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Date: Thu, 16 Jan 2020 05:31:07 -0800 (PST) From: David Miller <davem@...emloft.net> To: madhuparnabhowmik04@...il.com Cc: gregkh@...uxfoundation.org, paulmck@...nel.org, joel@...lfernandes.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, rcu@...r.kernel.org, frextrite@...il.com Subject: Re: [PATCH] net: wan: lapbether.c: Use built-in RCU list checking From: madhuparnabhowmik04@...il.com Date: Wed, 15 Jan 2020 17:11:01 +0530 > From: Madhuparna Bhowmik <madhuparnabhowmik04@...il.com> > > The only callers of the function lapbeth_get_x25_dev() > are lapbeth_rcv() and lapbeth_device_event(). > > lapbeth_rcv() uses rcu_read_lock() whereas lapbeth_device_event() > is called with RTNL held (As mentioned in the comments). > > Therefore, pass lockdep_rtnl_is_held() as cond argument in > list_for_each_entry_rcu(); > > Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik04@...il.com> Applied.
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