platform/kernel/linux-rpi.git
4 years agoUSB: idmouse: drop redundant open-count check from release
Johan Hovold [Tue, 5 Nov 2019 10:36:37 +0000 (11:36 +0100)]
USB: idmouse: drop redundant open-count check from release

The open count will always be exactly one when release is called, so
drop the redundant sanity check.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191105103638.4929-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoUSB: idmouse: simplify disconnect handling
Johan Hovold [Tue, 5 Nov 2019 10:36:36 +0000 (11:36 +0100)]
USB: idmouse: simplify disconnect handling

Since commit d4ead16f50f9 ("USB: prevent char device open/deregister
race") core prevents further calls to open() after usb_deregister_dev()
returns so there's no need to use the interface data for
synchronisation.

This effectively reverts commit 54d2bc068fd2 ("USB: fix locking in
idmouse") with respect to the open-disconnect race.

Note that the driver already uses a present flag to suppress I/O post
disconnect (even if all USB I/O take place at open).

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191105103638.4929-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: Allow USB device to be warm reset in suspended state
Kai-Heng Feng [Wed, 6 Nov 2019 06:27:10 +0000 (14:27 +0800)]
usb: Allow USB device to be warm reset in suspended state

On Dell WD15 dock, sometimes USB ethernet cannot be detected after plugging
cable to the ethernet port, the hub and roothub get runtime resumed and
runtime suspended immediately:
...
[  433.315169] xhci_hcd 0000:3a:00.0: hcd_pci_runtime_resume: 0
[  433.315204] usb usb4: usb auto-resume
[  433.315226] hub 4-0:1.0: hub_resume
[  433.315239] xhci_hcd 0000:3a:00.0: Get port status 4-1 read: 0x10202e2, return 0x10343
[  433.315264] usb usb4-port1: status 0343 change 0001
[  433.315279] xhci_hcd 0000:3a:00.0: clear port1 connect change, portsc: 0x10002e2
[  433.315293] xhci_hcd 0000:3a:00.0: Get port status 4-2 read: 0x2a0, return 0x2a0
[  433.317012] xhci_hcd 0000:3a:00.0: xhci_hub_status_data: stopping port polling.
[  433.422282] xhci_hcd 0000:3a:00.0: Get port status 4-1 read: 0x10002e2, return 0x343
[  433.422307] usb usb4-port1: do warm reset
[  433.422311] usb 4-1: device reset not allowed in state 8
[  433.422339] hub 4-0:1.0: state 7 ports 2 chg 0002 evt 0000
[  433.422346] xhci_hcd 0000:3a:00.0: Get port status 4-1 read: 0x10002e2, return 0x343
[  433.422356] usb usb4-port1: do warm reset
[  433.422358] usb 4-1: device reset not allowed in state 8
[  433.422428] xhci_hcd 0000:3a:00.0: set port remote wake mask, actual port 0 status  = 0xf0002e2
[  433.422455] xhci_hcd 0000:3a:00.0: set port remote wake mask, actual port 1 status  = 0xe0002a0
[  433.422465] hub 4-0:1.0: hub_suspend
[  433.422475] usb usb4: bus auto-suspend, wakeup 1
[  433.426161] xhci_hcd 0000:3a:00.0: xhci_hub_status_data: stopping port polling.
[  433.466209] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting
[  433.510204] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting
[  433.554051] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting
[  433.598235] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting
[  433.642154] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting
[  433.686204] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting
[  433.730205] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting
[  433.774203] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting
[  433.818207] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting
[  433.862040] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting
[  433.862053] xhci_hcd 0000:3a:00.0: xhci_hub_status_data: stopping port polling.
[  433.862077] xhci_hcd 0000:3a:00.0: xhci_suspend: stopping port polling.
[  433.862096] xhci_hcd 0000:3a:00.0: // Setting command ring address to 0x8578fc001
[  433.862312] xhci_hcd 0000:3a:00.0: hcd_pci_runtime_suspend: 0
[  433.862445] xhci_hcd 0000:3a:00.0: PME# enabled
[  433.902376] xhci_hcd 0000:3a:00.0: restoring config space at offset 0xc (was 0x0, writing 0x20)
[  433.902395] xhci_hcd 0000:3a:00.0: restoring config space at offset 0x4 (was 0x100000, writing 0x100403)
[  433.902490] xhci_hcd 0000:3a:00.0: PME# disabled
[  433.902504] xhci_hcd 0000:3a:00.0: enabling bus mastering
[  433.902547] xhci_hcd 0000:3a:00.0: // Setting command ring address to 0x8578fc001
[  433.902649] pcieport 0000:00:1b.0: PME: Spurious native interrupt!
[  433.902839] xhci_hcd 0000:3a:00.0: Port change event, 4-1, id 3, portsc: 0xb0202e2
[  433.902842] xhci_hcd 0000:3a:00.0: resume root hub
[  433.902845] xhci_hcd 0000:3a:00.0: handle_port_status: starting port polling.
[  433.902877] xhci_hcd 0000:3a:00.0: xhci_resume: starting port polling.
[  433.902889] xhci_hcd 0000:3a:00.0: xhci_hub_status_data: stopping port polling.
[  433.902891] xhci_hcd 0000:3a:00.0: hcd_pci_runtime_resume: 0
[  433.902919] usb usb4: usb wakeup-resume
[  433.902942] usb usb4: usb auto-resume
[  433.902966] hub 4-0:1.0: hub_resume
...

As Mathias pointed out, the hub enters Cold Attach Status state and
requires a warm reset. However usb_reset_device() bails out early when
the device is in suspended state, as its callers port_event() and
hub_event() don't always resume the device.

Since there's nothing wrong to reset a suspended device, allow
usb_reset_device() to do so to solve the issue.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191106062710.29880-1-kai.heng.feng@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: gadget: pch_udc: fix use after free
Gustavo A. R. Silva [Wed, 6 Nov 2019 20:28:21 +0000 (14:28 -0600)]
usb: gadget: pch_udc: fix use after free

Remove pointer dereference after free.

pci_pool_free doesn't care about contents of td.
It's just a void* for it

Addresses-Coverity-ID: 1091173 ("Use after free")
Cc: stable@vger.kernel.org
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20191106202821.GA20347@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agodt-bindings: usb: renesas: usb3-peri: convert bindings to json-schema
Yoshihiro Shimoda [Wed, 6 Nov 2019 10:34:53 +0000 (19:34 +0900)]
dt-bindings: usb: renesas: usb3-peri: convert bindings to json-schema

Convert Renesas USB 3.0 Peripheral controller bindings documentation
to json-schema.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1573036493-16525-1-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: ucsi: Optimise ucsi_unregister()
Heikki Krogerus [Mon, 4 Nov 2019 14:24:35 +0000 (17:24 +0300)]
usb: typec: ucsi: Optimise ucsi_unregister()

There is no need to reset the PPM when the interface is
unregistered. Quietly silencing the notifications and then
unregistering everything is enough. This speeds up
ucsi_unregister() a lot.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ajay Gupta <ajayg@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-19-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: ucsi: New error codes
Heikki Krogerus [Mon, 4 Nov 2019 14:24:34 +0000 (17:24 +0300)]
usb: typec: ucsi: New error codes

Adding new error codes to the driver that were introduced in
UCSI specification v1.1.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ajay Gupta <ajayg@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-18-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: ucsi: Remove all bit-fields
Heikki Krogerus [Mon, 4 Nov 2019 14:24:33 +0000 (17:24 +0300)]
usb: typec: ucsi: Remove all bit-fields

We can't use bit fields with data that is received or send
to/from the device.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ajay Gupta <ajayg@nvidia.com>
Link: https://lore.kernel.org/r/20191104142435.29960-17-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: ucsi: Remove struct ucsi_control
Heikki Krogerus [Mon, 4 Nov 2019 14:24:32 +0000 (17:24 +0300)]
usb: typec: ucsi: Remove struct ucsi_control

That data structure was used for constructing the commands
before executing them, but it was never really useful. Using
the structure just complicated the driver. The commands are
64-bit wide, so it is enough to simply fill a u64 variable.
No data structures needed.

This simplifies the driver considerable and makes it much
easier to for example add support for big endian systems
later on.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ajay Gupta <ajayg@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-16-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: ucsi: Remove the old API
Heikki Krogerus [Mon, 4 Nov 2019 14:24:31 +0000 (17:24 +0300)]
usb: typec: ucsi: Remove the old API

The drivers now only use the new API, so removing the old one.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ajay Gupta <ajayg@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-15-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: ucsi: ccg: Move to the new API
Heikki Krogerus [Mon, 4 Nov 2019 14:24:30 +0000 (17:24 +0300)]
usb: typec: ucsi: ccg: Move to the new API

Replacing the old "cmd" and "sync" callbacks with an
implementation of struct ucsi_operations. The interrupt
handler will from now on read the CCI (Command Status and
Connector Change Indication) register, and call
ucsi_connector_change() function and/or complete pending
command completions based on it.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ajay Gupta <ajayg@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-14-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: ucsi: acpi: Move to the new API
Heikki Krogerus [Mon, 4 Nov 2019 14:24:29 +0000 (17:24 +0300)]
usb: typec: ucsi: acpi: Move to the new API

Replacing the old "cmd" and "sync" callbacks with an
implementation of struct ucsi_operations. The ACPI
notification (interrupt) handler will from now on read the
CCI (Command Status and Connector Change Indication)
register, and call ucsi_connector_change() function and/or
complete pending command completions based on it.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-13-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: ucsi: Simplified registration and I/O API
Heikki Krogerus [Mon, 4 Nov 2019 14:24:28 +0000 (17:24 +0300)]
usb: typec: ucsi: Simplified registration and I/O API

Adding more simplified API for interface registration and
read and write operations.

The registration is split into separate creation and
registration phases. That allows the drivers to properly
initialize the interface before registering it if necessary.

