Re: [RFC][PATCH] rcu in drivers/net/hamradio

[Herbert Xu]

Suzanne Wood <suzannew@xxxxxxxxxx> wrote:
> 
> (3) bpq_free_device() calls list_del_rcu() which, according 
> to list.h, requires synchronize_rcu() which can block or 
> call_rcu() or call_rcu_bh() which cannot block. 
> None of these is called anywhere in the directory drivers/net,
> so synchronize_irq() may address this.  
> (synchronize_sched() is called in drivers/net/sis190.c and 
> r8169.c with FIXME comment about synchronize_irq().)

The synchronisation is carried out by unregister_netdevice.

Cheers,
-- 
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