and wireless.
Current release - regressions:
- Revert "netfilter: nat: force port remap to prevent shadowing
well-known ports", restore working conntrack on asymmetric paths
- Revert "ath10k: drop beacon and probe response which leak from
other channel", restore working AP and mesh mode on QCA9984
- eth: intel: fix hang during reboot/shutdown
Current release - new code bugs:
- netfilter: nf_tables: disable register tracking, it needs more
work to cover all corner cases
Previous releases - regressions:
- ipv6: fix skb_over_panic in __ip6_append_data when (admin-only)
extension headers get specified
- esp6: fix ESP over TCP/UDP, interpret ipv6_skip_exthdr's return
value more selectively
- bnx2x: fix driver load failure when FW not present in initrd
Previous releases - always broken:
- vsock: stop destroying unrelated sockets in nested virtualization
- packet: fix slab-out-of-bounds access in packet_recvmsg()
Misc:
- add Paolo Abeni to networking maintainers!
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----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=pStH
-----END PGP SIGNATURE-----
Merge tag 'net-5.17-final' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, ipsec, and wireless.
A few last minute revert / disable and fix patches came down from our
sub-trees. We're not waiting for any fixes at this point.
Current release - regressions:
- Revert "netfilter: nat: force port remap to prevent shadowing
well-known ports", restore working conntrack on asymmetric paths
- Revert "ath10k: drop beacon and probe response which leak from
other channel", restore working AP and mesh mode on QCA9984
- eth: intel: fix hang during reboot/shutdown
Current release - new code bugs:
- netfilter: nf_tables: disable register tracking, it needs more work
to cover all corner cases
Previous releases - regressions:
- ipv6: fix skb_over_panic in __ip6_append_data when (admin-only)
extension headers get specified
- esp6: fix ESP over TCP/UDP, interpret ipv6_skip_exthdr's return
value more selectively
- bnx2x: fix driver load failure when FW not present in initrd
Previous releases - always broken:
- vsock: stop destroying unrelated sockets in nested virtualization
- packet: fix slab-out-of-bounds access in packet_recvmsg()
Misc:
- add Paolo Abeni to networking maintainers!"
* tag 'net-5.17-final' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (26 commits)
iavf: Fix hang during reboot/shutdown
net: mscc: ocelot: fix backwards compatibility with single-chain tc-flower offload
net: bcmgenet: skip invalid partial checksums
bnx2x: fix built-in kernel driver load failure
net: phy: mscc: Add MODULE_FIRMWARE macros
net: dsa: Add missing of_node_put() in dsa_port_parse_of
net: handle ARPHRD_PIMREG in dev_is_mac_header_xmit()
Revert "ath10k: drop beacon and probe response which leak from other channel"
hv_netvsc: Add check for kvmalloc_array
iavf: Fix double free in iavf_reset_task
ice: destroy flow director filter mutex after releasing VSIs
ice: fix NULL pointer dereference in ice_update_vsi_tx_ring_stats()
Add Paolo Abeni to networking maintainers
atm: eni: Add check for dma_map_single
net/packet: fix slab-out-of-bounds access in packet_recvmsg()
net: mdio: mscc-miim: fix duplicate debugfs entry
net: phy: marvell: Fix invalid comparison in the resume and suspend functions
esp6: fix check on ipv6_skip_exthdr's return value
net: dsa: microchip: add spi_device_id tables
netfilter: nf_tables: disable register tracking
...
This kind of interface doesn't have a mac header. This patch fixes
bpf_redirect() to a PIM interface.
Fixes: 27b29f6305 ("bpf: add bpf_redirect() helper")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20220315092008.31423-1-nicolas.dichtel@6wind.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
____napi_schedule() needs to be invoked with disabled interrupts due to
__raise_softirq_irqoff (in order not to corrupt the per-CPU list).
____napi_schedule() needs also to be invoked from an interrupt context
so that the raised-softirq is processed while the interrupt context is
left.
Add lockdep asserts for both conditions.
While this is the second time the irq/softirq check is needed, provide a
generic lockdep_assert_softirq_will_run() which is used by both caller.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add net device refcount tracker to macvlan.
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Before adding yet another possibly contended atomic_long_t,
it is time to add per-cpu storage for existing ones:
dev->tx_dropped, dev->rx_dropped, and dev->rx_nohandler
Because many devices do not have to increment such counters,
allocate the per-cpu storage on demand, so that dev_get_stats()
does not have to spend considerable time folding zero counters.
Note that some drivers have abused these counters which
were supposed to be only used by core networking stack.
v4: should use per_cpu_ptr() in dev_get_stats() (Jakub)
v3: added a READ_ONCE() in netdev_core_stats_alloc() (Paolo)
v2: add a missing include (reported by kernel test robot <lkp@intel.com>)
Change in netdev_core_stats_alloc() (Jakub)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: jeffreyji <jeffreyji@google.com>
Reviewed-by: Brian Vazquez <brianvv@google.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20220311051420.2608812-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Enable binding the nfp driver to NFP3800 and NFP3803 devices.