The read and write operations are supplied in a completely
separate struct ucsi_operations that is passed to the
ucsi_register() function during registration. The new read
and write operations will work more traditionally so that
the read callback function reads a requested amount of data
from an offset, and the write callback functions write the
given data to the offset. The drivers will have to support
both non-blocking writing and blocking writing. In blocking
writing the driver itself is responsible of waiting for the
completion event.

The new API makes it possible for the drivers to perform
tasks also independently of the core ucsi.c, and that should
allow for example quirks to be handled completely in the
drivers without the need to touch ucsi.c.

The old API is kept until all drivers have been converted to
the new API.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ajay Gupta <ajayg@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-12-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: hd3ss3220: Give the connector fwnode to the port device
Heikki Krogerus [Mon, 4 Nov 2019 14:24:27 +0000 (17:24 +0300)]
usb: typec: hd3ss3220: Give the connector fwnode to the port device

The driver already finds the node in order to get reference
to the USB role switch.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-11-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: Remove unused members from struct typec_capability
Heikki Krogerus [Mon, 4 Nov 2019 14:24:26 +0000 (17:24 +0300)]
usb: typec: Remove unused members from struct typec_capability

The members for the muxes are not used, so dropping them.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-10-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: Remove the callback members from struct typec_capability
Heikki Krogerus [Mon, 4 Nov 2019 14:24:25 +0000 (17:24 +0300)]
usb: typec: Remove the callback members from struct typec_capability

There are no more users for them.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-9-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: hd3ss3220: Start using struct typec_operations
Heikki Krogerus [Mon, 4 Nov 2019 14:24:24 +0000 (17:24 +0300)]
usb: typec: hd3ss3220: Start using struct typec_operations

Supplying the operation callbacks as part of a struct
typec_operations instead of as part of struct
typec_capability during port registration. After this there
is not need to keep the capabilities stored anywhere in the
driver.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-8-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: ucsi: Start using struct typec_operations
Heikki Krogerus [Mon, 4 Nov 2019 14:24:23 +0000 (17:24 +0300)]
usb: typec: ucsi: Start using struct typec_operations

Supplying the operation callbacks as part of a struct
typec_operations instead of as part of struct
typec_capability during port registration.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-7-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: tps6598x: Start using struct typec_operations
Heikki Krogerus [Mon, 4 Nov 2019 14:24:22 +0000 (17:24 +0300)]
usb: typec: tps6598x: Start using struct typec_operations

Supplying the operation callbacks as part of a struct
typec_operations instead of as part of struct
typec_capability during port registration. After this there
is not need to keep the capabilities stored anywhere in the
driver.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-6-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: tcpm: Start using struct typec_operations
Heikki Krogerus [Mon, 4 Nov 2019 14:24:21 +0000 (17:24 +0300)]
usb: typec: tcpm: Start using struct typec_operations

Supplying the operation callbacks as part of a struct
typec_operations instead of as part of struct
typec_capability during port registration.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-5-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: Separate the operations vector
Heikki Krogerus [Mon, 4 Nov 2019 14:24:20 +0000 (17:24 +0300)]
usb: typec: Separate the operations vector

Introducing struct typec_operations which has the same
callbacks as struct typec_capability. The old callbacks are
kept for now, but after all users have been converted, they
will be removed.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-4-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: Introduce typec_get_drvdata()
Heikki Krogerus [Mon, 4 Nov 2019 14:24:19 +0000 (17:24 +0300)]
usb: typec: Introduce typec_get_drvdata()

Leaving the private driver_data pointer of the port device
to the port drivers.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: typec: Copy everything from struct typec_capability during registration
Heikki Krogerus [Mon, 4 Nov 2019 14:24:18 +0000 (17:24 +0300)]
usb: typec: Copy everything from struct typec_capability during registration

Copying everything from struct typec_capability to struct
typec_port during port registration. This will make sure
that under no circumstances the driver can change the values
in the struct typec_capability that the port uses.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoUSB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein
Andrey Konovalov [Mon, 21 Oct 2019 14:20:59 +0000 (16:20 +0200)]
USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein

Commit fea3409112a9 ("USB: add direction bit to urb->transfer_flags") has
added a usb_urb_dir_in() helper function that can be used to determine
the direction of the URB. With that patch USB_DIR_IN control requests with
wLength == 0 are considered out requests by real USB HCDs. This patch
changes dummy-hcd to use the usb_urb_dir_in() helper to match that
behavior.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Link: https://lore.kernel.org/r/4ae9e68ebca02f08a93ac61fe065057c9a01f0a8.1571667489.git.andreyknvl@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoUSB: dummy-hcd: increase max number of devices to 32
Andrey Konovalov [Mon, 21 Oct 2019 14:20:58 +0000 (16:20 +0200)]
USB: dummy-hcd: increase max number of devices to 32

When fuzzing the USB subsystem with syzkaller, we currently use 8 testing
processes within one VM. To isolate testing processes from one another it
is desirable to assign a dedicated USB bus to each of those, which means
we need at least 8 Dummy UDC/HCD devices.

This patch increases the maximum number of Dummy UDC/HCD devices to 32
(more than 8 in case we need more of them in the future).

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Link: https://lore.kernel.org/r/665578f904484069bb6100fb20283b22a046ad9b.1571667489.git.andreyknvl@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: host: fotg210: add missed clk_put calls
Chuhong Yuan [Sat, 2 Nov 2019 06:22:45 +0000 (14:22 +0800)]
usb: host: fotg210: add missed clk_put calls

The driver forgets to call clk_put when probe fails and remove.
Add the calls to fix it.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20191102062245.4014-1-hslester96@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: Spelling s/disconnet/disconnect/
Geert Uytterhoeven [Thu, 24 Oct 2019 15:27:47 +0000 (17:27 +0200)]
usb: Spelling s/disconnet/disconnect/

Fix misspellings of "disconnect".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Peter Chen <peter.chen@nxp.com>
Link: https://lore.kernel.org/r/20191024152747.30617-1-geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: Spelling s/enpoint/endpoint/
Geert Uytterhoeven [Thu, 24 Oct 2019 15:28:33 +0000 (17:28 +0200)]
usb: Spelling s/enpoint/endpoint/

Fix misspellings of "endpoint".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Li Yang <leoyang.li@nxp.com>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Link: https://lore.kernel.org/r/20191024152833.30698-1-geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: usb251xb: Add support for USB2422
Uwe Kleine-König [Wed, 23 Oct 2019 10:52:50 +0000 (12:52 +0200)]
usb: usb251xb: Add support for USB2422

The USB2422 uses a different package that the USB251x and only comes in
a variant with 2 downstream ports. Other than that it is software
compatible.

Tested-by: Carsten Stelling <carsten.stelling@goerlitz.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20191023105250.16537-3-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: usb251xb: Document chip variant usb2422
Uwe Kleine-König [Wed, 23 Oct 2019 10:52:49 +0000 (12:52 +0200)]
usb: usb251xb: Document chip variant usb2422

The next patch introduces support for the USB2422. Add it to the list of
devices supported by the binding.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20191023105250.16537-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: usb251xb: Drop some unused defines
Uwe Kleine-König [Wed, 23 Oct 2019 10:52:48 +0000 (12:52 +0200)]
usb: usb251xb: Drop some unused defines

The five removed symbols are unused since they were introduced in commit
3ec72a2a1e5d ("usb: misc: add USB251xB/xBi Hi-Speed Hub Controller
Driver") back in 2017.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20191023105250.16537-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: host: oxu210hp-hcd: fix __iomem annotations
Ben Dooks (Codethink) [Thu, 17 Oct 2019 17:19:34 +0000 (18:19 +0100)]
usb: host: oxu210hp-hcd: fix __iomem annotations

There are a number of places in the driver where it fails
to maintain __iomem on pointers used to access registers
so fixup the warnings by adding these in the appropriate
places.

Examples of the sparse warnings fixed:

drivers/usb/host/oxu210hp-hcd.c:686:9: warning: incorrect type in argument 2 (different address spaces)
drivers/usb/host/oxu210hp-hcd.c:686:9:    expected void volatile [noderef] <asn:2> *addr
drivers/usb/host/oxu210hp-hcd.c:686:9:    got void *
drivers/usb/host/oxu210hp-hcd.c:686:9: warning: incorrect type in argument 2 (different address spaces)
drivers/usb/host/oxu210hp-hcd.c:686:9:    expected void volatile [noderef] <asn:2> *addr
drivers/usb/host/oxu210hp-hcd.c:686:9:    got void *
drivers/usb/host/oxu210hp-hcd.c:686:9: warning: incorrect type in argument 2 (different address spaces)
drivers/usb/host/oxu210hp-hcd.c:686:9:    expected void volatile [noderef] <asn:2> *addr
drivers/usb/host/oxu210hp-hcd.c:686:9:    got void *
drivers/usb/host/oxu210hp-hcd.c:681:16: warning: incorrect type in argument 1 (different address spaces)
drivers/usb/host/oxu210hp-hcd.c:681:16:    expected void const volatile [noderef] <asn:2> *addr
drivers/usb/host/oxu210hp-hcd.c:681:16:    got void *

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Link: https://lore.kernel.org/r/20191017171934.8771-1-ben.dooks@codethink.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoUSB: bcma: Add a check for devm_gpiod_get
Chuhong Yuan [Wed, 16 Oct 2019 08:35:32 +0000 (16:35 +0800)]
USB: bcma: Add a check for devm_gpiod_get

bcma_hcd_probe misses a check for devm_gpiod_get and may miss
the error.
Add a check for it and return the error if a failure occurs.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20191016083531.5734-1-hslester96@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: ohci-nxp: fix use of integer as pointer
Ben Dooks [Tue, 15 Oct 2019 14:19:45 +0000 (15:19 +0100)]
usb: ohci-nxp: fix use of integer as pointer

The hcd pointer in ohci_hcd_nxp_probe() is
being initialised with a 0, so fix to NULL to
avoid the following sparse warning:

drivers/usb/host/ohci-nxp.c:153:31: warning: Using plain integer as NULL pointer

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Link: https://lore.kernel.org/r/20191015141945.16067-1-ben.dooks@codethink.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoextcon: axp288: Remove the build-in connection description
Heikki Krogerus [Tue, 8 Oct 2019 12:26:00 +0000 (15:26 +0300)]
extcon: axp288: Remove the build-in connection description

Getting handle to the USB role switch by first finding its
software fwnode.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20191008122600.22340-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agousb: roles: Add usb_role_switch_find_by_fwnode()
Heikki Krogerus [Tue, 8 Oct 2019 12:25:59 +0000 (15:25 +0300)]
usb: roles: Add usb_role_switch_find_by_fwnode()

Simple wrapper function that searches USB role switches with
class_find_device_by_fwnode().

