The size of the critical section in this function appears to be larger
than necessary. The `wacom_udev_list_lock` exists to ensure that one
interface cannot begin checking if a shared object exists while a second
interface is doing the same (otherwise both could determine that no
object exists yet and create their own independent objects rather than
sharing just one). It should be safe for the critical section to end
once a fresly-allocated shared object would be found by other threads
(i.e., once it has been added to `wacom_udev_list`, which is looped
over by `wacom_get_hdev_data`).
This commit is a necessary pre-requisite for a later change to swap the
use of `devm_add_action` with `devm_add_action_or_reset`, which would
otherwise deadlock in its error case.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
DART has an additional global register to control which streams are
isolated. This register is a bit redundant since DART_TCR can already
be used to control isolation and is usually initialized to DART_STREAM_ALL
by the time we get control. Some DARTs (namely the one used for the audio
controller) however have some streams disabled initially. Make sure those
work by initializing DART_STREAMS_ENABLE during reset.
Reported-by: Martin Povišer <povik@protonmail.com>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Reviewed-by: Hector Martin <marcan@marcan.st>
Link: https://lore.kernel.org/r/20211019162253.45919-1-sven@svenpeter.dev
Signed-off-by: Joerg Roedel <jroedel@suse.de>
- Minor optimisations to SMMUv3 command creation and submission
- Numerous new compatible string for Qualcomm SMMUv2 implementations
-----BEGIN PGP SIGNATURE-----
iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmFut+0QHHdpbGxAa2Vy
bmVsLm9yZwAKCRC3rHDchMFjNKlKB/90/pBLdxo/npM5BJC5oQuaFCJjyI0lFlYr
5n6oDuc4c1rUsqFkasIOt/JxAxv9hzDoSkO1Y/LyhMfQ+0XJb52OcxEbGKMzNMSB
o5FdvAvMc/xTJYDyERlZffWgcS3K/gZzHrzhHhTJDZMWxeDXbD+lgQB7782Q4i5Z
zw3VEQYMO2d7t06Dy3tbzEBIsR8EJr3f9bMMNGGkON1vgusO7w8WSQ6Bn+O4q0WE
I3MrAGzDvjdazIsrzxNbecv8F9EtnLjdnECzdx5FSFXFQm8TZhz3KF7uwd+3dL8e
q/4H3oaggqSi70/ajl9LgKpyzokaVJ6KkX6tkHbs+p1pKlOzNqHx
=eoUE
-----END PGP SIGNATURE-----
Merge tag 'arm-smmu-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into arm/smmu
Arm SMMU updates for 5.16
- Minor optimisations to SMMUv3 command creation and submission
- Numerous new compatible string for Qualcomm SMMUv2 implementations
This patch adds a check for if the rumble queue ringbuffer is empty
prior to queuing the rumble workqueue. If the current rumble setting is
using a non-zero amplitude though, it will queue the worker anyway. This
is because the controller will automatically disable the rumble effect
if it isn't "refreshed".
This change improves bluetooth communication reliability with the
controller, since it reduces the amount of traffic.
Note that we still send a few periodic zero packets to avoid scenarios
where the controller fails to process the zero amplitude packet. Without
sending a few to be sure, the rumble could get stuck on until the
controller times out.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
It has been found that sending subcommands and rumble data packets at
too great a rate can result in controller disconnects. This patch limits
the rate of subcommands/rumble to once every 25 milliseconds.
Similar to sending subcommands, it is more reliable to send the rumble
data packets immediately after we've received an input report from the
controller. This results in far fewer bluetooth disconnects for the
controller.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch alters the method that the rumble data is sent to the
controller. Rather than using the enable rumble subcommand for this
purpose, the driver now employs the RUMBLE_ONLY output report. This has
the advantage of not needing to receive a subcommand reply (to the major
benefit of reducing IMU latency) and also seems to make the rumble
vibrations more continuous. Perhaps most importantly it reduces
disconnects during times of heavy rumble.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds support for the controller's IMU. The accelerometer and
gyro data are both provided to userspace using a second input device.
The devices can be associated using their uniq value (set to the
controller's MAC address).
A large part of this patch's functionality was provided by Carl Mueller.
The IMU device is blacklisted from the joydev input handler.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
If the controller's SPI flash contains user stick calibration(s), they
should be prioritized over the factory calibrations. The user
calibrations have 2 magic bytes preceding them. If the bytes are the
correct magic values, the user calibration is used.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds support for the joy-con charging grip. The peripheral
essentially behaves the same as a pro controller, but with two joy-cons
attached to the grip. However the grip exposes the two joy-cons as
separate hid devices, so extra handling is required. The joy-con is
queried to check if it is a right or left joy-con (since the product ID
is identical between left/right when using the grip).
