platform/kernel/linux-rpi.git
17 months agoALSA: seq: Add UMP group filter
Takashi Iwai [Tue, 23 May 2023 07:53:57 +0000 (09:53 +0200)]
ALSA: seq: Add UMP group filter

Add a new filter bitmap for UMP groups for reducing the unnecessary
read/write when the client is connected to UMP EP seq port.

The new group_filter field contains the bitmap for the groups, i.e.
when the bit is set, the corresponding group is filtered out and
the messages to that group won't be delivered.

The filter bitmap consists of each bit of 1-based UMP Group number.
The bit 0 is reserved for the future use.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-37-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Print UMP Endpoint and Block information in proc outputs
Takashi Iwai [Tue, 23 May 2023 07:53:56 +0000 (09:53 +0200)]
ALSA: seq: Print UMP Endpoint and Block information in proc outputs

This patch enhances the /proc/asound/seq/clients output to show a few
more information about the assigned UMP Endpoint and Blocks.

The "Groups" are shown in 1-based group number to align with the
sequencer client name and port number.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-36-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Add ioctls for client UMP info query and setup
Takashi Iwai [Tue, 23 May 2023 07:53:55 +0000 (09:53 +0200)]
ALSA: seq: Add ioctls for client UMP info query and setup

Add new ioctls for sequencer clients to query and set the UMP endpoint
and block information.

As a sequencer client corresponds to a UMP Endpoint, one UMP Endpoint
information can be assigned at most to a single sequencer client while
multiple UMP block infos can be assigned by passing the type with the
offset of block id (i.e. type = block_id + 1).

For the kernel client, only SNDRV_SEQ_IOCTL_GET_CLIENT_UMP_INFO is
allowed.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-35-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: ump: Create UMP Endpoint port for broadcast
Takashi Iwai [Tue, 23 May 2023 07:53:54 +0000 (09:53 +0200)]
ALSA: seq: ump: Create UMP Endpoint port for broadcast

Create a sequencer port for broadcasting the all group inputs at the
port number 0.  This corresponds to a UMP Endpoint connection;
application can read all UMP events from this port no matter which
group the UMP packet belongs to.

Unlike seq ports for other UMP groups, a UMP Endpoint port has no
SND_SEQ_PORT_TYPE_MIDI_GENERIC bit, so that it won't be treated as a
normal MIDI 1.0 device from legacy applications.

The port is named as "MIDI 2.0" to align with representations on other
operation systems.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-34-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Bind UMP device
Takashi Iwai [Tue, 23 May 2023 07:53:53 +0000 (09:53 +0200)]
ALSA: seq: Bind UMP device

This patch introduces a new ALSA sequencer client for the kernel UMP
object, snd-seq-ump-client.  It's a UMP version of snd-seq-midi
driver, while this driver creates a sequencer client per UMP endpoint
which contains (fixed) 16 ports.

The UMP rawmidi device is opened in APPEND mode for output, so that
multiple sequencer clients can share the same UMP endpoint, as well as
the legacy UMP rawmidi devices that are opened in APPEND mode, too.
For input, on the other hand, the incoming data is processed on the
fly in the dedicated hook, hence it doesn't open a rawmidi device.

The UMP packet group is updated upon delivery depending on the target
sequencer port (which corresponds to the actual UMP group).

Each sequencer port sets a new port type bit,
SNDRV_SEQ_PORT_TYPE_MIDI_UMP, in addition to the other standard
types for MIDI.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-33-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Allow suppressing UMP conversions
Takashi Iwai [Tue, 23 May 2023 07:53:52 +0000 (09:53 +0200)]
ALSA: seq: Allow suppressing UMP conversions

A sequencer client like seq_dummy rather doesn't want to convert UMP
events but receives / sends as is.  Add a new event filter flag to
suppress the automatic UMP conversion and applies accordingly.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-32-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Automatic conversion of UMP events
Takashi Iwai [Tue, 23 May 2023 07:53:51 +0000 (09:53 +0200)]
ALSA: seq: Automatic conversion of UMP events

This patch enables the automatic conversion of UMP events from/to the
legacy ALSA sequencer MIDI events.  Also, as UMP itself has two
different modes (MIDI 1.0 and MIDI 2.0), yet another converters
between them are needed, too.  Namely, we have conversions between the
legacy and UMP like:
  - seq legacy event -> seq UMP MIDI 1.0 event
  - seq legacy event -> seq UMP MIDI 2.0 event
  - seq UMP MIDI 1.0 event -> seq legacy event
  - seq UMP MIDI 2.0 event -> seq legacy event

and the conversions between UMP MIDI 1.0 and 2.0 clients like:
  - seq UMP MIDI 1.0 event -> seq UMP MIDI 2.0 event
  - seq UMP MIDI 2.0 event -> seq UMP MIDI 1.0 event

The translation is per best-effort; some MIDI 2.0 specific events are
ignored when translated to MIDI 1.0.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-31-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Add UMP group number to snd_seq_port_info
Takashi Iwai [Tue, 23 May 2023 07:53:50 +0000 (09:53 +0200)]
ALSA: seq: Add UMP group number to snd_seq_port_info

Add yet more new filed "ump_group" to snd_seq_port_info for specifying
the associated UMP Group number for each sequencer port.  This will be
referred in the upcoming automatic UMP conversion in sequencer core.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-30-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Add port direction to snd_seq_port_info
Takashi Iwai [Tue, 23 May 2023 07:53:49 +0000 (09:53 +0200)]
ALSA: seq: Add port direction to snd_seq_port_info

Add a new field "direction" to snd_seq_port_info for allowing a client
to tell the expected direction of the port access.  A port might still
allow subscriptions for read/write (e.g. for MIDI-CI) even if the
primary usage of the port is a single direction (either input or
output only).  This new "direction" field can help to indicate such
cases.

When the direction is unspecified at creating a port and the port has
either read or write capability, the corresponding direction bits are
set automatically as default.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-29-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Support MIDI 2.0 UMP Endpoint port
Takashi Iwai [Tue, 23 May 2023 07:53:48 +0000 (09:53 +0200)]
ALSA: seq: Support MIDI 2.0 UMP Endpoint port

This is an extension to ALSA sequencer infrastructure to support the
MIDI 2.0 UMP Endpoint port.  It's a "catch-all" port that is supposed
to be present for each UMP Endpoint.  When this port is read via
subscription, it sends any events from all ports (UMP Groups) found in
the same client.

A UMP Endpoint port can be created with the new capability bit
SNDRV_SEQ_PORT_CAP_UMP_ENDPOINT.  Although the port assignment isn't
strictly defined, it should be the port number 0.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-28-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Add port inactive flag
Takashi Iwai [Tue, 23 May 2023 07:53:47 +0000 (09:53 +0200)]
ALSA: seq: Add port inactive flag

This extends the ALSA sequencer port capability bit to indicate the
"inactive" flag.  When this flag is set, the port is essentially
invisible, and doesn't appear in the port query ioctls, while the
direct access and the connection to this port are still allowed.  The
active/inactive state can be flipped dynamically, so that it can be
visible at any time later.

This feature is introduced basically for UMP; some UMP Groups in a UMP
Block may be unassigned, hence those are practically invisible.  On
ALSA sequencer, the corresponding sequencer ports will get this new
"inactive" flag to indicate the invisible state.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-27-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Add UMP support
Takashi Iwai [Tue, 23 May 2023 07:53:46 +0000 (09:53 +0200)]
ALSA: seq: Add UMP support

Starting from this commit, we add the basic support of UMP (Universal
MIDI Packet) events on ALSA sequencer infrastructure.  The biggest
change here is that, for transferring UMP packets that are up to 128
bits, we extend the data payload of ALSA sequencer event record when
the client is declared to support for the new UMP events.

A new event flag bit, SNDRV_SEQ_EVENT_UMP, is defined and it shall be
set for the UMP packet events that have the larger payload of 128
bits, defined as struct snd_seq_ump_event.

For controlling the UMP feature enablement in kernel, a new Kconfig,
CONFIG_SND_SEQ_UMP is introduced.  The extended event for UMP is
available only when this Kconfig item is set.  Similarly, the size of
the internal snd_seq_event_cell also increases (in 4 bytes) when the
Kconfig item is set.  (But the size increase is effective only for
32bit architectures; 64bit archs already have padding there.)
Overall, when CONFIG_SND_SEQ_UMP isn't set, there is no change in the
event and cell, keeping the old sizes.

For applications that want to access the UMP packets, first of all, a
sequencer client has to declare the user-protocol to match with the
latest one via the new SNDRV_SEQ_IOCTL_USER_PVERSION; otherwise it's
treated as if a legacy client without UMP support.

Then the client can switch to the new UMP mode (MIDI 1.0 or MIDI 2.0)
with a new field, midi_version, in snd_seq_client_info.  When switched
to UMP mode (midi_version = 1 or 2), the client can write the UMP
events with SNDRV_SEQ_EVENT_UMP flag.  For reads, the alignment size
is changed from snd_seq_event (28 bytes) to snd_seq_ump_event (32
bytes).  When a UMP sequencer event is delivered to a legacy sequencer
client, it's ignored or handled as an error.