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20191008122600.22340-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoMerge 5.4-rc6 into usb-next
Greg Kroah-Hartman [Mon, 4 Nov 2019 05:41:09 +0000 (06:41 +0100)]
Merge 5.4-rc6 into usb-next

We need the USB fixes in here to build on top of.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoLinux 5.4-rc6 v5.4-rc6
Linus Torvalds [Sun, 3 Nov 2019 22:07:26 +0000 (14:07 -0800)]
Linux 5.4-rc6

4 years agoMerge tag 'usb-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 3 Nov 2019 16:25:25 +0000 (08:25 -0800)]
Merge tag 'usb-5.4-rc6' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "The USB sub-maintainers woke up this past week and sent a bunch of
  tiny fixes. Here are a lot of small patches that that resolve a bunch
  of reported issues in the USB core, drivers, serial drivers, gadget
  drivers, and of course, xhci :)

  All of these have been in linux-next with no reported issues"

* tag 'usb-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (31 commits)
  usb: dwc3: gadget: fix race when disabling ep with cancelled xfers
  usb: cdns3: gadget: Fix g_audio use case when connected to Super-Speed host
  usb: cdns3: gadget: reset EP_CLAIMED flag while unloading
  USB: serial: whiteheat: fix line-speed endianness
  USB: serial: whiteheat: fix potential slab corruption
  USB: gadget: Reject endpoints with 0 maxpacket value
  UAS: Revert commit 3ae62a42090f ("UAS: fix alignment of scatter/gather segments")
  usb-storage: Revert commit 747668dbc061 ("usb-storage: Set virt_boundary_mask to avoid SG overflows")
  usbip: Fix free of unallocated memory in vhci tx
  usbip: tools: Fix read_usb_vudc_device() error path handling
  usb: xhci: fix __le32/__le64 accessors in debugfs code
  usb: xhci: fix Immediate Data Transfer endianness
  xhci: Fix use-after-free regression in xhci clear hub TT implementation
  USB: ldusb: fix control-message timeout
  USB: ldusb: use unsigned size format specifiers
  USB: ldusb: fix ring-buffer locking
  USB: Skip endpoints with 0 maxpacket length
  usb: cdns3: gadget: Don't manage pullups
  usb: dwc3: remove the call trace of USBx_GFLADJ
  usb: gadget: configfs: fix concurrent issue between composite APIs
  ...

4 years agoMerge tag '5.4-rc6-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 2 Nov 2019 21:34:00 +0000 (14:34 -0700)]
Merge tag '5.4-rc6-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fix from Steve French:
 "A small smb3 memleak fix"

* tag '5.4-rc6-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6:
  fix memory leak in large read decrypt offload

4 years agoMerge tag 'hwmon-for-v5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groec...
Linus Torvalds [Sat, 2 Nov 2019 18:28:59 +0000 (11:28 -0700)]
Merge tag 'hwmon-for-v5.4-rc6' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Fix read timeout problem in ina3221 driver

 - Fix wrong bitmask in nct7904 driver

* tag 'hwmon-for-v5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (ina3221) Fix read timeout issue
  hwmon: (nct7904) Fix the incorrect value of vsen_mask & tcpu_mask & temp_mode in nct7904_data struct.

4 years agoMerge tag 'pwm/for-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry...
Linus Torvalds [Sat, 2 Nov 2019 18:23:09 +0000 (11:23 -0700)]
Merge tag 'pwm/for-5.4-rc6' of git://git./linux/kernel/git/thierry.reding/linux-pwm

Pull pwm fixes from Thierry Reding:
 "It turned out that relying solely on drivers storing all the PWM state
  in hardware was a little premature and causes a number of subtle (and
  some not so subtle) regressions. Revert the offending patch for now"

* tag 'pwm/for-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  Revert "pwm: Let pwm_get_state() return the last implemented state"

4 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 2 Nov 2019 18:15:52 +0000 (11:15 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Nine changes, eight in drivers [ufs, target, lpfc x 2, qla2xxx x 4]
  and one core change in sd that fixes an I/O failure on DIF type 3
  devices"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla2xxx: stop timer in shutdown path
  scsi: sd: define variable dif as unsigned int instead of bool
  scsi: target: cxgbit: Fix cxgbit_fw4_ack()
  scsi: qla2xxx: Fix partial flash write of MBI
  scsi: qla2xxx: Initialized mailbox to prevent driver load failure
  scsi: lpfc: Honor module parameter lpfc_use_adisc
  scsi: ufs-bsg: Wake the device before sending raw upiu commands
  scsi: lpfc: Check queue pointer before use
  scsi: qla2xxx: fixup incorrect usage of host_byte

4 years agoMerge tag 'powerpc-5.4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Sat, 2 Nov 2019 18:08:19 +0000 (11:08 -0700)]
Merge tag 'powerpc-5.4-4' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "Our recent cleanup of EEH led to an oops on bare metal machines when
  the cxl (CAPI) driver creates virtual devices for an attached FPGA
  accelerator.

  The "secure virtual machine" support we added in v5.4 had a bug if the
  kernel was relocated (moved during boot), in those cases the signature
  of the kernel text wouldn't verify and the Ultravisor would refuse to
  run the VM.

  A recent change to disable interrupts before calling
  arch_cpu_idle_dead() caused a WARN_ON() in our bare metal CPU offline
  code to always trigger.

  The KUAP (SMAP) support we added for 32-bit Book3S had a bug if the
  address range crossed a segment (256MB) boundary which could lead to
  spurious faults.

  Thanks to: Christophe Leroy, Frederic Barrat, Michael Anderson,
  Nicholas Piggin, Sam Bobroff, Thiago Jung Bauermann"

* tag 'powerpc-5.4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/powernv: Fix CPU idle to be called with IRQs disabled
  powerpc/prom_init: Undo relocation before entering secure mode
  powerpc/powernv/eeh: Fix oops when probing cxl devices
  powerpc/32s: fix allow/prevent_user_access() when crossing segment boundaries.

4 years agoMerge tag 's390-5.4-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Sat, 2 Nov 2019 18:00:26 +0000 (11:00 -0700)]
Merge tag 's390-5.4-6' of git://git./linux/kernel/git/s390/linux

Pull s390 fixes from Vasily Gorbik:

 - Fix cpu idle time accounting

 - Fix stack unwinder case when both pt_regs and sp are specified

 - Fix information leak via cmm timeout proc handler

* tag 's390-5.4-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/idle: fix cpu idle time calculation
  s390/unwind: fix mixing regs and sp
  s390/cmm: fix information leak in cmm_timeout_handler()

4 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Sat, 2 Nov 2019 00:48:11 +0000 (17:48 -0700)]
Merge git://git./linux/kernel/git/netdev/net

Pull networking fixes from David Miller:

 1) Fix free/alloc races in batmanadv, from Sven Eckelmann.

 2) Several leaks and other fixes in kTLS support of mlx5 driver, from
    Tariq Toukan.

 3) BPF devmap_hash cost calculation can overflow on 32-bit, from Toke
    Høiland-Jørgensen.

 4) Add an r8152 device ID, from Kazutoshi Noguchi.

 5) Missing include in ipv6's addrconf.c, from Ben Dooks.

 6) Use siphash in flow dissector, from Eric Dumazet. Attackers can
    easily infer the 32-bit secret otherwise etc.

 7) Several netdevice nesting depth fixes from Taehee Yoo.

 8) Fix several KCSAN reported errors, from Eric Dumazet. For example,
    when doing lockless skb_queue_empty() checks, and accessing
    sk_napi_id/sk_incoming_cpu lockless as well.

 9) Fix jumbo packet handling in RXRPC, from David Howells.

10) Bump SOMAXCONN and tcp_max_syn_backlog values, from Eric Dumazet.

11) Fix DMA synchronization in gve driver, from Yangchun Fu.

12) Several bpf offload fixes, from Jakub Kicinski.

13) Fix sk_page_frag() recursion during memory reclaim, from Tejun Heo.

14) Fix ping latency during high traffic rates in hisilicon driver, from
    Jiangfent Xiao.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (146 commits)
  net: fix installing orphaned programs
  net: cls_bpf: fix NULL deref on offload filter removal
  selftests: bpf: Skip write only files in debugfs
  selftests: net: reuseport_dualstack: fix uninitalized parameter
  r8169: fix wrong PHY ID issue with RTL8168dp
  net: dsa: bcm_sf2: Fix IMP setup for port different than 8
  net: phylink: Fix phylink_dbg() macro
  gve: Fixes DMA synchronization.
  inet: stop leaking jiffies on the wire
  ixgbe: Remove duplicate clear_bit() call
  Documentation: networking: device drivers: Remove stray asterisks
  e1000: fix memory leaks
  i40e: Fix receive buffer starvation for AF_XDP
  igb: Fix constant media auto sense switching when no cable is connected
  net: ethernet: arc: add the missed clk_disable_unprepare
  igb: Enable media autosense for the i350.
  igb/igc: Don't warn on fatal read failures when the device is removed
  tcp: increase tcp_max_syn_backlog max value
  net: increase SOMAXCONN to 4096
  netdevsim: Fix use-after-free during device dismantle
  ...

