netdev - Re: [PATCH net 0/3] bonding: add port protection for bond_3ad_xxx

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Date:	Fri, 13 Dec 2013 14:26:02 -0800
From:	Jay Vosburgh <fubar@...ibm.com>
To:	Ding Tianhong <dingtianhong@...wei.com>
cc:	Andy Gospodarek <andy@...yhouse.net>,
	"David S. Miller" <davem@...emloft.net>,
	Veaceslav Falico <vfalico@...hat.com>,
	Netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net 0/3] bonding: add port protection for bond_3ad_xxx_change()

Ding Tianhong <dingtianhong@...wei.com> wrote:

>Jay Vosburgh said that the bond_3ad_adapter_speed_changed and 
>bond_3ad_adapter_duplex_changed is called with RTNL only, and
>the functions will modify the port's information with no further
>locking, they will not mutex against bond state machine and
>incoming LACPDU which do not hold RTNL, So I add port lock to
>protect the port information.
>
>But they are not critical bugs, they exist since day one, and till
>now they have never been hit and reported, because change for speed
>and duplex is very rare, and will not occur critical problem.
>
>The comments in the function is very old, cleanup the comments together.

	For entire series:

Signed-off-by: Jay Vosburgh <fubar@...ibm.com>

	-J

>Ding Tianhong (3):
>  bonding: protect port for bond_3ad_adapter_speed_changed()
>  bonding: protect port for bond_3ad_adapter_duplex_changed()
>  bonding: protect port for bond_3ad_handle_link_change()
>
> drivers/net/bonding/bond_3ad.c | 45 +++++++++++++++++++++++++++++++-----------
> 1 file changed, 33 insertions(+), 12 deletions(-)
>
>-- 
>1.8.0

---
	-Jay Vosburgh, IBM Linux Technology Center, fubar@...ibm.com

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