| Commit message (Collapse) | Author | Age | Files | Lines |
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Several Intel networking drivers which support PTP track when Tx timestamps
are skipped or when they timeout without a timestamp from hardware. The
conditions which could cause these events are rare, but it can be useful to
know when and how often they occur.
Implement similar statistics for the ice driver, tx_hwtstamp_skipped,
tx_hwtstamp_timeouts, and tx_hwtstamp_flushed.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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When we create new Rx rings, the cached_phctime field is zero initialized.
This could result in incorrect timestamp reporting due to the cached value
not yet being updated. Although a background task will periodically update
the cached value, ensure it matches the existing cached value in the PF
structure at ring initialization.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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When the user changes the number of queues via ethtool, the driver
allocates new rings. This allocation did not initialize tx_tstamps. This
results in the tx_tstamps field being zero (due to kcalloc allocation), and
would result in a NULL pointer dereference when attempting a transmit
timestamp on the new ring.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth, bpf, can and netfilter.
A little larger than usual but it's all fixes, no late features. It's
large partially because of timing, and partially because of follow ups
to stuff that got merged a week or so before the merge window and
wasn't as widely tested. Maybe the Bluetooth fixes are a little
alarming so we'll address that, but the rest seems okay and not scary.
Notably we're including a fix for the netfilter Kconfig [1], your WiFi
warning [2] and a bluetooth fix which should unblock syzbot [3].
Current release - regressions:
- Bluetooth:
- don't try to cancel uninitialized works [3]
- L2CAP: fix use-after-free caused by l2cap_chan_put
- tls: rx: fix device offload after recent rework
- devlink: fix UAF on failed reload and leftover locks in mlxsw
Current release - new code bugs:
- netfilter:
- flowtable: fix incorrect Kconfig dependencies [1]
- nf_tables: fix crash when nf_trace is enabled
- bpf:
- use proper target btf when exporting attach_btf_obj_id
- arm64: fixes for bpf trampoline support
- Bluetooth:
- ISO: unlock on error path in iso_sock_setsockopt()
- ISO: fix info leak in iso_sock_getsockopt()
- ISO: fix iso_sock_getsockopt for BT_DEFER_SETUP
- ISO: fix memory corruption on iso_pinfo.base
- ISO: fix not using the correct QoS
- hci_conn: fix updating ISO QoS PHY
- phy: dp83867: fix get nvmem cell fail
Previous releases - regressions:
- wifi: cfg80211: fix validating BSS pointers in
__cfg80211_connect_result [2]
- atm: bring back zatm uAPI after ATM had been removed
- properly fix old bug making bonding ARP monitor mode not being able
to work with software devices with lockless Tx
- tap: fix null-deref on skb->dev in dev_parse_header_protocol
- revert "net: usb: ax88179_178a needs FLAG_SEND_ZLP" it helps some
devices and breaks others
- netfilter:
- nf_tables: many fixes rejecting cross-object linking which may
lead to UAFs
- nf_tables: fix null deref due to zeroed list head
- nf_tables: validate variable length element extension
- bgmac: fix a BUG triggered by wrong bytes_compl
- bcmgenet: indicate MAC is in charge of PHY PM
Previous releases - always broken:
- bpf:
- fix bad pointer deref in bpf_sys_bpf() injected via test infra
- disallow non-builtin bpf programs calling the prog_run command
- don't reinit map value in prealloc_lru_pop
- fix UAFs during the read of map iterator fd
- fix invalidity check for values in sk local storage map
- reject sleepable program for non-resched map iterator
- mptcp:
- move subflow cleanup in mptcp_destroy_common()
- do not queue data on closed subflows
- virtio_net: fix memory leak inside XDP_TX with mergeable
- vsock: fix memory leak when multiple threads try to connect()
- rework sk_user_data sharing to prevent psock leaks
- geneve: fix TOS inheriting for ipv4
- tunnels & drivers: do not use RT_TOS for IPv6 flowlabel
- phy: c45 baset1: do not skip aneg configuration if clock role is
not specified
- rose: avoid overflow when /proc displays timer information
- x25: fix call timeouts in blocking connects
- can: mcp251x: fix race condition on receive interrupt
- can: j1939:
- replace user-reachable WARN_ON_ONCE() with netdev_warn_once()
- fix memory leak of skbs in j1939_session_destroy()
Misc:
- docs: bpf: clarify that many things are not uAPI
- seg6: initialize induction variable to first valid array index (to
silence clang vs objtool warning)
- can: ems_usb: fix clang 14's -Wunaligned-access warning"
* tag 'net-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (117 commits)
net: atm: bring back zatm uAPI
dpaa2-eth: trace the allocated address instead of page struct
net: add missing kdoc for struct genl_multicast_group::flags
nfp: fix use-after-free in area_cache_get()
MAINTAINERS: use my korg address for mt7601u
mlxsw: minimal: Fix deadlock in ports creation
bonding: fix reference count leak in balance-alb mode
net: usb: qmi_wwan: Add support for Cinterion MV32
bpf: Shut up kern_sys_bpf warning.
net/tls: Use RCU API to access tls_ctx->netdev
tls: rx: device: don't try to copy too much on detach
tls: rx: device: bound the frag walk
net_sched: cls_route: remove from list when handle is 0
selftests: forwarding: Fix failing tests with old libnet
net: refactor bpf_sk_reuseport_detach()
net: fix refcount bug in sk_psock_get (2)
selftests/bpf: Ensure sleepable program is rejected by hash map iter
selftests/bpf: Add write tests for sk local storage map iterator
selftests/bpf: Add tests for reading a dangling map iter fd
bpf: Only allow sleepable program for resched-able iterator
...
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We should trace the allocated address instead of page struct.
Fixes: 27c874867c4e ("dpaa2-eth: Use a single page per Rx buffer")
Signed-off-by: Chen Lin <chen.lin5@zte.com.cn>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20220811151651.3327-1-chen45464546@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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area_cache_get() is used to distribute cache->area and set cache->id,
and if cache->id is not 0 and cache->area->kref refcount is 0, it will
release the cache->area by nfp_cpp_area_release(). area_cache_get()
set cache->id before cpp->op->area_init() and nfp_cpp_area_acquire().