Conceptually, ALSA sequencer client and port correspond to the UMP
Endpoint and Group, respectively; each client may have multiple ports
and each port has the fixed number (16) of channels, total up to 256
channels.

As of this commit, ALSA sequencer core just sends and receives the UMP
events as-is from/to clients.  The automatic conversions between the
legacy events and the new UMP events will be implemented in a later
patch.

Along with this commit, bump the sequencer protocol version to 1.0.3.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-26-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Introduce SNDRV_SEQ_IOCTL_USER_PVERSION ioctl
Takashi Iwai [Tue, 23 May 2023 07:53:45 +0000 (09:53 +0200)]
ALSA: seq: Introduce SNDRV_SEQ_IOCTL_USER_PVERSION ioctl

For the future extension of ALSA sequencer ABI, introduce a new ioctl
SNDRV_SEQ_IOCTL_USER_PVERSION.  This is similar like the ioctls used
in PCM and other interfaces, for an application to specify its
supporting ABI version.

The use of this ioctl will be mandatory for the upcoming UMP support.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-25-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Prohibit creating ports with special numbers
Takashi Iwai [Tue, 23 May 2023 07:53:44 +0000 (09:53 +0200)]
ALSA: seq: Prohibit creating ports with special numbers

Some port numbers are special, such as 254 for subscribers and 255 for
broadcast.  Return error if application tries to create such a port.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-24-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Check validity before creating a port object
Takashi Iwai [Tue, 23 May 2023 07:53:43 +0000 (09:53 +0200)]
ALSA: seq: Check validity before creating a port object

The client type and the port info validity check should be done before
actually creating a port, instead of unnecessary create-and-scratch.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-23-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Check the conflicting port at port creation
Takashi Iwai [Tue, 23 May 2023 07:53:42 +0000 (09:53 +0200)]
ALSA: seq: Check the conflicting port at port creation

We didn't check if a port with the given port number has been already
present at creating a new port.  Check it and return -EBUSY properly
if the port number conflicts.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-22-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Drop dead code for the old broadcast support
Takashi Iwai [Tue, 23 May 2023 07:53:41 +0000 (09:53 +0200)]
ALSA: seq: Drop dead code for the old broadcast support

The broadcast and multicast supports have been never enabled.
Let's drop the dead code.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-21-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Treat snd_seq_client object directly in client drivers
Takashi Iwai [Tue, 23 May 2023 07:53:40 +0000 (09:53 +0200)]
ALSA: seq: Treat snd_seq_client object directly in client drivers

Introduce the new helpers, snd_seq_kernel_client_get() and _put() for
kernel client drivers to treat the snd_seq_client more directly.
This allows us to reduce the exported symbols and APIs at each time we
need to access some field in future.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-20-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Add snd_seq_expand_var_event_at() helper
Takashi Iwai [Tue, 23 May 2023 07:53:39 +0000 (09:53 +0200)]
ALSA: seq: Add snd_seq_expand_var_event_at() helper

Create a new variant of snd_seq_expand_var_event() for expanding the
data starting from the given byte offset.  It'll be used by the new
UMP sequencer code later.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-19-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: seq: Clear padded bytes at expanding events
Takashi Iwai [Tue, 23 May 2023 07:53:38 +0000 (09:53 +0200)]
ALSA: seq: Clear padded bytes at expanding events

There can be a small memory hole that may not be cleared at expanding
an event with the variable length type.  Make sure to clear it.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-18-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: usb-audio: Inform inconsistent protocols in GTBs
Takashi Iwai [Tue, 23 May 2023 07:53:37 +0000 (09:53 +0200)]
ALSA: usb-audio: Inform inconsistent protocols in GTBs

When parsing Group Terminal Blocks, we overwrote the preferred
protocol and the protocol capabilities silently from the last parsed
GTB.  This patch adds the information print indicating the unexpected
overrides instead of silent action.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-17-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: usb-audio: Enable the legacy raw MIDI support
Takashi Iwai [Tue, 23 May 2023 07:53:36 +0000 (09:53 +0200)]
ALSA: usb-audio: Enable the legacy raw MIDI support

Attach the legacy rawmidi devices when enabled in Kconfig accordingly.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-16-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: ump: Add legacy raw MIDI support
Takashi Iwai [Tue, 23 May 2023 07:53:35 +0000 (09:53 +0200)]
ALSA: ump: Add legacy raw MIDI support

This patch extends the UMP core code to support the legacy MIDI 1.0
rawmidi devices.  When the new kconfig CONFIG_SND_UMP_LEGACY_RAWMIDI
is set, the UMP core allows to attach an additional rawmidi device for
each UMP Endpoint.  The rawmidi device contains 16 substreams where
each substream corresponds to a UMP Group belonging to the EP.  The
device reads/writes the legacy MIDI 1.0 byte streams and translates
from/to UMP packets.

The legacy rawmidi devices are exclusive with the UMP rawmidi devices,
hence both of them can't be opened at the same time unless the UMP
rawmidi is opened in APPEND mode.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-15-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: ump: Redirect rawmidi substream access via own helpers
Takashi Iwai [Tue, 23 May 2023 07:53:34 +0000 (09:53 +0200)]
ALSA: ump: Redirect rawmidi substream access via own helpers

This is a code refactoring for abstracting the rawmidi access to the
UMP's own helpers.  It's a preliminary work for the later code
refactoring of the UMP layer.

Until now, we access to the rawmidi substream directly from the
driver via rawmidi access helpers, but after this change, the driver
is supposed to access via the newly introduced snd_ump_ops and
receive/transmit via snd_ump_receive() and snd_ump_transmit() helpers.
As of this commit, those are merely wrappers for the rawmidi
substream, and no much function change is seen here.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-14-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: usb-audio: Create UMP blocks from USB MIDI GTBs
Takashi Iwai [Tue, 23 May 2023 07:53:33 +0000 (09:53 +0200)]
ALSA: usb-audio: Create UMP blocks from USB MIDI GTBs

USB MIDI spec defines the Group Terminal Blocks (GTB) that associate
multiple UMP Groups.  Those correspond to snd_ump_block entities in
ALSA UMP abstraction, and now we create those UMP Block objects for
each UMP Endpoint from the parsed GTB information.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-13-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: usb-audio: Trim superfluous "MIDI" suffix from UMP EP name
Takashi Iwai [Tue, 23 May 2023 07:53:32 +0000 (09:53 +0200)]
ALSA: usb-audio: Trim superfluous "MIDI" suffix from UMP EP name

A single USB audio device may have multiple interfaces for different
purposes (e.g. audio, MIDI and HID), where the iInterface descriptor
of each interface may contain an own suffix, e.g. "MIDI" for a MIDI
interface.  as such a suffix is superfluous as a rawmidi and UMP
Endpoint name, this patch trims the superfluous "MIDI" suffix from the
name string.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-12-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: usb-audio: Get UMP EP name string from USB interface
Takashi Iwai [Tue, 23 May 2023 07:53:31 +0000 (09:53 +0200)]
ALSA: usb-audio: Get UMP EP name string from USB interface

USB descriptor may provide a nicer name for USB interface, and we may
take it as the UMP Endpoint name.  The UMP EP name is copied as the
rawmidi name, too.

Also, fill the UMP block product_id field from the iSerialNumber
string of the USB device descriptor as a recommended unique id, too.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-11-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: usb-audio: USB MIDI 2.0 UMP support
Takashi Iwai [Tue, 23 May 2023 07:53:30 +0000 (09:53 +0200)]
ALSA: usb-audio: USB MIDI 2.0 UMP support

This patch provides a basic support for USB MIDI 2.0.  As of this
patch, the driver creates a UMP device per MIDI I/O endpoints, which
serves as a dumb terminal to read/write UMP streams.

A new Kconfig CONFIG_SND_USB_AUDIO_MIDI_V2 manages whether to enable
or disable the MIDI 2.0 support.  Also, the driver provides a new
module option, midi2_enable, to allow disabling the MIDI 2.0 at
runtime, too.  When MIDI 2.0 support is disabled, the driver tries to
fall back to the already existing MIDI 1.0 device (each MIDI 2.0
device is supposed to provide the MIDI 1.0 interface at the altset
0).

For now, the driver doesn't manage any MIDI-CI or other protocol
setups by itself, but relies on the default protocol given via the
group terminal block descriptors.

The MIDI 1.0 messages on MIDI 2.0 device will be automatically
converted in ALSA sequencer in a later patch.  As of this commit, the
driver accepts merely the rawmidi UMP accesses.

The driver builds up the topology in the following way:
- Create an object for each MIDI endpoint belonging to the USB
  interface
- Find MIDI EP "pairs" that share the same GTB;
  note that MIDI EP is unidirectional, while UMP is (normally)
  bidirectional, so two MIDI EPs can form a single UMP EP
- A UMP endpoint object is created for each I/O pair
- For remaining "solo" MIDI EPs, create unidirectional UMP EPs
- Finally, parse GTBs and fill the protocol bits on each UMP

So the driver may support multiple UMP Endpoints in theory, although
most devices are supposed to have a single UMP EP that can contain up
to 16 groups -- which should be large enough.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: usb-audio: Define USB MIDI 2.0 specs
Takashi Iwai [Tue, 23 May 2023 07:53:29 +0000 (09:53 +0200)]
ALSA: usb-audio: Define USB MIDI 2.0 specs

Define new structs and constants from USB MIDI 2.0 specification,
to be used in the upcoming MIDI 2.0 support in USB-audio driver.

