linux.git/net/core/rtnetlink.c, branch v4.5-rc2

net/rtnetlink: remove unused sz_idx variable

2016-01-11T05:22:20+00:00

The sz_idx variable is defined in the rtnetlink_rcv_msg(), but
not used anywhere. Let's remove it.

Signed-off-by: Alexander Kuleshov 
Signed-off-by: David S. Miller

net: Pass ndm_state to route netlink FDB notifications.

2015-12-16T23:36:46+00:00

Before this change applications monitoring FDB notifications
were not able to determine whether a new FDB entry is permament
or not:
bridge fdb add f1:f2:f3:f4:f5:f8 dev sw0p1 temp self
bridge fdb add f1:f2:f3:f4:f5:f9 dev sw0p1 self

bridge monitor fdb

f1:f2:f3:f4:f5:f8 dev sw0p1 self permanent
f1:f2:f3:f4:f5:f9 dev sw0p1 self permanent

With this change ndm_state from the original netlink message
is passed to the new netlink message sent as notification.

bridge fdb add f1:f2:f3:f4:f5:f6 dev sw0p1 self
bridge fdb add f1:f2:f3:f4:f5:f7 dev sw0p1 temp self

bridge monitor fdb
f1:f2:f3:f4:f5:f6 dev sw0p1 self permanent
f1:f2:f3:f4:f5:f7 dev sw0p1 self static

Signed-off-by: Hubert Sokolowski 
Signed-off-by: David S. Miller

switchdev: Pass original device to port netdev driver

2015-12-15T16:58:20+00:00

switchdev drivers need to know the netdev on which the switchdev op was
invoked. For example, the STP state of a VLAN interface configured on top
of a port can change while being member in a bridge. In this case, the
underlying driver should only change the STP state of that particular
VLAN and not of all the VLANs configured on the port.

However, current switchdev infrastructure only passes the port netdev down
to the driver. Solve that by passing the original device down to the
driver as part of the required switchdev object / attribute.

This doesn't entail any change in current switchdev drivers. It simply
enables those supporting stacked devices to know the originating device
and act accordingly.

Signed-off-by: Ido Schimmel 
Signed-off-by: Jiri Pirko 
Signed-off-by: David S. Miller

rtnetlink: fix frame size warning in rtnl_fill_ifinfo

2015-11-17T20:25:44+00:00

Fix the following warning:

  CC      net/core/rtnetlink.o
net/core/rtnetlink.c: In function ‘rtnl_fill_ifinfo’:
net/core/rtnetlink.c:1308:1: warning: the frame size of 2864 bytes is larger than 2048 bytes [-Wframe-larger-than=]
 }
 ^
by splitting up the huge rtnl_fill_ifinfo into some smaller ones, so we
don't have the huge frame allocations at the same time.

Cc: Eric Dumazet 
Signed-off-by: Hannes Frederic Sowa 
Acked-by: Eric Dumazet 
Signed-off-by: David S. Miller

if_link: Add control trust VF

2015-10-23T12:44:28+00:00

Add netlink directives and ndo entry to trust VF user.

This controls the special permission of VF user.
The administrator will dedicatedly trust VF user to use some features
which impacts security and/or performance.

The administrator never turn it on unless VF user is fully trusted.

CC: Sy Jong Choi 
Signed-off-by: Hiroshi Shimamoto 
Acked-by: Greg Rose 
Tested-by: Krishneil Singh 
Signed-off-by: Jeff Kirsher

netlink: Rightsize IFLA_AF_SPEC size calculation

2015-10-22T02:15:20+00:00

if_nlmsg_size() overestimates the minimum allocation size of netlink
dump request (when called from rtnl_calcit()) or the size of the
message (when called from rtnl_getlink()). This is because
ext_filter_mask is not supported by rtnl_link_get_af_size() and
rtnl_link_get_size().

The over-estimation is significant when at least one netdev has many
VLANs configured (8 bytes for each configured VLAN).

This patch-set "rightsizes" the protocol specific attribute size
calculation by propagating ext_filter_mask to rtnl_link_get_af_size()
and adding this a argument to get_link_af_size op in rtnl_af_ops.

Bridge module already used filtering aware sizing for notifications.
br_get_link_af_size_filtered() is consistent with the modified
get_link_af_size op so it replaces br_get_link_af_size() in br_af_ops.
br_get_link_af_size() becomes unused and thus removed.

Signed-off-by: Ronen Arad 
Acked-by: Sridhar Samudrala 
Signed-off-by: David S. Miller

net/core: lockdep_rtnl_is_held can be boolean

2015-10-09T14:49:06+00:00

This patch makes lockdep_rtnl_is_held return bool due to this
particular function only using either one or zero as its return
value.

In another patch lockdep_is_held is also made return bool.

No functional change.

Signed-off-by: Yaowei Bai 
Signed-off-by: David S. Miller

switchdev: rename SWITCHDEV_ATTR_* enum values to SWITCHDEV_ATTR_ID_*

2015-10-03T11:49:37+00:00

To be aligned with obj.

Signed-off-by: Jiri Pirko 
Acked-by: Scott Feldman 
Reviewed-by: Vivien Didelot 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2015-09-26T23:08:27+00:00

Conflicts:
	net/ipv4/arp.c

The net/ipv4/arp.c conflict was one commit adding a new
local variable while another commit was deleting one.

Signed-off-by: David S. Miller

rtnetlink: RTEXT_FILTER_SKIP_STATS support to avoid dumping inet/inet6 stats

2015-09-15T22:25:02+00:00

Many commonly used functions like getifaddrs() invoke RTM_GETLINK
to dump the interface information, and do not need the
the AF_INET6 statististics that are always returned by default
from rtnl_fill_ifinfo().

Computing the statistics can be an expensive operation that impacts
scaling, so it is desirable to avoid this if the information is
not needed.

This patch adds a the RTEXT_FILTER_SKIP_STATS extended info flag that
can be passed with netlink_request() to avoid statistics computation
for the ifinfo path.

Signed-off-by: Sowmini Varadhan 
Signed-off-by: David S. Miller