But if area_init() or nfp_cpp_area_acquire() fails, the cache->id is
is already set but the refcount is not increased as expected. At this
time, calling the nfp_cpp_area_release() will cause use-after-free.
To avoid the use-after-free, set cache->id after area_init() and
nfp_cpp_area_acquire() complete successfully.
Note: This vulnerability is triggerable by providing emulated device
equipped with specified configuration.
BUG: KASAN: use-after-free in nfp6000_area_init (drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c:760)
Write of size 4 at addr ffff888005b7f4a0 by task swapper/0/1
Call Trace:
<TASK>
nfp6000_area_init (drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c:760)
area_cache_get.constprop.8 (drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c:884)
Allocated by task 1:
nfp_cpp_area_alloc_with_name (drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c:303)
nfp_cpp_area_cache_add (drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c:802)
nfp6000_init (drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c:1230)
nfp_cpp_from_operations (drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c:1215)
nfp_pci_probe (drivers/net/ethernet/netronome/nfp/nfp_main.c:744)
Freed by task 1:
kfree (mm/slub.c:4562)
area_cache_get.constprop.8 (drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c:873)
nfp_cpp_read (drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c:924 drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c:973)
nfp_cpp_readl (drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c:48)
Signed-off-by: Jialiang Wang <wangjialiang0806@163.com>
Reviewed-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Acked-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220810073057.4032-1-wangjialiang0806@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Drop devl_lock() / devl_unlock() from ports creation and removal flows
since the devlink instance lock is now taken by mlxsw_core.
Fixes: 72a4c8c94efa ("mlxsw: convert driver to use unlocked devlink API during init/fini")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/f4afce5ab0318617f3866b85274be52542d59b32.1660211614.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit d5410ac7b0ba ("net:bonding:support balance-alb interface
with vlan to bridge") introduced a reference count leak by not releasing
the reference acquired by ip_dev_find(). Remedy this by insuring the
reference is released.
Fixes: d5410ac7b0ba ("net:bonding:support balance-alb interface with vlan to bridge")
Signed-off-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/26758.1660194413@famine
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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There are 2 models for MV32 serials. MV32-W-A is designed
based on Qualcomm SDX62 chip, and MV32-W-B is designed based
on Qualcomm SDX65 chip. So we use 2 different PID to separate it.
Test evidence as below:
T: Bus=03 Lev=01 Prnt=01 Port=02 Cnt=03 Dev#= 3 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1e2d ProdID=00f3 Rev=05.04
S: Manufacturer=Cinterion
S: Product=Cinterion PID 0x00F3 USB Mobile Broadband
S: SerialNumber=d7b4be8d
C: #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=50 Driver=qmi_wwan
I: If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
I: If#=0x3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
T: Bus=03 Lev=01 Prnt=01 Port=02 Cnt=03 Dev#= 10 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1e2d ProdID=00f4 Rev=05.04
S: Manufacturer=Cinterion
S: Product=Cinterion PID 0x00F4 USB Mobile Broadband
S: SerialNumber=d095087d
C: #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=50 Driver=qmi_wwan
I: If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
I: If#=0x3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
Signed-off-by: Slark Xiao <slark_xiao@163.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Link: https://lore.kernel.org/r/20220810014521.9383-1-slark_xiao@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Currently, tls_device_down synchronizes with tls_device_resync_rx using
RCU, however, the pointer to netdev is stored using WRITE_ONCE and
loaded using READ_ONCE.
Although such approach is technically correct (rcu_dereference is
essentially a READ_ONCE, and rcu_assign_pointer uses WRITE_ONCE to store
NULL), using special RCU helpers for pointers is more valid, as it
includes additional checks and might change the implementation
transparently to the callers.
Mark the netdev pointer as __rcu and use the correct RCU helpers to
access it. For non-concurrent access pass the right conditions that
guarantee safe access (locks taken, refcount value). Also use the
correct helper in mlx5e, where even READ_ONCE was missing.
The transition to RCU exposes existing issues, fixed by this commit:
1. bond_tls_device_xmit could read netdev twice, and it could become
NULL the second time, after the NULL check passed.
2. Drivers shouldn't stop processing the last packet if tls_device_down
just set netdev to NULL, before tls_dev_del was called. This prevents a
possible packet drop when transitioning to the fallback software mode.
Fixes: 89df6a810470 ("net/bonding: Implement TLS TX device offload")
Fixes: c55dcdd435aa ("net/tls: Fix use-after-free after the TLS device goes down and up")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Link: https://lore.kernel.org/r/20220810081602.1435800-1-maximmi@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In my test, balance-alb bonding with two slaves eth0 and eth1,
and then Bond0.150 is created with vlan id attached bond0.
After adding bond0.150 into one linux bridge, I noted that Bond0,
bond0.150 and bridge were assigned to the same MAC as eth0.
Once bond0.150 receives a packet whose dest IP is bridge's
and dest MAC is eth1's, the linux bridge will not match
eth1's MAC entry in FDB, and not handle it as expected.
The patch fix the issue, and diagram as below:
eth1(mac:eth1_mac)--bond0(balance-alb,mac:eth0_mac)--eth0(mac:eth0_mac)
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bond0.150(mac:eth0_mac)
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bridge(ip:br_ip, mac:eth0_mac)--other port
Suggested-by: Hu Yadi <huyd12@chinatelecom.cn>
Signed-off-by: Sun Shouxin <sunshouxin@chinatelecom.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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OutOctetsProtected, OutOctetsEncrypted, InOctetsValidated, and
InOctetsDecrypted were incrementing by the total number of octets in frames
instead of by the number of octets of User Data in frames.
The Controlled Port statistics ifOutOctets and ifInOctets were incrementing
by the total number of octets instead of the number of octets of the MSDUs
plus octets of the destination and source MAC addresses.
