netdev - Re: [PATCH net-next] tcp: md5: Handle RCU dereference of md5sig

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Message-Id: <20171226.172407.178317486298463341.davem@davemloft.net>
Date:   Tue, 26 Dec 2017 17:24:07 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     mathew.j.martineau@...ux.intel.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net-next] tcp: md5: Handle RCU dereference of
 md5sig_info

From: Mat Martineau <mathew.j.martineau@...ux.intel.com>
Date: Thu, 21 Dec 2017 10:29:10 -0800

> Dereference tp->md5sig_info in tcp_v4_destroy_sock() the same way it is
> done in the adjacent call to tcp_clear_md5_list().
> 
> Resolves this sparse warning:
> 
> net/ipv4/tcp_ipv4.c:1914:17: warning: incorrect type in argument 1 (different address spaces)
> net/ipv4/tcp_ipv4.c:1914:17:    expected struct callback_head *head
> net/ipv4/tcp_ipv4.c:1914:17:    got struct callback_head [noderef] <asn:4>*<noident>
> 
> Signed-off-by: Mat Martineau <mathew.j.martineau@...ux.intel.com>

Applied.