The PCIE_SRAM offset is different for the NFP3800 device, which also
only supports a single explicit group.
Changes to Dirk's work:
* 48-bit dma addressing is not ready yet. Keep 40-bit dma addressing
for NFP3800.
Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* add BCM43454/6 support
rtw89
* add support for 160 MHz channels and 6 GHz band
* hardware scan support
iwlwifi
* support UHB TAS enablement via BIOS
* remove a bunch of W=1 warnings
* add support for channel switch offload
* support 32 Rx AMPDU sessions in newer devices
* add support for a couple of new devices
* add support for band disablement via BIOS
mt76
* mt7915 thermal management improvements
* SAR support for more mt76 drivers
* mt7986 wmac support on mt7915
ath11k
* debugfs interface to configure firmware debug log level
* debugfs interface to test Target Wake Time (TWT)
* provide 802.11ax High Efficiency (HE) data via radiotap
ath9k
* use hw_random API instead of directly dumping into random.c
wcn36xx
* fix wcn3660 to work on 5 GHz band
ath6kl
* add device ID for WLU5150-D81
cfg80211/mac80211
* initial EHT (from 802.11be) support
(EHT rates, 320 MHz, larger block-ack)
* support disconnect on HW restart
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEH1e1rEeCd0AIMq6MB8qZga/fl8QFAmIrQoUACgkQB8qZga/f
l8SV9RAAhZwiX4tkcjOYh3vDCOlmZRZV7dy0CYtcRlyHvO/4xH0DJUCbItW3hkeY
HwLeaTE9J6INCui/iWbWVWsBKoiYQHEWxbfLYg6xDeQR4ijYQaz1c9inevu6qdOn
3STKzBjsJ8uQF81ANjTFsL33B9olceIrHttqVI0Ezv6YlAQ1JYRNBBikh8NM+XPN
/AUdsG9KyWRuraPbPf1sZapMJBGpvDMhKlo8LW08Xv9sC8to57Tw5AHVwMY71Ipu
ClE0EyDGYRm8W+cbJvZ1bp7D/TGcIspAdpPR9JAznXWeFhyl6bswGtUsf3FGxXNk
1i+1tonRlL3Xi9CvXDmGk2fstYe4MSmWXVFehoulMY9F2C1ibp6PrLa8SLjC+wzu
1QDfM65ggc90uu0AJLTOp9qnkapvz3/FGL5z9sx2OEM1Iks2RwOpbB6gKo+C0A9W
3wMxgPPt4mMV2WIgYv1okfcghUoH2l3b1n+Iq+osOa9pbdLrMhvzsrhIQZBaFnBa
3S5yhGh8djEla2+FmmMs0RKvRX+m+FeVjkJ8ozPLZl880A0OLmZZ+6Wnoa3ZQHmi
AkuOLhCGm3PVXCN8Mb0nwHmc+LJS/V/U5VBDzieOXMKM4OjMlbGQNt4+2bEJ+Qd3
jlTkt1cLI/gFvdoFmsJUEOrpT49qZ94obmX8u07pEO/fI+bXHF4=
=ccps
-----END PGP SIGNATURE-----
Merge tag 'wireless-next-2022-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
brcmfmac
* add BCM43454/6 support
rtw89
* add support for 160 MHz channels and 6 GHz band
* hardware scan support
iwlwifi
* support UHB TAS enablement via BIOS
* remove a bunch of W=1 warnings
* add support for channel switch offload
* support 32 Rx AMPDU sessions in newer devices
* add support for a couple of new devices
* add support for band disablement via BIOS
mt76
* mt7915 thermal management improvements
* SAR support for more mt76 drivers
* mt7986 wmac support on mt7915
ath11k
* debugfs interface to configure firmware debug log level
* debugfs interface to test Target Wake Time (TWT)
* provide 802.11ax High Efficiency (HE) data via radiotap
ath9k
* use hw_random API instead of directly dumping into random.c
wcn36xx
* fix wcn3660 to work on 5 GHz band
ath6kl
* add device ID for WLU5150-D81
cfg80211/mac80211
* initial EHT (from 802.11be) support
(EHT rates, 320 MHz, larger block-ack)
* support disconnect on HW restart
* tag 'wireless-next-2022-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (247 commits)
mac80211: Add support to trigger sta disconnect on hardware restart
mac80211: fix potential double free on mesh join
mac80211: correct legacy rates check in ieee80211_calc_rx_airtime
nl80211: fix typo of NL80211_IF_TYPE_OCB in documentation
mac80211: Use GFP_KERNEL instead of GFP_ATOMIC when possible
mac80211: replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE
rtw89: 8852c: process logic efuse map
rtw89: 8852c: process efuse of phycap
rtw89: support DAV efuse reading operation
rtw89: 8852c: add chip::dle_mem
rtw89: add page_regs to handle v1 chips
rtw89: add chip_info::{h2c,c2h}_reg to support more chips
rtw89: add hci_func_en_addr to support variant generation
rtw89: add power_{on/off}_func
rtw89: read chip version depends on chip ID
rtw89: pci: use a struct to describe all registers address related to DMA channel
rtw89: pci: add V1 of PCI channel address
rtw89: pci: add struct rtw89_pci_info
rtw89: 8852c: add 8852c empty files
MAINTAINERS: add devicetree bindings entry for mt76
...