The Controlled Port statistics ifInDiscards and ifInErrors were not
incrementing each time the counters they aggregate were.
The Controlled Port statistic ifInErrors was not included in the output of
macsec_get_stats64 so the value was not present in ip commands output.
The ReceiveSA counters InPktsNotValid, InPktsNotUsingSA, and InPktsUnusedSA
were not incrementing.
Signed-off-by: Clayton Yager <Clayton_Yager@selinc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit 36a15e1cb134c0395261ba1940762703f778438c.
The usage of FLAG_SEND_ZLP causes problems to other firmware/hardware
versions that have no issues.
The FLAG_SEND_ZLP is not safe to use in this context.
See:
https://patchwork.ozlabs.org/project/netdev/patch/1270599787.8900.8.camel@Linuxdev4-laptop/#118378
The original problem needs another way to solve.
Fixes: 36a15e1cb134 ("net: usb: ax88179_178a needs FLAG_SEND_ZLP")
Cc: stable@vger.kernel.org
Reported-by: Ronald Wahl <ronald.wahl@raritan.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216327
Link: https://bugs.archlinux.org/task/75491
Signed-off-by: Jose Alonso <joalonsof@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
this is a pull request of 4 patches for net/master, with the
whitespace issue fixed.
Fedor Pchelkin contributes 2 fixes for the j1939 CAN protocol.
A patch by me for the ems_usb driver fixes an unaligned access
warning.
Sebastian Würl's patch for the mcp251x driver fixes a race condition
in the receive interrupt.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The mcp251x driver uses both receiving mailboxes of the CAN controller
chips. For retrieving the CAN frames from the controller via SPI, it checks
once per interrupt which mailboxes have been filled and will retrieve the
messages accordingly.
This introduces a race condition, as another CAN frame can enter mailbox 1
while mailbox 0 is emptied. If now another CAN frame enters mailbox 0 until
the interrupt handler is called next, mailbox 0 is emptied before
mailbox 1, leading to out-of-order CAN frames in the network device.
This is fixed by checking the interrupt flags once again after freeing
mailbox 0, to correctly also empty mailbox 1 before leaving the handler.
For reproducing the bug I created the following setup:
- Two CAN devices, one Raspberry Pi with MCP2515, the other can be any.
- Setup CAN to 1 MHz
- Spam bursts of 5 CAN-messages with increasing CAN-ids
- Continue sending the bursts while sleeping a second between the bursts
- Check on the RPi whether the received messages have increasing CAN-ids
- Without this patch, every burst of messages will contain a flipped pair
v3: https://lore.kernel.org/all/20220804075914.67569-1-sebastian.wuerl@ororatech.com
v2: https://lore.kernel.org/all/20220804064803.63157-1-sebastian.wuerl@ororatech.com
v1: https://lore.kernel.org/all/20220803153300.58732-1-sebastian.wuerl@ororatech.com
Fixes: bf66f3736a94 ("can: mcp251x: Move to threaded interrupts instead of workqueues.")
Signed-off-by: Sebastian Würl <sebastian.wuerl@ororatech.com>
Link: https://lore.kernel.org/all/20220804081411.68567-1-sebastian.wuerl@ororatech.com
[mkl: reduce scope of intf1, eflag1]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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clang emits a -Wunaligned-access warning on struct __packed
ems_cpc_msg.
The reason is that the anonymous union msg (not declared as packed) is
being packed right after some non naturally aligned variables (3*8
bits + 2*32) inside a packed struct:
| struct __packed ems_cpc_msg {
| u8 type; /* type of message */
| u8 length; /* length of data within union 'msg' */
| u8 msgid; /* confirmation handle */
| __le32 ts_sec; /* timestamp in seconds */
| __le32 ts_nsec; /* timestamp in nano seconds */
| /* ^ not naturally aligned */
|
| union {
| /* ^ not declared as packed */
| u8 generic[64];
| struct cpc_can_msg can_msg;
| struct cpc_can_params can_params;
| struct cpc_confirm confirmation;
| struct cpc_overrun overrun;
| struct cpc_can_error error;
| struct cpc_can_err_counter err_counter;
| u8 can_state;
| } msg;
| };
Starting from LLVM 14, having an unpacked struct nested in a packed
struct triggers a warning. c.f. [1].
Fix the warning by marking the anonymous union as packed.
[1] https://github.com/llvm/llvm-project/issues/55520
Fixes: 702171adeed3 ("ems_usb: Added support for EMS CPC-USB/ARM7 CAN/USB interface")
Link: https://lore.kernel.org/all/20220802094021.959858-1-mkl@pengutronix.de
Cc: Gerhard Uttenthaler <uttenthaler@ems-wuensche.com>
Cc: Sebastian Haas <haas@ems-wuensche.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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According to Guillaume Nault RT_TOS should never be used for IPv6.
Quote:
RT_TOS() is an old macro used to interprete IPv4 TOS as described in
the obsolete RFC 1349. It's conceptually wrong to use it even in IPv4
code, although, given the current state of the code, most of the
existing calls have no consequence.
But using RT_TOS() in IPv6 code is always a bug: IPv6 never had a "TOS"
field to be interpreted the RFC 1349 way. There's no historical
compatibility to worry about.
Fixes: ce99f6b97fcd ("net/mlx5e: Support SRIOV TC encapsulation offloads for IPv6 tunnels")
Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Matthias May <matthias.may@westermo.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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According to Guillaume Nault RT_TOS should never be used for IPv6.
Quote:
RT_TOS() is an old macro used to interprete IPv4 TOS as described in
the obsolete RFC 1349. It's conceptually wrong to use it even in IPv4
code, although, given the current state of the code, most of the
existing calls have no consequence.
But using RT_TOS() in IPv6 code is always a bug: IPv6 never had a "TOS"
field to be interpreted the RFC 1349 way. There's no historical
compatibility to worry about.
