linux-kernel - [PATCH net-next v12 1/5] net: export netif_open for self

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Message-ID: <20260206154246.814-2-mike.marciniszyn@gmail.com>
Date: Fri,  6 Feb 2026 10:42:41 -0500
From: mike.marciniszyn@...il.com
To: Alexander Duyck <alexanderduyck@...com>,
	Jakub Kicinski <kuba@...nel.org>,
	kernel-team@...a.com,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Russell King <linux@...linux.org.uk>,
	Jacob Keller <jacob.e.keller@...el.com>,
	Mohsin Bashir <mohsin.bashr@...il.com>,
	Lee Trager <lee@...ger.us>,
	"Mike Marciniszyn (Meta)" <mike.marciniszyn@...il.com>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	Pei Xiao <xiaopei01@...inos.cn>,
	Stanislav Fomichev <sdf@...ichev.me>,
	Kuniyuki Iwashima <kuniyu@...gle.com>,
	Samiullah Khawaja <skhawaja@...gle.com>,
	Ahmed Zaki <ahmed.zaki@...el.com>,
	Alexander Lobakin <aleksander.lobakin@...el.com>
Cc: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next v12 1/5] net: export netif_open for self_test usage

From: "Mike Marciniszyn (Meta)" <mike.marciniszyn@...il.com>

This export is required for the following fbnic self tests to
avoid calling ndo_stop() and ndo_open() in favor of the
more appropriate netif_open() and netif_close() that notifies
any listeners that the interface went down to test and is now
coming back up.

dev_open() already is exported, but drivers which use the netdev
instance lock need to use netif_open() instead. netif_close() is
also already exported [1] so this completes the pairing.

Link: https://patch.msgid.link/20250309215851.2003708-1-sdf@fomichev.me [1]
Signed-off-by: Mike Marciniszyn (Meta) <mike.marciniszyn@...il.com>
---
 net/core/dev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index 43de5af0d6ec..d1d5694d1ff0 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1724,6 +1724,7 @@ int netif_open(struct net_device *dev, struct netlink_ext_ack *extack)

 	return ret;
 }
+EXPORT_SYMBOL(netif_open);

 static void __dev_close_many(struct list_head *head)
 {
--
2.43.0