4 years agoMerge tag 'nfs-for-5.4-3' of git://git.linux-nfs.org/projects/anna/linux-nfs
Linus Torvalds [Sat, 2 Nov 2019 00:37:44 +0000 (17:37 -0700)]
Merge tag 'nfs-for-5.4-3' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client bugfixes from Anna Schumaker:
 "This contains two delegation fixes (with the RCU lock leak fix marked
  for stable), and three patches to fix destroying the the sunrpc back
  channel.

  Stable bugfixes:

   - Fix an RCU lock leak in nfs4_refresh_delegation_stateid()

  Other fixes:

   - The TCP back channel mustn't disappear while requests are
     outstanding

   - The RDMA back channel mustn't disappear while requests are
     outstanding

   - Destroy the back channel when we destroy the host transport

   - Don't allow a cached open with a revoked delegation"

* tag 'nfs-for-5.4-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
  NFSv4: Don't allow a cached open with a revoked delegation
  SUNRPC: Destroy the back channel when we destroy the host transport
  SUNRPC: The RDMA back channel mustn't disappear while requests are outstanding
  SUNRPC: The TCP back channel mustn't disappear while requests are outstanding

4 years agoMerge tag 'for-linus-20191101' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 2 Nov 2019 00:33:12 +0000 (17:33 -0700)]
Merge tag 'for-linus-20191101' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - Two small nvme fixes, one is a fabrics connection fix, the other one
   a cleanup made possible by that fix (Anton, via Keith)

 - Fix requeue handling in umb ubd (Anton)

 - Fix spin_lock_irq() nesting in blk-iocost (Dan)

 - Three small io_uring fixes:
     - Install io_uring fd after done with ctx (me)
     - Clear ->result before every poll issue (me)
     - Fix leak of shadow request on error (Pavel)

* tag 'for-linus-20191101' of git://git.kernel.dk/linux-block:
  iocost: don't nest spin_lock_irq in ioc_weight_write()
  io_uring: ensure we clear io_kiocb->result before each issue
  um-ubd: Entrust re-queue to the upper layers
  nvme-multipath: remove unused groups_only mode in ana log
  nvme-multipath: fix possible io hang after ctrl reconnect
  io_uring: don't touch ctx in setup after ring fd install
  io_uring: Fix leaked shadow_req

4 years agoMerge tag 'riscv/for-v5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv...
Linus Torvalds [Sat, 2 Nov 2019 00:20:53 +0000 (17:20 -0700)]
Merge tag 'riscv/for-v5.4-rc6' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Paul Walmsley:
 "One fix for PCIe users:

   - Fix legacy PCI I/O port access emulation

  One set of cleanups:

   - Resolve most of the warnings generated by sparse across arch/riscv.
     No functional changes

  And one MAINTAINERS update:

   - Update Palmer's E-mail address"

* tag 'riscv/for-v5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  MAINTAINERS: Change to my personal email address
  RISC-V: Add PCIe I/O BAR memory mapping
  riscv: for C functions called only from assembly, mark with __visible
  riscv: fp: add missing __user pointer annotations
  riscv: add missing header file includes
  riscv: mark some code and data as file-static
  riscv: init: merge split string literals in preprocessor directive
  riscv: add prototypes for assembly language functions from head.S

4 years agoMerge branch 'parisc-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Fri, 1 Nov 2019 22:16:25 +0000 (15:16 -0700)]
Merge branch 'parisc-5.4-3' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc fix from Helge Deller:
 "Fix a parisc kernel crash with ftrace functions when compiled without
  frame pointers"

* 'parisc-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: fix frame pointer in ftrace_regs_caller()

4 years agoMerge branch 'fix-BPF-offload-related-bugs'
David S. Miller [Fri, 1 Nov 2019 22:16:01 +0000 (15:16 -0700)]
Merge branch 'fix-BPF-offload-related-bugs'

Jakub Kicinski says:

====================
fix BPF offload related bugs

test_offload.py catches some recently added bugs.

First of a bug in test_offload.py itself after recent changes
to netdevsim is fixed.

Second patch fixes a bug in cls_bpf, and last one addresses
a problem with the recently added XDP installation optimization.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: fix installing orphaned programs
Jakub Kicinski [Fri, 1 Nov 2019 03:07:00 +0000 (20:07 -0700)]
net: fix installing orphaned programs

When netdevice with offloaded BPF programs is destroyed
the programs are orphaned and removed from the program
IDA - their IDs get released (the programs may remain
accessible via existing open file descriptors and pinned
files). After IDs are released they are set to 0.

This confuses dev_change_xdp_fd() because it compares
the __dev_xdp_query() result where 0 means no program
with prog->aux->id where 0 means orphaned.

dev_change_xdp_fd() would have incorrectly returned success
even though it had not installed the program.

Since drivers already catch this case via bpf_offload_dev_match()
let them handle this case. The error message drivers produce in
this case ("program loaded for a different device") is in fact
correct as the orphaned program must had to be loaded for a
different device.

Fixes: c14a9f633d9e ("net: Don't call XDP_SETUP_PROG when nothing is changed")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: cls_bpf: fix NULL deref on offload filter removal
Jakub Kicinski [Fri, 1 Nov 2019 03:06:59 +0000 (20:06 -0700)]
net: cls_bpf: fix NULL deref on offload filter removal

Commit 401192113730 ("net: sched: refactor block offloads counter
usage") missed the fact that either new prog or old prog may be
NULL.

Fixes: 401192113730 ("net: sched: refactor block offloads counter usage")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoselftests: bpf: Skip write only files in debugfs
Jakub Kicinski [Fri, 1 Nov 2019 03:06:58 +0000 (20:06 -0700)]
selftests: bpf: Skip write only files in debugfs

DebugFS for netdevsim now contains some "action trigger" files
which are write only. Don't try to capture the contents of those.

Note that we can't use os.access() because the script requires
root.

Fixes: 4418f862d675 ("netdevsim: implement support for devlink region and snapshots")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoselftests: net: reuseport_dualstack: fix uninitalized parameter
Wei Wang [Thu, 31 Oct 2019 23:24:36 +0000 (16:24 -0700)]
selftests: net: reuseport_dualstack: fix uninitalized parameter

This test reports EINVAL for getsockopt(SOL_SOCKET, SO_DOMAIN)
occasionally due to the uninitialized length parameter.
Initialize it to fix this, and also use int for "test_family" to comply
with the API standard.

Fixes: d6a61f80b871 ("soreuseport: test mixed v4/v6 sockets")
Reported-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Wei Wang <weiwan@google.com>
Cc: Craig Gallek <cgallek@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agor8169: fix wrong PHY ID issue with RTL8168dp
Heiner Kallweit [Thu, 31 Oct 2019 23:10:21 +0000 (00:10 +0100)]
r8169: fix wrong PHY ID issue with RTL8168dp

As reported in [0] at least one RTL8168dp version has problems
establishing a link. This chip version has an integrated RTL8211b PHY,
however the chip seems to report a wrong PHY ID, resulting in a wrong
PHY driver (for Generic Realtek PHY) being loaded.
Work around this issue by adding a hook to r8168dp_2_mdio_read()
for returning the correct PHY ID.

[0] https://bbs.archlinux.org/viewtopic.php?id=246508

Fixes: 242cd9b5866a ("r8169: use phy_resume/phy_suspend")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: dsa: bcm_sf2: Fix IMP setup for port different than 8
Florian Fainelli [Thu, 31 Oct 2019 22:54:05 +0000 (15:54 -0700)]
net: dsa: bcm_sf2: Fix IMP setup for port different than 8

Since it became possible for the DSA core to use a CPU port different
than 8, our bcm_sf2_imp_setup() function was broken because it assumes
that registers are applicable to port 8. In particular, the port's MAC
is going to stay disabled, so make sure we clear the RX_DIS and TX_DIS
bits if we are not configured for port 8.

Fixes: 9f91484f6fcc ("net: dsa: make "label" property optional for dsa2")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: phylink: Fix phylink_dbg() macro
Florian Fainelli [Thu, 31 Oct 2019 22:42:26 +0000 (15:42 -0700)]
net: phylink: Fix phylink_dbg() macro

The phylink_dbg() macro does not follow dynamic debug or defined(DEBUG)
and as a result, it spams the kernel log since a PR_DEBUG level is
currently used. Fix it to be defined appropriately whether
CONFIG_DYNAMIC_DEBUG or defined(DEBUG) are set.

Fixes: 17091180b152 ("net: phylink: Add phylink_{printk, err, warn, info, dbg} macros")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agogve: Fixes DMA synchronization.
Yangchun Fu [Fri, 1 Nov 2019 17:09:56 +0000 (10:09 -0700)]
gve: Fixes DMA synchronization.

Synces the DMA buffer properly in order for CPU and device to see
the most up-to-data data.

Signed-off-by: Yangchun Fu <yangchun@google.com>
Reviewed-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoinet: stop leaking jiffies on the wire
Eric Dumazet [Fri, 1 Nov 2019 17:32:19 +0000 (10:32 -0700)]
inet: stop leaking jiffies on the wire

Historically linux tried to stick to RFC 791, 1122, 2003
for IPv4 ID field generation.

RFC 6864 made clear that no matter how hard we try,
we can not ensure unicity of IP ID within maximum
lifetime for all datagrams with a given source
address/destination address/protocol tuple.

Linux uses a per socket inet generator (inet_id), initialized
at connection startup with a XOR of 'jiffies' and other
fields that appear clear on the wire.

Thiemo Nagel pointed that this strategy is a privacy
concern as this provides 16 bits of entropy to fingerprint
devices.