Fixes: 1400615d64cf ("vxlan: allow setting ipv6 traffic class")
Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Matthias May <matthias.may@westermo.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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According to Guillaume Nault RT_TOS should never be used for IPv6.
Quote:
RT_TOS() is an old macro used to interprete IPv4 TOS as described in
the obsolete RFC 1349. It's conceptually wrong to use it even in IPv4
code, although, given the current state of the code, most of the
existing calls have no consequence.
But using RT_TOS() in IPv6 code is always a bug: IPv6 never had a "TOS"
field to be interpreted the RFC 1349 way. There's no historical
compatibility to worry about.
Fixes: 3a56f86f1be6 ("geneve: handle ipv6 priority like ipv4 tos")
Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Matthias May <matthias.may@westermo.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The current code retrieves the TOS field after the lookup
on the ipv4 routing table. The routing process currently
only allows routing based on the original 3 TOS bits, and
not on the full 6 DSCP bits.
As a result the retrieved TOS is cut to the 3 bits.
However for inheriting purposes the full 6 bits should be used.
Extract the full 6 bits before the route lookup and use
that instead of the cut off 3 TOS bits.
Fixes: e305ac6cf5a1 ("geneve: Add support to collect tunnel metadata.")
Signed-off-by: Matthias May <matthias.may@westermo.com>
Acked-by: Guillaume Nault <gnault@redhat.com>
Link: https://lore.kernel.org/r/20220805190006.8078-1-matthias.may@westermo.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The final update statement of the for loop exceeds the array range, the
dereference of self->aq_vec[i] is not checked and then leads to the
index out of range error.
Also fixed this kind of coding style in other for loop.
[ 97.937604] UBSAN: array-index-out-of-bounds in drivers/net/ethernet/aquantia/atlantic/aq_nic.c:1404:48
[ 97.937607] index 8 is out of range for type 'aq_vec_s *[8]'
[ 97.937608] CPU: 38 PID: 3767 Comm: kworker/u256:18 Not tainted 5.19.0+ #2
[ 97.937610] Hardware name: Dell Inc. Precision 7865 Tower/, BIOS 1.0.0 06/12/2022
[ 97.937611] Workqueue: events_unbound async_run_entry_fn
[ 97.937616] Call Trace:
[ 97.937617] <TASK>
[ 97.937619] dump_stack_lvl+0x49/0x63
[ 97.937624] dump_stack+0x10/0x16
[ 97.937626] ubsan_epilogue+0x9/0x3f
[ 97.937627] __ubsan_handle_out_of_bounds.cold+0x44/0x49
[ 97.937629] ? __scm_send+0x348/0x440
[ 97.937632] ? aq_vec_stop+0x72/0x80 [atlantic]
[ 97.937639] aq_nic_stop+0x1b6/0x1c0 [atlantic]
[ 97.937644] aq_suspend_common+0x88/0x90 [atlantic]
[ 97.937648] aq_pm_suspend_poweroff+0xe/0x20 [atlantic]
[ 97.937653] pci_pm_suspend+0x7e/0x1a0
[ 97.937655] ? pci_pm_suspend_noirq+0x2b0/0x2b0
[ 97.937657] dpm_run_callback+0x54/0x190
[ 97.937660] __device_suspend+0x14c/0x4d0
[ 97.937661] async_suspend+0x23/0x70
[ 97.937663] async_run_entry_fn+0x33/0x120
[ 97.937664] process_one_work+0x21f/0x3f0
[ 97.937666] worker_thread+0x4a/0x3c0
[ 97.937668] ? process_one_work+0x3f0/0x3f0
[ 97.937669] kthread+0xf0/0x120
[ 97.937671] ? kthread_complete_and_exit+0x20/0x20
[ 97.937672] ret_from_fork+0x22/0x30
[ 97.937676] </TASK>
v2. fixed "warning: variable 'aq_vec' set but not used"
v3. simplified a for loop
Fixes: 97bde5c4f909 ("net: ethernet: aquantia: Support for NIC-specific code")
Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com>
Acked-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Link: https://lore.kernel.org/r/20220808081845.42005-1-acelan.kao@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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WARNING: suspicious RCU usage
5.2.0-rc2-00605-g2638eb8b50cfc #1 Not tainted
drivers/net/plip/plip.c:1110 suspicious rcu_dereference_check() usage!
plip_open is called with RTNL held, switch to the correct helper.
