diff mbox series

[lora-next,02/10] net: lora: add methods for devm registration

Message ID 1533663131-16313-4-git-send-email-ben.whitten@gmail.com
State Not Applicable, archived
Delegated to: David Miller
Headers show
Series Conversing sx1301 to regmap and regfield | expand

Commit Message

Ben Whitten Aug. 7, 2018, 5:32 p.m. UTC
From: Ben Whitten <ben.whitten@lairdtech.com>

Follow the devm model so that we can avoid lengthy unwind code.

Signed-off-by: Ben Whitten <ben.whitten@lairdtech.com>
---
 drivers/net/lora/dev.c   | 20 ++++++++++++++++++++
 include/linux/lora/dev.h |  1 +
 2 files changed, 21 insertions(+)

Comments

Andreas Färber Aug. 7, 2018, 9:25 p.m. UTC | #1
Am 07.08.2018 um 19:32 schrieb Ben Whitten:
> From: Ben Whitten <ben.whitten@lairdtech.com>
> 
> Follow the devm model so that we can avoid lengthy unwind code.
> 
> Signed-off-by: Ben Whitten <ben.whitten@lairdtech.com>
> ---
>  drivers/net/lora/dev.c   | 20 ++++++++++++++++++++
>  include/linux/lora/dev.h |  1 +
>  2 files changed, 21 insertions(+)
> 
> diff --git a/drivers/net/lora/dev.c b/drivers/net/lora/dev.c
> index 8c01106..69a8b52 100644
> --- a/drivers/net/lora/dev.c
> +++ b/drivers/net/lora/dev.c
> @@ -84,6 +84,26 @@ void free_loradev(struct net_device *dev)
>  }
>  EXPORT_SYMBOL_GPL(free_loradev);
>  
> +static void devm_lora_unregister(struct device *dev, void *res)
> +{
> +	free_loradev(*(struct net_device **)res);

Suggest to use a variable.

> +}
> +
> +int devm_lora_register_netdev(struct device *dev, struct net_device *net)

Nice idea, but why a separate registration function? Suggest to instead
introduce devm_alloc_loradev(). If you then reorder those two patches to
the front of the series, I'll queue them immediately.

Thanks,
Andreas
diff mbox series

Patch

diff --git a/drivers/net/lora/dev.c b/drivers/net/lora/dev.c
index 8c01106..69a8b52 100644
--- a/drivers/net/lora/dev.c
+++ b/drivers/net/lora/dev.c
@@ -84,6 +84,26 @@  void free_loradev(struct net_device *dev)
 }
 EXPORT_SYMBOL_GPL(free_loradev);
 
+static void devm_lora_unregister(struct device *dev, void *res)
+{
+	free_loradev(*(struct net_device **)res);
+}
+
+int devm_lora_register_netdev(struct device *dev, struct net_device *net)
+{
+	struct net_device **ptr;
+
+	ptr = devres_alloc(devm_lora_unregister, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return -ENOMEM;
+
+	*ptr = net;
+	devres_add(dev, ptr);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(devm_lora_register_netdev);
+
 static struct rtnl_link_ops lora_link_ops __read_mostly = {
 	.kind = "lora",
 	.setup = lora_setup,
diff --git a/include/linux/lora/dev.h b/include/linux/lora/dev.h
index 153f9b2..3f871c6 100644
--- a/include/linux/lora/dev.h
+++ b/include/linux/lora/dev.h
@@ -32,6 +32,7 @@  static inline int lora_strtoeui(const char *str, lora_eui *val)
 
 struct net_device *alloc_loradev(int sizeof_priv);
 void free_loradev(struct net_device *dev);
+int devm_lora_register_netdev(struct device *dev, struct net_device *net);
 int register_loradev(struct net_device *dev);
 void unregister_loradev(struct net_device *dev);
 int open_loradev(struct net_device *dev);