====================
Link: https://lore.kernel.org/r/20220311124029.213470-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Merge misc fixes from David Howells:
"A set of patches for watch_queue filter issues noted by Jann. I've
added in a cleanup patch from Christophe Jaillet to convert to using
formal bitmap specifiers for the note allocation bitmap.
Also two filesystem fixes (afs and cachefiles)"
* emailed patches from David Howells <dhowells@redhat.com>:
cachefiles: Fix volume coherency attribute
afs: Fix potential thrashing in afs writeback
watch_queue: Make comment about setting ->defunct more accurate
watch_queue: Fix lack of barrier/sync/lock between post and read
watch_queue: Free the alloc bitmap when the watch_queue is torn down
watch_queue: Fix the alloc bitmap size to reflect notes allocated
watch_queue: Use the bitmap API when applicable
watch_queue: Fix to always request a pow-of-2 pipe ring size
watch_queue: Fix to release page in ->release()
watch_queue, pipe: Free watchqueue state after clearing pipe ring
watch_queue: Fix filter limit check
In watch_queue_set_filter(), there are a couple of places where we check
that the filter type value does not exceed what the type_filter bitmap
can hold. One place calculates the number of bits by:
if (tf[i].type >= sizeof(wfilter->type_filter) * 8)
which is fine, but the second does:
if (tf[i].type >= sizeof(wfilter->type_filter) * BITS_PER_LONG)
which is not. This can lead to a couple of out-of-bounds writes due to
a too-large type:
(1) __set_bit() on wfilter->type_filter
(2) Writing more elements in wfilter->filters[] than we allocated.
Fix this by just using the proper WATCH_TYPE__NR instead, which is the
number of types we actually know about.
The bug may cause an oops looking something like:
BUG: KASAN: slab-out-of-bounds in watch_queue_set_filter+0x659/0x740
Write of size 4 at addr ffff88800d2c66bc by task watch_queue_oob/611
...
Call Trace:
<TASK>
dump_stack_lvl+0x45/0x59
print_address_description.constprop.0+0x1f/0x150
...
kasan_report.cold+0x7f/0x11b
...
watch_queue_set_filter+0x659/0x740
...
__x64_sys_ioctl+0x127/0x190
do_syscall_64+0x43/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
Allocated by task 611:
kasan_save_stack+0x1e/0x40
__kasan_kmalloc+0x81/0xa0
watch_queue_set_filter+0x23a/0x740
__x64_sys_ioctl+0x127/0x190
do_syscall_64+0x43/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
The buggy address belongs to the object at ffff88800d2c66a0
which belongs to the cache kmalloc-32 of size 32
The buggy address is located 28 bytes inside of
32-byte region [ffff88800d2c66a0, ffff88800d2c66c0)
Fixes: c73be61ced ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The assumption that the first byte in the module mapping dword is the
module number shouldn't be hard-coded in the driver, but come from
mlx5_ifc structs.
While at it, fix the incorrect width for the 'rx_lane' and 'tx_lane'
fields.
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
The MCIA register supports either 12 or 32 dwords, use the correct value
by querying the capability from the MCAM register.
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
and ipsec.
Current release - regressions:
- Bluetooth: fix unbalanced unlock in set_device_flags()
- Bluetooth: fix not processing all entries on cmd_sync_work,
make connect with qualcomm and intel adapters reliable
- Revert "xfrm: state and policy should fail if XFRMA_IF_ID 0"
- xdp: xdp_mem_allocator can be NULL in trace_mem_connect()
- eth: ice: fix race condition and deadlock during interface enslave
Current release - new code bugs:
- tipc: fix incorrect order of state message data sanity check
Previous releases - regressions:
- esp: fix possible buffer overflow in ESP transformation
- dsa: unlock the rtnl_mutex when dsa_master_setup() fails
- phy: meson-gxl: fix interrupt handling in forced mode
- smsc95xx: ignore -ENODEV errors when device is unplugged
Previous releases - always broken:
- xfrm: fix tunnel mode fragmentation behavior
- esp: fix inter address family tunneling on GSO
- tipc: fix null-deref due to race when enabling bearer
- sctp: fix kernel-infoleak for SCTP sockets
- eth: macb: fix lost RX packet wakeup race in NAPI receive
- eth: intel stop disabling VFs due to PF error responses
- eth: bcmgenet: don't claim WOL when its not available
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----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=WfAR
-----END PGP SIGNATURE-----
Merge tag 'net-5.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth, and ipsec.