Fixes: 2638eb8b50cf ("net: ipv4: provide __rcu annotation for ifa_list")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20220807115304.13257-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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On one of our machines we got:
kernel BUG at lib/dynamic_queue_limits.c:27!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
CPU: 0 PID: 1166 Comm: irq/41-bgmac Tainted: G W O 4.14.275-rt132 #1
Hardware name: BRCM XGS iProc
task: ee3415c0 task.stack: ee32a000
PC is at dql_completed+0x168/0x178
LR is at bgmac_poll+0x18c/0x6d8
pc : [<c03b9430>] lr : [<c04b5a18>] psr: 800a0313
sp : ee32be14 ip : 000005ea fp : 00000bd4
r10: ee558500 r9 : c0116298 r8 : 00000002
r7 : 00000000 r6 : ef128810 r5 : 01993267 r4 : 01993851
r3 : ee558000 r2 : 000070e1 r1 : 00000bd4 r0 : ee52c180
Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
Control: 12c5387d Table: 8e88c04a DAC: 00000051
Process irq/41-bgmac (pid: 1166, stack limit = 0xee32a210)
Stack: (0xee32be14 to 0xee32c000)
be00: ee558520 ee52c100 ef128810
be20: 00000000 00000002 c0116298 c04b5a18 00000000 c0a0c8c4 c0951780 00000040
be40: c0701780 ee558500 ee55d520 ef05b340 ef6f9780 ee558520 00000001 00000040
be60: ffffe000 c0a56878 ef6fa040 c0952040 0000012c c0528744 ef6f97b0 fffcfb6a
be80: c0a04104 2eda8000 c0a0c4ec c0a0d368 ee32bf44 c0153534 ee32be98 ee32be98
bea0: ee32bea0 ee32bea0 ee32bea8 ee32bea8 00000000 c01462e4 ffffe000 ef6f22a8
bec0: ffffe000 00000008 ee32bee4 c0147430 ffffe000 c094a2a8 00000003 ffffe000
bee0: c0a54528 00208040 0000000c c0a0c8c4 c0a65980 c0124d3c 00000008 ee558520
bf00: c094a23c c0a02080 00000000 c07a9910 ef136970 ef136970 ee30a440 ef136900
bf20: ee30a440 00000001 ef136900 ee30a440 c016d990 00000000 c0108db0 c012500c
bf40: ef136900 c016da14 ee30a464 ffffe000 00000001 c016dd14 00000000 c016db28
bf60: ffffe000 ee21a080 ee30a400 00000000 ee32a000 ee30a440 c016dbfc ee25fd70
bf80: ee21a09c c013edcc ee32a000 ee30a400 c013ec7c 00000000 00000000 00000000
bfa0: 00000000 00000000 00000000 c0108470 00000000 00000000 00000000 00000000
bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[<c03b9430>] (dql_completed) from [<c04b5a18>] (bgmac_poll+0x18c/0x6d8)
[<c04b5a18>] (bgmac_poll) from [<c0528744>] (net_rx_action+0x1c4/0x494)
[<c0528744>] (net_rx_action) from [<c0124d3c>] (do_current_softirqs+0x1ec/0x43c)
[<c0124d3c>] (do_current_softirqs) from [<c012500c>] (__local_bh_enable+0x80/0x98)
[<c012500c>] (__local_bh_enable) from [<c016da14>] (irq_forced_thread_fn+0x84/0x98)
[<c016da14>] (irq_forced_thread_fn) from [<c016dd14>] (irq_thread+0x118/0x1c0)
[<c016dd14>] (irq_thread) from [<c013edcc>] (kthread+0x150/0x158)
[<c013edcc>] (kthread) from [<c0108470>] (ret_from_fork+0x14/0x24)
Code: a83f15e0 0200001a 0630a0e1 c3ffffea (f201f0e7)
The issue seems similar to commit 90b3b339364c ("net: hisilicon: Fix a BUG
trigered by wrong bytes_compl") and potentially introduced by commit
b38c83dd0866 ("bgmac: simplify tx ring index handling").
If there is an RX interrupt between setting ring->end
and netdev_sent_queue() we can hit the BUG_ON as bgmac_dma_tx_free()
can miscalculate the queue size while called from bgmac_poll().
The machine which triggered the BUG runs a v4.14 RT kernel - but the issue
seems present in mainline too.
Fixes: b38c83dd0866 ("bgmac: simplify tx ring index handling")
Signed-off-by: Sandor Bodo-Merle <sbodomerle@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220808173939.193804-1-sbodomerle@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The way in which dsa_tree_change_tag_proto() works is that when
dsa_tree_notify() fails, it doesn't know whether the operation failed
mid way in a multi-switch tree, or it failed for a single-switch tree.
So even though drivers need to fail cleanly in
ds->ops->change_tag_protocol(), DSA will still call dsa_tree_notify()
again, to restore the old tag protocol for potential switches in the
tree where the change did succeeed (before failing for others).
This means for the felix driver that if we report an error in
felix_change_tag_protocol(), we'll get another call where proto_ops ==
old_proto_ops. If we proceed to act upon that, we may do unexpected
things. For example, we will call dsa_tag_8021q_register() twice in a
row, without any dsa_tag_8021q_unregister() in between. Then we will
actually call dsa_tag_8021q_unregister() via old_proto_ops->teardown,
which (if it manages to run at all, after walking through corrupted data
structures) will leave the ports inoperational anyway.
The bug can be readily reproduced if we force an error while in
tag_8021q mode; this crashes the kernel.
echo ocelot-8021q > /sys/class/net/eno2/dsa/tagging
echo edsa > /sys/class/net/eno2/dsa/tagging # -EPROTONOSUPPORT
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000014
Call trace:
vcap_entry_get+0x24/0x124
ocelot_vcap_filter_del+0x198/0x270
felix_tag_8021q_vlan_del+0xd4/0x21c
dsa_switch_tag_8021q_vlan_del+0x168/0x2cc
dsa_switch_event+0x68/0x1170
dsa_tree_notify+0x14/0x34
dsa_port_tag_8021q_vlan_del+0x84/0x110
dsa_tag_8021q_unregister+0x15c/0x1c0
felix_tag_8021q_teardown+0x16c/0x180
felix_change_tag_protocol+0x1bc/0x230
dsa_switch_event+0x14c/0x1170
dsa_tree_change_tag_proto+0x118/0x1c0
Fixes: 7a29d220f4c0 ("net: dsa: felix: reimplement tagging protocol change with function pointers")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220808125127.3344094-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Kalle Valo says:
====================
wireless fixes for v6.0
First set of fixes for v6.0. Small one this time, fix a cfg80211
warning seen with brcmfmac and remove an unncessary inline keyword
from wilc1000.
* tag 'wireless-2022-08-09' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: wilc1000: fix spurious inline in wilc_handle_disconnect()
wifi: cfg80211: Fix validating BSS pointers in __cfg80211_connect_result
====================
Link: https://lore.kernel.org/r/20220809164756.B1DAEC433D6@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Sparse warns:
drivers/net/wireless/microchip/wilc1000/hif.h:218:35: error: marked inline, but without a definition
Remove the inline, it's not needed.
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Acked-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220801110440.13144-1-kvalo@kernel.org
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If CONFIG_NVMEM is not set of_nvmem_cell_get, of_nvmem_device_get
functions will return ERR_PTR(-EOPNOTSUPP) and "failed to get nvmem
cell io_impedance_ctrl" error would be reported despite "io_impedance_ctrl"
is completely missing in Device Tree and we should use default values.
Check -EOPNOTSUPP togather with -ENOENT to avoid this situation.
