From: Steffen Klassert <steffen.klassert@secunet.com>
To: Su Yanjun <suyj.fnst@cn.fujitsu.com>
Cc: <davem@davemloft.net>, <fw@strlen.de>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3] net: xfrm: Add '_rcu' tag for rcu protected pointer in netns_xfrm
Date: Mon, 11 Mar 2019 11:10:06 +0100 [thread overview]
Message-ID: <20190311101006.GK3758@gauss3.secunet.de> (raw)
In-Reply-To: <1551923648-17656-1-git-send-email-suyj.fnst@cn.fujitsu.com>
On Wed, Mar 06, 2019 at 08:54:08PM -0500, Su Yanjun wrote:
> For rcu protected pointers, we'd better add '__rcu' for them.
>
> Once added '__rcu' tag for rcu protected pointer, the sparse tool reports
> warnings.
>
> net/xfrm/xfrm_user.c:1198:39: sparse: expected struct sock *sk
> net/xfrm/xfrm_user.c:1198:39: sparse: got struct sock [noderef] <asn:4> *nlsk
> [...]
>
> So introduce a new wrapper function of nlmsg_unicast to handle type
> conversions.
>
> This patch also fixes a direct access of a rcu protected socket.
>
> Fixes: be33690d8fcf("[XFRM]: Fix aevent related crash")
> Signed-off-by: Su Yanjun <suyj.fnst@cn.fujitsu.com>
Patch applied, thanks!
next prev parent reply other threads:[~2019-03-11 10:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-07 1:54 Su Yanjun
2019-03-11 10:10 ` Steffen Klassert [this message]
2019-03-18 17:22 ` Eric Dumazet
2019-03-19 15:15 ` Steffen Klassert
2019-03-19 15:52 ` Eric Dumazet
2019-03-20 0:53 ` Su Yanjun <suyj.fnst@cn.fujitsu.com>
2019-03-20 17:16 ` Steffen Klassert
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