Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit af073393 authored by Frederic Weisbecker's avatar Frederic Weisbecker Committed by Ingo Molnar
Browse files

netpoll: Use lockdep to assert IRQs are disabled/enabled 



Use lockdep to check that IRQs are enabled or disabled as expected. This
way the sanity check only shows overhead when concurrency correctness
debug code is enabled.

Signed-off-by: default avatarFrederic Weisbecker <frederic@kernel.org>
Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/1509980490-4285-14-git-send-email-frederic@kernel.org


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent a6968220

net/core/netpoll.c

+1 −1
Original line number Diff line number Diff line
@@ -334,7 +334,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb, 
	/* It is up to the caller to keep npinfo alive. */

	struct netpoll_info *npinfo;



	WARN_ON_ONCE(!irqs_disabled());

	lockdep_assert_irqs_disabled();



	npinfo = rcu_dereference_bh(np->dev->npinfo);

	if (!npinfo || !netif_running(dev) || !netif_device_present(dev)) {