Fixes: 5c2d0a6a0701 ("net: phy: dp83867: implement support for io_impedance_ctrl nvmem cell")
Signed-off-by: Nikita Shubin <n.shubin@yadro.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220805084843.24542-1-nikita.shubin@maquefel.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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specified
In case master/slave clock role is not specified (which is default), the
aneg registers will not be written.
The visible impact of this is missing pause advertisement.
So, rework genphy_c45_baset1_an_config_aneg() to be able to write
advertisement registers even if clock role is unknown.
Fixes: 3da8ffd8545f ("net: phy: Add 10BASE-T1L support in phy-c45")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220805073159.908643-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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closed
min_gate_len[tc] is supposed to track the shortest interval of
continuously open gates for a traffic class. For example, in the
following case:
TC 76543210
t0 00000001b 200000 ns
t1 00000010b 200000 ns
min_gate_len[0] and min_gate_len[1] should be 200000, while
min_gate_len[2-7] should be 0.
However what happens is that min_gate_len[0] is 200000, but
min_gate_len[1] ends up being 0 (despite gate_len[1] being 200000 at the
point where the logic detects the gate close event for TC 1).
The problem is that the code considers a "gate close" event whenever it
sees that there is a 0 for that TC (essentially it's level rather than
edge triggered). By doing that, any time a gate is seen as closed
without having been open prior, gate_len, which is 0, will be written
into min_gate_len. Once min_gate_len becomes 0, it's impossible for it
to track anything higher than that (the length of actually open
intervals).
To fix this, we make the writing to min_gate_len[tc] be edge-triggered,
which avoids writes for gates that are closed in consecutive intervals.
However what this does is it makes us need to special-case the
permanently closed gates at the end.
Fixes: 55a515b1f5a9 ("net: dsa: felix: drop oversized frames with tc-taprio instead of hanging the port")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220804202817.1677572-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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If tsnep_tx_map() fails, then tsnep_tx_unmap() shall start at the write
index like tsnep_tx_map(). This is different to the normal operation.
Thus, add an additional parameter to tsnep_tx_unmap() to enable start at
different positions for successful TX and failed TX.
Fixes: 403f69bbdbad ("tsnep: Add TSN endpoint Ethernet MAC driver")
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kernel test robot found the following warning:
drivers/net/ethernet/engleder/tsnep_main.c:1254:34: warning:
'tsnep_of_match' defined but not used [-Wunused-const-variable=]
of_match_ptr() compiles into NULL if CONFIG_OF is disabled.
tsnep_of_match exists always so use of of_match_ptr() is useless.
Fix warning by dropping of_match_ptr().
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When we call xdp_convert_buff_to_frame() to get xdpf, if it returns
NULL, we should check if xdp_page was allocated by xdp_linearize_page().
If it is newly allocated, it should be freed here alone. Just like any
other "goto err_xdp".
Fixes: 44fa2dbd4759 ("xdp: transition into using xdp_frame for ndo_xdp_xmit")
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Avoid the PHY library call unnecessarily into the suspend/resume functions by
setting phydev->mac_managed_pm to true. The GENET driver essentially does
exactly what mdio_bus_phy_resume() does by calling phy_init_hw() plus
phy_resume().
Fixes: fba863b81604 ("net: phy: make PHY PM ops a no-op if MAC driver manages PHY PM")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220804173605.1266574-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The text was copy&pasted from Intel, adjust it to say Wangxun.
Reported-by: Ingo Saitz <ingo@hannover.ccc.de>
Fixes: 3ce7547e5b71 ("net: txgbe: Add build support for txgbe")
Link: https://lore.kernel.org/r/20220804182641.1442000-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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For packets scheduled to RPM and LBK, NIX_AF_PSE_CHANNEL_LEVEL[BP_LEVEL]
selects the TL3 or TL2 scheduling level as the one used for link/channel
selection and backpressure. For each scheduling queue at the selected
level: Setting NIX_AF_TL3_TL2(0..255)_LINK(0..12)_CFG[ENA] = 1 allows
the TL3/TL2 queue to schedule packets to a specified RPM or LBK link
and channel.
There is an issue in the code where NIX_AF_PSE_CHANNEL_LEVEL[BP_LEVEL]
is set to TL3 where as the NIX_AF_TL3_TL2(0..255)_LINK(0..12)_CFG is
configured for TL2 queue in some cases. As a result packets will not
transmit on that link/channel. This patch fixes the issue by configuring
the NIX_AF_TL3_TL2(0..255)_LINK(0..12)_CFG register depending on the
NIX_AF_PSE_CHANNEL_LEVEL[BP_LEVEL] value.
Fixes: caa2da34fd25a ("octeontx2-pf: Initialize and config queues")
Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Link: https://lore.kernel.org/r/20220802142813.25031-1-naveenm@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Given a field with its location/offset in input packet,
the key checking logic verifies whether extracting the
field can be supported or not based on the mkex profile
loaded in hardware. This logic is wrong wrt source mac
and this patch fixes that.
Fixes: 9b179a960a96 ("octeontx2-af: Generate key field bit mask from KEX profile")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The teardown sequence in FLR handler returns if no NIX LF
is attached to PF/VF because it indicates that graceful
shutdown of resources already happened. But there is a
chance of all allocated MCAM entries not being freed by
PF/VF. Hence free mcam entries even in case of detached LF.
Fixes: c554f9c1574e ("octeontx2-af: Teardown NPA, NIX LF upon receiving FLR")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The packet parser profile supplied as firmware may not
be present all the time and default profile is used mostly.
Hence suppress firmware loading warning from kernel due to
absence of firmware in kernel image.
Fixes: 3a7244152f9c ("octeontx2-af: add support for custom KPU entries")
Signed-off-by: Harman Kalra <hkalra@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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NPC_PARSE_NIBBLE for TX interface has to be equal to the RX one for some
silicon revisions. Mistakenly this fixup was only applied to the default
MKEX profile while it should also be applied to any loaded profile.
