It is currently difficult to read the different steps involved in the
setup and teardown of ports in the DSA code. Keep it simple with a
single switch statement for each port type: UNUSED, CPU, DSA, or USER.

Also no need to call devlink_port_unregister from within dsa_port_setup
as this step is inconditionally handled by dsa_port_teardown on error.
Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Move the tx bottom function from NAPI to a new tasklet. Then, for
multi-cores, the bottom functions of tx and rx may be run at same
time with different cores. This is used to improve performance.

On x86, Tx/Rx 943/943 Mbits/sec -> 945/944.
For arm platform, Tx/Rx: 917/917 Mbits/sec -> 933/933.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Merge tag 'wireless-drivers-next-for-davem-2019-08-19' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 5.4

First set of patches for 5.4.

Major changes:

brcmfmac

* enable 160 MHz channel support

rt2x00

* add support for PLANEX GW-USMicroN USB device

rtw88

* add Bluetooth coexistance support
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Xin Long says:

====================
sctp: support per endpoint auth and asconf flags

This patchset mostly does 3 things:

  1. add per endpint asconf flag and use asconf flag properly
     and add SCTP_ASCONF_SUPPORTED sockopt.
  2. use auth flag properly and add SCTP_AUTH_SUPPORTED sockopt.
  3. remove the 'global feature switch' to discard chunks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

The netns sctp feature flags shouldn't work as a global switch,
which is mostly like a firewall/netfilter's job. Also, it will
break asoc as it discard or accept chunks incorrectly when net
sctp.x_enable is changed after the asoc is created.

Since each type of chunk's processing function will check the
corresp asoc's feature flag, this 'global switch' should be
removed, and net sctp.x_enable will only work as the default
feature flags for the future sctp sockets/endpoints.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

SCTP_AUTH_SUPPORTED sockopt is used to set enpoint's auth
flag. With this feature, each endpoint will have its own
flag for its future asoc's auth_capable, instead of netns
auth flag.

Note that when both ep's auth_enable is enabled, endpoint
auth related data should be initialized. If asconf_enable
is also set, SCTP_CID_ASCONF/SCTP_CID_ASCONF_ACK should
be added into auth_chunk_list.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch is to factor out sctp_auth_init and sctp_auth_free
functions, and sctp_auth_init will also be used in the next
patch for SCTP_AUTH_SUPPORTED sockopt.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

sctp has per endpoint auth flag and per asoc auth flag, and
the asoc one should be checked when coming to asoc and the
endpoint one should be checked when coming to endpoint.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

SCTP_ASCONF_SUPPORTED sockopt is used to set enpoint's asconf
flag. With this feature, each endpoint will have its own flag
for its future asoc's asconf_capable, instead of netns asconf
flag.

Note that when both ep's asconf_enable and auth_enable are
enabled, SCTP_CID_ASCONF and SCTP_CID_ASCONF_ACK should be
added into auth_chunk_list.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

asconf chunks should be dropped when the asoc doesn't support
asconf feature.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

asoc->peer.asconf_capable is to be set during handshake, and its
value should be initialized to 0. net->sctp.addip_noauth will be
checked in sctp_process_init when processing INIT_ACK on client
and COOKIE_ECHO on server.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch is to make addip/asconf flag per endpoint,
and its value is initialized by the per netns flag,
net->sctp.addip_enable.

It also replaces the checks of net->sctp.addip_enable
with ep->asconf_enable in some places.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Pointer members of an object with static storage duration, if not
explicitly initialized, will be initialized to a NULL pointer. The
net namespace API checks if this pointer is not NULL before using it,
it are safe to remove the function.
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Vlad Buslov says:

====================
Fix problems with using ns plugin

Recent changes to plugin architecture broke some of the tests when running tdc
without specifying a test group. Fix tests incompatible with ns plugin and
modify tests to not reuse interface name of ns veth interface for dummy
interface.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Concurrent tests use several commands to update rules in parallel: 'find'
prints names of batch files in tmp directory and pipes result to 'xargs'
which runs instance of tc per batch file in parallel. This breaks when used
with ns plugin that adds 'ip netns exec $NS' prefix to the command, which
causes only first command in pipe to be executed in namespace:

=====> Test e41d: Add 1M flower filters with 10 parallel tc instances
-----> prepare stage
ns/SubPlugin.adjust_command
adjust_command:  stage is setup; inserting netns stuff in command [/bin/mkdir tmp] list [['/bin/mkdir', 'tmp']]
adjust_command:  return command [ip netns exec tcut /bin/mkdir tmp]
command "ip netns exec tcut /bin/mkdir tmp"
ns/SubPlugin.adjust_command
adjust_command:  stage is setup; inserting netns stuff in command [/sbin/tc qdisc add dev ens1f0 ingress] list [['/sbin/tc', 'qdisc', 'add', 'dev', 'ens1f0', 'ingress']]
adjust_command:  return command [ip netns exec tcut /sbin/tc qdisc add dev ens1f0 ingress]
command "ip netns exec tcut /sbin/tc qdisc add dev ens1f0 ingress"
ns/SubPlugin.adjust_command
adjust_command:  stage is setup; inserting netns stuff in command [./tdc_multibatch.py ens1f0 tmp 100000 10 add] list [['./tdc_multibatch.py', 'ens1f0', 'tmp', '100000', '10', 'add']]
adjust_command:  return command [ip netns exec tcut ./tdc_multibatch.py ens1f0 tmp 100000 10 add]
command "ip netns exec tcut ./tdc_multibatch.py ens1f0 tmp 100000 10 add"
-----> execute stage
ns/SubPlugin.adjust_command
adjust_command:  stage is execute; inserting netns stuff in command [find tmp/add* -print | xargs -n 1 -P 10 /sbin/tc -b] list [['find', 'tmp/add*', '-print', '|', 'xargs', '-n', '1', '-P', '10', '/sbin/tc', '-b']
]
adjust_command:  return command [ip netns exec tcut find tmp/add* -print | xargs -n 1 -P 10 /sbin/tc -b]
command "ip netns exec tcut find tmp/add* -print | xargs -n 1 -P 10 /sbin/tc -b"
exit: 123
exit: 0
Cannot find device "ens1f0"
Cannot find device "ens1f0"
Command failed tmp/add_0:1
Command failed tmp/add_1:1
Cannot find device "ens1f0"
Command failed tmp/add_2:1
Cannot find device "ens1f0"
Command failed tmp/add_4:1
Cannot find device "ens1f0"
Command failed tmp/add_3:1
Cannot find device "ens1f0"
Command failed tmp/add_5:1
Cannot find device "ens1f0"
Command failed tmp/add_6:1
Cannot find device "ens1f0"
Command failed tmp/add_8:1
Cannot find device "ens1f0"
Command failed tmp/add_7:1
Cannot find device "ens1f0"
Command failed tmp/add_9:1

Fix the issue by executing whole compound command in namespace by wrapping
it in 'bash -c' invocation.

Fixes: 489ce2f4 ("tc-testing: Restore original behaviour for namespaces in tdc")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

A lot of tests reuse $DEV1 veth name for naming dummy device. This causes
problem when tdc is invoked without specifying a test group and tries to
execute all tests. In this case tdc instantiates ns plugin, which creates
veth pair once before running tests. However, if any of the tests that
reuse $DEV1 run before test that depend on ns plugin, it will delete $DEV1
as a part of teardown section:

=====> Test 3b88: Delete ingress qdisc twice                                                                                                                                                             [3770/41080]
-----> prepare stage
ns/SubPlugin.adjust_command
adjust_command:  stage is setup; inserting netns stuff in command [/sbin/ip link add dev v0p1 type dummy || /bin/true] list [['/sbin/ip', 'link', 'add', 'dev', 'v0p1', 'type', 'dummy', '||', '/bin/true']]
adjust_command:  return command [ip netns exec tcut /sbin/ip link add dev v0p1 type dummy || /bin/true]
command "ip netns exec tcut /sbin/ip link add dev v0p1 type dummy || /bin/true"
ns/SubPlugin.adjust_command
adjust_command:  stage is setup; inserting netns stuff in command [/sbin/tc qdisc add dev v0p1 ingress] list [['/sbin/tc', 'qdisc', 'add', 'dev', 'v0p1', 'ingress']]
adjust_command:  return command [ip netns exec tcut /sbin/tc qdisc add dev v0p1 ingress]
command "ip netns exec tcut /sbin/tc qdisc add dev v0p1 ingress"
ns/SubPlugin.adjust_command
adjust_command:  stage is setup; inserting netns stuff in command [/sbin/tc qdisc del dev v0p1 ingress] list [['/sbin/tc', 'qdisc', 'del', 'dev', 'v0p1', 'ingress']]
adjust_command:  return command [ip netns exec tcut /sbin/tc qdisc del dev v0p1 ingress]
command "ip netns exec tcut /sbin/tc qdisc del dev v0p1 ingress"
-----> execute stage
ns/SubPlugin.adjust_command
adjust_command:  stage is execute; inserting netns stuff in command [/sbin/tc qdisc del dev v0p1 ingress] list [['/sbin/tc', 'qdisc', 'del', 'dev', 'v0p1', 'ingress']]
adjust_command:  return command [ip netns exec tcut /sbin/tc qdisc del dev v0p1 ingress]
command "ip netns exec tcut /sbin/tc qdisc del dev v0p1 ingress"
-----> verify stage
ns/SubPlugin.adjust_command
adjust_command:  stage is verify; inserting netns stuff in command [/sbin/tc qdisc show dev v0p1] list [['/sbin/tc', 'qdisc', 'show', 'dev', 'v0p1']]
adjust_command:  return command [ip netns exec tcut /sbin/tc qdisc show dev v0p1]
command "ip netns exec tcut /sbin/tc qdisc show dev v0p1"
-----> teardown stage
ns/SubPlugin.adjust_command
adjust_command:  stage is teardown; inserting netns stuff in command [/sbin/ip link del dev v0p1 type dummy] list [['/sbin/ip', 'link', 'del', 'dev', 'v0p1', 'type', 'dummy']]
adjust_command:  return command [ip netns exec tcut /sbin/ip link del dev v0p1 type dummy]
command "ip netns exec tcut /sbin/ip link del dev v0p1 type dummy"

After this ns-dependent tests will fail because dev doesn't exist:

=====> Test 901f: Add fw filter with prio at 32-bit maxixum
-----> prepare stage
ns/SubPlugin.adjust_command
adjust_command:  stage is setup; inserting netns stuff in command [/sbin/tc qdisc add dev v0p1 ingress] list [['/sbin/tc', 'qdisc', 'add', 'dev', 'v0p1', 'ingress']]
adjust_command:  return command [ip netns exec tcut /sbin/tc qdisc add dev v0p1 ingress]
command "ip netns exec tcut /sbin/tc qdisc add dev v0p1 ingress"

-----> prepare stage *** Could not execute: "$TC qdisc add dev $DEV1 ingress"

-----> prepare stage *** Error message: "Cannot find device "v0p1"
"
returncode 1; expected [0]

-----> prepare stage *** Aborting test run.

<_io.BufferedReader name=3> *** stdout ***

<_io.BufferedReader name=5> *** stderr ***
"-----> prepare stage" did not complete successfully
Exception <class '__main__.PluginMgrTestFail'> ('setup', None, '"-----> prepare stage" did not complete successfully') (caught in test_runner, running test 477 901f Add fw filter with prio at 32-bit maxixum stage
setup)
---------------
traceback
  File "./tdc.py", line 371, in test_runner
    res = run_one_test(pm, args, index, tidx)
  File "./tdc.py", line 272, in run_one_test
    prepare_env(args, pm, 'setup', "-----> prepare stage", tidx["setup"])
  File "./tdc.py", line 247, in prepare_env
    '"{}" did not complete successfully'.format(prefix))
---------------

Fix the issue by introducing standalone $DUMMY config variable and
substitute all usage of $DEV1 in tests that don't depend on ns plugin.

Fixes: 489ce2f4 ("tc-testing: Restore original behaviour for namespaces in tdc")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Fix accessing skb after napi_gro_receive which is caused by
commit 47922fcd ("r8152: support skb_add_rx_frag").

