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And make it selected by CONFIG_DEBUG_NET. Don't rename any of
the structs/functions. Next patch will use rtnl_net_debug_event in
netdevsim.
Reviewed-by: Jakub Kicinski <[email protected]>
Signed-off-by: Stanislav Fomichev <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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rtnl_net_debug_init() registers rtnl_net_debug_net_ops by
register_pernet_device() but calls unregister_pernet_subsys()
in case register_netdevice_notifier() fails.
It corrupts pernet_list because first_device is updated in
register_pernet_device() but not unregister_pernet_subsys().
Let's fix it by calling register_pernet_subsys() instead.
The _subsys() one fits better for the use case because it keeps
the notifier alive until default_device_exit_net(), giving it
more chance to test NETDEV_UNREGISTER.
Fixes: 03fa53485659 ("rtnetlink: Add ASSERT_RTNL_NET() placeholder for netdev notifier.")
Signed-off-by: Kuniyuki Iwashima <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Basically, dev_ifsioc() operates on the passed single netns (except
for netdev notifier chains with lower/upper devices for which we will
need more changes).
Let's hold rtnl_net_lock() for dev_ifsioc().
Now that NETDEV_CHANGENAME is always triggered under rtnl_net_lock()
of the device's netns. (do_setlink() and dev_ifsioc())
Signed-off-by: Kuniyuki Iwashima <[email protected]>
Reviewed-by: Eric Dumazet <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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kernel test robot reported section mismatch in rtnl_net_debug_exit().
WARNING: modpost: vmlinux: section mismatch in reference: rtnl_net_debug_exit+0x20 (section: .exit.text) -> rtnl_net_debug_net_ops (section: .init.data)
rtnl_net_debug_exit() uses rtnl_net_debug_net_ops() that is annotated
as __net_initdata, but this file is always built-in.
Let's remove rtnl_net_debug_exit().
Fixes: 03fa53485659 ("rtnetlink: Add ASSERT_RTNL_NET() placeholder for netdev notifier.")
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Kuniyuki Iwashima <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>
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The global and per-netns netdev notifier depend on RTNL, and its
dependency is not so clear due to nested calls.
Let's add a placeholder to place ASSERT_RTNL_NET() for each event.
Signed-off-by: Kuniyuki Iwashima <[email protected]>
Reviewed-by: Eric Dumazet <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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