Commit graph

1058058 commits

Author SHA1 Message Date
Petr Machata
af0a51113c selftests: forwarding: Fix packet matching in mirroring selftests
In commit 6de6e46d27 ("cls_flower: Fix inability to match GRE/IPIP
packets"), cls_flower was fixed to match an outer packet of a tunneled
packet as would be expected, rather than dissecting to the inner packet and
matching on that.

This fix uncovered several issues in packet matching in mirroring
selftests:

- in mirror_gre_bridge_1d_vlan.sh and mirror_gre_vlan_bridge_1q.sh, the
  vlan_ethtype match is copied around as "ip", even as some of the tests
  are running over ip6gretap. This is fixed by using an "ipv6" for
  vlan_ethtype in the ip6gretap tests.

- in mirror_gre_changes.sh, a filter to count GRE packets is set up to
  match TTL of 50. This used to trigger in the offloaded datapath, where
  the envelope TTL was matched, but not in the software datapath, which
  considered TTL of the inner packet. Now that both match consistently, all
  the packets were double-counted. This is fixed by marking the filter as
  skip_hw, leaving only the SW datapath component active.

Fixes: 6de6e46d27 ("cls_flower: Fix inability to match GRE/IPIP packets")
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:38:44 +00:00
Eiichi Tsukata
c7cd82b905 vsock: prevent unnecessary refcnt inc for nonblocking connect
Currently vosck_connect() increments sock refcount for nonblocking
socket each time it's called, which can lead to memory leak if
it's called multiple times because connect timeout function decrements
sock refcount only once.

Fixes it by making vsock_connect() return -EALREADY immediately when
sock state is already SS_CONNECTING.

Fixes: d021c34405 ("VSOCK: Introduce VM Sockets")
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:36:11 +00:00
Marek Behún
bb7bbb6e36 net: marvell: mvpp2: Fix wrong SerDes reconfiguration order
Commit bfe301ebbc ("net: mvpp2: convert to use
mac_prepare()/mac_finish()") introduced a bug wherein it leaves the MAC
RESET register asserted after mac_finish(), due to wrong order of
function calls.

Before it was:
  .mac_config()
    mvpp22_mode_reconfigure()
      assert reset
    mvpp2_xlg_config()
      deassert reset

Now it is:
  .mac_prepare()
  .mac_config()
    mvpp2_xlg_config()
      deassert reset
  .mac_finish()
    mvpp2_xlg_config()
      assert reset

Obviously this is wrong.

This bug is triggered when phylink tries to change the PHY interface
mode from a GMAC mode (sgmii, 1000base-x, 2500base-x) to XLG mode
(10gbase-r, xaui). The XLG mode does not work since reset is left
asserted. Only after
  ifconfig down && ifconfig up
is called will the XLG mode work.

Move the call to mvpp22_mode_reconfigure() to .mac_prepare()
implementation. Since some of the subsequent functions need to know
whether the interface is being changed, we unfortunately also need to
pass around the new interface mode before setting port->phy_interface.

Fixes: bfe301ebbc ("net: mvpp2: convert to use mac_prepare()/mac_finish()")
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:34:02 +00:00
Christophe JAILLET
7a166854b4 net: ethernet: ti: cpsw_ale: Fix access to un-initialized memory
It is spurious to allocate a bitmap without initializing it.
So, better safe than sorry, initialize it to 0 at least to have some known
values.

While at it, switch to the devm_bitmap_ API which is less verbose.

Fixes: 4b41d34367 ("net: ethernet: ti: cpsw: allow untagged traffic on host port")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:33:04 +00:00
David Hildenbrand
61082ad6a6 virtio-mem: support VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE
The initial virtio-mem spec states that while unplugged memory should not
be read, the device still has to allow for reading unplugged memory inside
the usable region. The primary motivation for this default handling was
to simplify bringup of virtio-mem, because there were corner cases where
Linux might have accidentially read unplugged memory inside added Linux
memory blocks.