Fixes: 47922fcd ("r8152: support skb_add_rx_frag")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Heiner Kallweit says:

====================
net: phy: realtek: support NBase-T MMD EEE registers on RTL8125

Add missing EEE-related constants, including the new MMD EEE registers
for NBase-T / 802.3bz. Based on that emulate the new 802.3bz MMD EEE
registers for 2.5Gbps EEE on RTL8125.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Emulate the 802.3bz MMD EEE registers for 2.5Gbps EEE on RTL8125.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add EEE-related constants. This includes the new MMD EEE registers for
NBase-T / 802.3bz.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

RCU list block_ing_cb_list is protected by rcu read lock in
flow_block_ing_cmd() and with flow_indr_block_ing_cb_lock mutex in all
functions that use it. However, flow_block_ing_cmd() needs to call blocking
functions while iterating block_ing_cb_list which leads to following
suspicious RCU usage warning:

[  401.510948] =============================
[  401.510952] WARNING: suspicious RCU usage
[  401.510993] 5.3.0-rc3+ #589 Not tainted
[  401.510996] -----------------------------
[  401.511001] include/linux/rcupdate.h:265 Illegal context switch in RCU read-side critical section!
[  401.511004]
               other info that might help us debug this:

[  401.511008]
               rcu_scheduler_active = 2, debug_locks = 1
[  401.511012] 7 locks held by test-ecmp-add-v/7576:
[  401.511015]  #0: 00000000081d71a5 (sb_writers#4){.+.+}, at: vfs_write+0x166/0x1d0
[  401.511037]  #1: 000000002bd338c3 (&of->mutex){+.+.}, at: kernfs_fop_write+0xef/0x1b0
[  401.511051]  #2: 00000000c921c634 (kn->count#317){.+.+}, at: kernfs_fop_write+0xf7/0x1b0
[  401.511062]  #3: 00000000a19cdd56 (&dev->mutex){....}, at: sriov_numvfs_store+0x6b/0x130
[  401.511079]  #4: 000000005425fa52 (pernet_ops_rwsem){++++}, at: unregister_netdevice_notifier+0x30/0x140
[  401.511092]  #5: 00000000c5822793 (rtnl_mutex){+.+.}, at: unregister_netdevice_notifier+0x35/0x140
[  401.511101]  #6: 00000000c2f3507e (rcu_read_lock){....}, at: flow_block_ing_cmd+0x5/0x130
[  401.511115]
               stack backtrace:
[  401.511121] CPU: 21 PID: 7576 Comm: test-ecmp-add-v Not tainted 5.3.0-rc3+ #589
[  401.511124] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017
[  401.511127] Call Trace:
[  401.511138]  dump_stack+0x85/0xc0
[  401.511146]  ___might_sleep+0x100/0x180
[  401.511154]  __mutex_lock+0x5b/0x960
[  401.511162]  ? find_held_lock+0x2b/0x80
[  401.511173]  ? __tcf_get_next_chain+0x1d/0xb0
[  401.511179]  ? mark_held_locks+0x49/0x70
[  401.511194]  ? __tcf_get_next_chain+0x1d/0xb0
[  401.511198]  __tcf_get_next_chain+0x1d/0xb0
[  401.511251]  ? uplink_rep_async_event+0x70/0x70 [mlx5_core]
[  401.511261]  tcf_block_playback_offloads+0x39/0x160
[  401.511276]  tcf_block_setup+0x1b0/0x240
[  401.511312]  ? mlx5e_rep_indr_setup_tc_cb+0xca/0x290 [mlx5_core]
[  401.511347]  ? mlx5e_rep_indr_tc_block_unbind+0x50/0x50 [mlx5_core]
[  401.511359]  tc_indr_block_get_and_ing_cmd+0x11b/0x1e0
[  401.511404]  ? mlx5e_rep_indr_tc_block_unbind+0x50/0x50 [mlx5_core]
[  401.511414]  flow_block_ing_cmd+0x7e/0x130
[  401.511453]  ? mlx5e_rep_indr_tc_block_unbind+0x50/0x50 [mlx5_core]
[  401.511462]  __flow_indr_block_cb_unregister+0x7f/0xf0
[  401.511502]  mlx5e_nic_rep_netdevice_event+0x75/0xb0 [mlx5_core]
[  401.511513]  unregister_netdevice_notifier+0xe9/0x140
[  401.511554]  mlx5e_cleanup_rep_tx+0x6f/0xe0 [mlx5_core]
[  401.511597]  mlx5e_detach_netdev+0x4b/0x60 [mlx5_core]
[  401.511637]  mlx5e_vport_rep_unload+0x71/0xc0 [mlx5_core]
[  401.511679]  esw_offloads_disable+0x5b/0x90 [mlx5_core]
[  401.511724]  mlx5_eswitch_disable.cold+0xdf/0x176 [mlx5_core]
[  401.511759]  mlx5_device_disable_sriov+0xab/0xb0 [mlx5_core]
[  401.511794]  mlx5_core_sriov_configure+0xaf/0xd0 [mlx5_core]
[  401.511805]  sriov_numvfs_store+0xf8/0x130
[  401.511817]  kernfs_fop_write+0x122/0x1b0
[  401.511826]  vfs_write+0xdb/0x1d0
[  401.511835]  ksys_write+0x65/0xe0
[  401.511847]  do_syscall_64+0x5c/0xb0
[  401.511857]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  401.511862] RIP: 0033:0x7fad892d30f8
[  401.511868] Code: 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 25 96 0d 00 8b 00 85 c0 75 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 60 c3 0f 1f 80 00 00 00 00 48 83
 ec 28 48 89
[  401.511871] RSP: 002b:00007ffca2a9fad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  401.511875] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fad892d30f8
[  401.511878] RDX: 0000000000000002 RSI: 000055afeb072a90 RDI: 0000000000000001
[  401.511881] RBP: 000055afeb072a90 R08: 00000000ffffffff R09: 000000000000000a
[  401.511884] R10: 000055afeb058710 R11: 0000000000000246 R12: 0000000000000002
[  401.511887] R13: 00007fad893a8780 R14: 0000000000000002 R15: 00007fad893a3740

