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A peer can limit the number of subframes it can handle in a
single A-MSDU. Honor this limit.
Note that the smallest limit is 8, and we are very unlikely to reach
that limit. So this isn't really a big deal.
Fixes: a6d5e32f247c ("iwlwifi: mvm: send large SKBs to the transport")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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When we receive a RMI4 report, we should not unconditionally send an
input_sync event. Instead, we should let the rmi4 transport layer do it
for us.
This fixes a situation where we might receive X in a report and the rest
in a subsequent one. And this messes up user space.
Link: https://bugs.freedesktop.org/show_bug.cgi?id=100436
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Oscar Morante <spacepluk@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Currently, a BA session is opened when the tx traffic exceeds
10 frames per second. As a result of inter-op problems with some
APs, add a condition to open BA session only when station is
already authorized.
Fixes: 482e48440a0e ("iwlwifi: mvm: change open and close criteria of a BA session")
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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According to [1] and also seemingly agreed by [2], the Scan Time usage
(0x0D 0x56) is a report level usage, not a contact level usage.
However, the hid-multitouch driver currently includes HID_DG_SCANTIME
when calculating `td->last_slot_field', which may lead to
mt_complete_slot() being prematurely called in certain cases (e.g. when
each touch input report includes more than one contact and the Scan Time
usage appears before any contact logical collection).
This patch fixes the issue by skipping mt_store_field() on
HID_DG_SCANTIME, similar to how HID_DG_CONTACTCOUNT and
HID_DG_CONTACTMAX are handled.
[1] https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-precision-touchpad-required-hid-top-level-collections#windows-precision-touchpad-input-reports
[2] https://patchwork.kernel.org/patch/1742181/
Fixes: 29cc309d8bf19 ("HID: hid-multitouch: forward MSC_TIMESTAMP")
Signed-off-by: Ben Chan <benchan@chromium.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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hid_have_special_driver[]
Delcom offers different types of products sharing the same USB VID/PID
as the Visual Signal Indicator. Other products need to be handled by
HID Generic what's not possible currently because USB VID/PID are
listed in hid_have_special_driver[].
After e04a0442d33b ("HID: core: remove the absolute need of
hid_have_special_driver[]") we can now remove the Delcom entry.
If a Visual Signal Indicator device is plugged-in, HID core
will start a reprobe if hid-led driver is available.
If another device with same USB VID/PID is plugged-in, then hid-led
can be blacklisted and HID Generic handles the device.
Thanks to Delcom for providing test devices.
Reported-by: Douglas Lovett <dlovett@delcomproducts.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Using the power supply APIs requires selecting the appropriate
Kconfig symbol, otherwise we get this build failure:
drivers/hid/hid-steam.o: In function `steam_unregister':
hid-steam.c:(.text+0x1cc): undefined reference to `power_supply_unregister'
drivers/hid/hid-steam.o: In function `steam_battery_get_property':
hid-steam.c:(.text+0x2d2): undefined reference to `power_supply_get_drvdata'
drivers/hid/hid-steam.o: In function `steam_raw_event':
hid-steam.c:(.text+0xcba): undefined reference to `power_supply_changed'
drivers/hid/hid-steam.o: In function `steam_register':
hid-steam.c:(.text+0x13e3): undefined reference to `power_supply_register'
hid-steam.c:(.text+0x13fe): undefined reference to `power_supply_powers'
Fixes: f82719790751 ("HID: steam: add battery device.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The subtraction of two struct ieee80211_wmm_rule pointers leaves a result
that is automatically scaled down by the size of the size of pointed-to
type, hence the division by sizeof(struct ieee80211_wmm_rule) is
bogus and should be removed.
Detected by CoverityScan, CID#1467777 ("Extra sizeof expression")
Fixes: 77e30e10ee28 ("iwlwifi: mvm: query regdb for wmm rule if needed")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Init hci_uart->init_ready so that hci_uart_init_ready() works properly.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Since commit 85ae91133152 ("HID: i2c-hid: remove custom locking from
i2c_hid_open/close") there are no more users of i2c_hid_open_mut.
Remove the unused mutex.
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Jiri Kosina <jikos@kernel.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Make hci_uart_register_device() and hci_uart_unregister_device() call
serdev_device_close()/open() themselves instead of relying on the various
hci_uart drivers to do this for them.
Besides reducing code complexity, this also ensures correct error checking
of serdev_device_open(), which was missing in a few drivers.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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For reasons explained in detail in commit 3611f4d2a5e0 ("hci_ldisc:
fix null pointer deref") the hci_uart_close() functions sets
hci_dev->flush to NULL.
But the device may be re-opened after a close, this commit restores the
hci_dev->flush callback on open().