In the meantime, we:
1. Removed /dev/kmem in commit bbcd53c960 ("drivers/char: remove
   /dev/kmem for good")
2. Disallowed access to virtio-mem device memory via /dev/mem in
   commit 2128f4e21a ("virtio-mem: disallow mapping virtio-mem memory via
   /dev/mem")
3. Sanitized access to virtio-mem device memory via /proc/kcore in
   commit 0daa322b8f ("fs/proc/kcore: don't read offline sections,
   logically offline pages and hwpoisoned pages")
4. Sanitized access to virtio-mem device memory via /proc/vmcore in
   commit ce2814622e ("virtio-mem: kdump mode to sanitize /proc/vmcore
   access")

"Accidential" access to unplugged memory is no longer possible; we can
support the new VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature that will be
required by some hypervisors implementing virtio-mem in the near future.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Marek Kedzierski <mkedzier@redhat.com>
Cc: Hui Zhu <teawater@gmail.com>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2021-11-10 15:32:38 +01:00
Vladimir Oltean
f64ab8e4f3 net: stmmac: allow a tc-taprio base-time of zero
Commit fe28c53ed7 ("net: stmmac: fix taprio configuration when
base_time is in the past") allowed some base time values in the past,
but apparently not all, the base-time value of 0 (Jan 1st 1970) is still
explicitly denied by the driver.

Remove the bogus check.

Fixes: b60189e039 ("net: stmmac: Integrate EST with TAPRIO scheduler API")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:32:15 +00:00
Andrea Righi
e7e4785fa3 selftests: net: test_vxlan_under_vrf: fix HV connectivity test
It looks like test_vxlan_under_vrf.sh is always failing to verify the
connectivity test during the ping between the two simulated VMs.

This is due to the fact that veth-hv in each VM should have a distinct
MAC address.

Fix by setting a unique MAC address on each simulated VM interface.

Without this fix:

 $ sudo ./tools/testing/selftests/net/test_vxlan_under_vrf.sh
 Checking HV connectivity                                           [ OK ]
 Check VM connectivity through VXLAN (underlay in the default VRF)  [FAIL]

With this fix applied:

 $ sudo ./tools/testing/selftests/net/test_vxlan_under_vrf.sh
 Checking HV connectivity                                           [ OK ]
 Check VM connectivity through VXLAN (underlay in the default VRF)  [ OK ]
 Check VM connectivity through VXLAN (underlay in a VRF)            [FAIL]

NOTE: the connectivity test with the underlay VRF is still failing; it
seems that ARP requests are blocked at the simulated hypervisor level,
probably due to some missing ARP forwarding rules. This requires more
investigation (in the meantime we may consider to set that test as
expected failure - XFAIL).

Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:31:02 +00:00
David S. Miller
1413ff132f Merge branch 'hns3-fixes'
Guangbin Huang says:

====================
net: hns3: add some fixes for -net

This series adds some fixes for the HNS3 ethernet driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:20:43 +00:00
Guangbin Huang
688db0c7a4 net: hns3: allow configure ETS bandwidth of all TCs
Currently, driver only allow configuring ETS bandwidth of TCs according
to the max TC number queried from firmware. However, the hardware actually
supports 8 TCs and users may need to configure ETS bandwidth of all TCs,
so remove the restriction.

Fixes: 330baff542 ("net: hns3: add ETS TC weight setting in SSU module")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:20:43 +00:00
Guangbin Huang
91fcc79bff net: hns3: remove check VF uc mac exist when set by PF
If users set unicast mac address for VFs by PF, they need to guarantee all
VFs' address is different. This patch removes the check mac address exist
of VFs, for usrs can refresh mac addresses of all VFs directly without
need to modify the exist mac address to other value firstly.

Fixes: 8e6de441b8 ("net: hns3: add support for configuring VF MAC from the host")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:20:43 +00:00
Guangbin Huang
1122eac194 net: hns3: fix some mac statistics is always 0 in device version V2
When driver queries the register number of mac statistics from firmware,
the old firmware runs in device version V2 only returns number of valid
registers, not include number of three reserved registers among of them.
It cause driver doesn't record the last three data when query mac
statistics.

To fix this problem, driver never query register number in device version
V2 and set it to a fixed value which include three reserved registers.

Fixes: c8af2887c9 ("net: hns3: add support pause/pfc durations for mac statistics")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:20:43 +00:00
Yufeng Mo
e140c7983e net: hns3: fix kernel crash when unload VF while it is being reset
When fully configure VLANs for a VF, then unload the VF while
triggering a reset to PF, will cause a kernel crash because the
irq is already uninit.