A new class-specific endpoint descriptor and group terminal block
descriptors are defined.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: usb-audio: Manage number of rawmidis globally
Takashi Iwai [Tue, 23 May 2023 07:53:28 +0000 (09:53 +0200)]
ALSA: usb-audio: Manage number of rawmidis globally

We're going to create rawmidi objects for MIDI 2.0 in a different code
from the current code for USB-MIDI 1.0.  As a preliminary work, this
patch adds the number of rawmidi objects to keep globally in a
USB-audio card instance, so that it can be referred from both MIDI 1.0
and 2.0 code.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: ump: Additional proc output
Takashi Iwai [Tue, 23 May 2023 07:53:27 +0000 (09:53 +0200)]
ALSA: ump: Additional proc output

UMP devices may have more interesting information than the traditional
rawmidi.  Extend the rawmidi_global_ops to allow the optional proc
info output and show some more bits in the proc file for UMP.

Note that the "Groups" field shows the first and the last UMP Groups,
and both numbers are 1-based (i.e. the first group is 1).

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: ump: Add ioctls to inquiry UMP EP and Block info via control API
Takashi Iwai [Tue, 23 May 2023 07:53:26 +0000 (09:53 +0200)]
ALSA: ump: Add ioctls to inquiry UMP EP and Block info via control API

It'd be convenient to have ioctls to inquiry the UMP Endpoint and UMP
Block information directly via the control API without opening the
rawmidi interface, just like SNDRV_CTL_IOCTL_RAWMIDI_INFO.

This patch extends the rawmidi ioctl handler to support those; new
ioctls, SNDRV_CTL_IOCTL_UMP_ENDPOINT_INFO and
SNDRV_CTL_IOCTL_UMP_BLOCK_INFO, return the snd_ump_endpoint and
snd_ump_block data that is specified by the device field,
respectively.

Suggested-by: Jaroslav Kysela <perex@perex.cz>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: rawmidi: Skip UMP devices at SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE
Takashi Iwai [Tue, 23 May 2023 07:53:25 +0000 (09:53 +0200)]
ALSA: rawmidi: Skip UMP devices at SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE

Applications may look for rawmidi devices with the ioctl
SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE.  Returning a UMP device from this
ioctl may confuse the existing applications that support only the
legacy rawmidi.

This patch changes the code to skip the UMP devices from the lookup
for avoiding the confusion, and introduces a new ioctl to look for the
UMP devices instead.

Along with this change, bump the CTL protocol version to 2.0.9.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: rawmidi: UMP support
Takashi Iwai [Tue, 23 May 2023 07:53:24 +0000 (09:53 +0200)]
ALSA: rawmidi: UMP support

This patch adds the support helpers for UMP (Universal MIDI Packet) in
ALSA core.

The basic design is that a rawmidi instance is assigned to each UMP
Endpoint.  A UMP Endpoint provides a UMP stream, typically
bidirectional (but can be also uni-directional, too), which may hold
up to 16 UMP Groups, where each UMP (input/output) Group corresponds
to the traditional MIDI I/O Endpoint.

Additionally, the ALSA UMP abstraction provides the multiple UMP
Blocks that can be assigned to each UMP Endpoint.  A UMP Block is a
metadata to hold the UMP Group clusters, and can represent the
functions assigned to each UMP Group.  A typical implementation of UMP
Block is the Group Terminal Blocks of USB MIDI 2.0 specification.

For distinguishing from the legacy byte-stream MIDI device, a new
device "umpC*D*" will be created, instead of the standard (MIDI 1.0)
devices "midiC*D*".  The UMP instance can be identified by the new
rawmidi info bit SNDRV_RAWMIDI_INFO_UMP, too.

A UMP rawmidi device reads/writes only in 4-bytes words alignment,
stored in CPU native endianness.

The transmit and receive functions take care of the input/out data
alignment, and may return zero or aligned size, and the params ioctl
may return -EINVAL when the given input/output buffer size isn't
aligned.

A few new UMP-specific ioctls are added for obtaining the new UMP
endpoint and block information.

As of this commit, no ALSA sequencer instance is attached to UMP
devices yet.  They will be supported by later patches.

Along with those changes, the protocol version for rawmidi is bumped
to 2.0.3.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: rawmidi: Add ioctl callback to snd_rawmidi_global_ops
Takashi Iwai [Tue, 23 May 2023 07:53:23 +0000 (09:53 +0200)]
ALSA: rawmidi: Add ioctl callback to snd_rawmidi_global_ops

A new callback, ioctl, is added to snd_rawmidi_global_ops for allowing
the driver to deal with the own ioctls.  This is another preparation
patch for the upcoming UMP support.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
17 months agoALSA: rawmidi: Pass rawmidi directly to snd_rawmidi_kernel_open()
Takashi Iwai [Tue, 23 May 2023 07:53:22 +0000 (09:53 +0200)]
ALSA: rawmidi: Pass rawmidi directly to snd_rawmidi_kernel_open()

snd_rawmidi_kernel_open() is used only internally from ALSA sequencer,
so far, and parsing the card / device matching table at each open is
redundant, as each sequencer client already gets the rawmidi object
beforehand.

This patch optimizes the path by passing the rawmidi object directly
at snd_rawmidi_kernel_open().  This is also a preparation for the
upcoming UMP rawmidi I/O support.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
18 months agoLinux 6.4-rc2
Linus Torvalds [Sun, 14 May 2023 19:51:40 +0000 (12:51 -0700)]
Linux 6.4-rc2

18 months agoMerge tag 'cxl-fixes-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Linus Torvalds [Sun, 14 May 2023 19:32:34 +0000 (12:32 -0700)]
Merge tag 'cxl-fixes-6.4-rc2' of git://git./linux/kernel/git/cxl/cxl

Pull compute express link fixes from Dan Williams:

 - Fix a compilation issue with DEFINE_STATIC_SRCU() in the unit tests

 - Fix leaking kernel memory to a root-only sysfs attribute

* tag 'cxl-fixes-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl: Add missing return to cdat read error path
  tools/testing/cxl: Use DEFINE_STATIC_SRCU()

18 months agoMerge tag 'parisc-for-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Sun, 14 May 2023 16:54:38 +0000 (09:54 -0700)]
Merge tag 'parisc-for-6.4-2' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc architecture fixes from Helge Deller:

 - Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag

 - Include reboot.h to avoid gcc-12 compiler warning

* tag 'parisc-for-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag
  parisc: kexec: include reboot.h

18 months agoMerge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Linus Torvalds [Sun, 14 May 2023 16:17:32 +0000 (09:17 -0700)]
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:

 - fix unwinder for uleb128 case

 - fix kernel-doc warnings for HP Jornada 7xx

 - fix unbalanced stack on vfp success path

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 9297/1: vfp: avoid unbalanced stack on 'success' return path
  ARM: 9296/1: HP Jornada 7XX: fix kernel-doc warnings
  ARM: 9295/1: unwind:fix unwind abort for uleb128 case

18 months agoMerge tag 'locking_urgent_for_v6.4_rc2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 14 May 2023 15:00:46 +0000 (08:00 -0700)]
Merge tag 'locking_urgent_for_v6.4_rc2' of git://git./linux/kernel/git/tip/tip

Pull locking fix from Borislav Petkov:

 - Make sure __down_read_common() is always inlined so that the callers'
   names land in traceevents output and thus the blocked function can be
   identified

* tag 'locking_urgent_for_v6.4_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/rwsem: Add __always_inline annotation to __down_read_common() and inlined callers

18 months agoMerge tag 'perf_urgent_for_v6.4_rc2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 14 May 2023 14:56:51 +0000 (07:56 -0700)]
Merge tag 'perf_urgent_for_v6.4_rc2' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Borislav Petkov:

 - Make sure the PEBS buffer is flushed before reprogramming the
   hardware so that the correct record sizes are used

 - Update the sample size for AMD BRS events

 - Fix a confusion with using the same on-stack struct with different
   events in the event processing path

* tag 'perf_urgent_for_v6.4_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/ds: Flush PEBS DS when changing PEBS_DATA_CFG
  perf/x86: Fix missing sample size update on AMD BRS
  perf/core: Fix perf_sample_data not properly initialized for different swevents in perf_tp_event()

18 months agoMerge tag 'sched_urgent_for_v6.4_rc2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 14 May 2023 14:50:34 +0000 (07:50 -0700)]
Merge tag 'sched_urgent_for_v6.4_rc2' of git://git./linux/kernel/git/tip/tip

Pull scheduler fix from Borislav Petkov:

 - Fix a couple of kernel-doc warnings

* tag 'sched_urgent_for_v6.4_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: fix cid_lock kernel-doc warnings

