[patch net-next V6 00/15] net: introduce upper device lists and remove dev->master

From: Jiri Pirko
Date: Fri Jan 04 2013 - 03:49:06 EST

This is a V6 of a repost of my previous patchset:
"[patch net-next v2 00/15] net: introduce upper device lists and remove dev->master" from Aug 14

The discussion around
"[net-next] bonding: don't allow the master to become its slave"
forced me to think about upper<->lower device connections.

This patchset adds a possibility to record upper device linkage.
All upper<->lower devices are converted to use this mechanism right after.
That leads to dev->master removal because this info becomes redundant since
"master links" have the same value.

After all changes, there is no longer possible to do things as:

Also I think that drivers like cxgb3, qlcnic, qeth would benefit by this
in future by being able to get more appropriate info about l3 addresses.

- netdev_has_upper_dev() - added statement to comment that this is looking at
the immediate upper devices only.
- renamed "RTNL semaphore" -> "RTNL lock" in all comments
- renamed __netdev_has_upper_dev() to __netdev_search_upper_dev() to emhasize
the difference to netdev_has_upper_dev()

- fixed missed typo in drivers/infiniband/hw/nes/nes_cm.c

- comments in __netdev_upper_dev_link() squashed into one line
- kfree_rcu used instead of call_rcu in netdev_upper_dev_unlink()

- removed recursion in __netdev_has_upper_dev()
- refreshed bits to be applicable on current net-next

- s/unique/master/ better naming + stays closer to the past
- fixed vlan err goto
- original patch 15 (WARN_ON change) is squashed into the first patch

Jiri Pirko (15):
net: introduce upper device lists
macvlan: add link to upper device
vlan: add link to upper device
rtnetlink: remove usage of dev->master
team: remove usage of netdev_set_master()
bridge: remove usage of netdev_set_master()
netpoll: remove usage of dev->master
cxgb3: remove usage of dev->master
qlcnic: guard __vlan_find_dev_deep() by rcu_read_lock
qeth: ensure that __vlan_find_dev_deep() is called with rcu_read_lock
vlan: remove usage of dev->master in __vlan_find_dev_deep()
nes: remove usage of dev->master
bonding: remove usage of dev->master
net: remove no longer used netdev_set_bond_master() and
net: kill dev->master

drivers/infiniband/hw/nes/nes.c | 8 +-
drivers/infiniband/hw/nes/nes_cm.c | 2 +-
drivers/net/bonding/bond_3ad.c | 30 +--
drivers/net/bonding/bond_alb.c | 6 +-
drivers/net/bonding/bond_main.c | 94 ++++----
drivers/net/bonding/bonding.h | 14 +-
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c | 11 +-
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 2 +
drivers/net/macvlan.c | 9 +-
drivers/net/team/team.c | 13 +-
drivers/s390/net/qeth_l3_main.c | 21 +-
include/linux/netdevice.h | 22 +-
net/8021q/vlan.c | 10 +-
net/8021q/vlan_core.c | 18 +-
net/bridge/br_if.c | 6 +-
net/core/dev.c | 246 +++++++++++++++++----
net/core/netpoll.c | 9 +-
net/core/rtnetlink.c | 70 +++---
18 files changed, 409 insertions(+), 182 deletions(-)


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