[ 293.177579] ------------[ cut here ]------------
[ 293.183502] kernel BUG at drivers/pci/msi.c:352!
[ 293.189547] Internal error: Oops - BUG: 0 [#1] SMP
......
[ 293.390124] Workqueue: hclgevf hclgevf_service_task [hclgevf]
[ 293.402627] pstate: 80c00009 (Nzcv daif +PAN +UAO)
[ 293.414324] pc : free_msi_irqs+0x19c/0x1b8
[ 293.425429] lr : free_msi_irqs+0x18c/0x1b8
[ 293.436545] sp : ffff00002716fbb0
[ 293.446950] x29: ffff00002716fbb0 x28: 0000000000000000
[ 293.459519] x27: 0000000000000000 x26: ffff45b91ea16b00
[ 293.472183] x25: 0000000000000000 x24: ffffa587b08f4700
[ 293.484717] x23: ffffc591ac30e000 x22: ffffa587b08f8428
[ 293.497190] x21: ffffc591ac30e300 x20: 0000000000000000
[ 293.509594] x19: ffffa58a062a8300 x18: 0000000000000000
[ 293.521949] x17: 0000000000000000 x16: ffff45b91dcc3f48
[ 293.534013] x15: 0000000000000000 x14: 0000000000000000
[ 293.545883] x13: 0000000000000040 x12: 0000000000000228
[ 293.557508] x11: 0000000000000020 x10: 0000000000000040
[ 293.568889] x9 : ffff45b91ea1e190 x8 : ffffc591802d0000
[ 293.580123] x7 : ffffc591802d0148 x6 : 0000000000000120
[ 293.591190] x5 : ffffc591802d0000 x4 : 0000000000000000
[ 293.602015] x3 : 0000000000000000 x2 : 0000000000000000
[ 293.612624] x1 : 00000000000004a4 x0 : ffffa58a1e0c6b80
[ 293.623028] Call trace:
[ 293.630340] free_msi_irqs+0x19c/0x1b8
[ 293.638849] pci_disable_msix+0x118/0x140
[ 293.647452] pci_free_irq_vectors+0x20/0x38
[ 293.656081] hclgevf_uninit_msi+0x44/0x58 [hclgevf]
[ 293.665309] hclgevf_reset_rebuild+0x1ac/0x2e0 [hclgevf]
[ 293.674866] hclgevf_reset+0x358/0x400 [hclgevf]
[ 293.683545] hclgevf_reset_service_task+0xd0/0x1b0 [hclgevf]
[ 293.693325] hclgevf_service_task+0x4c/0x2e8 [hclgevf]
[ 293.702307] process_one_work+0x1b0/0x448
[ 293.710034] worker_thread+0x54/0x468
[ 293.717331] kthread+0x134/0x138
[ 293.724114] ret_from_fork+0x10/0x18
[ 293.731324] Code: f940b000 b4ffff00 a903e7b8 f90017b6 (d4210000)

This patch fixes the problem by waiting for the VF reset done
while unloading the VF.

Fixes: e2cb1dec97 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:20:43 +00:00
Yufeng Mo
3b6db4a049 net: hns3: sync rx ring head in echo common pull
When the driver processes rx packets, the head pointer is updated only
after the number of received packets reaches 16. However, hardware
relies on the head pointer to calculate the number of FBDs. As a result,
the hardware calculates the FBD incorrectly. Therefore, the driver
proactively updates the head pointer in each common poll to ensure that
the number of FBDs calculated by the hardware is correct.

Fixes: 68752b24f5 ("net: hns3: schedule the polling again when allocation fails")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:20:43 +00:00
Jie Wang
0b653a81a2 net: hns3: fix pfc packet number incorrect after querying pfc parameters
Currently, driver will send command to firmware to query pfc packet number
when user uses dcb tool to get pfc parameters. However, the periodic
service task will also periodically query and record MAC statistics,
including pfc packet number.

As the hardware registers of statistics is cleared after reading, it will
cause pfc packet number of MAC statistics are not correct after using dcb
tool to get pfc parameters.

To fix this problem, when user uses dcb tool to get pfc parameters, driver
updates MAC statistics firstly and then get pfc packet number from MAC
statistics.

Fixes: 64fd2300fc ("net: hns3: add support for querying pfc puase packets statistic")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:20:43 +00:00
Jie Wang
beb27ca451 net: hns3: fix ROCE base interrupt vector initialization bug
Currently, NIC init ROCE interrupt vector with MSIX interrupt. But ROCE use
pci_irq_vector() to get interrupt vector, which adds the relative interrupt
vector again and gets wrong interrupt vector.