To fix the described incorrect RCU usage, convert block_ing_cb_list from
RCU list to regular list and protect it with flow_indr_block_ing_cb_lock
mutex in flow_block_ing_cmd().

Fixes: 1150ab0f ("flow_offload: support get multi-subsystem block")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Merge conflict of mlx5 resolved using instructions in merge
commit 9566e650.
Signed-off-by: David S. Miller <davem@davemloft.net>

Pull networking fixes from David Miller:

  1) Fix jmp to 1st instruction in x64 JIT, from Alexei Starovoitov.

  2) Severl kTLS fixes in mlx5 driver, from Tariq Toukan.

  3) Fix severe performance regression due to lack of SKB coalescing of
     fragments during local delivery, from Guillaume Nault.

  4) Error path memory leak in sch_taprio, from Ivan Khoronzhuk.

  5) Fix batched events in skbedit packet action, from Roman Mashak.

  6) Propagate VLAN TX offload to hw_enc_features in bond and team
     drivers, from Yue Haibing.

  7) RXRPC local endpoint refcounting fix and read after free in
     rxrpc_queue_local(), from David Howells.

  8) Fix endian bug in ibmveth multicast list handling, from Thomas
     Falcon.

  9) Oops, make nlmsg_parse() wrap around the correct function,
     __nlmsg_parse not __nla_parse(). Fix from David Ahern.

 10) Memleak in sctp_scend_reset_streams(), fro Zheng Bin.

 11) Fix memory leak in cxgb4, from Wenwen Wang.

 12) Yet another race in AF_PACKET, from Eric Dumazet.

 13) Fix false detection of retransmit failures in tipc, from Tuong
     Lien.

