netdev - Re: [PATCH net] net: dccp: fix kernel crash on module load

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Date:   Mon, 24 Dec 2018 15:28:15 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     posk@...gle.com
Cc:     netdev@...r.kernel.org, posk.devel@...il.com, lkp@...el.com
Subject: Re: [PATCH net] net: dccp: fix kernel crash on module load

From: Peter Oskolkov <posk@...gle.com>
Date: Mon, 24 Dec 2018 12:57:17 -0800

> Patch eedbbb0d98b2 "net: dccp: initialize (addr,port) ..."
> added calling to inet_hashinfo2_init() from dccp_init().
> 
> However, inet_hashinfo2_init() is marked as __init(), and
> thus the kernel panics when dccp is loaded as module. Removing
> __init() tag from inet_hashinfo2_init() is not feasible because
> it calls into __init functions in mm.
> 
> This patch adds inet_hashinfo2_init_mod() function that can
> be called after the init phase is done; changes dccp_init() to
> call the new function; un-marks inet_hashinfo2_init() as
> exported.
> 
> Fixes: eedbbb0d98b2 ("net: dccp: initialize (addr,port) ...")
> Reported-by: kernel test robot <lkp@...el.com>
> Signed-off-by: Peter Oskolkov <posk@...gle.com>

Applied, thanks.