Make the behaviour similar to ipv4. This will allow user to set sysctl
default neigh param values and these values will be respected even by
devices registered before (that ones what do not have address set yet).
Signed-off-by: Jiri Pirko <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
BugLink: https://bugs.launchpad.net/bugs/994931
Signed-off-by: Kamal Mostafa <email address hidden>
Previously inet devices were only constructed when addresses are added.
Therefore the default neigh parms values they get are the ones at the
time of these operations.
Now that we're creating inet devices earlier, this changes the behaviour
of default neigh parms values in an incompatible way (see bug #8519).
This patch creates a compromise by setting the default values at the
same point as before but only for those that have not been explicitly
set by the user since the inet device's creation.
Introduced by:
commit 8030f54499925d073a88c09f30d5d844fb1b3190
Author: Herbert Xu <email address hidden>
Date: Thu Feb 22 01:53:47 2007 +0900
[IPV4] devinet: Register inetdev earlier.
Signed-off-by: Jiri Pirko <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
BugLink: https://bugs.launchpad.net/bugs/994931
Signed-off-by: Kamal Mostafa <email address hidden>
This patch converts the neigh param members to an array. This allows easier
manipulation which will be needed later on to provide better management of
default values.
Signed-off-by: Jiri Pirko <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
BugLink: https://bugs.launchpad.net/bugs/994931
Signed-off-by: Kamal Mostafa <email address hidden>
Revert "UBUNTU: SAUCE: (no-up) ipv6: make the net.ipv6.conf.all.use_tempaddr sysctl propagate to interface settings"
This reverts commit c999e7dff4570e4c28a0953e7189c0c31343ce62.
To be replaced by mainline commit bba24896f022d4d239494bebf18e713cd8aec7a5
"neigh: ipv6: respect default values set before an address is assigned to
device".
This reverts commit 9e113accc7c636b46ff9175fda1f8ffcfbf544ef.
To be replaced by mainline commit bba24896f022d4d239494bebf18e713cd8aec7a5
"neigh: ipv6: respect default values set before an address is assigned to
device".
powerpc/pseries: use pci_host_bridge.release_fn() to kfree(phb)
This patch leverages 'struct pci_host_bridge' from the PCI subsystem
in order to free the pci_controller only after the last reference to
its devices is dropped (avoiding an oops in pcibios_release_device()
if the last reference is dropped after pcibios_free_controller()).
The patch relies on pci_host_bridge.release_fn() (and .release_data),
which is called automatically by the PCI subsystem when the root bus
is released (i.e., the last reference is dropped). Those fields are
set via pci_set_host_bridge_release() (e.g. in the platform-specific
implementation of pcibios_root_bridge_prepare()).
It introduces the 'pcibios_free_controller_deferred()' .release_fn()
and it expects .release_data to hold a pointer to the pci_controller.
The function implictly calls 'pcibios_free_controller()', so an user
must *NOT* explicitly call it if using the new _deferred() callback.
The functionality is enabled for pseries (although it isn't platform
specific, and may be used by cxl).
Details on not-so-elegant design choices:
- Use 'pci_host_bridge.release_data' field as pointer to associated
'struct pci_controller' so *not* to 'pci_bus_to_host(bridge->bus)'
in pcibios_free_controller_deferred().
That's because pci_remove_root_bus() sets 'host_bridge->bus = NULL'
(so, if the last reference is released after pci_remove_root_bus()
runs, which eventually reaches pcibios_free_controller_deferred(),
that would hit a null pointer dereference).
The cxl/vphb.c code calls pci_remove_root_bus(), and the cxl folks
are interested in this fix.