18 months agoMerge tag 'x86_urgent_for_v6.4_rc2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 14 May 2023 14:44:48 +0000 (07:44 -0700)]
Merge tag 'x86_urgent_for_v6.4_rc2' of git://git./linux/kernel/git/tip/tip

Pull x86 fix from Borislav Petkov:

 - Add the required PCI IDs so that the generic SMN accesses provided by
   amd_nb.c work for drivers which switch to them. Add a PCI device ID
   to k10temp's table so that latter is loaded on such systems too

* tag 'x86_urgent_for_v6.4_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  hwmon: (k10temp) Add PCI ID for family 19, model 78h
  x86/amd_nb: Add PCI ID for family 19h model 78h

18 months agoMerge tag 'timers_urgent_for_v6.4_rc2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 14 May 2023 14:39:15 +0000 (07:39 -0700)]
Merge tag 'timers_urgent_for_v6.4_rc2' of git://git./linux/kernel/git/tip/tip

Pull timer fix from Borislav Petkov:

 - Prevent CPU state corruption when an active clockevent broadcast
   device is replaced while the system is already in oneshot mode

* tag 'timers_urgent_for_v6.4_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick/broadcast: Make broadcast device replacement work correctly

18 months agoMerge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 14 May 2023 00:45:39 +0000 (17:45 -0700)]
Merge tag 'ext4_for_linus_stable' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Some ext4 bug fixes (mostly to address Syzbot reports)"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: bail out of ext4_xattr_ibody_get() fails for any reason
  ext4: add bounds checking in get_max_inline_xattr_value_size()
  ext4: add indication of ro vs r/w mounts in the mount message
  ext4: fix deadlock when converting an inline directory in nojournal mode
  ext4: improve error recovery code paths in __ext4_remount()
  ext4: improve error handling from ext4_dirhash()
  ext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled
  ext4: check iomap type only if ext4_iomap_begin() does not fail
  ext4: avoid a potential slab-out-of-bounds in ext4_group_desc_csum
  ext4: fix data races when using cached status extents
  ext4: avoid deadlock in fs reclaim with page writeback
  ext4: fix invalid free tracking in ext4_xattr_move_to_block()
  ext4: remove a BUG_ON in ext4_mb_release_group_pa()
  ext4: allow ext4_get_group_info() to fail
  ext4: fix lockdep warning when enabling MMP
  ext4: fix WARNING in mb_find_extent

18 months agoMerge tag 'fbdev-for-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Sun, 14 May 2023 00:41:58 +0000 (17:41 -0700)]
Merge tag 'fbdev-for-6.4-rc2' of git://git./linux/kernel/git/deller/linux-fbdev

Pull fbdev fixes from Helge Deller:

 - use after free fix in imsttfb (Zheng Wang)

 - fix error handling in arcfb (Zongjie Li)

 - lots of whitespace cleanups (Thomas Zimmermann)

 - add 1920x1080 modedb entry (me)

* tag 'fbdev-for-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: stifb: Fix info entry in sti_struct on error path
  fbdev: modedb: Add 1920x1080 at 60 Hz video mode
  fbdev: imsttfb: Fix use after free bug in imsttfb_probe
  fbdev: vfb: Remove trailing whitespaces
  fbdev: valkyriefb: Remove trailing whitespaces
  fbdev: stifb: Remove trailing whitespaces
  fbdev: sa1100fb: Remove trailing whitespaces
  fbdev: platinumfb: Remove trailing whitespaces
  fbdev: p9100: Remove trailing whitespaces
  fbdev: maxinefb: Remove trailing whitespaces
  fbdev: macfb: Remove trailing whitespaces
  fbdev: hpfb: Remove trailing whitespaces
  fbdev: hgafb: Remove trailing whitespaces
  fbdev: g364fb: Remove trailing whitespaces
  fbdev: controlfb: Remove trailing whitespaces
  fbdev: cg14: Remove trailing whitespaces
  fbdev: atmel_lcdfb: Remove trailing whitespaces
  fbdev: 68328fb: Remove trailing whitespaces
  fbdev: arcfb: Fix error handling in arcfb_probe()

18 months agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sun, 14 May 2023 00:37:32 +0000 (17:37 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fix from James Bottomley:
 "A single small fix for the UFS driver to fix a power management
  failure"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: core: Fix I/O hang that occurs when BKOPS fails in W-LUN suspend

18 months agoparisc: Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag
Helge Deller [Sat, 13 May 2023 20:30:06 +0000 (22:30 +0200)]
parisc: Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag

Fix the __swp_offset() and __swp_entry() macros due to commit 6d239fc78c0b
("parisc/mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE") which introduced the
SWP_EXCLUSIVE flag by reusing the _PAGE_ACCESSED flag.

Reported-by: Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de>
Tested-by: Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 6d239fc78c0b ("parisc/mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE")
Cc: <stable@vger.kernel.org> # v6.3+
18 months agoext4: bail out of ext4_xattr_ibody_get() fails for any reason
Theodore Ts'o [Fri, 12 May 2023 19:16:27 +0000 (15:16 -0400)]
ext4: bail out of ext4_xattr_ibody_get() fails for any reason

In ext4_update_inline_data(), if ext4_xattr_ibody_get() fails for any
reason, it's best if we just fail as opposed to stumbling on,
especially if the failure is EFSCORRUPTED.

Cc: stable@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: add bounds checking in get_max_inline_xattr_value_size()
Theodore Ts'o [Fri, 12 May 2023 19:11:02 +0000 (15:11 -0400)]
ext4: add bounds checking in get_max_inline_xattr_value_size()

Normally the extended attributes in the inode body would have been
checked when the inode is first opened, but if someone is writing to
the block device while the file system is mounted, it's possible for
the inode table to get corrupted.  Add bounds checking to avoid
reading beyond the end of allocated memory if this happens.

Reported-by: syzbot+1966db24521e5f6e23f7@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?extid=1966db24521e5f6e23f7
Cc: stable@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: add indication of ro vs r/w mounts in the mount message
Theodore Ts'o [Fri, 12 May 2023 18:49:57 +0000 (14:49 -0400)]
ext4: add indication of ro vs r/w mounts in the mount message

Whether the file system is mounted read-only or read/write is more
important than the quota mode, which we are already printing.  Add the
ro vs r/w indication since this can be helpful in debugging problems
from the console log.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: fix deadlock when converting an inline directory in nojournal mode
Theodore Ts'o [Sun, 7 May 2023 01:04:01 +0000 (21:04 -0400)]
ext4: fix deadlock when converting an inline directory in nojournal mode

In no journal mode, ext4_finish_convert_inline_dir() can self-deadlock
by calling ext4_handle_dirty_dirblock() when it already has taken the
directory lock.  There is a similar self-deadlock in
ext4_incvert_inline_data_nolock() for data files which we'll fix at
the same time.

A simple reproducer demonstrating the problem:

    mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64
    mount -t ext4 -o dirsync /dev/vdc /vdc
    cd /vdc
    mkdir file0
    cd file0
    touch file0
    touch file1
    attr -s BurnSpaceInEA -V abcde .
    touch supercalifragilisticexpialidocious

Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20230507021608.1290720-1-tytso@mit.edu
Reported-by: syzbot+91dccab7c64e2850a4e5@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=ba84cc80a9491d65416bc7877e1650c87530fe8a
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: improve error recovery code paths in __ext4_remount()
Theodore Ts'o [Sat, 6 May 2023 02:20:29 +0000 (22:20 -0400)]
ext4: improve error recovery code paths in __ext4_remount()

If there are failures while changing the mount options in
__ext4_remount(), we need to restore the old mount options.

This commit fixes two problem.  The first is there is a chance that we
will free the old quota file names before a potential failure leading
to a use-after-free.  The second problem addressed in this commit is
if there is a failed read/write to read-only transition, if the quota
has already been suspended, we need to renable quota handling.

Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20230506142419.984260-2-tytso@mit.edu
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: improve error handling from ext4_dirhash()
Theodore Ts'o [Sat, 6 May 2023 15:59:13 +0000 (11:59 -0400)]
ext4: improve error handling from ext4_dirhash()

The ext4_dirhash() will *almost* never fail, especially when the hash
tree feature was first introduced.  However, with the addition of
support of encrypted, casefolded file names, that function can most
certainly fail today.

So make sure the callers of ext4_dirhash() properly check for
failures, and reflect the errors back up to their callers.

Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20230506142419.984260-1-tytso@mit.edu
Reported-by: syzbot+394aa8a792cb99dbc837@syzkaller.appspotmail.com
Reported-by: syzbot+344aaa8697ebd232bfc8@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=db56459ea4ac4a676ae4b4678f633e55da005a9b
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled
Theodore Ts'o [Sat, 6 May 2023 01:02:30 +0000 (21:02 -0400)]
ext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled

When a file system currently mounted read/only is remounted
read/write, if we clear the SB_RDONLY flag too early, before the quota
is initialized, and there is another process/thread constantly
attempting to create a directory, it's possible to trigger the

WARN_ON_ONCE(dquot_initialize_needed(inode));

in ext4_xattr_block_set(), with the following stack trace:

   WARNING: CPU: 0 PID: 5338 at fs/ext4/xattr.c:2141 ext4_xattr_block_set+0x2ef2/0x3680
   RIP: 0010:ext4_xattr_block_set+0x2ef2/0x3680 fs/ext4/xattr.c:2141
   Call Trace:
    ext4_xattr_set_handle+0xcd4/0x15c0 fs/ext4/xattr.c:2458
    ext4_initxattrs+0xa3/0x110 fs/ext4/xattr_security.c:44
    security_inode_init_security+0x2df/0x3f0 security/security.c:1147
    __ext4_new_inode+0x347e/0x43d0 fs/ext4/ialloc.c:1324
    ext4_mkdir+0x425/0xce0 fs/ext4/namei.c:2992
    vfs_mkdir+0x29d/0x450 fs/namei.c:4038
    do_mkdirat+0x264/0x520 fs/namei.c:4061
    __do_sys_mkdirat fs/namei.c:4076 [inline]
    __se_sys_mkdirat fs/namei.c:4074 [inline]
    __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4074

Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20230506142419.984260-1-tytso@mit.edu
Reported-by: syzbot+6385d7d3065524c5ca6d@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=6513f6cb5cd6b5fc9f37e3bb70d273b94be9c34c
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: check iomap type only if ext4_iomap_begin() does not fail
Baokun Li [Fri, 5 May 2023 13:24:29 +0000 (21:24 +0800)]
ext4: check iomap type only if ext4_iomap_begin() does not fail

When ext4_iomap_overwrite_begin() calls ext4_iomap_begin() map blocks may
fail for some reason (e.g. memory allocation failure, bare disk write), and
later because "iomap->type ! = IOMAP_MAPPED" triggers WARN_ON(). When ext4
iomap_begin() returns an error, it is normal that the type of iomap->type
may not match the expectation. Therefore, we only determine if iomap->type
is as expected when ext4_iomap_begin() is executed successfully.

Cc: stable@kernel.org
Reported-by: syzbot+08106c4b7d60702dbc14@syzkaller.appspotmail.com
Link: https://lore.kernel.org/all/00000000000015760b05f9b4eee9@google.com
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230505132429.714648-1-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: avoid a potential slab-out-of-bounds in ext4_group_desc_csum
Tudor Ambarus [Thu, 4 May 2023 12:15:25 +0000 (12:15 +0000)]
ext4: avoid a potential slab-out-of-bounds in ext4_group_desc_csum

When modifying the block device while it is mounted by the filesystem,
syzbot reported the following:

BUG: KASAN: slab-out-of-bounds in crc16+0x206/0x280 lib/crc16.c:58
Read of size 1 at addr ffff888075f5c0a8 by task syz-executor.2/15586

CPU: 1 PID: 15586 Comm: syz-executor.2 Not tainted 6.2.0-rc5-syzkaller-00205-gc96618275234 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x290 lib/dump_stack.c:106
 print_address_description+0x74/0x340 mm/kasan/report.c:306
 print_report+0x107/0x1f0 mm/kasan/report.c:417
 kasan_report+0xcd/0x100 mm/kasan/report.c:517
 crc16+0x206/0x280 lib/crc16.c:58
 ext4_group_desc_csum+0x81b/0xb20 fs/ext4/super.c:3187
 ext4_group_desc_csum_set+0x195/0x230 fs/ext4/super.c:3210
 ext4_mb_clear_bb fs/ext4/mballoc.c:6027 [inline]
 ext4_free_blocks+0x191a/0x2810 fs/ext4/mballoc.c:6173
 ext4_remove_blocks fs/ext4/extents.c:2527 [inline]
 ext4_ext_rm_leaf fs/ext4/extents.c:2710 [inline]
 ext4_ext_remove_space+0x24ef/0x46a0 fs/ext4/extents.c:2958
 ext4_ext_truncate+0x177/0x220 fs/ext4/extents.c:4416
 ext4_truncate+0xa6a/0xea0 fs/ext4/inode.c:4342
 ext4_setattr+0x10c8/0x1930 fs/ext4/inode.c:5622
 notify_change+0xe50/0x1100 fs/attr.c:482
 do_truncate+0x200/0x2f0 fs/open.c:65
 handle_truncate fs/namei.c:3216 [inline]
 do_open fs/namei.c:3561 [inline]
 path_openat+0x272b/0x2dd0 fs/namei.c:3714
 do_filp_open+0x264/0x4f0 fs/namei.c:3741
 do_sys_openat2+0x124/0x4e0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_creat fs/open.c:1402 [inline]
 __se_sys_creat fs/open.c:1396 [inline]
 __x64_sys_creat+0x11f/0x160 fs/open.c:1396
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f72f8a8c0c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f72f97e3168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f72f8bac050 RCX: 00007f72f8a8c0c9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007f72f8ae7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd165348bf R14: 00007f72f97e3300 R15: 0000000000022000

Replace
le16_to_cpu(sbi->s_es->s_desc_size)
with
sbi->s_desc_size

It reduces ext4's compiled text size, and makes the code more efficient
(we remove an extra indirect reference and a potential byte
swap on big endian systems), and there is no downside. It also avoids the
potential KASAN / syzkaller failure, as a bonus.

Reported-by: syzbot+fc51227e7100c9294894@syzkaller.appspotmail.com
Reported-by: syzbot+8785e41224a3afd04321@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=70d28d11ab14bd7938f3e088365252aa923cff42
Link: https://syzkaller.appspot.com/bug?id=b85721b38583ecc6b5e72ff524c67302abbc30f3
Link: https://lore.kernel.org/all/000000000000ece18705f3b20934@google.com/
Fixes: 717d50e4971b ("Ext4: Uninitialized Block Groups")
Cc: stable@vger.kernel.org
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20230504121525.3275886-1-tudor.ambarus@linaro.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: fix data races when using cached status extents
Jan Kara [Thu, 4 May 2023 12:55:24 +0000 (14:55 +0200)]
ext4: fix data races when using cached status extents

When using cached extent stored in extent status tree in tree->cache_es
another process holding ei->i_es_lock for reading can be racing with us
setting new value of tree->cache_es. If the compiler would decide to
refetch tree->cache_es at an unfortunate moment, it could result in a
bogus in_range() check. Fix the possible race by using READ_ONCE() when
using tree->cache_es only under ei->i_es_lock for reading.

Cc: stable@kernel.org
Reported-by: syzbot+4a03518df1e31b537066@syzkaller.appspotmail.com
Link: https://lore.kernel.org/all/000000000000d3b33905fa0fd4a6@google.com
Suggested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230504125524.10802-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: avoid deadlock in fs reclaim with page writeback
Jan Kara [Thu, 4 May 2023 12:47:23 +0000 (14:47 +0200)]
ext4: avoid deadlock in fs reclaim with page writeback

Ext4 has a filesystem wide lock protecting ext4_writepages() calls to
avoid races with switching of journalled data flag or inode format. This
lock can however cause a deadlock like:

CPU0                            CPU1

ext4_writepages()
  percpu_down_read(sbi->s_writepages_rwsem);
                                ext4_change_inode_journal_flag()
                                  percpu_down_write(sbi->s_writepages_rwsem);
                                    - blocks, all readers block from now on
  ext4_do_writepages()
    ext4_init_io_end()
      kmem_cache_zalloc(io_end_cachep, GFP_KERNEL)
        fs_reclaim frees dentry...
          dentry_unlink_inode()
            iput() - last ref =>
              iput_final() - inode dirty =>
                write_inode_now()...
                  ext4_writepages() tries to acquire sbi->s_writepages_rwsem
                    and blocks forever

Make sure we cannot recurse into filesystem reclaim from writeback code
to avoid the deadlock.

Reported-by: syzbot+6898da502aef574c5f8a@syzkaller.appspotmail.com
Link: https://lore.kernel.org/all/0000000000004c66b405fa108e27@google.com
Fixes: c8585c6fcaf2 ("ext4: fix races between changing inode journal mode and ext4_writepages")
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230504124723.20205-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: fix invalid free tracking in ext4_xattr_move_to_block()
Theodore Ts'o [Sun, 30 Apr 2023 07:04:13 +0000 (03:04 -0400)]
ext4: fix invalid free tracking in ext4_xattr_move_to_block()

In ext4_xattr_move_to_block(), the value of the extended attribute
which we need to move to an external block may be allocated by
kvmalloc() if the value is stored in an external inode.  So at the end
of the function the code tried to check if this was the case by
testing entry->e_value_inum.

However, at this point, the pointer to the xattr entry is no longer
valid, because it was removed from the original location where it had
been stored.  So we could end up calling kvfree() on a pointer which
was not allocated by kvmalloc(); or we could also potentially leak
memory by not freeing the buffer when it should be freed.  Fix this by
storing whether it should be freed in a separate variable.

Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20230430160426.581366-1-tytso@mit.edu
Link: https://syzkaller.appspot.com/bug?id=5c2aee8256e30b55ccf57312c16d88417adbd5e1
Link: https://syzkaller.appspot.com/bug?id=41a6b5d4917c0412eb3b3c3c604965bed7d7420b
Reported-by: syzbot+64b645917ce07d89bde5@syzkaller.appspotmail.com
Reported-by: syzbot+0d042627c4f2ad332195@syzkaller.appspotmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: remove a BUG_ON in ext4_mb_release_group_pa()
Theodore Ts'o [Sat, 29 Apr 2023 20:14:46 +0000 (16:14 -0400)]
ext4: remove a BUG_ON in ext4_mb_release_group_pa()

If a malicious fuzzer overwrites the ext4 superblock while it is
mounted such that the s_first_data_block is set to a very large
number, the calculation of the block group can underflow, and trigger
a BUG_ON check.  Change this to be an ext4_warning so that we don't
crash the kernel.

Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20230430154311.579720-3-tytso@mit.edu
Reported-by: syzbot+e2efa3efc15a1c9e95c3@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=69b28112e098b070f639efb356393af3ffec4220
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
18 months agoext4: allow ext4_get_group_info() to fail
Theodore Ts'o [Sat, 29 Apr 2023 04:06:28 +0000 (00:06 -0400)]
ext4: allow ext4_get_group_info() to fail

Previously, ext4_get_group_info() would treat an invalid group number
as BUG(), since in theory it should never happen.  However, if a
malicious attaker (or fuzzer) modifies the superblock via the block
device while it is the file system is mounted, it is possible for
s_first_data_block to get set to a very large number.  In that case,
when calculating the block group of some block number (such as the
starting block of a preallocation region), could result in an
underflow and very large block group number.  Then the BUG_ON check in
ext4_get_group_info() would fire, resutling in a denial of service
attack that can be triggered by root or someone with write access to
the block device.

For a quality of implementation perspective, it's best that even if
the system administrator does something that they shouldn't, that it
will not trigger a BUG.  So instead of BUG'ing, ext4_get_group_info()
will call ext4_error and return NULL.  We also add fallback code in
all of the callers of ext4_get_group_info() that it might NULL.

Also, since ext4_get_group_info() was already borderline to be an
inline function, un-inline it.  The results in a next reduction of the
compiled text size of ext4 by roughly 2k.

Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20230430154311.579720-2-tytso@mit.edu
Reported-by: syzbot+e2efa3efc15a1c9e95c3@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=69b28112e098b070f639efb356393af3ffec4220
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
18 months agoMerge tag 'block-6.4-2023-05-13' of git://git.kernel.dk/linux
Linus Torvalds [Sat, 13 May 2023 14:51:03 +0000 (09:51 -0500)]
Merge tag 'block-6.4-2023-05-13' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:
 "Just a few minor fixes for drivers, and a deletion of a file that is
  woefully out-of-date these days"

* tag 'block-6.4-2023-05-13' of git://git.kernel.dk/linux:
  Documentation/block: drop the request.rst file
  ublk: fix command op code check
  block/rnbd: replace REQ_OP_FLUSH with REQ_OP_WRITE
  nbd: Fix debugfs_create_dir error checking

18 months agocxl: Add missing return to cdat read error path
Dave Jiang [Sat, 13 May 2023 07:20:06 +0000 (00:20 -0700)]
cxl: Add missing return to cdat read error path

Add a return to the error path when cxl_cdat_read_table() fails. Current
code continues with the table pointer points to freed memory.

Fixes: 7a877c923995 ("cxl/pci: Simplify CDAT retrieval error path")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/168382793506.3510737.4792518576623749076.stgit@djiang5-mobl3
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
18 months agotools/testing/cxl: Use DEFINE_STATIC_SRCU()
Dan Williams [Fri, 12 May 2023 21:31:35 +0000 (14:31 -0700)]
tools/testing/cxl: Use DEFINE_STATIC_SRCU()

Starting with commit:

95433f726301 ("srcu: Begin offloading srcu_struct fields to srcu_update")

...it is no longer possible to do:

static DEFINE_SRCU(x)

Switch to DEFINE_STATIC_SRCU(x) to fix:

tools/testing/cxl/test/mock.c:22:1: error: duplicate â€˜static’
   22 | static DEFINE_SRCU(cxl_mock_srcu);
      | ^~~~~~

Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/168392709546.1135523.10424917245934547117.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
18 months agox86/retbleed: Fix return thunk alignment
Borislav Petkov (AMD) [Fri, 12 May 2023 21:12:26 +0000 (23:12 +0200)]
x86/retbleed: Fix return thunk alignment

SYM_FUNC_START_LOCAL_NOALIGN() adds an endbr leading to this layout
(leaving only the last 2 bytes of the address):

  3bff <zen_untrain_ret>:
  3bff:       f3 0f 1e fa             endbr64
  3c03:       f6                      test   $0xcc,%bl

  3c04 <__x86_return_thunk>:
  3c04:       c3                      ret
  3c05:       cc                      int3
  3c06:       0f ae e8                lfence

However, "the RET at __x86_return_thunk must be on a 64 byte boundary,
for alignment within the BTB."

Use SYM_START instead.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
18 months agoMerge tag 'for-6.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Fri, 12 May 2023 22:10:32 +0000 (17:10 -0500)]
Merge tag 'for-6.4-rc1-tag' of git://git./linux/kernel/git/kdave/linux

Pull more btrfs fixes from David Sterba:

 - fix incorrect number of bitmap entries for space cache if loading is
   interrupted by some error

 - fix backref walking, this breaks a mode of LOGICAL_INO_V2 ioctl that
   is used in deduplication tools

 - zoned mode fixes:
      - properly finish zone reserved for relocation
      - correctly calculate super block zone end on ZNS
      - properly initialize new extent buffer for redirty

 - make mount option clear_cache work with block-group-tree, to rebuild
   free-space-tree instead of temporarily disabling it that would lead
   to a forced read-only mount

 - fix alignment check for offset when printing extent item

* tag 'for-6.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: make clear_cache mount option to rebuild FST without disabling it
  btrfs: zero the buffer before marking it dirty in btrfs_redirty_list_add
  btrfs: zoned: fix full zone super block reading on ZNS
  btrfs: zoned: zone finish data relocation BG with last IO
  btrfs: fix backref walking not returning all inode refs
  btrfs: fix space cache inconsistency after error loading it from disk
  btrfs: print-tree: parent bytenr must be aligned to sector size

18 months agoMerge tag '6.4-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 12 May 2023 22:01:36 +0000 (17:01 -0500)]
Merge tag '6.4-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs client fixes from Steve French:

 - fix for copy_file_range bug for very large files that are multiples
   of rsize

 - do not ignore "isolated transport" flag if set on share

 - set rasize default better

 - three fixes related to shutdown and freezing (fixes 4 xfstests, and
   closes deferred handles faster in some places that were missed)

* tag '6.4-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: release leases for deferred close handles when freezing
  smb3: fix problem remounting a share after shutdown
  SMB3: force unmount was failing to close deferred close files
  smb3: improve parallel reads of large files
  do not reuse connection if share marked as isolated
  cifs: fix pcchunk length type in smb2_copychunk_range

18 months agoMerge tag 'vfs/v6.4-rc1/pipe' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
Linus Torvalds [Fri, 12 May 2023 21:56:09 +0000 (16:56 -0500)]
Merge tag 'vfs/v6.4-rc1/pipe' of gitolite.pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fix from Christian Brauner:
 "During the pipe nonblock rework the check for both O_NONBLOCK and
  IOCB_NOWAIT was dropped. Both checks need to be performed to ensure
  that files without O_NONBLOCK but IOCB_NOWAIT don't block when writing
  to or reading from a pipe.

  This just contains the fix adding the check for IOCB_NOWAIT back in"

* tag 'vfs/v6.4-rc1/pipe' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
  pipe: check for IOCB_NOWAIT alongside O_NONBLOCK

18 months agoMerge tag 'io_uring-6.4-2023-05-12' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 12 May 2023 21:39:05 +0000 (16:39 -0500)]
Merge tag 'io_uring-6.4-2023-05-12' of git://git.kernel.dk/linux

Pull io_uring fix from Jens Axboe:
 "Just a single fix making io_uring_sqe_cmd() available regardless of
  CONFIG_IO_URING, fixing a regression introduced during the merge
  window if nvme was selected but io_uring was not"

* tag 'io_uring-6.4-2023-05-12' of git://git.kernel.dk/linux:
  io_uring: make io_uring_sqe_cmd() unconditionally available

18 months agoMerge tag 'riscv-for-linus-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 12 May 2023 21:31:55 +0000 (16:31 -0500)]
Merge tag 'riscv-for-linus-6.4-rc2' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fix from Palmer Dabbelt:
 "Just a single fix this week for a build issue. That'd usually be a
  good sign, but we've started to get some reports of boot failures on
  some hardware/bootloader configurations. Nothing concrete yet, but
  I've got a funny feeling that's where much of the bug hunting is going
  right now.