Since controller model detection is now more complicated, the various
checks for hid product values have been replaced with helper macros to
reduce code duplication.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch sets the input device's uniq identifier to the controller's
MAC address. This is useful for future association between an IMU input
device with the normal input device as well as associating the
controller with any serial joy-con driver.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch fixes meaningless error output from trying to send
subcommands immediately after controller removal. It now disables
subcommands as soon as possible on removal.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch sets the most significant bit of the hid hw version to allow
userspace to distinguish between this driver's input mappings vs. the
default hid mappings. This prevents breaking userspace applications that
use SDL2 for gamepad input, allowing them to distinguish the mappings
based on the version.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Waiting to send subcommands until right after receiving an input report
drastically improves subcommand reliability. If the driver has finished
initial controller configuration, it now waits until receiving an input
report for all subcommands.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The controller occasionally doesn't respond to subcommands. It appears
that it's dropping them. To improve reliability, this patch attempts one
retry in the case of a synchronous send timeout. In testing, this has
resolved all timeout failures (most common for LED setting and rumble
setting subcommands).
The 1 second timeout is excessively long for rumble and LED subcommands,
so the timeout has been made a param for joycon_hid_send_sync. Most
subcommands continue to use the 1s timeout, since they can result in
long response times. Rumble and LED setting subcommands have been
reduced to 250ms, since response times for them are much quicker (and
this significantly reduces the observable impact in the case of a retry
being required).
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds support for controller rumble.
The ff_effect weak magnitude is associated with the pro controller's
right motor (or with a right joy-con). The strong magnitude is
associated with the pro's left motor (or a left joy-con).
The rumble data is sent periodically (currently configured for every 50
milliseconds). If the controller receives no rumble data for too long a
time period, it will stop vibrating. The data is also sent every time
joycon_set_rumble is called to avoid latency of up to 50ms.
Because the rumble subcommands are sent in a deferred workqueue (they
can't be sent in the play_effect function due to the hid send sleeping),
the effects are queued. This ensures that no rumble effect is missed due
to them arriving in too quick of succession.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds the ability to set the intensity level of the home
button's LED.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds power_supply functionality to the switch controller
driver for its battery.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds led_classdev functionality to the switch controller
driver. It adds support for the 4 player LEDs. The Home Button LED still
needs to be supported on the pro controllers and right joy-con.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The hid-nintendo driver supports the Nintendo Switch Pro Controllers and
the Joy-Cons. The Pro Controllers can be used over USB or Bluetooth.
The Joy-Cons each create their own, independent input devices, so it is
up to userspace to combine them if desired.
Signed-off-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
brightness_set_blocking() callback expects function returning int. This fixes
the follwoing build failure:
drivers/hid/hid-playstation.c: In function ‘dualsense_player_led_set_brightness’:
drivers/hid/hid-playstation.c:885:1: error: no return statement in function returning non-void [-Werror=return-type]
}
^
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The DualSense player LEDs were so far not adjustable from user-space.
This patch exposes each LED individually through the LED class. Each
LED uses the new 'player' function resulting in a name like:
'inputX:white:player-1' for the first LED.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Player LEDs are commonly found on game controllers from Nintendo and Sony
to indicate a player ID across a number of LEDs. For example, "Player 2"
might be indicated as "-x--" on a device with 4 LEDs where "x" means on.
This patch introduces LED_FUNCTION_PLAYER1-5 defines to properly indicate
player LEDs from the kernel. Until now there was no good standard, which
resulted in inconsistent behavior across xpad, hid-sony, hid-wiimote and
other drivers. Moving forward new drivers should use LED_FUNCTION_PLAYERx.
Note: management of Player IDs is left to user space, though a kernel
driver may pick a default value.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The DualSense lightbar has so far been supported, but it was not yet
adjustable from user space. This patch exposes it through a multi-color
LED.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Firmware link offload monitoring can be made to work in 3/4 cases by
switching on firmware feature bit WLANACTIVE_OFFLOAD
- Secure power-save on
- Secure power-save off
- Open power-save on
However, with an open AP if we switch off power-saving - thus never
entering Beacon Mode Power Save - BMPS, firmware never forwards loss
of beacon upwards.
We had hoped that WLANACTIVE_OFFLOAD and some fixes for sequence numbers
would unblock this but, it hasn't and further investigation is required.
Its possible to have a complete set of Secure power-save on/off and Open
power-save on/off provided we use Linux' link monitoring mechanism.
