netdev - [PATCH 2/3] netdevice: add DEFINE_FREE() for dev

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Message-ID: <20240325233905.90fc450462e7.I1515fdc09a9f39fdbc26558556dd65a2cb03576a@changeid>
Date: Mon, 25 Mar 2024 23:31:27 +0100
From: Johannes Berg <johannes@...solutions.net>
To: netdev@...r.kernel.org
Cc: Johannes Berg <johannes.berg@...el.com>
Subject: [PATCH 2/3] netdevice: add DEFINE_FREE() for dev_put

From: Johannes Berg <johannes.berg@...el.com>

For short netdev holds within a function there are still a lot of
users of dev_put() rather than netdev_put(). Add DEFINE_FREE() to
allow making those safer.

Signed-off-by: Johannes Berg <johannes.berg@...el.com>
---
 include/linux/netdevice.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index cb37817d6382..f6c0d731fa35 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -4127,6 +4127,8 @@ static inline void dev_put(struct net_device *dev)
 	netdev_put(dev, NULL);
 }
 
+DEFINE_FREE(dev_put, struct net_device *, if (_T) dev_put(_T))
+
 static inline void netdev_ref_replace(struct net_device *odev,
 				      struct net_device *ndev,
 				      netdevice_tracker *tracker,
-- 
2.44.0