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| H A D | rtnetlink.c | diff 68325c8c1aeb7304eb1db6b39d586875c072734e Mon Jan 08 03:41:02 CST 2024 Nicolas Dichtel <nicolas.dichtel@6wind.com> Revert "net: rtnetlink: Enslave device before bringing it up"
commit ec4ffd100ffb396eca13ebe7d18938ea80f399c3 upstream.
This reverts commit a4abfa627c3865c37e036bccb681619a50d3d93c.
The patch broke:
> ip link set dummy0 up
> ip link set dummy0 master bond0 down
This last command is useful to be able to enslave an interface with only
one netlink message.
After discussion, there is no good reason to support:
> ip link set dummy0 down
> ip link set dummy0 master bond0 up
because the bond interface already set the slave up when it is up.
Cc: stable@vger.kernel.org
Fixes: a4abfa627c38 ("net: rtnetlink: Enslave device before bringing it up")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20240108094103.2001224-2-nicolas.dichtel@6wind.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff a4abfa627c3865c37e036bccb681619a50d3d93c Wed Sep 14 10:06:23 CDT 2022 Phil Sutter <phil@nwl.cc> net: rtnetlink: Enslave device before bringing it up
Unlike with bridges, one can't add an interface to a bond and set it up
at the same time:
| # ip link set dummy0 down
| # ip link set dummy0 master bond0 up
| Error: Device can not be enslaved while up.
Of all drivers with ndo_add_slave callback, bond and team decline if
IFF_UP flag is set, vrf cycles the interface (i.e., sets it down and
immediately up again) and the others just don't care.
Support the common notion of setting the interface up after enslaving it
by sorting the operations accordingly.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20220914150623.24152-1-phil@nwl.cc
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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