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Date: Fri, 17 Nov 2023 15:51:38 +0000 From: Simon Horman <horms@...nel.org> To: Petr Machata <petrm@...dia.com> Cc: "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org, Ido Schimmel <idosch@...dia.com>, Amit Cohen <amcohen@...dia.com>, mlxsw@...dia.com, Jiri Pirko <jiri@...dia.com> Subject: Re: [PATCH net-next 06/14] devlink: Add device lock assert in reload operation On Wed, Nov 15, 2023 at 01:17:15PM +0100, Petr Machata wrote: > From: Ido Schimmel <idosch@...dia.com> > > Add an assert to verify that the device lock is always held throughout > reload operations. > > Tested the following flows with netdevsim and mlxsw while lockdep is > enabled: > > netdevsim: > > # echo "10 1" > /sys/bus/netdevsim/new_device > # devlink dev reload netdevsim/netdevsim10 > # ip netns add bla > # devlink dev reload netdevsim/netdevsim10 netns bla > # ip netns del bla > # echo 10 > /sys/bus/netdevsim/del_device > > mlxsw: > > # devlink dev reload pci/0000:01:00.0 > # ip netns add bla > # devlink dev reload pci/0000:01:00.0 netns bla > # ip netns del bla > # echo 1 > /sys/bus/pci/devices/0000\:01\:00.0/remove > # echo 1 > /sys/bus/pci/rescan > > Signed-off-by: Ido Schimmel <idosch@...dia.com> > Reviewed-by: Jiri Pirko <jiri@...dia.com> > Signed-off-by: Petr Machata <petrm@...dia.com> Reviewed-by: Simon Horman <horms@...nel.org>
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