Current release - regressions:
- Bluetooth: fix unbalanced unlock in set_device_flags()
- Bluetooth: fix not processing all entries on cmd_sync_work, make
connect with qualcomm and intel adapters reliable
- Revert "xfrm: state and policy should fail if XFRMA_IF_ID 0"
- xdp: xdp_mem_allocator can be NULL in trace_mem_connect()
- eth: ice: fix race condition and deadlock during interface enslave
Current release - new code bugs:
- tipc: fix incorrect order of state message data sanity check
Previous releases - regressions:
- esp: fix possible buffer overflow in ESP transformation
- dsa: unlock the rtnl_mutex when dsa_master_setup() fails
- phy: meson-gxl: fix interrupt handling in forced mode
- smsc95xx: ignore -ENODEV errors when device is unplugged
Previous releases - always broken:
- xfrm: fix tunnel mode fragmentation behavior
- esp: fix inter address family tunneling on GSO
- tipc: fix null-deref due to race when enabling bearer
- sctp: fix kernel-infoleak for SCTP sockets
- eth: macb: fix lost RX packet wakeup race in NAPI receive
- eth: intel stop disabling VFs due to PF error responses
- eth: bcmgenet: don't claim WOL when its not available"
* tag 'net-5.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (50 commits)
xdp: xdp_mem_allocator can be NULL in trace_mem_connect().
ice: Fix race condition during interface enslave
net: phy: meson-gxl: improve link-up behavior
net: bcmgenet: Don't claim WOL when its not available
net: arc_emac: Fix use after free in arc_mdio_probe()
sctp: fix kernel-infoleak for SCTP sockets
net: phy: correct spelling error of media in documentation
net: phy: DP83822: clear MISR2 register to disable interrupts
gianfar: ethtool: Fix refcount leak in gfar_get_ts_info
selftests: pmtu.sh: Kill nettest processes launched in subshell.
selftests: pmtu.sh: Kill tcpdump processes launched by subshell.
NFC: port100: fix use-after-free in port100_send_complete
net/mlx5e: SHAMPO, reduce TIR indication
net/mlx5e: Lag, Only handle events from highest priority multipath entry
net/mlx5: Fix offloading with ESWITCH_IPV4_TTL_MODIFY_ENABLE
net/mlx5: Fix a race on command flush flow
net/mlx5: Fix size field in bufferx_reg struct
ax25: Fix NULL pointer dereference in ax25_kill_by_device
net: marvell: prestera: Add missing of_node_put() in prestera_switch_set_base_mac_addr
net: ethernet: lpc_eth: Handle error for clk_enable
...
1) Remove kernel log prints on FW events regarding FW pages management
and replace that with debugfs entries to track FW pages management commands
failures and general stats, we do that for all FW commands in general since
it's the same effort to do so under the already existing debugfs entry for
FW commands.
2) Add support for ConnectX-7 Software managed steering, in other words STEv2
which shares a lot in common with STE V1, the difference is in specific
offsets in the devices, the logic is almost the same, thus we implement
STEv1 and STEv2 in the same file.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEGhZs6bAKwk/OTgTpSD+KveBX+j4FAmIpHREACgkQSD+KveBX
+j7Ubwf/WDV1+UDECznQtWAZ3DMmSlVlfUDgxrdaNiJ1BRFEk4fg3yBLyEtYlVBR
Rw0ZrtkuZo31Iu92P2rvOlExmMJuGNBMpBpNwXN1TZuG43DKMUY3RVHB27O9Y9zQ
z4BOhYFVu4Bhn7euO1Icu9YlDdVWGssb0sjAN7iFyCghzA6VeuPpJxYPfNgQNZrx
frHLKTW2tHqKvCCIv7oxZpG2zcg0wyV4QgG0P2XOYddRDTCPZTbLGrQEaCos0WcM
uKy5vJWjbW1lxxOW2S7uYSujdTttkpC/ltv1Pe47QFZsCAtGV/P5S34D170Lu/t5
J1suur834H6o2qm9hrDj7QDwcjwsYw==
=f7Ae
-----END PGP SIGNATURE-----
Merge tag 'mlx5-updates-2022-03-09' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2022-03-09
1) Remove kernel log prints on FW events regarding FW pages management
and replace that with debugfs entries to track FW pages management commands
failures and general stats, we do that for all FW commands in general since
it's the same effort to do so under the already existing debugfs entry for
FW commands.
2) Add support for ConnectX-7 Software managed steering, in other words STEv2
which shares a lot in common with STE V1, the difference is in specific
offsets in the devices, the logic is almost the same, thus we implement
STEv1 and STEv2 in the same file.