While we debug the Open AP failure we need to fix upstream.
This reverts commit c973fdad79f6eaf247d48b5fc77733e989eb01e1.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211025093037.3966022-2-bryan.odonoghue@linaro.org
If the system is resumed because of an incoming packet, the wcn36xx RX
interrupts is fired before actual resuming of the wireless/mac80211
stack, causing any received packets to be simply dropped. E.g. a ping
request causes a system resume, but is dropped and so never forwarded
to the IP stack.
This change fixes that, disabling DMA interrupts on suspend to no pass
packets until mac80211 is resumed and ready to handle them.
Note that it's not incompatible with RX irq wake.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1635150496-19290-1-git-send-email-loic.poulain@linaro.org
The firmware is offering features such as ARP offload, for which
firmware crafts its own (QoS)packets without waking up the host.
Point is that the sequence numbers generated by the firmware are
not in sync with the host mac80211 layer and can cause packets
such as firmware ARP reponses to be dropped by the AP (too old SN).
To fix this we need to let the firmware manages the sequence
numbers by its own (except for QoS null frames). There is a SN
counter for each QoS queue and one global/baseline counter for
Non-QoS.
Fixes: 84aff52e4f ("wcn36xx: Use sequence number allocated by mac80211")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1635150336-18736-1-git-send-email-loic.poulain@linaro.org
This is essentially exactly following the dma_wmb()/dma_rmb() usage
instructions in Documentation/memory-barriers.txt.
The theoretical races here are:
1. DXE (the DMA Transfer Engine in the Wi-Fi subsystem) seeing the
dxe->ctrl & WCN36xx_DXE_CTRL_VLD write before the dxe->dst_addr_l
write, thus performing DMA into the wrong address.
2. CPU reading dxe->dst_addr_l before DXE unsets dxe->ctrl &
WCN36xx_DXE_CTRL_VLD. This should generally be harmless since DXE
doesn't write dxe->dst_addr_l (no risk of freeing the wrong skb).
Fixes: 8e84c25821 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Benjamin Li <benl@squareup.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211023001528.3077822-1-benl@squareup.com
All wcn36xx controllers are supposed to support HT40 (and SGI40),
This doubles the maximum bitrate/throughput with compatible APs.
Tested with wcn3620 & wcn3680B.
Cc: stable@vger.kernel.org
Fixes: 8e84c25821 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1634737133-22336-1-git-send-email-loic.poulain@linaro.org
On an open AP when you pull the plug on the AP, if we are not already in
BMPS mode then the firmware will not generate a disconnection event.
Instead we need to monitor for failure to enter BMPS and treat a string of
failures as connection loss.
Secure AP connections don't appear to demonstrate this behavior so the
work-around is limited to open APs only.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211022140447.2846248-2-bryan.odonoghue@linaro.org
WCNSS RX DMA transfer support is limited to 3872 bytes, which is
enough for simple MPDUs (single MSDU), but not enough for cases
with A-MSDU (depending on max AMSDU size or max MPDU size).
In that case the MPDU is spread over multiple transfers, with the
first transfer containing the MPDU header and (at least) the first
A-MSDU subframe and additional transfer(s) containing the following
A-MSDUs. This can be handled with a series of flags to tagging the
first and last A-MSDU transfers.
In that case we have to bufferize and re-linearize the A-MSDU buffers
into a proper MPDU skb before forwarding to mac80211 (in the same way
as it is done in ath10k).
This change also includes sanity check of the buffer descriptor to
prevent skb overflow.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1634557705-11120-1-git-send-email-loic.poulain@linaro.org
Until now, offload scanning for 5Ghz channels was considered broken.
However it was mostly a driver issue, caused by bad reporting of the
beacons/probe-resp bands and frequencies, which has been fixed.
We can now allow offload scan for 5GHz band, this reduces the scanning
time comparing to software driven scanning.
Note that offloaded scan is limited to 48 channels, check for this.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1634554678-7993-2-git-send-email-loic.poulain@linaro.org
For packets originating from hardware scan, the channel and band is
included in the buffer descriptor (bd->rf_band & bd->rx_ch).
For 2Ghz band the channel value is directly reported in the 4-bit
rx_ch field. For 5Ghz band, the rx_ch field contains a mapping
index (given the 4-bit limitation).
The reserved0 value field is also used to extend 4-bit mapping to
5-bit mapping to support more than 16 5Ghz channels.