So fixes it by assign relative interrupt vector to ROCE instead of MSIX
interrupt vector and delete the unused struct member base_msi_vector
declaration of hclgevf_dev.

Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:20:43 +00:00
Guangbin Huang
3b4c6566c1 net: hns3: fix failed to add reuse multicast mac addr to hardware when mc mac table is full
Currently, when driver is failed to add a new multicast mac address to
hardware due to the multicast mac table is full, it will directly return.
In this case, if the multicast mac list has some reuse addresses after the
new address, those reuse addresses will never be added to hardware.

To fix this problem, if function hclge_add_mc_addr_common() returns
-ENOSPC, hclge_sync_vport_mac_list() should judge whether continue or
stop to add next address.

As function hclge_sync_vport_mac_list() needs parameter mac_type to know
whether is uc or mc, refine this function to add parameter mac_type and
remove parameter sync. So does function hclge_unsync_vport_mac_list().

Fixes: ee4bcd3b7a ("net: hns3: refactor the MAC address configure")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10 14:20:43 +00:00
Rafael J. Wysocki
61988e0a62 Merge branch 'thermal-int340x'
Merge int340x thermal driver fix for 5.16-rc1.

* thermal-int340x:
  thermal/drivers/int340x: processor_thermal: Suppot 64 bit RFIM responses
2021-11-10 14:08:48 +01:00
Rafael J. Wysocki
dcc0b6f2e6 Merge branches 'pm-opp' and 'pm-cpufreq'
Merge operating performance points (OPP) framework updates for and
intel_pstate driver fixes for 5.16-rc1.

* pm-opp:
  dt-bindings: opp: Allow multi-worded OPP entry name
  opp: Fix return in _opp_add_static_v2()
  PM / devfreq: tegra30: Check whether clk_round_rate() returns zero rate
  PM / devfreq: tegra30: Use resource-managed helpers
  PM / devfreq: Add devm_devfreq_add_governor()
  opp: Add more resource-managed variants of dev_pm_opp_of_add_table()
  opp: Change type of dev_pm_opp_attach_genpd(names) argument
  opp: Fix required-opps phandle array count check

* pm-cpufreq:
  cpufreq: intel_pstate: Clear HWP Status during HWP Interrupt enable
  cpufreq: intel_pstate: Fix unchecked MSR 0x773 access
  cpufreq: intel_pstate: Clear HWP desired on suspend/shutdown and offline
2021-11-10 14:06:51 +01:00
Rafael J. Wysocki
314c6e2b45 Merge branches 'acpica', 'acpi-ec', 'acpi-pmic' and 'acpi-video'
Merge assorted fixes and cleanups and one new backlight quirk list
item for 5.16-rc1.

* acpica:
  ACPI: Drop ACPI_USE_BUILTIN_STDARG ifdef from acgcc.h

* acpi-ec:
  ACPI: EC: Remove initialization of static variables to false
  ACPI: EC: Use ec_no_wakeup on HP ZHAN 66 Pro

* acpi-pmic:
  ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses

* acpi-video:
  ACPI: video: use platform backlight driver on Xiaomi Mi Pad 2
  ACPI: video: Drop dmi_system_id.ident settings from video_detect_dmi_table[]
2021-11-10 14:03:14 +01:00
Rafael J. Wysocki
2c49dabad8 Merge branch 'acpi-dsc'
Merge new ACPI device configuration object _DSC support for 5.16-rc1.

* acpi-dsc:
  Documentation: ACPI: Fix non-D0 probe _DSC object example
  at24: Support probing while in non-zero ACPI D state
  media: i2c: imx319: Support device probe in non-zero ACPI D state
  ACPI: Add a convenience function to tell a device is in D0 state
  Documentation: ACPI: Document _DSC object usage for enum power state
  i2c: Allow an ACPI driver to manage the device's power state during probe
  ACPI: scan: Obtain device's desired enumeration power state
2021-11-10 14:01:09 +01:00
Sakari Ailus
dff5acfd87 Documentation: ACPI: Fix non-D0 probe _DSC object example
The original patch adding the example used _DSC Name when Method was
intended. Fix this.

Also replace spaces used for indentation with tabs in the example.