Fixes: 1c1935c9945d ("octeontx2-af: Add NIX1 interfaces to NPC")
Signed-off-by: Stanislaw Kardach <skardach@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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bnxt_ethtool.h is included twice in bnxt_devlink.c,
remove one of them.
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=1817
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220804003722.54088-1-yang.lee@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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is null
Fixes a NULL pointer derefence bug triggered from tap driver.
When tap_get_user calls virtio_net_hdr_to_skb the skb->dev is null
(in tap.c skb->dev is set after the call to virtio_net_hdr_to_skb)
virtio_net_hdr_to_skb calls dev_parse_header_protocol which
needs skb->dev field to be valid.
The line that trigers the bug is in dev_parse_header_protocol
(dev is at offset 0x10 from skb and is stored in RAX register)
if (!dev->header_ops || !dev->header_ops->parse_protocol)
22e1: mov 0x10(%rbx),%rax
22e5: mov 0x230(%rax),%rax
Setting skb->dev before the call in tap.c fixes the issue.
BUG: kernel NULL pointer dereference, address: 0000000000000230
RIP: 0010:virtio_net_hdr_to_skb.constprop.0+0x335/0x410 [tap]
Code: c0 0f 85 b7 fd ff ff eb d4 41 39 c6 77 cf 29 c6 48 89 df 44 01 f6 e8 7a 79 83 c1 48 85 c0 0f 85 d9 fd ff ff eb b7 48 8b 43 10 <48> 8b 80 30 02 00 00 48 85 c0 74 55 48 8b 40 28 48 85 c0 74 4c 48
RSP: 0018:ffffc90005c27c38 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888298f25300 RCX: 0000000000000010
RDX: 0000000000000005 RSI: ffffc90005c27cb6 RDI: ffff888298f25300
RBP: ffffc90005c27c80 R08: 00000000ffffffea R09: 00000000000007e8
R10: ffff88858ec77458 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000014 R14: ffffc90005c27e08 R15: ffffc90005c27cb6
FS: 0000000000000000(0000) GS:ffff88858ec40000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000230 CR3: 0000000281408006 CR4: 00000000003706e0
Call Trace:
tap_get_user+0x3f1/0x540 [tap]
tap_sendmsg+0x56/0x362 [tap]
? get_tx_bufs+0xc2/0x1e0 [vhost_net]
handle_tx_copy+0x114/0x670 [vhost_net]
handle_tx+0xb0/0xe0 [vhost_net]
handle_tx_kick+0x15/0x20 [vhost_net]
vhost_worker+0x7b/0xc0 [vhost]
? vhost_vring_call_reset+0x40/0x40 [vhost]
kthread+0xfa/0x120
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x1f/0x30
Fixes: 924a9bc362a5 ("net: check if protocol extracted by virtio_net_hdr_set_proto is correct")
Signed-off-by: Cezar Bulinaru <cbulinaru@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The port flag isn't set to `NFP_PORT_CHANGED` when using
`ethtool -m DEVNAME` before, so the port state (e.g. interface)
cannot be updated. Therefore, it caused that `ethtool -m DEVNAME`
sometimes cannot read the correct information.
E.g. `ethtool -m DEVNAME` cannot work when load driver before plug
in optical module, as the port interface is still NONE without port
update.
Now update the port state before sending info to NIC to ensure that
port interface is correct (latest state).
Fixes: 61f7c6f44870 ("nfp: implement ethtool get module EEPROM")
Reviewed-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Yu Xiao <yu.xiao@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220802093355.69065-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Calling mdio_bus_phy_resume() with neither the PHY state machine set to
PHY_HALTED nor phydev->mac_managed_pm set to true is a good indication
that we can produce a race condition looking like this:
CPU0 CPU1
bcmgenet_resume
-> phy_resume
-> phy_init_hw
-> phy_start
-> phy_resume
phy_start_aneg()
mdio_bus_phy_resume
-> phy_resume
-> phy_write(..., BMCR_RESET)
-> usleep() -> phy_read()
with the phy_resume() function triggering a PHY behavior that might have
to be worked around with (see bf8bfc4336f7 ("net: phy: broadcom: Fix
brcm_fet_config_init()") for instance) that ultimately leads to an error
reading from the PHY.
Fixes: fba863b81604 ("net: phy: make PHY PM ops a no-op if MAC driver manages PHY PM")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220801233403.258871-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This reverts commit e66e257a5d8368d9c0ba13d4630f474436533e8b. The veth
driver no longer needs these hacks which are slightly detrimential to
the fast path performance, because the bonding driver is keeping track
of TX times of ARP and NS probes by itself, which it should.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The bonding driver piggybacks on time stamps kept by the network stack
for the purpose of the netdev TX watchdog, and this is problematic
because it does not work with NETIF_F_LLTX devices.
It is hard to say why the driver looks at dev_trans_start() of the
slave->dev, considering that this is updated even by non-ARP/NS probes
sent by us, and even by traffic not sent by us at all (for example PTP
on physical slave devices). ARP monitoring in active-backup mode appears
to still work even if we track only the last TX time of actual ARP
probes.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull bitmap updates from Yury Norov:
- fix the duplicated comments on bitmap_to_arr64() (Qu Wenruo)
- optimize out non-atomic bitops on compile-time constants (Alexander
Lobakin)
- cleanup bitmap-related headers (Yury Norov)
- x86/olpc: fix 'logical not is only applied to the left hand side'
(Alexander Lobakin)
- lib/nodemask: inline wrappers around bitmap (Yury Norov)
* tag 'bitmap-6.0-rc1' of https://github.com/norov/linux: (26 commits)
lib/nodemask: inline next_node_in() and node_random()
powerpc: drop dependency on <asm/machdep.h> in archrandom.h
x86/olpc: fix 'logical not is only applied to the left hand side'
lib/cpumask: move some one-line wrappers to header file
headers/deps: mm: align MANITAINERS and Docs with new gfp.h structure
headers/deps: mm: Split <linux/gfp_types.h> out of <linux/gfp.h>
headers/deps: mm: Optimize <linux/gfp.h> header dependencies
lib/cpumask: move trivial wrappers around find_bit to the header
lib/cpumask: change return types to unsigned where appropriate
cpumask: change return types to bool where appropriate
lib/bitmap: change type of bitmap_weight to unsigned long
lib/bitmap: change return types to bool where appropriate
arm: align find_bit declarations with generic kernel
iommu/vt-d: avoid invalid memory access via node_online(NUMA_NO_NODE)
lib/test_bitmap: test the tail after bitmap_to_arr64()
lib/bitmap: fix off-by-one in bitmap_to_arr64()
lib: test_bitmap: add compile-time optimization/evaluations assertions
bitmap: don't assume compiler evaluates small mem*() builtins calls
net/ice: fix initializing the bitmap in the switch code
bitops: let optimize out non-atomic bitops on compile-time constants
...
