init_dummy_netdev() always returns zero and all the callers do not check
the returned value. Set the function to not return value, as it is not
really used today.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
---
 include/linux/netdevice.h | 2 +-
 net/core/dev.c            | 4 +---
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e87caa81f70c..c2b7083d3097 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3161,7 +3161,7 @@ static inline void unregister_netdevice(struct net_device *dev)
 int netdev_refcnt_read(const struct net_device *dev);
 void free_netdev(struct net_device *dev);
 void netdev_freemem(struct net_device *dev);
-int init_dummy_netdev(struct net_device *dev);
+void init_dummy_netdev(struct net_device *dev);
 
 struct net_device *netdev_get_xmit_slave(struct net_device *dev,
 					 struct sk_buff *skb,
diff --git a/net/core/dev.c b/net/core/dev.c
index 3950ced396b5..f64961f92ba1 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -10294,7 +10294,7 @@ EXPORT_SYMBOL(register_netdevice);
  *	that need to tie several hardware interfaces to a single NAPI
  *	poll scheduler due to HW limitations.
  */
-int init_dummy_netdev(struct net_device *dev)
+void init_dummy_netdev(struct net_device *dev)
 {
 	/* Clear everything. Note we don't initialize spinlocks
 	 * are they aren't supposed to be taken by any of the
@@ -10322,8 +10322,6 @@ int init_dummy_netdev(struct net_device *dev)
 	 * because users of this 'device' dont need to change
 	 * its refcount.
 	 */
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(init_dummy_netdev);
 
-- 
2.43.0

On Mon, Feb 05, 2024 at 12:30:22PM +0200, Amit Cohen wrote:
> init_dummy_netdev() always returns zero and all the callers do not check
> the returned value. Set the function to not return value, as it is not
> really used today.
> 
> Signed-off-by: Amit Cohen <amcohen@nvidia.com>
> Reviewed-by: Ido Schimmel <idosch@nvidia.com>
> Reviewed-by: Jiri Pirko <jiri@nvidia.com>

Reviewed-by: Simon Horman <horms@kernel.org>