* tag 'mlx5-updates-2022-03-09' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: DR, Add support for ConnectX-7 steering
net/mlx5: DR, Refactor ste_ctx handling for STE v0/1
net/mlx5: DR, Rename action modify fields to reflect naming in HW spec
net/mlx5: DR, Fix handling of different actions on the same STE in STEv1
net/mlx5: DR, Remove unneeded comments
net/mlx5: DR, Add support for matching on Internet Header Length (IHL)
net/mlx5: DR, Align mlx5dv_dr API vport action with FW behavior
net/mlx5: Add debugfs counters for page commands failures
net/mlx5: Add pages debugfs
net/mlx5: Move debugfs entries to separate struct
net/mlx5: Change release_all_pages cap bit location
net/mlx5: Remove redundant error on reclaim pages
net/mlx5: Remove redundant error on give pages
net/mlx5: Remove redundant notify fail on give pages
net/mlx5: Add command failures data to debugfs
net/mlx5e: TC, Fix use after free in mlx5e_clone_flow_attr_for_post_act()
====================
Link: https://lore.kernel.org/r/20220309213755.610202-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
rsmu (Renesas Synchronization Management Unit ) driver is located in
drivers/mfd and responsible for creating multiple devices including
idt82p33 phc, which will then use the exposed regmap and mutex
handle to access i2c/spi bus.
Signed-off-by: Min Li <min.li.xe@renesas.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://lore.kernel.org/r/1646748651-16811-1-git-send-email-min.li.xe@renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add support for a new SW format version that is implemented by
ConnectX-7.
Except for several differences, the STEv2 is identical to STEv1, so for
most callbacks the STEv2 context struct will call STEv1 functions.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Add support for matching on new field - Internet Header Length (IHL).
Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Add the following new debugfs counters for debug and verbosity:
fw_pages_alloc_failed - number of pages FW requested but driver failed
to allocate.
give_pages_dropped - number of pages given to FW, but command give pages
failed by FW.
reclaim_pages_discard - number of pages which were about to reclaim back
and FW failed the command.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Add pages debugfs to expose the following counters for debuggability:
fw_pages_total - How many pages were given to FW and not returned yet.
vfs_pages - For SRIOV, how many pages were given to FW for virtual
functions usage.
host_pf_pages - For ECPF, how many pages were given to FW for external
hosts physical functions usage.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Move the debugfs entry pointers under priv to their own struct.
Add get function for device debugfs root.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
mlx5 FW has changed release_all_pages cap bit by one bit offset to
reflect a fix in the FW flow for release_all_pages. The driver should
use the new bit to ensure it calls release_all_pages only if the FW fix
is there.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Add new counters to command interface debugfs to count command failures.
The following counters added:
total_failed - number of times command failed (any kind of failure).
failed_mbox_status - number of times command failed on bad status
returned by FW.
In addition, add data about last command failure to command interface
debugfs:
last_failed_errno - last command failed returned errno.
last_failed_mbox_status - last bad status returned by FW.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
SHAMPO is an RQ / WQ feature, an indication was added to the TIR in the
first place to enforce suitability between connected TIR and RQ, this
enforcement does not exist in current the Firmware implementation and was
redundant in the first place.
Fixes: 83439f3c37 ("net/mlx5e: Add HW-GRO offload")
Signed-off-by: Ben Ben-Ishay <benishay@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
According to HW spec the field "size" should be 16 bits
in bufferx register.
Fixes: e281682bf2 ("net/mlx5_core: HW data structs/types definitions cleanup")
Signed-off-by: Mohammad Kabat <mohammadkab@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Steffen Klassert says:
====================
pull request (net): ipsec 2022-03-09
1) Fix IPv6 PMTU discovery for xfrm interfaces.
From Lina Wang.
2) Revert failing for policies and states that are
configured with XFRMA_IF_ID 0. It broke a
user configuration. From Kai Lueke.
3) Fix a possible buffer overflow in the ESP output path.
4) Fix ESP GSO for tunnel and BEET mode on inter address
family tunnels.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We have a number of cases where function returns drop/no drop
decision as a boolean. Now that we want to report the reason
code as well we have to pass extra output arguments.
We can make the reason code evaluate correctly as bool.