This change adds correct reporting of the frequency/band, that is
used in scan mechanism. And is required for 5Ghz hardware scan
support.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1634554678-7993-1-git-send-email-loic.poulain@linaro.org
coccicheck complains about the use of snprintf() in sysfs show
functions:
WARNING use scnprintf or sprintf
Use sysfs_emit instead of scnprintf or sprintf makes more sense.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Ye Guojin <ye.guojin@zte.com.cn>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211022090438.1065286-1-ye.guojin@zte.com.cn
The pointer rtwsta is dereferencing pointer sta before sta is being null
checked. Fix this by assigning sta->drv_priv to rtwsta only if sta is not
NULL, otherwise just NULL.
Fixes: e3ec7017f6 ("rtw89: add Realtek 802.11ax driver")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211022061242.8383-1-pkshih@realtek.com
It seems to me when pub_cfg->grp0 + pub_cfg->grp1 != pub_cfg->pub_max is true,
it should return -EFAULT rather than 0. Otherwise, the function doesn't need
to exist.
Signed-off-by: Kevin Lo <kevlo@kevlo.org>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YXEJey8lKksAZif4@ns.kevlo.org
This patch fixes the following Coccinelle warning:
drivers/net/wireless/realtek/rtw89/rtw8852a.c:753:
WARNING possible condition with no effect (if == else)
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211021042035.1042463-1-lv.ruyi@zte.com.cn
* Support for 160MHz in ranging measurements;
* Some fixes in HE capabilities;
* Fixes in vendor specific capabilities;
* Add the PC of both processors in error dumps;
* Small fix in TDLS;
* Code to sanitize firmware dumps;
* Updates for new FW rate and flags format;
* Continue implementation of new rate and flags format in the FW APIs;
* Some fixes for BZ family initialization;
* Fix session protection in some scenarios;
* Some debugging improvements;
* Fix BT-coex priority;
* Improve PS-poll timeout detection;
* Some other small fixes, clean-ups and improvements.
-----BEGIN PGP SIGNATURE-----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=nyT4
-----END PGP SIGNATURE-----
Merge tag 'iwlwifi-next-for-kalle-2021-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
iwlwifi patches for v5.16
* Support for 160MHz in ranging measurements;
* Some fixes in HE capabilities;
* Fixes in vendor specific capabilities;
* Add the PC of both processors in error dumps;
* Small fix in TDLS;
* Code to sanitize firmware dumps;
* Updates for new FW rate and flags format;
* Continue implementation of new rate and flags format in the FW APIs;
* Some fixes for BZ family initialization;
* Fix session protection in some scenarios;
* Some debugging improvements;
* Fix BT-coex priority;
* Improve PS-poll timeout detection;
* Some other small fixes, clean-ups and improvements.
# gpg: Signature made Fri 22 Oct 2021 11:28:43 AM EEST
# gpg: using RSA key 1772CD7E06F604F5A6EBCB26A1479CA21A3CC5FA
# gpg: Good signature from "Luciano Roth Coelho (Luca) <luca@coelho.fi>" [full]
# gpg: aka "Luciano Roth Coelho (Intel) <luciano.coelho@intel.com>" [full]
Pass the correct length to nvmet_tcp_verify_hdgst, which is the pdu
header length. This fixes a wrong behaviour where header digest
verification passes although the digest is wrong.
Signed-off-by: Amit Engel <amit.engel@dell.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Adds the proper MODULE_IMPORT_NS(DMA_BUF) line to the file to get it to
build properly.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/r/20211027154843.622961fd@canb.auug.org.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add the missing endpoint max-packet sanity check to probe() to avoid
division by zero in alloc_stream_buffers() in case a malicious device
has broken descriptors (or when doing descriptor fuzz testing).
Note that USB core will reject URBs submitted for endpoints with zero
wMaxPacketSize but that drivers doing packet-size calculations still
need to handle this (cf. commit 2548288b4f ("USB: Fix: Don't skip
endpoint descriptors with maxpacket=0")).
Fixes: 63978ab3e3 ("sound: add Edirol UA-101 support")
Cc: stable@vger.kernel.org # 2.6.34
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211026095401.26522-1-johan@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
'dma_mem->bitmap' is a bitmap. So use 'bitmap_zalloc()' to simplify code,
improve the semantic and avoid some open-coded arithmetic in allocator
arguments.
Also change the corresponding 'kfree()' into 'bitmap_free()' to keep
consistency.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Christoph Hellwig <hch@lst.de>
In an effort to avoid open-coded arithmetic in the kernel [1], use the
flex_array_size() and struct_size() helpers instead of an open-coded
calculation.
[1] https://github.com/KSPP/linux/issues/160
Signed-off-by: Len Baker <len.baker@gmx.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Register the discovery subsystem as the 'current' discovery subsystem,
and add a new discovery log page entry for it.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