Let's switch to a random starting point, this is just as
good as far as RFC 6864 is concerned and does not leak
anything critical.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Thiemo Nagel <tnagel@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Fri, 1 Nov 2019 21:50:27 +0000 (14:50 -0700)]
Merge branch '1GbE' of git://git./linux/kernel/git/jkirsher/net-queue

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2019-11-01

This series contains updates to e1000, igb, igc, ixgbe, i40e and driver
documentation.

Lyude Paul fixes an issue where a fatal read error occurs when the
device is unplugged from the machine.  So change the read error into a
warn while the device is still present.

Manfred Rudigier found that the i350 device was not apart of the "Media
Auto Sense" feature, yet the device supports it.  So add the missing
i350 device to the check and fix an issue where the media auto sense
would flip/flop when no cable was connected to the port causing spurious
kernel log messages.

I fixed an issue where the fix to resolve receive buffer starvation was
applied in more than one place in the driver, one being the incorrect
location in the i40e driver.

Wenwen Wang fixes a potential memory leak in e1000 where allocated
memory is not properly cleaned up in one of the error paths.

Jonathan Neuschäfer cleans up the driver documentation to be consistent
and remove the footnote reference, since the footnote no longer exists in
the documentation.

Igor Pylypiv cleans up a duplicate clearing of a bit, no need to clear
it twice.

v2: Fixed alignment issue in patch 3 of the series based on community
    feedback.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoixgbe: Remove duplicate clear_bit() call
Igor Pylypiv [Fri, 4 Oct 2019 06:53:57 +0000 (23:53 -0700)]
ixgbe: Remove duplicate clear_bit() call

__IXGBE_RX_BUILD_SKB_ENABLED bit is already cleared.

Signed-off-by: Igor Pylypiv <igor.pylypiv@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
4 years agoDocumentation: networking: device drivers: Remove stray asterisks
Jonathan Neuschäfer [Wed, 2 Oct 2019 15:09:55 +0000 (17:09 +0200)]
Documentation: networking: device drivers: Remove stray asterisks

These asterisks were once references to a line that said:
  "* Other names and brands may be claimed as the property of others."
But now, they serve no purpose; they can only irritate the reader.

Fixes: de3edab4276c ("e1000: update README for e1000")
Fixes: a3fb65680f65 ("e100.txt: Cleanup license info in kernel doc")
Fixes: da8c01c4502a ("e1000e.txt: Add e1000e documentation")
Fixes: f12a84a9f650 ("Documentation: fm10k: Add kernel documentation")
Fixes: b55c52b1938c ("igb.txt: Add igb documentation")
Fixes: c4e9b56e2442 ("igbvf.txt: Add igbvf Documentation")
Fixes: d7064f4c192c ("Documentation/networking/: Update Intel wired LAN driver documentation")
Fixes: c4b8c01112a1 ("ixgbevf.txt: Update ixgbevf documentation")
Fixes: 1e06edcc2f22 ("Documentation: i40e: Prepare documentation for RST conversion")
Fixes: 105bf2fe6b32 ("i40evf: add driver to kernel build system")
Fixes: 1fae869bcf3d ("Documentation: ice: Prepare documentation for RST conversion")
Fixes: df69ba43217d ("ionic: Add basic framework for IONIC Network device driver")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
4 years agoe1000: fix memory leaks
Wenwen Wang [Mon, 12 Aug 2019 05:59:21 +0000 (00:59 -0500)]
e1000: fix memory leaks

In e1000_set_ringparam(), 'tx_old' and 'rx_old' are not deallocated if
e1000_up() fails, leading to memory leaks. Refactor the code to fix this
issue.

Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
4 years agoi40e: Fix receive buffer starvation for AF_XDP
Jeff Kirsher [Mon, 7 Oct 2019 22:07:24 +0000 (15:07 -0700)]
i40e: Fix receive buffer starvation for AF_XDP

Magnus's fix to resolve a potential receive buffer starvation for AF_XDP
got applied to both the i40e_xsk_umem_enable/disable() functions, when it
should have only been applied to the "enable".  So clean up the undesired
code in the disable function.

CC: Magnus Karlsson <magnus.karlsson@intel.com>
Fixes: 1f459bdc2007 ("i40e: fix potential RX buffer starvation for AF_XDP")
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
4 years agoigb: Fix constant media auto sense switching when no cable is connected
Manfred Rudigier [Thu, 15 Aug 2019 20:55:20 +0000 (13:55 -0700)]
igb: Fix constant media auto sense switching when no cable is connected

At least on the i350 there is an annoying behavior that is maybe also
present on 82580 devices, but was probably not noticed yet as MAS is not
widely used.

If no cable is connected on both fiber/copper ports the media auto sense
code will constantly swap between them as part of the watchdog task and
produce many unnecessary kernel log messages.

The swap code responsible for this behavior (switching to fiber) should
not be executed if the current media type is copper and there is no signal
detected on the fiber port. In this case we can safely wait until the
AUTOSENSE_EN bit is cleared.

Signed-off-by: Manfred Rudigier <manfred.rudigier@omicronenergy.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
4 years agoMerge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 1 Nov 2019 18:49:54 +0000 (11:49 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:
 "Fix two scheduler topology bugs/oversights on Juno r0 2+4 big.LITTLE
  systems"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/topology: Allow sched_asym_cpucapacity to be disabled
  sched/topology: Don't try to build empty sched domains

4 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 1 Nov 2019 18:40:47 +0000 (11:40 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Misc fixes: an ABI fix for a reserved field, AMD IBS fixes, an Intel
  uncore PMU driver fix and a header typo fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/headers: Fix spelling s/EACCESS/EACCES/, s/privilidge/privilege/
  perf/x86/uncore: Fix event group support
  perf/x86/amd/ibs: Handle erratum #420 only on the affected CPU family (10h)
  perf/x86/amd/ibs: Fix reading of the IBS OpData register and thus precise RIP validity
  perf/core: Start rejecting the syscall with attr.__reserved_2 set

4 years agoMerge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 1 Nov 2019 18:32:50 +0000 (11:32 -0700)]
Merge branch 'efi-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull EFI fixes from Ingo Molnar:
 "Various fixes all over the map: prevent boot crashes on HyperV,
  classify UEFI randomness as bootloader randomness, fix EFI boot for
  the Raspberry Pi2, fix efi_test permissions, etc"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/efi_test: Lock down /dev/efi_test and require CAP_SYS_ADMIN
  x86, efi: Never relocate kernel below lowest acceptable address
  efi: libstub/arm: Account for firmware reserved memory at the base of RAM
  efi/random: Treat EFI_RNG_PROTOCOL output as bootloader randomness
  efi/tpm: Return -EINVAL when determining tpm final events log size fails
  efi: Make CONFIG_EFI_RCI2_TABLE selectable on x86 only

4 years agoMerge tag 'wireless-drivers-2019-11-01' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Fri, 1 Nov 2019 17:36:46 +0000 (10:36 -0700)]
Merge tag 'wireless-drivers-2019-11-01' of git://git./linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 5.4

Third set of fixes for 5.4. Most of them are for iwlwifi but important
fixes also for rtlwifi and mt76, the overflow fix for rtlwifi being
most important.

iwlwifi

* fix merge damage on earlier patch

* various fixes to device id handling

* fix scan config command handling which caused firmware asserts

rtlwifi

* fix overflow on P2P IE handling

* don't deliver too small frames to mac80211

mt76

* disable PCIE_ASPM

* fix buffer DMA unmap on certain cases
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: ethernet: arc: add the missed clk_disable_unprepare
Chuhong Yuan [Fri, 1 Nov 2019 12:17:25 +0000 (20:17 +0800)]
net: ethernet: arc: add the missed clk_disable_unprepare

The remove misses to disable and unprepare priv->macclk like what is done
when probe fails.
Add the missed call in remove.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 1 Nov 2019 17:03:46 +0000 (10:03 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "These are almost exclusively related to CPU errata in CPUs from
  Broadcom and Qualcomm where the workarounds were either not being
  enabled when they should have been or enabled when they shouldn't have
  been.

  The only "interesting" fix is ensuring that writeable, shared mappings
  are initially mapped as clean since we inadvertently broke the logic
  back in v4.14 and then noticed the problem via code inspection the
  other day.

  The only critical issue we have outstanding is a sporadic NULL
  dereference in the scheduler, which doesn't appear to be
  arm64-specific and PeterZ is tearing his hair out over it at the
  moment.

  Summary:

   - Enable CPU errata workarounds for Broadcom Brahma-B53

   - Enable CPU errata workarounds for Qualcomm Hydra/Kryo CPUs

   - Fix initial dirty status of writeable, shared mappings"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: apply ARM64_ERRATUM_843419 workaround for Brahma-B53 core
  arm64: Brahma-B53 is SSB and spectre v2 safe
  arm64: apply ARM64_ERRATUM_845719 workaround for Brahma-B53 core
  arm64: cpufeature: Enable Qualcomm Falkor errata 1009 for Kryo
  arm64: cpufeature: Enable Qualcomm Falkor/Kryo errata 1003
  arm64: Ensure VM_WRITE|VM_SHARED ptes are clean by default

4 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 1 Nov 2019 16:54:38 +0000 (09:54 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "generic:
   - fix memory leak on failure to create VM

  x86:
   - fix MMU corner case with AMD nested paging disabled"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is active
  kvm: call kvm_arch_destroy_vm if vm creation fails
  kvm: Allocate memslots and buses before calling kvm_arch_init_vm

4 years agoMerge tag 'drm-fixes-2019-11-01' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 1 Nov 2019 16:41:08 +0000 (09:41 -0700)]
Merge tag 'drm-fixes-2019-11-01' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "This is the regular drm fixes pull request for 5.4-rc6. It's a bit
  larger than I'd like but then last week was quieter than usual.