  Nothing's reproducing on my end, though, and this fixes some pretty
  concrete issues so I figured there's no reason to delay it:

   - a fix to the linker script to avoid orpahaned sections in
     kernel/pi"

* tag 'riscv-for-linus-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fix orphan section warnings caused by kernel/pi

18 months agoDocumentation/block: drop the request.rst file
Randy Dunlap [Sun, 7 May 2023 18:26:06 +0000 (11:26 -0700)]
Documentation/block: drop the request.rst file

Documentation/block/request.rst is outdated and should be removed.
Also delete its entry in the block/index.rst file.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20230507182606.12647-1-rdunlap@infradead.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
18 months agopipe: check for IOCB_NOWAIT alongside O_NONBLOCK
Jens Axboe [Tue, 9 May 2023 15:12:24 +0000 (09:12 -0600)]
pipe: check for IOCB_NOWAIT alongside O_NONBLOCK

Pipe reads or writes need to enable nonblocking attempts, if either
O_NONBLOCK is set on the file, or IOCB_NOWAIT is set in the iocb being
passed in. The latter isn't currently true, ensure we check for both
before waiting on data or space.

Fixes: afed6271f5b0 ("pipe: set FMODE_NOWAIT on pipes")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Message-Id: <e5946d67-4e5e-b056-ba80-656bab12d9f6@kernel.dk>
Signed-off-by: Christian Brauner <brauner@kernel.org>
18 months agoublk: fix command op code check
Ming Lei [Fri, 5 May 2023 15:31:42 +0000 (23:31 +0800)]
ublk: fix command op code check

In case of CONFIG_BLKDEV_UBLK_LEGACY_OPCODES, type of cmd opcode could
be 0 or 'u'; and type can only be 'u' if CONFIG_BLKDEV_UBLK_LEGACY_OPCODES
isn't set.

So fix the wrong check.

Fixes: 2d786e66c966 ("block: ublk: switch to ioctl command encoding")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20230505153142.1258336-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
18 months agoblock/rnbd: replace REQ_OP_FLUSH with REQ_OP_WRITE
Guoqing Jiang [Fri, 12 May 2023 03:46:31 +0000 (11:46 +0800)]
block/rnbd: replace REQ_OP_FLUSH with REQ_OP_WRITE

Since flush bios are implemented as writes with no data and
the preflush flag per Christoph's comment [1].

And we need to change it in rnbd accordingly. Otherwise, I
got splatting when create fs from rnbd client.

[  464.028545] ------------[ cut here ]------------
[  464.028553] WARNING: CPU: 0 PID: 65 at block/blk-core.c:751 submit_bio_noacct+0x32c/0x5d0
[ ... ]
[  464.028668] CPU: 0 PID: 65 Comm: kworker/0:1H Tainted: G           OE      6.4.0-rc1 #9
[  464.028671] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.15.0-0-g2dd4b9b-rebuilt.opensuse.org 04/01/2014
[  464.028673] Workqueue: ib-comp-wq ib_cq_poll_work [ib_core]
[  464.028717] RIP: 0010:submit_bio_noacct+0x32c/0x5d0
[  464.028720] Code: 03 0f 85 51 fe ff ff 48 8b 43 18 8b 88 04 03 00 00 85 c9 0f 85 3f fe ff ff e9 be fd ff ff 0f b6 d0 3c 0d 74 26 83 fa 01 74 21 <0f> 0b b8 0a 00 00 00 e9 56 fd ff ff 4c 89 e7 e8 70 a1 03 00 84 c0
[  464.028722] RSP: 0018:ffffaf3680b57c68 EFLAGS: 00010202
[  464.028724] RAX: 0000000000060802 RBX: ffffa09dcc18bf00 RCX: 0000000000000000
[  464.028726] RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffffa09dde081d00
[  464.028727] RBP: ffffaf3680b57c98 R08: ffffa09dde081d00 R09: ffffa09e38327200
[  464.028729] R10: 0000000000000000 R11: 0000000000000000 R12: ffffa09dde081d00
[  464.028730] R13: ffffa09dcb06e1e8 R14: 0000000000000000 R15: 0000000000200000
[  464.028733] FS:  0000000000000000(0000) GS:ffffa09e3bc00000(0000) knlGS:0000000000000000
[  464.028735] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  464.028736] CR2: 000055a4e8206c40 CR3: 0000000119f06000 CR4: 00000000003506f0
[  464.028738] Call Trace:
[  464.028740]  <TASK>
[  464.028746]  submit_bio+0x1b/0x80
[  464.028748]  rnbd_srv_rdma_ev+0x50d/0x10c0 [rnbd_server]
[  464.028754]  ? percpu_ref_get_many.constprop.0+0x55/0x140 [rtrs_server]
[  464.028760]  ? __this_cpu_preempt_check+0x13/0x20
[  464.028769]  process_io_req+0x1dc/0x450 [rtrs_server]
[  464.028775]  rtrs_srv_inv_rkey_done+0x67/0xb0 [rtrs_server]
[  464.028780]  __ib_process_cq+0xbc/0x1f0 [ib_core]
[  464.028793]  ib_cq_poll_work+0x2b/0xa0 [ib_core]
[  464.028804]  process_one_work+0x2a9/0x580

[1]. https://lore.kernel.org/all/ZFHgefWofVt24tRl@infradead.org/

Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20230512034631.28686-1-guoqing.jiang@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
18 months agonbd: Fix debugfs_create_dir error checking
Ivan Orlov [Fri, 12 May 2023 13:05:32 +0000 (17:05 +0400)]
nbd: Fix debugfs_create_dir error checking

The debugfs_create_dir function returns ERR_PTR in case of error, and the
only correct way to check if an error occurred is 'IS_ERR' inline function.
This patch will replace the null-comparison with IS_ERR.

Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230512130533.98709-1-ivan.orlov0322@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
18 months agoMerge tag 'firewire-fixes-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 12 May 2023 12:59:08 +0000 (07:59 -0500)]
Merge tag 'firewire-fixes-6.4-rc2' of git://git./linux/kernel/git/ieee1394/linux1394

Pull firewire fix from Takashi Sakamoto:

 - fix early release of request packet

* tag 'firewire-fixes-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: net: fix unexpected release of object for asynchronous request packet

18 months agofbdev: stifb: Fix info entry in sti_struct on error path
Helge Deller [Fri, 12 May 2023 09:50:33 +0000 (11:50 +0200)]
fbdev: stifb: Fix info entry in sti_struct on error path

Minor fix to reset the info field to NULL in case of error.

Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: modedb: Add 1920x1080 at 60 Hz video mode
Helge Deller [Sat, 22 Apr 2023 21:24:26 +0000 (23:24 +0200)]
fbdev: modedb: Add 1920x1080 at 60 Hz video mode

Add typical resolution for Full-HD monitors.

Signed-off-by: Helge Deller <deller@gmx.de>
18 months agoMerge tag 'drm-fixes-2023-05-12' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Thu, 11 May 2023 21:56:58 +0000 (16:56 -0500)]
Merge tag 'drm-fixes-2023-05-12' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "About the usual for this stage, bunch of amdgpu, a few i915 and a
  scattering of fixes across the board"

  dsc:
   - macro fixes

  simplefb:
   - fix VESA format

  scheduler:
   - timeout handling fix

  fbdev:
   - avoid potential out-of-bounds access in generic fbdev emulation

  ast:
   - improve AST2500+ compat on ARM

  mipi-dsi:
   - small mipi-dsi fix

  amdgpu:
   - VCN3 fixes
   - APUs always support PCI atomics
   - legacy power management fixes
   - DCN 3.1.4 fix
   - DCFCLK fix
   - fix several RAS irq refcount mismatches
   - GPU Reset fix
   - GFX 11.0.4 fix

  i915:
   - taint kernel when force_probe is used
   - NULL deref and div-by-zero fixes for display
   - GuC error capture fix for Xe devices"

* tag 'drm-fixes-2023-05-12' of git://anongit.freedesktop.org/drm/drm: (24 commits)
  drm/amdgpu: change gfx 11.0.4 external_id range
  drm/amdgpu/jpeg: Remove harvest checking for JPEG3
  drm/amdgpu/gfx: disable gfx9 cp_ecc_error_irq only when enabling legacy gfx ras
  drm/amd/pm: avoid potential UBSAN issue on legacy asics
  drm/i915: taint kernel when force probing unsupported devices
  drm/i915/dp: prevent potential div-by-zero
  drm/i915: Fix NULL ptr deref by checking new_crtc_state
  drm/i915/guc: Don't capture Gen8 regs on Xe devices
  drm/amdgpu: disable sdma ecc irq only when sdma RAS is enabled in suspend
  drm/amdgpu: Fix vram recover doesn't work after whole GPU reset (v2)
  drm/amdgpu: drop gfx_v11_0_cp_ecc_error_irq_funcs
  drm/amd/display: Enforce 60us prefetch for 200Mhz DCFCLK modes
  drm/amd/display: Add symclk workaround during disable link output
  drm/amd/pm: parse pp_handle under appropriate conditions
  drm/amdgpu: set gfx9 onwards APU atomics support to be true
  drm/amdgpu/nv: update VCN 3 max HEVC encoding resolution
  drm/sched: Check scheduler work queue before calling timeout handling
  drm/mipi-dsi: Set the fwnode for mipi_dsi_device
  drm/nouveau/disp: More DP_RECEIVER_CAP_SIZE array fixes
  drm/dsc: fix DP_DSC_MAX_BPP_DELTA_* macro values
  ...