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bitmap_weight() doesn't return negative values, so change it's type
to unsigned long. It may help compiler to generate better code and
catch bugs.
Signed-off-by: Yury Norov <yury.norov@gmail.com>
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Kbuild spotted the following bug during the testing of one of
the optimizations:
In file included from include/linux/cpumask.h:12,
[...]
from drivers/net/ethernet/intel/ice/ice_switch.c:4:
drivers/net/ethernet/intel/ice/ice_switch.c: In function 'ice_find_free_recp_res_idx.constprop':
include/linux/bitmap.h:447:22: warning: 'possible_idx[0]' is used uninitialized [-Wuninitialized]
447 | *map |= GENMASK(start + nbits - 1, start);
| ^~
In file included from drivers/net/ethernet/intel/ice/ice.h:7,
from drivers/net/ethernet/intel/ice/ice_lib.h:7,
from drivers/net/ethernet/intel/ice/ice_switch.c:4:
drivers/net/ethernet/intel/ice/ice_switch.c:4929:24: note: 'possible_idx[0]' was declared here
4929 | DECLARE_BITMAP(possible_idx, ICE_MAX_FV_WORDS);
| ^~~~~~~~~~~~
include/linux/types.h:11:23: note: in definition of macro 'DECLARE_BITMAP'
11 | unsigned long name[BITS_TO_LONGS(bits)]
| ^~~~
%ICE_MAX_FV_WORDS is 48, so bitmap_set() here was initializing only
48 bits, leaving a junk in the rest 16.
It was previously hidden due to that filling 48 bits makes
bitmap_set() call external __bitmap_set(), but after making it use
plain bit arithmetics on small bitmaps, compilers started seeing
the issue. It was still working because those 16 weren't used
anywhere anyhow.
bitmap_{clear,set}() are not really intended to initialize bitmaps,
rather to modify already initialized ones, as they don't do anything
past the passed number of bits. The correct function to do this in
that particular case is bitmap_fill(), so use it here. It will do
`*possible_idx = ~0UL` instead of `*possible_idx |= GENMASK(47, 0)`,
not leaving anything in an undefined state.
Fixes: fd2a6b71e300 ("ice: create advanced switch recipe")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Add support for syscall stack randomization
- Add support for atomic operations to the 32 & 64-bit BPF JIT
- Full support for KASAN on 64-bit Book3E
- Add a watchdog driver for the new PowerVM hypervisor watchdog
- Add a number of new selftests for the Power10 PMU support
- Add a driver for the PowerVM Platform KeyStore
- Increase the NMI watchdog timeout during live partition migration, to
avoid timeouts due to increased memory access latency
- Add support for using the 'linux,pci-domain' device tree property for
PCI domain assignment
- Many other small features and fixes
Thanks to Alexey Kardashevskiy, Andy Shevchenko, Arnd Bergmann, Athira
Rajeev, Bagas Sanjaya, Christophe Leroy, Erhard Furtner, Fabiano Rosas,
Greg Kroah-Hartman, Greg Kurz, Haowen Bai, Hari Bathini, Jason A.
Donenfeld, Jason Wang, Jiang Jian, Joel Stanley, Juerg Haefliger, Kajol
Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Masahiro Yamada,
Maxime Bizon, Miaoqian Lin, Murilo Opsfelder Araújo, Nathan Lynch,
Naveen N. Rao, Nayna Jain, Nicholas Piggin, Ning Qiang, Pali Rohár,
Petr Mladek, Rashmica Gupta, Sachin Sant, Scott Cheloha, Segher
Boessenkool, Stephen Rothwell, Uwe Kleine-König, Wolfram Sang, Xiu
Jianfeng, and Zhouyi Zhou.
* tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (191 commits)
powerpc/64e: Fix kexec build error
EDAC/ppc_4xx: Include required of_irq header directly
powerpc/pci: Fix PHB numbering when using opal-phbid
powerpc/64: Init jump labels before parse_early_param()
selftests/powerpc: Avoid GCC 12 uninitialised variable warning
powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address
powerpc/xive: Fix refcount leak in xive_get_max_prio
powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader
powerpc/perf: Include caps feature for power10 DD1 version
powerpc: add support for syscall stack randomization
powerpc: Move system_call_exception() to syscall.c
powerpc/powernv: rename remaining rng powernv_ functions to pnv_
powerpc/powernv/kvm: Use darn for H_RANDOM on Power9
powerpc/powernv: Avoid crashing if rng is NULL
selftests/powerpc: Fix matrix multiply assist test
powerpc/signal: Update comment for clarity
powerpc: make facility_unavailable_exception 64s
powerpc/platforms/83xx/suspend: Remove write-only global variable
powerpc/platforms/83xx/suspend: Prevent unloading the driver
powerpc/platforms/83xx/suspend: Reorder to get rid of a forward declaration
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Switch mpc5xxx_get_bus_frequency() to use fwnode in order to help
cleaning up other parts of the kernel from OF specific code.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # for i2c-mpc
Acked-by: Wolfram Sang <wsa@kernel.org> # for the I2C part
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for mscan/mpc5xxx_can
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220507100147.5802-2-andriy.shevchenko@linux.intel.com
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