  The main fixes are amdgpu, and the two bigger area are navi fixes
  which are the newest GPU range so still getting actively fixed up, but
  also a bunch of clang stack alignment fixes (as amdgpu uses double in
  some places).

  Otherwise it's all fairly run of the mill fixes, i915, panfrost,
  etnaviv, v3d and radeon, along with a core scheduler fix.

  Summary:

  amdgpu:
   - clang alignment fixes
   - Updated golden settings
   - navi: gpuvm, sdma and display fixes
   - Freesync fix
   - Gamma fix for DCN
   - DP dongle detection fix
   - vega10: Fix for undervolting

  radeon:
   - reenable kexec fix for ppc

  scheduler:
   - set an error if hw job failed

  i915:
   - fix PCH reference clock for HSW/BDW
   - TGL display PLL doc fix

  panfrost:
   - warning fix
   - runtime pm fix
   - bad pointer dereference fix

  v3d:
   - memleak fix

  etnaviv:
   - memory corruption fix
   - deadlock fix
   - reintroduce lost debug message"

* tag 'drm-fixes-2019-11-01' of git://anongit.freedesktop.org/drm/drm: (29 commits)
  drm/amdgpu: enable -msse2 for GCC 7.1+ users
  drm/amdgpu: fix stack alignment ABI mismatch for GCC 7.1+
  drm/amdgpu: fix stack alignment ABI mismatch for Clang
  drm/radeon: Fix EEH during kexec
  drm/amdgpu/gmc10: properly set BANK_SELECT and FRAGMENT_SIZE
  drm/amdgpu/powerplay/vega10: allow undervolting in p7
  dc.c:use kzalloc without test
  drm/amd/display: setting the DIG_MODE to the correct value.
  drm/amd/display: Passive DP->HDMI dongle detection fix
  drm/amd/display: add 50us buffer as WA for pstate switch in active
  drm/amd/display: Allow inverted gamma
  drm/amd/display: do not synchronize "drr" displays
  drm/amdgpu: If amdgpu_ib_schedule fails return back the error.
  drm/sched: Set error to s_fence if HW job submission failed.
  drm/amdgpu/gfx10: update gfx golden settings for navi12
  drm/amdgpu/gfx10: update gfx golden settings for navi14
  drm/amdgpu/gfx10: update gfx golden settings
  drm/amd/display: Change Navi14's DWB flag to 1
  drm/amdgpu/sdma5: do not execute 0-sized IBs (v2)
  drm/amdgpu: Fix SDMA hang when performing VKexample test
  ...

4 years agoMerge tag 'pm-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 1 Nov 2019 16:30:48 +0000 (09:30 -0700)]
Merge tag 'pm-5.4-rc6' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a recently introduced (mostly theoretical) issue that the requests
  to confine the maximum CPU frequency coming from the platform firmware
  may not be taken into account if multiple CPUs are covered by one
  cpufreq policy on a system with ACPI"

* tag 'pm-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: processor: Add QoS requests for all CPUs

4 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Linus Torvalds [Fri, 1 Nov 2019 16:21:48 +0000 (09:21 -0700)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "A number of bug fixes and a regression fix:

   - Various issues from static analysis in hfi1, uverbs, hns, and cxgb4

   - Fix for deadlock in a case when the new auto RDMA module loading is
     used

   - Missing _irq notation in a prior -rc patch found by lockdep

   - Fix a locking and lifetime issue in siw

   - Minor functional bug fixes in cxgb4, mlx5, qedr

   - Fix a regression where vlan interfaces no longer worked with RDMA
     CM in some cases"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/hns: Prevent memory leaks of eq->buf_list
  RDMA/iw_cxgb4: Avoid freeing skb twice in arp failure case
  RDMA/mlx5: Use irq xarray locking for mkey_table
  IB/core: Avoid deadlock during netlink message handling
  RDMA/nldev: Skip counter if port doesn't match
  RDMA/uverbs: Prevent potential underflow
  IB/core: Use rdma_read_gid_l2_fields to compare GID L2 fields
  RDMA/qedr: Fix reported firmware version
  RDMA/siw: free siw_base_qp in kref release routine
  RDMA/iwcm: move iw_rem_ref() calls out of spinlock
  iw_cxgb4: fix ECN check on the passive accept
  IB/hfi1: Use a common pad buffer for 9B and 16B packets
  IB/hfi1: Avoid excessive retry for TID RDMA READ request
  RDMA/mlx5: Clear old rate limit when closing QP

4 years agoMerge tag 'sound-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 1 Nov 2019 16:18:00 +0000 (09:18 -0700)]
Merge tag 'sound-5.4-rc6' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A couple of regression fixes and a fix for mutex deadlock at
  hog-unplug, as well as other device-specific fixes:

   - A commit to avoid the spurious unsolicited interrupt on HD-audio
     bus caused a stall at shutdown, so it's reverted now.

   - The recent support of AMD/Nvidia audio component binding caused a
     mutex deadlock; fixed by splitting to another mutex

   - The device hot-unplug and the ALSA timer close combo may lead to
     another mutex deadlock; fixed by moving put_device() calls

   - Usual device-specific small quirks for HD- and USB-audio drivers

   - An old error check fix in FireWire driver"

* tag 'sound-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: timer: Fix mutex deadlock at releasing card
  ALSA: hda - Fix mutex deadlock in HDMI codec driver
  Revert "ALSA: hda: Flush interrupts on disabling"
  ALSA: bebob: Fix prototype of helper function to return negative value
  ALSA: hda/realtek - Fix 2 front mics of codec 0x623
  ALSA: hda/realtek - Add support for ALC623
  ALSA: usb-audio: Add DSD support for Gustard U16/X26 USB Interface

4 years agoNFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
Trond Myklebust [Thu, 31 Oct 2019 22:40:33 +0000 (18:40 -0400)]
NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()

A typo in nfs4_refresh_delegation_stateid() means we're leaking an
RCU lock, and always returning a value of 'false'. As the function
description states, we were always supposed to return 'true' if a
matching delegation was found.

Fixes: 12f275cdd163 ("NFSv4: Retry CLOSE and DELEGRETURN on NFS4ERR_OLD_STATEID.")
Cc: stable@vger.kernel.org # v4.15+
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
4 years agoNFSv4: Don't allow a cached open with a revoked delegation
Trond Myklebust [Thu, 31 Oct 2019 22:40:32 +0000 (18:40 -0400)]
NFSv4: Don't allow a cached open with a revoked delegation

If the delegation is marked as being revoked, we must not use it
for cached opens.

Fixes: 869f9dfa4d6d ("NFSv4: Fix races between nfs_remove_bad_delegation() and delegation return")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
4 years agoarm64: apply ARM64_ERRATUM_843419 workaround for Brahma-B53 core
Florian Fainelli [Thu, 31 Oct 2019 21:47:25 +0000 (14:47 -0700)]
arm64: apply ARM64_ERRATUM_843419 workaround for Brahma-B53 core

The Broadcom Brahma-B53 core is susceptible to the issue described by
ARM64_ERRATUM_843419 so this commit enables the workaround to be applied
when executing on that core.

Since there are now multiple entries to match, we must convert the
existing ARM64_ERRATUM_843419 into an erratum list and use
cpucap_multi_entry_cap_matches to match our entries.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
4 years agoarm64: Brahma-B53 is SSB and spectre v2 safe
Florian Fainelli [Thu, 31 Oct 2019 21:47:24 +0000 (14:47 -0700)]
arm64: Brahma-B53 is SSB and spectre v2 safe

Add the Brahma-B53 CPU (all versions) to the whitelists of CPUs for the
SSB and spectre v2 mitigations.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
4 years agoarm64: apply ARM64_ERRATUM_845719 workaround for Brahma-B53 core
Doug Berger [Thu, 31 Oct 2019 21:47:23 +0000 (14:47 -0700)]
arm64: apply ARM64_ERRATUM_845719 workaround for Brahma-B53 core

The Broadcom Brahma-B53 core is susceptible to the issue described by
ARM64_ERRATUM_845719 so this commit enables the workaround to be applied
when executing on that core.

Since there are now multiple entries to match, we must convert the
existing ARM64_ERRATUM_845719 into an erratum list.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
4 years agoMerge tag 'drm-fixes-5.4-2019-10-30' of git://people.freedesktop.org/~agd5f/linux...
Dave Airlie [Fri, 1 Nov 2019 01:27:39 +0000 (11:27 +1000)]
Merge tag 'drm-fixes-5.4-2019-10-30' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

drm-fixes-5.4-2019-10-30:

amdgpu:
- clang fixes
- Updated golden settings
- GPUVM fixes for navi
- Navi sdma fix
- Navi display fixes
- Freesync fix
- Gamma fix for DCN
- DP dongle detection fix
- Fix for undervolting on vega10

radeon:
- enable kexec fix for PPC

scheduler:
- set an error on fence if hw job failed

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191030162339.44366-1-alexander.deucher@amd.com
4 years agoMerge tag 'drm-intel-fixes-2019-10-31' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Fri, 1 Nov 2019 01:13:35 +0000 (11:13 +1000)]
Merge tag 'drm-intel-fixes-2019-10-31' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix PCH reference clock for FDI on HSW/BDW which was causing users blank screen
- Small documentation fix for TGL display PLLs

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191031171209.GA6586@intel.com
4 years agoMerge tag 'drm-misc-fixes-2019-10-30-1' of git://anongit.freedesktop.org/drm/drm...
Dave Airlie [Fri, 1 Nov 2019 01:09:42 +0000 (11:09 +1000)]
Merge tag 'drm-misc-fixes-2019-10-30-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

 - three fixes for panfrost, one to silence a warning, one to fix
   runtime_pm and one to prevent bogus pointer dereferences
 - one fix for a memleak in v3d

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191030182207.evrscl7lnv42u5zu@hendrix
4 years agoMerge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm...
Dave Airlie [Fri, 1 Nov 2019 01:08:24 +0000 (11:08 +1000)]
Merge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm-fixes

One memory corruption fix in the MMUv2 GPU coredump code, a deadlock
fix also in the coredump code and reintroduction of a helpful message,
which got dropped by accident in this cycle.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/b0d640267662e3ce5e0089d0afedc1baba55058d.camel@pengutronix.de
4 years agoigb: Enable media autosense for the i350.
Manfred Rudigier [Thu, 15 Aug 2019 20:55:19 +0000 (13:55 -0700)]
igb: Enable media autosense for the i350.

