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8d356b89f3
android_kernel_samsung_sm8650/net/core
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Roopa Prabhu 8d356b89f3 rtnetlink: add rtnl_link_state check in rtnl_configure_link 
rtnl_configure_link sets dev->rtnl_link_state to
RTNL_LINK_INITIALIZED and unconditionally calls
__dev_notify_flags to notify user-space of dev flags.

current call sequence for rtnl_configure_link
rtnetlink_newlink
    rtnl_link_ops->newlink
    rtnl_configure_link (unconditionally notifies userspace of
                         default and new dev flags)

If a newlink handler wants to call rtnl_configure_link
early, we will end up with duplicate notifications to
user-space.

This patch fixes rtnl_configure_link to check rtnl_link_state
and call __dev_notify_flags with gchanges = 0 if already
RTNL_LINK_INITIALIZED.

Later in the series, this patch will help the following sequence
where a driver implementing newlink can call rtnl_configure_link
to initialize the link early.

makes the following call sequence work:
rtnetlink_newlink
    rtnl_link_ops->newlink (vxlan) -> rtnl_configure_link (initializes
                                                link and notifies
                                                user-space of default
                                                dev flags)
    rtnl_configure_link (updates dev flags if requested by user ifm
                         and notifies user-space of new dev flags)

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-07 20:20:46 +09:00
..
datagram.c Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
dev_addr_lists.c net: change the comment of dev_mc_init 2018-04-19 12:58:20 -04:00
dev_ioctl.c net: use dev_change_tx_queue_len() for SIOCSIFTXQLEN 2018-06-30 21:26:52 +09:00
dev.c net: limit each hash list length to MAX_GRO_SKBS 2018-07-05 19:20:16 +09:00
devlink.c devlink: Add enable_sriov boolean generic parameter 2018-07-05 19:58:35 +09:00
drop_monitor.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
dst_cache.c net: core: dst_cache_set_ip6: Rename 'addr' parameter to 'saddr' for consistency 2018-03-05 12:52:45 -05:00
dst.c net/ipv6: move metrics from dst to rt6_info 2018-04-17 23:41:16 -04:00
ethtool.c treewide: Use array_size() in vzalloc() 2018-06-12 16:19:22 -07:00
failover.c net: Introduce generic failover module 2018-05-28 22:59:54 -04:00
fib_notifier.c net: Fix fib notifer to return errno 2018-03-29 14:10:30 -04:00
fib_rules.c net: fib_rules: bring back rule_exists to match rule during add 2018-06-30 22:11:13 +09:00
filter.c net: core: filter: mark expected switch fall-through 2018-07-05 20:26:50 +09:00
flow_dissector.c ipv6: omit traffic class when calculating flow hash 2018-06-04 13:21:18 -04:00
gen_estimator.c net_sched: gen_estimator: fix broken estimators based on percpu stats 2018-02-23 12:35:46 -05:00
gen_stats.c net: sched: add support for TCQ_F_NOLOCK subqueues to sch_mq 2017-12-08 13:32:26 -05:00
gro_cells.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hwbm.c net: hwbm: Fix unbalanced spinlock in error case 2016-05-25 12:35:09 -07:00
link_watch.c net: link_watch: mark bonding link events urgent 2018-01-23 19:43:30 -05:00
lwt_bpf.c bpf: rename bpf_compute_data_end into bpf_compute_data_pointers 2017-09-26 13:36:44 -07:00
lwtunnel.c ipv6: sr: define core operations for seg6local lightweight tunnel 2017-08-07 14:16:22 -07:00
Makefile net: Introduce generic failover module 2018-05-28 22:59:54 -04:00
neighbour.c neighbour: force neigh_invalidate when NUD_FAILED update is from admin 2018-06-27 15:40:45 +09:00
net_namespace.c net: Do not take net_rwsem in __rtnl_link_unregister() 2018-03-31 22:24:58 -04:00
net-procfs.c proc: introduce proc_create_net{,_data} 2018-05-16 07:24:30 +02:00
net-sysfs.c net-sysfs: Add interface for Rx queue(s) map per Tx queue 2018-07-02 09:06:24 +09:00
net-sysfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
net-traces.c net/ipv6: Udate fib6_table_lookup tracepoint 2018-05-24 23:01:15 -04:00
netclassid_cgroup.c cgroup: add @flags to css_task_iter_start() and implement CSS_TASK_ITER_PROCS 2017-07-21 11:14:51 -04:00
netevent.c netevent: remove automatic variable in register_netevent_notifier() 2015-05-31 00:03:21 -07:00
netpoll.c netpoll: Use lockdep to assert IRQs are disabled/enabled 2017-11-08 11:13:54 +01:00
netprio_cgroup.c net: remove duplicate includes 2017-12-13 13:18:46 -05:00
page_pool.c page_pool: refurbish version of page_pool code 2018-04-17 10:50:29 -04:00
pktgen.c treewide: Use array_size() in vzalloc_node() 2018-06-12 16:19:22 -07:00
ptp_classifier.c ptp: Change ptp_class to a proper bitmask 2015-11-03 11:08:22 -05:00
request_sock.c ipv4: Namespaceify tcp_max_syn_backlog knob 2016-12-29 11:38:31 -05:00
rtnetlink.c rtnetlink: add rtnl_link_state check in rtnl_configure_link 2018-07-07 20:20:46 +09:00
scm.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/user.h> 2017-03-02 08:42:29 +01:00
secure_seq.c tcp: Namespaceify sysctl_tcp_timestamps 2017-06-08 10:53:29 -04:00
skbuff.c net: Clear skb->tstamp only on the forwarding path 2018-07-04 22:30:27 +09:00
sock_diag.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
sock_reuseport.c soreuseport: fix mem leak in reuseport_add_sock() 2018-02-02 19:47:03 -05:00
sock.c net/sched: Make etf report drops on error_queue 2018-07-04 22:30:28 +09:00
stream.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
sysctl_net_core.c headers: untangle kmemleak.h from mm.h 2018-04-05 21:36:27 -07:00
timestamping.c net: skb_defer_rx_timestamp should check for phydev before setting up classify 2015-07-09 14:17:15 -07:00
tso.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
utils.c net/utils: Introduce inet_addr_is_any 2018-03-26 08:53:43 -06:00
xdp.c rhashtable: remove nulls_base and related code. 2018-06-22 13:43:27 +09:00