 14) Use after free in ravb_tstamp_skb, from Tho Vu.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (101 commits)
  ravb: Fix use-after-free ravb_tstamp_skb
  netfilter: nf_tables: map basechain priority to hardware priority
  net: sched: use major priority number as hardware priority
  wimax/i2400m: fix a memory leak bug
  net: cavium: fix driver name
  ibmvnic: Unmap DMA address of TX descriptor buffers after use
  bnxt_en: Fix to include flow direction in L2 key
  bnxt_en: Use correct src_fid to determine direction of the flow
  bnxt_en: Suppress HWRM errors for HWRM_NVM_GET_VARIABLE command
  bnxt_en: Fix handling FRAG_ERR when NVM_INSTALL_UPDATE cmd fails
  bnxt_en: Improve RX doorbell sequence.
  bnxt_en: Fix VNIC clearing logic for 57500 chips.
  net: kalmia: fix memory leaks
  cx82310_eth: fix a memory leak bug
  bnx2x: Fix VF's VLAN reconfiguration in reload.
  Bluetooth: Add debug setting for changing minimum encryption key size
  tipc: fix false detection of retransmit failures
  lan78xx: Fix memory leaks
  MAINTAINERS: r8169: Update path to the driver
  MAINTAINERS: PHY LIBRARY: Update files in the record
  ...

The maximum key description size is 4095.  Commit f771fde8 ("keys:
Simplify key description management") inadvertantly reduced that to 255
and made sizes between 256 and 4095 work weirdly, and any size whereby
size & 255 == 0 would cause an assertion in __key_link_begin() at the
following line:

	BUG_ON(index_key->desc_len == 0);

This can be fixed by simply increasing the size of desc_len in struct
keyring_index_key to a u16.

Note the argument length test in keyutils only checked empty
descriptions and descriptions with a size around the limit (ie.  4095)
and not for all the values in between, so it missed this.  This has been
addressed and

	https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/keyutils.git/commit/?id=066bf56807c26cd3045a25f355b34c1d8a20a5aa

now exhaustively tests all possible lengths of type, description and
payload and then some.

The assertion failure looks something like:

 kernel BUG at security/keys/keyring.c:1245!
 ...
 RIP: 0010:__key_link_begin+0x88/0xa0
 ...
 Call Trace:
  key_create_or_update+0x211/0x4b0
  __x64_sys_add_key+0x101/0x200
  do_syscall_64+0x5b/0x1e0
  entry_SYSCALL_64_after_hwframe+0x44/0xa9

It can be triggered by:

	keyctl add user "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" a @s

Fixes: f771fde8 ("keys: Simplify key description management")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This patch adds the call to phy_attached_info() to the hns driver
to identify which exact PHY drivers is in use.
Suggested-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

When a Tx timestamp is requested, a pointer to the skb is stored in the
ravb_tstamp_skb struct. This was done without an skb_get. There exists
the possibility that the skb could be freed by ravb_tx_free (when
ravb_tx_free is called from ravb_start_xmit) before the timestamp was
processed, leading to a use-after-free bug.

Use skb_get when filling a ravb_tstamp_skb struct, and add appropriate
frees/consumes when a ravb_tstamp_skb struct is freed.

Fixes: c156633f ("Renesas Ethernet AVB driver proper")
Signed-off-by: Tho Vu <tho.vu.wh@rvc.renesas.com>
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch adds support for the MediaTek MT7628/88 SoCs to the common
MediaTek ethernet driver. Some minor changes are needed for this and
a bigger change, as the MT7628 does not support QDMA (only PDMA).
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: René van Dorst <opensource@vdorst.com>
Cc: Daniel Golle <daniel@makrotopia.org>
Cc: Sean Wang <sean.wang@mediatek.com>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Rename the NEXT_RX_DESP_IDX macro to NEXT_DESP_IDX, so that it better
can be used for TX ops as well. This will be used in the upcoming
MT7628/88 support (same functionality for RX and TX in this macro).
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: René van Dorst <opensource@vdorst.com>
Cc: Daniel Golle <daniel@makrotopia.org>
Cc: Sean Wang <sean.wang@mediatek.com>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Currently all QDMA registers are named "MTK_QDMA_foo" in this driver
with one exception: MTK_QMTK_INT_STATUS. This patch renames
MTK_QMTK_INT_STATUS to MTK_QDMA_INT_STATUS so that all macros follow
this rule.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: René van Dorst <opensource@vdorst.com>
Cc: Daniel Golle <daniel@makrotopia.org>
Cc: Sean Wang <sean.wang@mediatek.com>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add compatible for the ethernet IP core on MT7628/88 SoCs. Its
compatible with the older Ralink Rt5350F SoC. And OpenWrt already
uses this compatible string for the MT76x8.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: René van Dorst <opensource@vdorst.com>
Cc: Daniel Golle <daniel@makrotopia.org>
Cc: Sean Wang <sean.wang@mediatek.com>
Cc: John Crispin <john@phrozen.org>
Cc: devicetree@vger.kernel.org
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Adaptive coalescing is managed per adapter not per event queue so it
does not needed to store 'enable' flag for each event queue.
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Pablo Neira Ayuso says:

====================
flow_offload hardware priority fixes

This patchset contains two updates for the flow_offload users:

1) Pass the major tc priority to drivers so they do not have to
   lshift it. This is a preparation patch for the fix coming in
   patch #2.

2) Set the hardware priority from the netfilter basechain priority,
   some drivers break when using the existing hardware priority
   number that is set to zero.

v5: fix patch 2/2 to address a clang warning and to simplify
    the priority mapping.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch adds initial support for offloading basechains using the
priority range from 1 to 65535. This is restricting the netfilter
priority range to 16-bit integer since this is what most drivers assume
so far from tc. It should be possible to extend this range of supported
priorities later on once drivers are updated to support for 32-bit
integer priorities.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

tc transparently maps the software priority number to hardware. Update
it to pass the major priority which is what most drivers expect. Update
drivers too so they do not need to lshift the priority field of the
flow_cls_common_offload object. The stmmac driver is an exception, since
this code assumes the tc software priority is fine, therefore, lshift it
just to be conservative.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In i2400m_barker_db_init(), 'options_orig' is allocated through kstrdup()
to hold the original command line options. Then, the options are parsed.
However, if an error occurs during the parsing process, 'options_orig' is
not deallocated, leading to a memory leak bug. To fix this issue, free
'options_orig' before returning the error.
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>

The driver name gets exposed in sysfs under /sys/bus/pci/drivers
so it should look like other devices. Change it to be common
format (instead of "Cavium PTP").

This is a trivial fix that was observed by accident because
Debian kernels were building this driver into kernel (bug).
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

The policy for handling the skb list locks on the send and receive paths
is simple.

- On the send path we never need to grab the lock on the 'xmitq' list
  when the destination is an exernal node.

- On the receive path we always need to grab the lock on the 'inputq'
  list, irrespective of source node.

However, when transmitting node local messages those will eventually
end up on the receive path of a local socket, meaning that the argument
'xmitq' in tipc_node_xmit() will become the 'ínputq' argument in  the
function tipc_sk_rcv(). This has been handled by always initializing
the spinlock of the 'xmitq' list at message creation, just in case it
may end up on the receive path later, and despite knowing that the lock
in most cases never will be used.

This approach is inaccurate and confusing, and has also concealed the
fact that the stated 'no lock grabbing' policy for the send path is
violated in some cases.

We now clean up this by never initializing the lock at message creation,
instead doing this at the moment we find that the message actually will
enter the receive path. At the same time we fix the four locations
where we incorrectly access the spinlock on the send/error path.

This patch also reverts commit d12cffe9 ("tipc: ensure head->lock
is initialised") which has now become redundant.

CC: Eric Dumazet <edumazet@google.com>
Reported-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

There's no need to wait until a completion is received to unmap
TX descriptor buffers that have been passed to the hypervisor.
Instead unmap it when the hypervisor call has completed. This patch
avoids the possibility that a buffer will not be unmapped because
a TX completion is lost or mishandled.
Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Tested-by: Devesh K. Singh <devesh_singh@in.ibm.com>
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Michael Chan says:

====================
bnxt_en: Bug fixes.

2 Bug fixes related to 57500 shutdown sequence and doorbell sequence,
2 TC Flower bug fixes related to the setting of the flow direction,
1 NVRAM update bug fix, and a minor fix to suppress an unnecessary
error message.  Please queue for -stable as well.  Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>