I believe we're good to reorder the reasons as they are
reported to user space as strings.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Make EL1 vectors per-cpu
- Add mitigation sequences to the EL1 and EL2 vectors on vulnerble CPUs
- Implement ARCH_WORKAROUND_3 for KVM guests
- Report Vulnerable when unprivileged eBPF is enabled
-----BEGIN PGP SIGNATURE-----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=bXPh
-----END PGP SIGNATURE-----
Merge tag 'arm64-spectre-bhb-for-v5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 spectre fixes from James Morse:
"ARM64 Spectre-BHB mitigations:
- Make EL1 vectors per-cpu
- Add mitigation sequences to the EL1 and EL2 vectors on vulnerble
CPUs
- Implement ARCH_WORKAROUND_3 for KVM guests
- Report Vulnerable when unprivileged eBPF is enabled"
* tag 'arm64-spectre-bhb-for-v5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: proton-pack: Include unprivileged eBPF status in Spectre v2 mitigation reporting
arm64: Use the clearbhb instruction in mitigations
KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated
arm64: Mitigate spectre style branch history side channels
arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2
arm64: Add percpu vectors for EL1
arm64: entry: Add macro for reading symbol addresses from the trampoline
arm64: entry: Add vectors that have the bhb mitigation sequences
arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations
arm64: entry: Allow the trampoline text to occupy multiple pages
arm64: entry: Make the kpti trampoline's kpti sequence optional
arm64: entry: Move trampoline macros out of ifdef'd section
arm64: entry: Don't assume tramp_vectors is the start of the vectors
arm64: entry: Allow tramp_alias to access symbols after the 4K boundary
arm64: entry: Move the trampoline data page before the text page
arm64: entry: Free up another register on kpti's tramp_exit path
arm64: entry: Make the trampoline cleanup optional
KVM: arm64: Allow indirect vectors to be used without SPECTRE_V3A
arm64: spectre: Rename spectre_v4_patch_fw_mitigation_conduit
arm64: entry.S: Add ventry overflow sanity checks
genphy_read_master_slave function allows to configure the master/slave
for gigabit phys only. In order to use this function irrespective of
speed, moved the speed check to the genphy_read_status call.
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
which support eIBRS, i.e., the hardware-assisted speculation restriction
after it has been shown that such machines are vulnerable even with the
hardware mitigation.
- Do not use the default LFENCE-based Spectre v2 mitigation on AMD as it
is insufficient to mitigate such attacks. Instead, switch to retpolines
on all AMD by default.
- Update the docs and add some warnings for the obviously vulnerable
cmdline configurations.
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmIkktUACgkQEsHwGGHe
VUo7ZQ/+O4hzL/tHY0V/ekkDxCrJ3q3Hp+DcxUl2ee5PC3Qgxv1Z1waH6ppK8jQs
marAGr7FYbvzY039ON7irxhpSIckBCpx9tM2F43zsPxxY8EdxGojkHbmaqso5HtW
l3/O28AcZYoKN/fF8rRAIJy4hrTVascKrNJ2fOiYWYBT62ZIoPm0FusgXbKTZPD+
gT7iUMoyPjBnKdWDT9L6kKOxDF9TivX1Y6JdDHbnnBsgRkeFatkeq9BJ93M73q63
Ziq9c8ZcEXyKez+cGFCfXM7+pNYmfsiL48lilTyf+v+GXahDJQOkFw39j5zXEALm
Nk6yB3PRQ74pEwm5WbK7KO8iwPpblmnDB978mfUcpk+9xWJD8pyoUcItAmCBsXh1
LjIImYPqL6YihUb9udh+PEDISsfzWNzr4T+kgW9/yXXG4ZmGy3TLInhTK+rNAxJa
EshWZExEZj6yJvt83Vu08W9fppYJq976tJvl8LWOYthaxqY7IQz0q7mYd799yxk0
MLPqvZP1+4pHzqn2c9yeHgrwHwMmoqcyMx6B3EA5maYQPdlT7Fk9RCBeCdIA/ieF
OgGxy1WwMH+cvUa5MaBy3Y32LeYU3bUJh0yPFq/7BxEYGG9PJtLhg2xTo1Ui8F1d
fKrcSFcjZKVJ9UE5HaqOcp4ka+Q220I9IDGURXkAFQlnOU7X7CE=
=Athd
-----END PGP SIGNATURE-----
Merge tag 'x86_bugs_for_v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 spectre fixes from Borislav Petkov:
- Mitigate Spectre v2-type Branch History Buffer attacks on machines
which support eIBRS, i.e., the hardware-assisted speculation
restriction after it has been shown that such machines are vulnerable
even with the hardware mitigation.
- Do not use the default LFENCE-based Spectre v2 mitigation on AMD as
it is insufficient to mitigate such attacks. Instead, switch to
retpolines on all AMD by default.
- Update the docs and add some warnings for the obviously vulnerable
cmdline configurations.
