bonding: If IP route look-up to send an ARP fails, mark in bonding structure as no...

bonding: If IP route look-up to send an ARP fails, mark in bonding structure as no ARP sent.

During the creation of VLAN's atop bonding the underlying interfaces are
made part of VLAN's, and at the same bonding driver gets aware of that
VLAN's exists above it and hence would consult IP routing for every ARP to
be sent to determine the route which tells bonding driver the correct VLAN
tag to attach to the outgoing ARP packet. But, during the VLAN creation
when vlan driver puts the underlying interface into default vlan and actual
vlan in-between this if bonding driver consults the IP for a route, IP fails
to provide a correct route and upon which bonding driver drops the ARP
packet. ARP monitor when it comes aroung next time, sees no ARP response
and fails-over to the next available slave. To prevent this false fail-over,
when bonding dirver fails to send an ARP out it marks in its private
structure, bonding{}, not to expect an ARP response, and when ARP monitor
comes around next time ARP sending will be tried again.

(this is same as commit 7cdd940ee8d9e25c942f5479410a7d2d6ac38d09)

Orabug: 21844825

Signed-off-by: Rama Nichanamatlu <rama.nichanamatlu@oracle.com>
Signed-off-by: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>