18 months agoMerge tag 'xfs-6.4-rc1-fixes' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Thu, 11 May 2023 21:51:11 +0000 (16:51 -0500)]
Merge tag 'xfs-6.4-rc1-fixes' of git://git./fs/xfs/xfs-linux

Pull xfs bug fixes from Dave Chinner:
 "Largely minor bug fixes and cleanups, th emost important of which are
  probably the fixes for regressions in the extent allocation code:

   - fixes for inode garbage collection shutdown racing with work queue
     updates

   - ensure inodegc workers run on the CPU they are supposed to

   - disable counter scrubbing until we can exclusively freeze the
     filesystem from the kernel

   - regression fixes for new allocation related bugs

   - a couple of minor cleanups"

* tag 'xfs-6.4-rc1-fixes' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: fix xfs_inodegc_stop racing with mod_delayed_work
  xfs: disable reaping in fscounters scrub
  xfs: check that per-cpu inodegc workers actually run on that cpu
  xfs: explicitly specify cpu when forcing inodegc delayed work to run immediately
  xfs: fix negative array access in xfs_getbmap
  xfs: don't allocate into the data fork for an unshare request
  xfs: flush dirty data and drain directios before scrubbing cow fork
  xfs: set bnobt/cntbt numrecs correctly when formatting new AGs
  xfs: don't unconditionally null args->pag in xfs_bmap_btalloc_at_eof

18 months agofbdev: imsttfb: Fix use after free bug in imsttfb_probe
Zheng Wang [Thu, 27 Apr 2023 03:08:41 +0000 (11:08 +0800)]
fbdev: imsttfb: Fix use after free bug in imsttfb_probe

A use-after-free bug may occur if init_imstt invokes framebuffer_release
and free the info ptr. The caller, imsttfb_probe didn't notice that and
still keep the ptr as private data in pdev.

If we remove the driver which will call imsttfb_remove to make cleanup,
UAF happens.

Fix it by return error code if bad case happens in init_imstt.

Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agoMerge tag 'amd-drm-fixes-6.4-2023-05-11' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Thu, 11 May 2023 20:46:33 +0000 (06:46 +1000)]
Merge tag 'amd-drm-fixes-6.4-2023-05-11' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amdgpu:
- VCN3 fixes
- APUs always support PCI atomics
- Legacy power management fixes
- DCN 3.1.4 fix
- DCFCLK fix
- Fix several RAS irq refcount mismatches
- GPU Reset fix
- GFX 11.0.4 fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230511141755.7896-1-alexander.deucher@amd.com
18 months agoMerge tag 'drm-intel-fixes-2023-05-11-1' of git://anongit.freedesktop.org/drm/drm...
Dave Airlie [Thu, 11 May 2023 20:45:54 +0000 (06:45 +1000)]
Merge tag 'drm-intel-fixes-2023-05-11-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix to taint kernel when force_probe is used
- Null deref and div-by-zero fixes for display
- GuC error capture fix for Xe devices

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZFzdYV3O8lvVJ1DQ@jlahtine-mobl.ger.corp.intel.com
18 months agoMerge tag 'drm-misc-fixes-2023-05-11' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Thu, 11 May 2023 19:32:36 +0000 (05:32 +1000)]
Merge tag 'drm-misc-fixes-2023-05-11' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

drm-misc-fixes for v6.4-rc2:
- More DSC macro fixes.
- Small mipi-dsi fix.
- Scheduler timeout handling fix.

---

drm-misc-fixes for v6.4-rc1:
- Fix DSC macros.
- Fix VESA format for simplefb.
- Prohibit potential out-of-bounds access in generic fbdev emulation.
- Improve AST2500+ compat on ARM.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b34135e3-2651-4e0a-a776-9b047882b1b2@linux.intel.com
18 months agoMerge tag 'dt-fixes-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt
Linus Torvalds [Thu, 11 May 2023 14:01:40 +0000 (09:01 -0500)]
Merge tag 'dt-fixes-6.4' of git://git./linux/kernel/git/krzk/linux-dt

Pull devicetree binding fixes from Krzysztof Kozlowski:
 "A few fixes for Devicetree bindings and related docs, all for issues
  introduced in v6.4-rc1 commits:

   - media/ov2685: fix number of possible data lanes, as old binding
     explicitly mentioned one data lane. This fixes dt_binding_check
     warnings like:

       Documentation/devicetree/bindings/media/rockchip-isp1.example.dtb: camera@3c: port:endpoint:data-lanes: [[1]] is too short
       From schema: Documentation/devicetree/bindings/media/i2c/ovti,ov2685.yaml

   - PCI/fsl,imx6q: correct parsing of assigned-clocks and related
     properties and make the clocks more specific per PCI device (host
     or endpoint). This fixes dtschema limitation and dt_binding_check
     warnings like:

       Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.example.dtb: pcie-ep@33800000: Unevaluated properties are not allowed
       From schema: Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml

   - Maintainers: correct path of Apple PWM binding. This fixes
     refcheckdocs warning"

* tag 'dt-fixes-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt:
  dt-bindings: PCI: fsl,imx6q: fix assigned-clocks warning
  MAINTAINERS: adjust file entry for ARM/APPLE MACHINE SUPPORT
  media: dt-bindings: ov2685: Correct data-lanes attribute

18 months agoMerge tag 'net-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 11 May 2023 13:42:47 +0000 (08:42 -0500)]
Merge tag 'net-6.4-rc2' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter.

  Current release - regressions:

   - mtk_eth_soc: fix NULL pointer dereference

  Previous releases - regressions:

   - core:
      - skb_partial_csum_set() fix against transport header magic value
      - fix load-tearing on sk->sk_stamp in sock_recv_cmsgs().
      - annotate sk->sk_err write from do_recvmmsg()
      - add vlan_get_protocol_and_depth() helper

   - netlink: annotate accesses to nlk->cb_running

   - netfilter: always release netdev hooks from notifier

  Previous releases - always broken:

   - core: deal with most data-races in sk_wait_event()

   - netfilter: fix possible bug_on with enable_hooks=1

   - eth: bonding: fix send_peer_notif overflow

   - eth: xpcs: fix incorrect number of interfaces

   - eth: ipvlan: fix out-of-bounds caused by unclear skb->cb

   - eth: stmmac: Initialize MAC_ONEUS_TIC_COUNTER register"

* tag 'net-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (31 commits)
  af_unix: Fix data races around sk->sk_shutdown.
  af_unix: Fix a data race of sk->sk_receive_queue->qlen.
  net: datagram: fix data-races in datagram_poll()
  net: mscc: ocelot: fix stat counter register values
  ipvlan:Fix out-of-bounds caused by unclear skb->cb
  docs: networking: fix x25-iface.rst heading & index order
  gve: Remove the code of clearing PBA bit
  tcp: add annotations around sk->sk_shutdown accesses
  net: add vlan_get_protocol_and_depth() helper
  net: pcs: xpcs: fix incorrect number of interfaces
  net: deal with most data-races in sk_wait_event()
  net: annotate sk->sk_err write from do_recvmmsg()
  netlink: annotate accesses to nlk->cb_running
  kselftest: bonding: add num_grat_arp test
  selftests: forwarding: lib: add netns support for tc rule handle stats get
  Documentation: bonding: fix the doc of peer_notif_delay
  bonding: fix send_peer_notif overflow
  net: ethernet: mtk_eth_soc: fix NULL pointer dereference
  selftests: nft_flowtable.sh: check ingress/egress chain too
  selftests: nft_flowtable.sh: monitor result file sizes
  ...

18 months agoMerge tag 'media/v6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Thu, 11 May 2023 13:35:52 +0000 (08:35 -0500)]
Merge tag 'media/v6.4-2' of git://git./linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - fix some unused-variable warning in mtk-mdp3

 - ignore unused suspend operations in nxp

 - some driver fixes in rcar-vin

* tag 'media/v6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: platform: mtk-mdp3: work around unused-variable warning
  media: nxp: ignore unused suspend operations
  media: rcar-vin: Select correct interrupt mode for V4L2_FIELD_ALTERNATE
  media: rcar-vin: Fix NV12 size alignment
  media: rcar-vin: Gen3 can not scale NV12

18 months agofbdev: vfb: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:14 +0000 (11:23 +0200)]
fbdev: vfb: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: valkyriefb: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:13 +0000 (11:23 +0200)]
fbdev: valkyriefb: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: stifb: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:12 +0000 (11:23 +0200)]
fbdev: stifb: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: sa1100fb: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:11 +0000 (11:23 +0200)]
fbdev: sa1100fb: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: platinumfb: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:10 +0000 (11:23 +0200)]
fbdev: platinumfb: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: p9100: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:09 +0000 (11:23 +0200)]
fbdev: p9100: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: maxinefb: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:08 +0000 (11:23 +0200)]
fbdev: maxinefb: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: macfb: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:07 +0000 (11:23 +0200)]
fbdev: macfb: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: hpfb: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:06 +0000 (11:23 +0200)]
fbdev: hpfb: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: hgafb: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:05 +0000 (11:23 +0200)]
fbdev: hgafb: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
18 months agofbdev: g364fb: Remove trailing whitespaces
Thomas Zimmermann [Fri, 31 Mar 2023 09:23:04 +0000 (11:23 +0200)]
fbdev: g364fb: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>