* tag 'x86_bugs_for_v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT
x86/speculation: Warn about Spectre v2 LFENCE mitigation
x86/speculation: Update link to AMD speculation whitepaper
x86/speculation: Use generic retpoline by default on AMD
x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting
Documentation/hw-vuln: Update spectre doc
x86/speculation: Add eIBRS + Retpoline options
x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE
Some fixes that took a while to get ready. Not regressions,
but they look safe and seem to be worth to have.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmIklk8PHG1zdEByZWRo
YXQuY29tAAoJECgfDbjSjVRpacQIAL4f4v+udTETI6oXsbXSrC5ckX6fMMQF6U5y
mppXvvImAxcBqe0XcCHglTxW2ZmW9lu6qPD76aH5DcfnwnsoEZ/DoeFzk5YtFqa/
strjqeDY/aFIC0pFShEfGcg1TJ66C0bLPDWTIlWpyL9E0jeiKPeNXtAz2DbIa7cx
b6dKAm9DSo48ivU/xGC3sGijoBzp/fbWfnXliyLLVlhv3BnRafggyQVuh4jlT4WJ
RDXZ4cSaHXDbDpgeGB5ghBVnFqYKSyxPZqr2QMAO60sCsgaiIjp/KxtscI1DgHIg
RxLkEcu+14z7I5H46NRIH3cR75nSp4d4mGgIgMAX0OkZt8fwkNk=
=tFhA
-----END PGP SIGNATURE-----
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"Some last minute fixes that took a while to get ready. Not
regressions, but they look safe and seem to be worth to have"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
tools/virtio: handle fallout from folio work
tools/virtio: fix virtio_test execution
vhost: remove avail_event arg from vhost_update_avail_event()
virtio: drop default for virtio-mem
vdpa: fix use-after-free on vp_vdpa_remove
virtio-blk: Remove BUG_ON() in virtio_queue_rq()
virtio-blk: Don't use MAX_DISCARD_SEGMENTS if max_discard_seg is zero
vhost: fix hung thread due to erroneous iotlb entries
vduse: Fix returning wrong type in vduse_domain_alloc_iova()
vdpa/mlx5: add validation for VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET command
vdpa/mlx5: should verify CTRL_VQ feature exists for MQ
vdpa: factor out vdpa_set_features_unlocked for vdpa internal use
virtio_console: break out of buf poll on remove
virtio: document virtio_reset_device
virtio: acknowledge all features before access
virtio: unexport virtio_finalize_features
Unfortunately, we ended up merging an old version of the patch "fix info
leak with DMA_FROM_DEVICE" instead of merging the latest one. Christoph
(the swiotlb maintainer), he asked me to create an incremental fix
(after I have pointed this out the mix up, and asked him for guidance).
So here we go.
The main differences between what we got and what was agreed are:
* swiotlb_sync_single_for_device is also required to do an extra bounce
* We decided not to introduce DMA_ATTR_OVERWRITE until we have exploiters
* The implantation of DMA_ATTR_OVERWRITE is flawed: DMA_ATTR_OVERWRITE
must take precedence over DMA_ATTR_SKIP_CPU_SYNC
Thus this patch removes DMA_ATTR_OVERWRITE, and makes
swiotlb_sync_single_for_device() bounce unconditionally (that is, also
when dir == DMA_TO_DEVICE) in order do avoid synchronising back stale
data from the swiotlb buffer.
Let me note, that if the size used with dma_sync_* API is less than the
size used with dma_[un]map_*, under certain circumstances we may still
end up with swiotlb not being transparent. In that sense, this is no
perfect fix either.
To get this bullet proof, we would have to bounce the entire
mapping/bounce buffer. For that we would have to figure out the starting
address, and the size of the mapping in
swiotlb_sync_single_for_device(). While this does seem possible, there
seems to be no firm consensus on how things are supposed to work.
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Fixes: ddbd89deb7 ("swiotlb: fix info leak with DMA_FROM_DEVICE")
Cc: stable@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The esp tunnel GSO handlers use skb_mac_gso_segment to
push the inner packet to the segmentation handlers.
However, skb_mac_gso_segment takes the Ethernet Protocol
ID from 'skb->protocol' which is wrong for inter address
family tunnels. We fix this by introducing a new
skb_eth_gso_segment function.
This function can be used if it is necessary to pass the
Ethernet Protocol ID directly to the segmentation handler.
First users of this function will be the esp4 and esp6
tunnel segmentation handlers.
Fixes: c35fe4106b ("xfrm: Add mode handlers for IPsec on layer 2")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Remove netif_rx_any_context and netif_rx_ni() because there are no more
users in tree.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
PHY drivers such as micrel or dp83640 need to analyze whether a given
skb is a PTP sync message for one step functionality.
In order to avoid code duplication introduce a generic function and
move it to ptp classify.
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The TUN can be used as vhost-net backend. E.g, the tun_net_xmit() is the
interface to forward the skb from TUN to vhost-net/virtio-net.
However, there are many "goto drop" in the TUN driver. Therefore, the
kfree_skb_reason() is involved at each "goto drop" to help userspace
ftrace/ebpf to track the reason for the loss of packets.
The below reasons are introduced:
- SKB_DROP_REASON_DEV_READY
- SKB_DROP_REASON_NOMEM
- SKB_DROP_REASON_HDR_TRUNC
- SKB_DROP_REASON_TAP_FILTER
- SKB_DROP_REASON_TAP_TXFILTER
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The TAP can be used as vhost-net backend. E.g., the tap_handle_frame() is
the interface to forward the skb from TAP to vhost-net/virtio-net.
However, there are many "goto drop" in the TAP driver. Therefore, the
kfree_skb_reason() is involved at each "goto drop" to help userspace
ftrace/ebpf to track the reason for the loss of packets.
