface);
 	vid = batadv_get_vid(skb, 0);
 	ethhdr = eth_hdr(skb);
 
-- 
2.8.1

Re: [B.A.T.M.A.N.] [PATCH next] batman-adv: replace dev->trans_start update with helper

[Antonio Quartulli]

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On Thu, May 05, 2016 at 09:44:42AM +0200, Sven Eckelmann wrote:
> From: Florian Westphal <fw@strlen.de>
> 
> Replace all trans_start updates with netif_trans_update helper.
> change was done via spatch:
> 
> struct net_device *d;
> @@
> - d->trans_start = jiffies
> + netif_trans_update(d)
> 
> Compile tested only.
> 
> Signed-off-by: Florian Westphal <fw@strlen.de>
> Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>
> ---
> Warning: untested
> 
>  compat-include/linux/netdevice.h | 10 ++++++++++
>  net/batman-adv/soft-interface.c  |  2 +-
>  2 files changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/compat-include/linux/netdevice.h b/compat-include/linux/netdevice.h
> index f47f5c3..fb5b519 100644
> --- a/compat-include/linux/netdevice.h
> +++ b/compat-include/linux/netdevice.h
> @@ -74,4 +74,14 @@
>  
>  #endif /* < KERNEL_VERSION(4, 5, 0) */
>  
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
> +
> +#define netif_trans_update batadv_netif_trans_update
> +static inline void batadv_netif_trans_update(struct net_device *dev)

Sven,

do we really need to rename the function is the original one does not exist in
kernels < 4.7 ? Or maybe it exists but does something else ?

Cheers,


-- 
Antonio Quartulli

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Re: [B.A.T.M.A.N.] [PATCH next] batman-adv: replace dev->trans_start update with helper

[Sven Eckelmann]

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On Thursday 05 May 2016 18:04:35 Antonio Quartulli wrote:
[...]
> > 
> > +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
> > +
> > +#define netif_trans_update batadv_netif_trans_update
> > +static inline void batadv_netif_trans_update(struct net_device *dev)
> 
> Sven,
> 
> do we really need to rename the function is the original one does not exist
> in kernels < 4.7 ? Or maybe it exists but does something else ?

Not necessarily but Linus' noticed for a different function that some distros 
(or stable maintainers) backported the function which we introduced. Thus we 
used the same trick to solve the conflict.

Kind regards,
	Sven

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Re: [B.A.T.M.A.N.] [PATCH next] batman-adv: replace dev->trans_start update with helper

[Antonio Quartulli]

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On Thu, May 05, 2016 at 12:36:54PM +0200, Sven Eckelmann wrote:
> On Thursday 05 May 2016 18:04:35 Antonio Quartulli wrote:
> [...]
> > > 
> > > +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
> > > +
> > > +#define netif_trans_update batadv_netif_trans_update
> > > +static inline void batadv_netif_trans_update(struct net_device *dev)
> > 
> > Sven,
> > 
> > do we really need to rename the function is the original one does not exist
> > in kernels < 4.7 ? Or maybe it exists but does something else ?
> 
> Not necessarily but Linus' noticed for a different function that some distros 
> (or stable maintainers) backported the function which we introduced. Thus we 
> used the same trick to solve the conflict.

Yup, thanks for reminding!

Cheers,



-- 
Antonio Quartulli

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Re: [B.A.T.M.A.N.] [PATCH next] batman-adv: replace dev->trans_start update with helper

[Marek Lindner]

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On Thursday, May 05, 2016 09:44:42 Sven Eckelmann wrote:
> From: Florian Westphal <fw@strlen.de>
> 
> Replace all trans_start updates with netif_trans_update helper.
> change was done via spatch:
> 
> struct net_device *d;
> @@
> - d->trans_start = jiffies
> + netif_trans_update(d)
> 
> Compile tested only.
> 
> Signed-off-by: Florian Westphal <fw@strlen.de>
> Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>
> ---
> Warning: untested
> 
>  compat-include/linux/netdevice.h | 10 ++++++++++
>  net/batman-adv/soft-interface.c  |  2 +-
>  2 files changed, 11 insertions(+), 1 deletion(-)

Applied in revision c5ebb1b.

Thanks,
Marek

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