Fixes: ed66f12ba4 ("Documentation: ACPI: Document _DSC object usage for enum power state")
Reported-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-11-10 13:59:12 +01:00
Johan Hovold
744d0090a5 Input: iforce - fix control-message timeout
USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 4873586278 ("Input: iforce - use DMA-safe buffer when getting IDs from USB")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org      # 5.3
Link: https://lore.kernel.org/r/20211025115501.5190-1-johan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-11-09 23:12:17 -08:00
Alistair Francis
91e2e76695 Input: wacom_i2c - use macros for the bit masks
To make the code easier to read use macros for the bit masks.

Signed-off-by: Alistair Francis <alistair@alistair23.me>
Link: https://lore.kernel.org/r/20211009113707.17568-2-alistair@alistair23.me
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-11-09 22:52:07 -08:00
Takashi Iwai
4ddac46031 ALSA: memalloc: Remove a stale comment
The comment about the reused vmalloc helpers is no longer valid after
the recent change for the noncontig allocator.  Drop the stale
comment.

Fixes: ad4f93ca41 ("ALSA: memalloc: Use proper SG helpers for noncontig allocations")
Link: https://lore.kernel.org/r/20211110063100.21359-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-11-10 07:35:23 +01:00
Marek Vasut
27931d38ce Input: ili210x - reduce sample period to 15ms
Modern devices may redraw display at 60 Hz, make sure we have one input
sample per one frame. Reduce sample period to 15ms, so we would get up
to 66.6 samples per second, although realistically with all the jitter
and extra scheduling wiggle room, we would end up just above 60 samples
per second. This should be a good compromise between sampling too often
and sampling too seldom.

Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20211108114145.84118-1-marex@denx.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-11-09 22:23:02 -08:00
Marek Vasut
8639e042ad Input: ili210x - improve polled sample spacing
Currently the ili210x driver implements a threaded interrupt handler which
starts upon edge on the interrupt line, and then polls the touch controller
for samples. Every time a sample is obtained from the controller, the thread
function checks whether further polling is required, and if so, waits fixed
amount of time before polling for next sample.

The delay between consecutive samples can thus vary greatly, because the
I2C transfer required to retrieve the sample from the controller takes
different amount of time on different platforms. Furthermore, different
models of the touch controllers supported by this driver require different
delays during retrieval of samples too.

Instead of waiting fixed amount of time before polling for next sample,
determine how much time passed since the beginning of sampling cycle and
then wait only the remaining amount of time within the sampling cycle.
This makes the driver deliver samples with equal spacing between them.

Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20211108005216.480525-1-marex@denx.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-11-09 22:23:00 -08:00
Marek Vasut
de88910839 Input: ili210x - special case ili251x sample read out
The ili251x touch controller needs 5ms delay between sending I2C device
address and register address, and, writing or reading register data.

According to downstream ili251x example code, this 5ms delay is not
required when reading touch samples out of the controller. Implement
such a special case.

Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20211108005259.480545-1-marex@denx.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-11-09 22:22:59 -08:00
Phoenix Huang
be896bd3b7 Input: elantench - fix misreporting trackpoint coordinates
Some firmwares occasionally report bogus data from trackpoint, with X or Y
displacement being too large (outside of [-127, 127] range). Let's drop such
packets so that we do not generate jumps.

Signed-off-by: Phoenix Huang <phoenix@emc.com.tw>
Tested-by: Yufei Du <yufeidu@cs.unc.edu>
Link: https://lore.kernel.org/r/20210729010940.5752-1-phoenix@emc.com.tw
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-11-09 22:22:43 -08:00
Paulo Alcantara
4ac0536f88 cifs: set a minimum of 120s for next dns resolution
With commit 506c1da44f ("cifs: use the expiry output of dns_query to
schedule next resolution") and after triggering the first reconnect,
the next async dns resolution of tcp server's hostname would be
scheduled based on dns_resolver's key expiry default, which happens to
default to 5s on most systems that use key.dns_resolver for upcall.

As per key.dns_resolver.conf(5):

       default_ttl=<number>
              The  number  of  seconds  to  set  as the expiration on a cached
              record.  This will be overridden if the program manages  to  re-
              trieve  TTL  information along with the addresses (if, for exam-
              ple, it accesses the DNS directly).  The default is  5  seconds.
              The value must be in the range 1 to INT_MAX.

Make the next async dns resolution no shorter than 120s as we do not
want to be upcalling too often.