This patch enables the hardware feature "Media Auto Sense" also on the
i350. It works in the same way as on the 82850 devices. Hardware designs
using dual PHYs (fiber/copper) can enable this feature by setting the MAS
enable bits in the NVM_COMPAT register (0x03) in the EEPROM.

Signed-off-by: Manfred Rudigier <manfred.rudigier@omicronenergy.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
4 years agoigb/igc: Don't warn on fatal read failures when the device is removed
Lyude Paul [Thu, 22 Aug 2019 18:33:18 +0000 (14:33 -0400)]
igb/igc: Don't warn on fatal read failures when the device is removed

Fatal read errors are worth warning about, unless of course the device
was just unplugged from the machine - something that's a rather normal
occurrence when the igb/igc adapter is located on a Thunderbolt dock. So,
let's only WARN() if there's a fatal read error while the device is
still present.

This fixes the following WARN splat that's been appearing whenever I
unplug my Caldigit TS3 Thunderbolt dock from my laptop:

  igb 0000:09:00.0 enp9s0: PCIe link lost
  ------------[ cut here ]------------
  igb: Failed to read reg 0x18!
  WARNING: CPU: 7 PID: 516 at
  drivers/net/ethernet/intel/igb/igb_main.c:756 igb_rd32+0x57/0x6a [igb]
  Modules linked in: igb dca thunderbolt fuse vfat fat elan_i2c mei_wdt
  mei_hdcp i915 wmi_bmof intel_wmi_thunderbolt iTCO_wdt
  iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp joydev
  coretemp crct10dif_pclmul crc32_pclmul i2c_algo_bit ghash_clmulni_intel
  intel_cstate drm_kms_helper intel_uncore syscopyarea sysfillrect
  sysimgblt fb_sys_fops intel_rapl_perf intel_xhci_usb_role_switch mei_me
  drm roles idma64 i2c_i801 ucsi_acpi typec_ucsi mei intel_lpss_pci
  processor_thermal_device typec intel_pch_thermal intel_soc_dts_iosf
  intel_lpss int3403_thermal thinkpad_acpi wmi int340x_thermal_zone
  ledtrig_audio int3400_thermal acpi_thermal_rel acpi_pad video
  pcc_cpufreq ip_tables serio_raw nvme nvme_core crc32c_intel uas
  usb_storage e1000e i2c_dev
  CPU: 7 PID: 516 Comm: kworker/u16:3 Not tainted 5.2.0-rc1Lyude-Test+ #14
  Hardware name: LENOVO 20L8S2N800/20L8S2N800, BIOS N22ET35W (1.12 ) 04/09/2018
  Workqueue: kacpi_hotplug acpi_hotplug_work_fn
  RIP: 0010:igb_rd32+0x57/0x6a [igb]
  Code: 87 b8 fc ff ff 48 c7 47 08 00 00 00 00 48 c7 c6 33 42 9b c0 4c 89
  c7 e8 47 45 cd dc 89 ee 48 c7 c7 43 42 9b c0 e8 c1 94 71 dc <0f> 0b eb
  08 8b 00 ff c0 75 b0 eb c8 44 89 e0 5d 41 5c c3 0f 1f 44
  RSP: 0018:ffffba5801cf7c48 EFLAGS: 00010286
  RAX: 0000000000000000 RBX: ffff9e7956608840 RCX: 0000000000000007
  RDX: 0000000000000000 RSI: ffffba5801cf7b24 RDI: ffff9e795e3d6a00
  RBP: 0000000000000018 R08: 000000009dec4a01 R09: ffffffff9e61018f
  R10: 0000000000000000 R11: ffffba5801cf7ae5 R12: 00000000ffffffff
  R13: ffff9e7956608840 R14: ffff9e795a6f10b0 R15: 0000000000000000
  FS:  0000000000000000(0000) GS:ffff9e795e3c0000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000564317bc4088 CR3: 000000010e00a006 CR4: 00000000003606e0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  Call Trace:
   igb_release_hw_control+0x1a/0x30 [igb]
   igb_remove+0xc5/0x14b [igb]
   pci_device_remove+0x3b/0x93
   device_release_driver_internal+0xd7/0x17e
   pci_stop_bus_device+0x36/0x75
   pci_stop_bus_device+0x66/0x75
   pci_stop_bus_device+0x66/0x75
   pci_stop_and_remove_bus_device+0xf/0x19
   trim_stale_devices+0xc5/0x13a
   ? __pm_runtime_resume+0x6e/0x7b
   trim_stale_devices+0x103/0x13a
   ? __pm_runtime_resume+0x6e/0x7b
   trim_stale_devices+0x103/0x13a
   acpiphp_check_bridge+0xd8/0xf5
   acpiphp_hotplug_notify+0xf7/0x14b
   ? acpiphp_check_bridge+0xf5/0xf5
   acpi_device_hotplug+0x357/0x3b5
   acpi_hotplug_work_fn+0x1a/0x23
   process_one_work+0x1a7/0x296
   worker_thread+0x1a8/0x24c
   ? process_scheduled_works+0x2c/0x2c
   kthread+0xe9/0xee
   ? kthread_destroy_worker+0x41/0x41
   ret_from_fork+0x35/0x40
  ---[ end trace 252bf10352c63d22 ]---

Signed-off-by: Lyude Paul <lyude@redhat.com>
Fixes: 47e16692b26b ("igb/igc: warn when fatal read failure happens")
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Acked-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
4 years agotcp: increase tcp_max_syn_backlog max value
Eric Dumazet [Wed, 30 Oct 2019 17:05:46 +0000 (10:05 -0700)]
tcp: increase tcp_max_syn_backlog max value

tcp_max_syn_backlog default value depends on memory size
and TCP ehash size. Before this patch, the max value
was 2048 [1], which is considered too small nowadays.

Increase it to 4096 to match the recent SOMAXCONN change.

[1] This is with TCP ehash size being capped to 524288 buckets.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Yue Cao <ycao009@ucr.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: increase SOMAXCONN to 4096
Eric Dumazet [Wed, 30 Oct 2019 16:36:20 +0000 (09:36 -0700)]
net: increase SOMAXCONN to 4096

SOMAXCONN is /proc/sys/net/core/somaxconn default value.

It has been defined as 128 more than 20 years ago.

Since it caps the listen() backlog values, the very small value has
caused numerous problems over the years, and many people had
to raise it on their hosts after beeing hit by problems.

Google has been using 1024 for at least 15 years, and we increased
this to 4096 after TCP listener rework has been completed, more than
4 years ago. We got no complain of this change breaking any
legacy application.

Many applications indeed setup a TCP listener with listen(fd, -1);
meaning they let the system select the backlog.

Raising SOMAXCONN lowers chance of the port being unavailable under
even small SYNFLOOD attack, and reduces possibilities of side channel
vulnerabilities.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Yue Cao <ycao009@ucr.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'pm-cpufreq'
Rafael J. Wysocki [Thu, 31 Oct 2019 20:41:37 +0000 (21:41 +0100)]
Merge branch 'pm-cpufreq'

* pm-cpufreq:
  ACPI: processor: Add QoS requests for all CPUs

4 years agonetdevsim: Fix use-after-free during device dismantle
Ido Schimmel [Thu, 31 Oct 2019 16:20:30 +0000 (18:20 +0200)]
netdevsim: Fix use-after-free during device dismantle

Commit da58f90f11f5 ("netdevsim: Add devlink-trap support") added
delayed work to netdevsim that periodically iterates over the registered
netdevsim ports and reports various packet traps via devlink.

While the delayed work takes the 'port_list_lock' mutex to protect
against concurrent addition / deletion of ports, during device creation
/ dismantle ports are added / deleted without this lock, which can
result in a use-after-free [1].

Fix this by making sure that the ports list is always modified under the
lock.

