Mahesh Bandewar da36e13cf6 ipvlan: improvise dev_id generation logic in IPvlan ... The patch 009146d117 ("ipvlan: assign unique dev-id for each slave device.") used ida_simple_get() to generate dev_ids assigned to the slave devices. However (Eric has pointed out that) there is a shortcoming with that approach as it always uses the first available ID. This becomes a problem when a slave gets deleted and a new slave gets added. The ID gets reassigned causing the new slave to get the same link-local address. This side-effect is undesirable. This patch adds a per-port variable that keeps track of the IDs assigned and used as the stat-base for the IDR api. This base will be wrapped around when it reaches the MAX (0xFFFE) value possibly on a busy system where slaves are added and deleted routinely. Fixes: 009146d117 ("ipvlan: assign unique dev-id for each slave device.") Signed-off-by: Mahesh Bandewar <maheshb@google.com> CC: Eric Dumazet <edumazet@google.com> CC: David Miller <davem@davemloft.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-01-10 20:47:12 -05:00
..
ipvlan_core.c	driver: ipvlan: Remove unnecessary ipvlan NULL check in ipvlan_count_rx	2016-12-28 14:23:22 -05:00
ipvlan_main.c	ipvlan: improvise dev_id generation logic in IPvlan	2017-01-10 20:47:12 -05:00
ipvlan.h	ipvlan: improvise dev_id generation logic in IPvlan	2017-01-10 20:47:12 -05:00
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