Cc: stable@vger.kernel.org
Fixes: 506c1da44f ("cifs: use the expiry output of dns_query to schedule next resolution")
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-11-09 23:03:08 -06:00
Paulo Alcantara
bbcce36804 cifs: split out dfs code from cifs_reconnect()
Make two separate functions that handle dfs and non-dfs reconnect
logics since cifs_reconnect() became way too complex to handle both.
While at it, add some documentation.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-11-09 23:01:55 -06:00
Colin Ian King
8f1bc38bbb net: mana: Fix spelling mistake "calledd" -> "called"
There is a spelling mistake in a dev_info message. Fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Link: https://lore.kernel.org/r/20211108201817.43121-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-09 19:16:55 -08:00
Eric Dumazet
6dc25401cb net/sched: sch_taprio: fix undefined behavior in ktime_mono_to_any
1) if q->tk_offset == TK_OFFS_MAX, then get_tcp_tstamp() calls
   ktime_mono_to_any() with out-of-bound value.

2) if q->tk_offset is changed in taprio_parse_clockid(),
   taprio_get_time() might also call ktime_mono_to_any()
   with out-of-bound value as sysbot found:

UBSAN: array-index-out-of-bounds in kernel/time/timekeeping.c:908:27
index 3 is out of range for type 'ktime_t *[3]'
CPU: 1 PID: 25668 Comm: kworker/u4:0 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 ubsan_epilogue+0xb/0x5a lib/ubsan.c:151
 __ubsan_handle_out_of_bounds.cold+0x62/0x6c lib/ubsan.c:291
 ktime_mono_to_any+0x1d4/0x1e0 kernel/time/timekeeping.c:908
 get_tcp_tstamp net/sched/sch_taprio.c:322 [inline]
 get_packet_txtime net/sched/sch_taprio.c:353 [inline]
 taprio_enqueue_one+0x5b0/0x1460 net/sched/sch_taprio.c:420
 taprio_enqueue+0x3b1/0x730 net/sched/sch_taprio.c:485
 dev_qdisc_enqueue+0x40/0x300 net/core/dev.c:3785
 __dev_xmit_skb net/core/dev.c:3869 [inline]
 __dev_queue_xmit+0x1f6e/0x3630 net/core/dev.c:4194
 batadv_send_skb_packet+0x4a9/0x5f0 net/batman-adv/send.c:108
 batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:393 [inline]
 batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:421 [inline]
 batadv_iv_send_outstanding_bat_ogm_packet+0x6d7/0x8e0 net/batman-adv/bat_iv_ogm.c:1701
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Fixes: 7ede7b0348 ("taprio: make clock reference conversions easier")
Fixes: 5400206610 ("taprio: Adjust timestamps for TCP packets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Vedang Patel <vedang.patel@intel.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reviewed-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Link: https://lore.kernel.org/r/20211108180815.1822479-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-09 19:16:23 -08:00
Taehee Yoo
43aa493799 amt: use cancel_delayed_work() instead of flush_delayed_work() in amt_fini()
When the amt module is being removed, it calls flush_delayed_work() to exit
source_gc_wq. But it wouldn't be exited properly because the
amt_source_gc_work(), which is the callback function of source_gc_wq
internally calls mod_delayed_work() again.
So, amt_source_gc_work() would be called after the amt module is removed.
Therefore kernel panic would occur.
In order to avoid it, cancel_delayed_work() should be used instead of
flush_delayed_work().