[1]
[   59.205543] ==================================================================
[   59.207748] BUG: KASAN: use-after-free in nsim_dev_trap_report_work+0xa67/0xad0
[   59.210247] Read of size 8 at addr ffff8883cbdd3398 by task kworker/3:1/38
[   59.212584]
[   59.213148] CPU: 3 PID: 38 Comm: kworker/3:1 Not tainted 5.4.0-rc3-custom-16119-ge6abb5f0261e #2013
[   59.215896] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20180724_192412-buildhw-07.phx2.fedoraproject.org-1.fc29 04/01/2014
[   59.218384] Workqueue: events nsim_dev_trap_report_work
[   59.219428] Call Trace:
[   59.219924]  dump_stack+0xa9/0x10e
[   59.220623]  print_address_description.constprop.4+0x21/0x340
[   59.221976]  ? vprintk_func+0x66/0x240
[   59.222752]  __kasan_report.cold.8+0x78/0x91
[   59.223602]  ? nsim_dev_trap_report_work+0xa67/0xad0
[   59.224603]  kasan_report+0xe/0x20
[   59.225296]  nsim_dev_trap_report_work+0xa67/0xad0
[   59.226435]  ? rcu_read_lock_sched_held+0xaf/0xe0
[   59.227512]  ? trace_event_raw_event_rcu_quiescent_state_report+0x360/0x360
[   59.228851]  process_one_work+0x98f/0x1760
[   59.229684]  ? pwq_dec_nr_in_flight+0x330/0x330
[   59.230656]  worker_thread+0x91/0xc40
[   59.231587]  ? process_one_work+0x1760/0x1760
[   59.232451]  kthread+0x34a/0x410
[   59.233104]  ? __kthread_queue_delayed_work+0x240/0x240
[   59.234141]  ret_from_fork+0x3a/0x50
[   59.234982]
[   59.235371] Allocated by task 187:
[   59.236189]  save_stack+0x19/0x80
[   59.236853]  __kasan_kmalloc.constprop.5+0xc1/0xd0
[   59.237822]  kmem_cache_alloc_trace+0x14c/0x380
[   59.238769]  __nsim_dev_port_add+0xaf/0x5c0
[   59.239627]  nsim_dev_probe+0x4fc/0x1140
[   59.240550]  really_probe+0x264/0xc00
[   59.241418]  driver_probe_device+0x208/0x2e0
[   59.242255]  __device_attach_driver+0x215/0x2d0
[   59.243150]  bus_for_each_drv+0x154/0x1d0
[   59.243944]  __device_attach+0x1ba/0x2b0
[   59.244923]  bus_probe_device+0x1dd/0x290
[   59.245805]  device_add+0xbac/0x1550
[   59.246528]  new_device_store+0x1f4/0x400
[   59.247306]  bus_attr_store+0x7b/0xa0
[   59.248047]  sysfs_kf_write+0x10f/0x170
[   59.248941]  kernfs_fop_write+0x283/0x430
[   59.249843]  __vfs_write+0x81/0x100
[   59.250546]  vfs_write+0x1ce/0x510
[   59.251190]  ksys_write+0x104/0x200
[   59.251873]  do_syscall_64+0xa4/0x4e0
[   59.252642]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   59.253837]
[   59.254203] Freed by task 187:
[   59.254811]  save_stack+0x19/0x80
[   59.255463]  __kasan_slab_free+0x125/0x170
[   59.256265]  kfree+0x100/0x440
[   59.256870]  nsim_dev_remove+0x98/0x100
[   59.257651]  nsim_bus_remove+0x16/0x20
[   59.258382]  device_release_driver_internal+0x20b/0x4d0
[   59.259588]  bus_remove_device+0x2e9/0x5a0
[   59.260551]  device_del+0x410/0xad0
[   59.263777]  device_unregister+0x26/0xc0
[   59.264616]  nsim_bus_dev_del+0x16/0x60
[   59.265381]  del_device_store+0x2d6/0x3c0
[   59.266295]  bus_attr_store+0x7b/0xa0
[   59.267192]  sysfs_kf_write+0x10f/0x170
[   59.267960]  kernfs_fop_write+0x283/0x430
[   59.268800]  __vfs_write+0x81/0x100
[   59.269551]  vfs_write+0x1ce/0x510
[   59.270252]  ksys_write+0x104/0x200
[   59.270910]  do_syscall_64+0xa4/0x4e0
[   59.271680]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   59.272812]
[   59.273211] The buggy address belongs to the object at ffff8883cbdd3200
[   59.273211]  which belongs to the cache kmalloc-512 of size 512
[   59.275838] The buggy address is located 408 bytes inside of
[   59.275838]  512-byte region [ffff8883cbdd3200ffff8883cbdd3400)
[   59.278151] The buggy address belongs to the page:
[   59.279215] page:ffffea000f2f7400 refcount:1 mapcount:0 mapping:ffff8883ecc0ce00 index:0x0 compound_mapcount: 0
[   59.281449] flags: 0x200000000010200(slab|head)
[   59.282356] raw: 0200000000010200 ffffea000f2f3a08 ffffea000f2fd608 ffff8883ecc0ce00
[   59.283949] raw: 0000000000000000 0000000000150015 00000001ffffffff 0000000000000000
[   59.285608] page dumped because: kasan: bad access detected
[   59.286981]
[   59.287337] Memory state around the buggy address:
[   59.288310]  ffff8883cbdd3280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   59.289763]  ffff8883cbdd3300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   59.291452] >ffff8883cbdd3380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   59.292945]                             ^
[   59.293815]  ffff8883cbdd3400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   59.295220]  ffff8883cbdd3480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   59.296872] ==================================================================

Fixes: da58f90f11f5 ("netdevsim: Add devlink-trap support")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: syzbot+9ed8f68ab30761f3678e@syzkaller.appspotmail.com
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agorxrpc: Fix handling of last subpacket of jumbo packet
David Howells [Thu, 31 Oct 2019 12:13:46 +0000 (12:13 +0000)]
rxrpc: Fix handling of last subpacket of jumbo packet

When rxrpc_recvmsg_data() sets the return value to 1 because it's drained
all the data for the last packet, it checks the last-packet flag on the
whole packet - but this is wrong, since the last-packet flag is only set on
the final subpacket of the last jumbo packet.  This means that a call that
receives its last packet in a jumbo packet won't complete properly.

Fix this by having rxrpc_locate_data() determine the last-packet state of
the subpacket it's looking at and passing that back to the caller rather
than having the caller look in the packet header.  The caller then needs to
cache this in the rxrpc_call struct as rxrpc_locate_data() isn't then
called again for this packet.

Fixes: 248f219cb8bc ("rxrpc: Rewrite the data and ack handling code")
Fixes: e2de6c404898 ("rxrpc: Use info in skbuff instead of reparsing a jumbo packet")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge tag 'mac80211-for-net-2019-10-31' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Thu, 31 Oct 2019 18:43:36 +0000 (11:43 -0700)]
Merge tag 'mac80211-for-net-2019-10-31' of git://git./linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Just two fixes:
 * HT operation is not allowed on channel 14 (Japan only)
 * netlink policy for nexthop attribute was wrong
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agousb: dwc3: gadget: fix race when disabling ep with cancelled xfers
Felipe Balbi [Thu, 31 Oct 2019 09:07:13 +0000 (11:07 +0200)]
usb: dwc3: gadget: fix race when disabling ep with cancelled xfers

When disabling an endpoint which has cancelled requests, we should
make sure to giveback requests that are currently pending in the
cancelled list, otherwise we may fall into a situation where command
completion interrupt fires after endpoint has been disabled, therefore
causing a splat.

Fixes: fec9095bdef4 "usb: dwc3: gadget: remove wait_end_transfer"
Reported-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Link: https://lore.kernel.org/r/20191031090713.1452818-1-felipe.balbi@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoiocost: don't nest spin_lock_irq in ioc_weight_write()
Dan Carpenter [Thu, 31 Oct 2019 10:53:41 +0000 (13:53 +0300)]
iocost: don't nest spin_lock_irq in ioc_weight_write()

This code causes a static analysis warning:

    block/blk-iocost.c:2113 ioc_weight_write() error: double lock 'irq'

We disable IRQs in blkg_conf_prep() and re-enable them in
blkg_conf_finish().  IRQ disable/enable should not be nested because
that means the IRQs will be enabled at the first unlock instead of the
second one.

Fixes: 7caa47151ab2 ("blkcg: implement blk-iocost")
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agos390/idle: fix cpu idle time calculation
Heiko Carstens [Mon, 28 Oct 2019 10:03:27 +0000 (11:03 +0100)]
s390/idle: fix cpu idle time calculation

The idle time reported in /proc/stat sometimes incorrectly contains
huge values on s390. This is caused by a bug in arch_cpu_idle_time().

The kernel tries to figure out when a different cpu entered idle by
accessing its per-cpu data structure. There is an ordering problem: if
the remote cpu has an idle_enter value which is not zero, and an
idle_exit value which is zero, it is assumed it is idle since
"now". The "now" timestamp however is taken before the idle_enter
value is read.

Which in turn means that "now" can be smaller than idle_enter of the
remote cpu. Unconditionally subtracting idle_enter from "now" can thus
lead to a negative value (aka large unsigned value).

Fix this by moving the get_tod_clock() invocation out of the
loop. While at it also make the code a bit more readable.

A similar bug also exists for show_idle_time(). Fix this is as well.

Cc: <stable@vger.kernel.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
4 years agos390/unwind: fix mixing regs and sp
Ilya Leoshkevich [Wed, 2 Oct 2019 11:29:57 +0000 (13:29 +0200)]
s390/unwind: fix mixing regs and sp

unwind_for_each_frame stops after the first frame if regs->gprs[15] <=
sp.

The reason is that in case regs are specified, the first frame should be
regs->psw.addr and the second frame should be sp->gprs[8]. However,
currently the second frame is regs->gprs[15], which confuses
outside_of_stack().

Fix by introducing a flag to distinguish this special case from
unwinding the interrupt handler, for which the current behavior is
appropriate.

Fixes: 78c98f907413 ("s390/unwind: introduce stack unwind API")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: stable@vger.kernel.org # v5.2+
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
4 years agos390/cmm: fix information leak in cmm_timeout_handler()
Yihui ZENG [Fri, 25 Oct 2019 09:31:48 +0000 (12:31 +0300)]
s390/cmm: fix information leak in cmm_timeout_handler()

The problem is that we were putting the NUL terminator too far:

buf[sizeof(buf) - 1] = '\0';

If the user input isn't NUL terminated and they haven't initialized the
whole buffer then it leads to an info leak.  The NUL terminator should
be:

buf[len - 1] = '\0';

Signed-off-by: Yihui Zeng <yzeng56@asu.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
[heiko.carstens@de.ibm.com: keep semantics of how *lenp and *ppos are handled]
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
4 years agoarm64: cpufeature: Enable Qualcomm Falkor errata 1009 for Kryo
Bjorn Andersson [Tue, 29 Oct 2019 23:27:38 +0000 (16:27 -0700)]
arm64: cpufeature: Enable Qualcomm Falkor errata 1009 for Kryo

The Kryo cores share errata 1009 with Falkor, so add their model
definitions and enable it for them as well.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[will: Update entry in silicon-errata.rst]
Signed-off-by: Will Deacon <will@kernel.org>