The below reasons are introduced:
- SKB_DROP_REASON_SKB_CSUM
- SKB_DROP_REASON_SKB_GSO_SEG
- SKB_DROP_REASON_SKB_UCOPY_FAULT
- SKB_DROP_REASON_DEV_HDR
- SKB_DROP_REASON_FULL_RING
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A deep process chain with many vmas could grow really high. With
default sysctl_max_map_count (64k) and default pid_max (32k) the max
number of vmas in the system is 2147450880 and the refcounter has
headroom of 1073774592 before it reaches REFCOUNT_SATURATED
(3221225472).
Therefore it's unlikely that an anonymous name refcounter will overflow
with these defaults. Currently the max for pid_max is PID_MAX_LIMIT
(4194304) and for sysctl_max_map_count it's INT_MAX (2147483647). In
this configuration anon_vma_name refcount overflow becomes theoretically
possible (that still require heavy sharing of that anon_vma_name between
processes).
kref refcounting interface used in anon_vma_name structure will detect a
counter overflow when it reaches REFCOUNT_SATURATED value but will only
generate a warning and freeze the ref counter. This would lead to the
refcounted object never being freed. A determined attacker could leak
memory like that but it would be rather expensive and inefficient way to
do so.
To ensure anon_vma_name refcount does not overflow, stop anon_vma_name
sharing when the refcount reaches REFCOUNT_MAX (2147483647), which still
leaves INT_MAX/2 (1073741823) values before the counter reaches
REFCOUNT_SATURATED. This should provide enough headroom for raising the
refcounts temporarily.
Link: https://lkml.kernel.org/r/20220223153613.835563-2-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Alexey Gladkov <legion@kernel.org>
Cc: Chris Hyser <chris.hyser@oracle.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Colin Cross <ccross@google.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Xiaofeng Cao <caoxiaofeng@yulong.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
No functional change introduced. vdpa bus driver such as virtio_vdpa
or vhost_vdpa is not supposed to take care of the locking for core
by its own. The locked API vdpa_set_features should suffice the
bus driver's need.
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/1642206481-30721-2-git-send-email-si-wei.liu@oracle.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
The feature negotiation was designed in a way that
makes it possible for devices to know which config
fields will be accessed by drivers.
This is broken since commit 404123c2db ("virtio: allow drivers to
validate features") with fallout in at least block and net. We have a
partial work-around in commit 2f9a174f91 ("virtio: write back
F_VERSION_1 before validate") which at least lets devices find out which
format should config space have, but this is a partial fix: guests
should not access config space without acknowledging features since
otherwise we'll never be able to change the config space format.
To fix, split finalize_features from virtio_finalize_features and
call finalize_features with all feature bits before validation,
and then - if validation changed any bits - once again after.
Since virtio_finalize_features no longer writes out features
rename it to virtio_features_ok - since that is what it does:
checks that features are ok with the device.
As a side effect, this also reduces the amount of hypervisor accesses -
we now only acknowledge features once unless we are clearing any
features when validating (which is uncommon).
IRC I think that this was more or less always the intent in the spec but
unfortunately the way the spec is worded does not say this explicitly, I
plan to address this at the spec level, too.
Acked-by: Jason Wang <jasowang@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 404123c2db ("virtio: allow drivers to validate features")
Fixes: 2f9a174f91 ("virtio: write back F_VERSION_1 before validate")
Cc: "Halil Pasic" <pasic@linux.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_finalize_features is only used internally within virtio.
No reason to export it.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Add reason for skb drops to __netif_receive_skb_core() when packet_type
not found to handle the skb. For this purpose, the drop reason
SKB_DROP_REASON_PTYPE_ABSENT is introduced. Take ether packets for
example, this case mainly happens when L3 protocol is not supported.
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace kfree_skb() used in sch_handle_ingress() with
kfree_skb_reason(). Following drop reasons are introduced:
SKB_DROP_REASON_TC_INGRESS
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace kfree_skb() used in do_xdp_generic() with kfree_skb_reason().
The drop reason SKB_DROP_REASON_XDP is introduced for this case.
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace kfree_skb() used in enqueue_to_backlog() with
kfree_skb_reason(). The skb rop reason SKB_DROP_REASON_CPU_BACKLOG is
introduced for the case of failing to enqueue the skb to the per CPU
backlog queue. The further reason can be backlog queue full or RPS
flow limition, and I think we needn't to make further distinctions.
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add reasons for skb drops to __dev_xmit_skb() by replacing
kfree_skb_list() with kfree_skb_list_reason(). The drop reason of
SKB_DROP_REASON_QDISC_DROP is introduced for qdisc enqueue fails.
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To report reasons of skb drops, introduce the function
kfree_skb_list_reason() and make kfree_skb_list() an inline call to
it. This function will be used in the next commit in
__dev_xmit_skb().
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