Test commands:
   modprobe amt
   modprobe -rv amt

Splat looks like:
 BUG: unable to handle page fault for address: fffffbfff80f50db
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 1237ee067 P4D 1237ee067 PUD 1237b2067 PMD 100c11067 PTE 0
 Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN PTI
 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.15.0+ #27
 5a0ebebc29fe5c40c68bea90197606c3a832b09f
 RIP: 0010:run_timer_softirq+0x221/0xfc0
 Code: 00 00 4c 89 e1 4c 8b 30 48 c1 e9 03 80 3c 29 00 0f 85 ed 0b 00 00
 4d 89 34 24 4d 85 f6 74 19 49 8d 7e 08 48 89 f9 48 c1 e9 03 <80> 3c 29 00
 0f 85 fa 0b 00 00 4d 89 66 08 83 04 24 01 49 89 d4 48
 RSP: 0018:ffff888119009e50 EFLAGS: 00010806
 RAX: ffff8881191f8a80 RBX: 00000000007ffe2a RCX: 1ffffffff80f50db
 RDX: ffff888119009ed0 RSI: 0000000000000008 RDI: ffffffffc07a86d8
 RBP: dffffc0000000000 R08: ffff8881191f8280 R09: ffffed102323f061
 R10: ffff8881191f8307 R11: ffffed102323f060 R12: ffff888119009ec8
 R13: 00000000000000c0 R14: ffffffffc07a86d0 R15: ffff8881191f82e8
 FS:  0000000000000000(0000) GS:ffff888119000000(0000)
 knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: fffffbfff80f50db CR3: 00000001062dc002 CR4: 00000000003706e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <IRQ>
  ? add_timer+0x650/0x650
  ? kvm_clock_read+0x14/0x30
  ? ktime_get+0xb9/0x180
  ? rcu_read_lock_held_common+0xe/0xa0
  ? rcu_read_lock_sched_held+0x56/0xc0
  ? rcu_read_lock_bh_held+0xa0/0xa0
  ? hrtimer_interrupt+0x271/0x790
  __do_softirq+0x1d0/0x88f
  irq_exit_rcu+0xe7/0x120
  sysvec_apic_timer_interrupt+0x8a/0xb0
  </IRQ>
  <TASK>
[ ... ]

Fixes: bc54e49c14 ("amt: add multicast(IGMP) report message handler")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Link: https://lore.kernel.org/r/20211108145340.17208-1-ap420073@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-09 19:12:56 -08:00
Dave Airlie
917a6f0bdb Couple Reverts, build fix, couple virtualization fixes,
blank screen and other display rates fixes, and more.
 
 Four patches targeting stable in here.
 
 Display Fixes:
 - DP rates related fixes (Imre, Jani)
 - A Revert on disaling dual eDP that was causing state readout problems (Jani)
 - put the cdclk vtables in const data (Jani)
 - Fix DVO port type for moder platforms (Ville)
 - Fix blankscreen by turning DP++ TMDS output buffers on encoder->shutdown (Ville)
 - CCS FBs related fixes (Imre)
 
 GT fixes:
 - Fix recursive lock in GuC submission (Matt Brost)
 - Revert guc_id from i915_request tracepoint (Joonas)
 - Build fix around dmabuf (Matt Auld)
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Merge tag 'drm-intel-next-fixes-2021-11-09' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

Couple Reverts, build fix, couple virtualization fixes,
blank screen and other display rates fixes, and more.

Four patches targeting stable in here.

Display Fixes:
- DP rates related fixes (Imre, Jani)
- A Revert on disaling dual eDP that was causing state readout problems (Jani)
- put the cdclk vtables in const data (Jani)
- Fix DVO port type for moder platforms (Ville)
- Fix blankscreen by turning DP++ TMDS output buffers on encoder->shutdown (Ville)
- CCS FBs related fixes (Imre)

GT fixes:
- Fix recursive lock in GuC submission (Matt Brost)
- Revert guc_id from i915_request tracepoint (Joonas)
- Build fix around dmabuf (Matt Auld)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YYsBif3HMi8GjLoU@intel.com
2021-11-10 13:09:45 +10:00
Dave Airlie
4a390c2ee7 A refcounting fix for outstanding fence callbacks.
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Merge tag 'drm-misc-next-fixes-2021-11-05' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

A refcounting fix for outstanding fence callbacks.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20211105074318.oy6rwjr5wcw6qpjj@gilmour
2021-11-10 13:09:22 +10:00
Marek Behún
dc2fc9f03c net: dsa: mv88e6xxx: Don't support >1G speeds on 6191X on ports other than 10
Model 88E6191X only supports >1G speeds on port 10. Port 0 and 9 are
only 1G.

Fixes: de776d0d31 ("net: dsa: mv88e6xxx: add support for mv88e6393x family")
Signed-off-by: Marek Behún <kabel@kernel.org>
Cc: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20211104171747.10509-1-kabel@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-09 19:09:12 -08:00
Paulo Alcantara
ae0abb4dac cifs: convert list_for_each to entry variant
Convert list_for_each{,_safe} to list_for_each_entry{,_safe} in
cifs_mark_tcp_ses_conns_for_reconnect() function.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-11-09 20:46:36 -06:00
Paulo Alcantara
43b459aa5e cifs: introduce new helper for cifs_reconnect()
Create cifs_mark_tcp_ses_conns_for_reconnect() helper to mark all
sessions and tcons for reconnect when reconnecting tcp server.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-11-09 20:46:08 -06:00
Paulo Alcantara
efb21d7b0f cifs: fix print of hdr_flags in dfscache_proc_show()
Reorder the parameters in seq_printf() to correctly print header
flags.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-11-09 20:44:07 -06:00
Luis Chamberlain
278167fd2f block: add __must_check for *add_disk*() callers
Now that we have done a spring cleaning on all drivers and added
error checking / handling, let's keep it that way and ensure
no new drivers fail to stick with it.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20211110002949.999380-1-mcgrof@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-09 19:19:34 -07:00
Jens Axboe
ecaf97f474 block: use enum type for blk_mq_alloc_data->rq_flags
kernel test robot reports that we now trigger some sparse warnings:

block/blk-mq.h:169:32: sparse: sparse: restricted req_flags_t degrades to integer
block/blk-mq.h:169:32: sparse: sparse: restricted req_flags_t degrades to integer
block/blk-mq.h:169:32: sparse: sparse: restricted req_flags_t degrades to integer

which is due to ->rq_flags being an unsigned int, rather than the
stronger type req_flags_t enum.

Change the type to req_flags_t to silence this warning.

Fixes: 56f8da642b ("block: add rq_flags to struct blk_mq_alloc_data")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-09 19:19:15 -07:00
Alexandre Belloni
b476266f06 rtc: rx8025: use .set_offset/.read_offset
The driver has its own sysfs file to adjust the clock. Fortunately, it is
already in pbb, however, the sign it expects is the opposite of what the
RTC core does (which actually aligns with the RTC).

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211107225458.111068-12-alexandre.belloni@bootlin.com
2021-11-10 00:45:57 +01:00
Alexandre Belloni
3d35840dfb rtc: rx8025: use rtc_add_group
Remove open coded sysfs registration by using rtc_add_group.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211107225458.111068-11-alexandre.belloni@bootlin.com
2021-11-10 00:45:57 +01:00
Alexandre Belloni
5be3933fea rtc: rx8025: clear RTC_FEATURE_ALARM when alarm are not supported
Clear RTC_FEATURE_ALARM to signal alarms are not supported to the core
instead of checking client->irq.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211107225458.111068-10-alexandre.belloni@bootlin.com
2021-11-10 00:45:57 +01:00
Alexandre Belloni
1709d7eea1 rtc: rx8025: set range
Set the RTC range, it is a classic BCD RTC, with 00 being a leap
year. Let the core handle range checking.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211107225458.111068-9-alexandre.belloni@bootlin.com
2021-11-10 00:45:57 +01:00
Alexandre Belloni
8670558f9e rtc: rx8025: let the core handle the alarm resolution
Tell the RTC core UIE are not supported because the resolution of the alarm
is a minute.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211107225458.111068-8-alexandre.belloni@bootlin.com
2021-11-10 00:45:57 +01:00
Alexandre Belloni
5e7f635aa6 rtc: rx8025: switch to devm_rtc_allocate_device
Switch to devm_rtc_allocate_device/devm_rtc_register_device, this allows
for further improvement of the driver.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211107225458.111068-7-alexandre.belloni@bootlin.com
2021-11-10 00:45:57 +01:00
Alexandre Belloni
a5f828036c rtc: ab8500: let the core handle the alarm resolution
Tell the RTC core UIE are not supported because the resolution of the alarm
is a minute.

Note that this is in fact also fixing how the resolution is reported as the
previous test was simply ensuring the alarm was more than a minute in the
future while the register has a minute resolution.
This would be ok if the alarm was a countdown but ab8500_rtc_read_alarm
suggests otherwise and the AB8500 datasheet states that the RTC
documentation is not public.

Finally, the comment is wrong and what makes the UIE emulation work is
uie_unsupported being set.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20211107225458.111068-6-alexandre.belloni@bootlin.com
2021-11-10 00:45:57 +01:00
Alexandre Belloni
27f06af753 rtc: ab-eoz9: support UIE when available
The RTC actually supports UIE when an interrupt is available.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211107225458.111068-5-alexandre.belloni@bootlin.com
2021-11-10 00:45:57 +01:00
Alexandre Belloni
2437001401 rtc: ab-eoz9: use RTC_FEATURE_UPDATE_INTERRUPT
Switch from uie_unsupported to RTC_FEATURE_UPDATE_INTERRUPT

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211107225458.111068-4-alexandre.belloni@bootlin.com
2021-11-10 00:45:57 +01:00