Note this commit also moves the nearly empty defition of hci_uart_open()
a bit down in the file to avoid the need for forward declaring
hci_uart_flush().
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Make sure the rx_allocator worker is canceled before running the
rx_init routine. rx_init frees and re-allocates all rxb's pages. The
rx_allocator worker also allocates pages for the used rxb's. Running
rx_init and rx_allocator simultaniously causes a kernel panic. Fix
that by canceling the work in rx_init.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Our hardware has a limited amount of buffer descriptors
for each Tx packet. Because of that, there is a short
piece of code that makes sure that that we don't push too
many subframes in an A-MSDU because of subframes needs 2
buffer descriptors. This code also takes into account the
number of fragment of the skb since we also need a buffer
descriptor for each fragment in the skb.
This piece of code though didn't check that the resulting
number of subframes wasn't 0.
A user reported that using NFS client, he could get skbs
that are so fragmented that the code mentioned above
returned 0 for the number of subframes making
skb_gso_segment fail and subconsequently iwlwifi would WARN.
Fix this by make sure that num_subframes is at least 1.
This fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=199209
Fixes: a6d5e32f247c ("iwlwifi: mvm: send large SKBs to the transport")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Some versions of the FW don't support channel switch in TDLS.
Add a condition that checks it.
Fixes: 307e47235a10 ("iwlwifi: mvm: configure TDLS peers to FW")
Signed-off-by: Aviya Erenfeld <aviya.erenfeld@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Re-use kstrtol_from_user() instead of open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Re-use kstrtobool_from_user() instead of open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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This patch fixes the following warning during boot:
do not call blocking ops when !TASK_RUNNING; state=1 set at
[<(ptrval)>] qca_setup+0x194/0x750 [hci_uart]
WARNING: CPU: 2 PID: 1878 at kernel/sched/core.c:6135
__might_sleep+0x7c/0x88
In qca_set_baudrate(), the current task state is set to
TASK_UNINTERRUPTIBLE before going to sleep for 300ms. It was then
restored to TASK_INTERRUPTIBLE. This patch sets the current task state
back to TASK_RUNNING instead.
Signed-off-by: Thierry Escande <thierry.escande@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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In some cases we may get from FW errored frames with
UNKNOWN security type.
This may happen in unsecured aggregation flow, where
the first packet had a CRC error in the WEP bit, which
was followed by a failure to decrypt and was dropped.
The next frames in the aggregation "inherit" the bad metadata
of the first packet.
Make sure to drop such frames since RADA and other offloads
will not operate correctly which may have unexpected results.
In case of AP it also causes to TX AMSDU frames to the peers,
resulting with assert 0x104B.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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This is useful at least for multipath testing.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
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With recent CQ handling improvements we can now move the locking into
__nvme_submit_cmd. Also remove the local tail variable to make the code
more obvious, remove the __ prefix in the name, and fix the comments
describing the function.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
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The block layer's timeout handling currently prevents drivers from
completing commands outside the timeout callback once blk-mq decides
they've expired. If a device breaks, this could potentially create many
thousands of timed out commands. There's nothing of value to be gleaned
from observing each of those messages, so this patch adds a rate limit
on them.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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The current checks for whether a new controller request "matches" an
existing controller ignores controller state and checks identity strings.
There are cases where an existing controller may be in its last steps of
deletion when they are "matched" by a new connection.
Change the behavior so that the new connection ignores controllers that
are deleted.
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU fix from Paul E. McKenney:
"This additional v4.18 pull request contains a single commit that fell
through the cracks:
Provide early rcu_cpu_starting() callback for the benefit of the
x86/mtrr code, which needs RCU to be available on incoming CPUs
earlier than has been the case in the past."
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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We have several Lenovo AIOs like M810z, M820z and M920z, they have
the same design for mic-mute hotkey and led and they use the same
codec with the same pin configuration, so use the pin conf table to
apply fix to all of them.
Fixes: 29693efcea0f ("ALSA: hda - Fix micmute hotkey problem for a lenovo AIO machine")
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"We are switching a bunch of Lenovo devices with Synaptics touchpads
from PS/2 emulation over to native RMI/SMbus.
Given that all commits are marked for stable there is no point
delaying them till next release"
[ Also fix a too-small stack array for i2c communication in elan driver ]
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c_smbus - fix corrupted stack
Input: synaptics - add Lenovo 80 series ids to SMBus
Input: synaptics - add Intertouch support on X1 Carbon 6th and X280
Input: synaptics - Lenovo Thinkpad X1 Carbon G5 (2017) with Elantech trackpoints should use RMI
Input: synaptics - Lenovo Carbon X1 Gen5 (2017) devices should use RMI
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as it is, the logics in native io_submit(2) is "if asked for
more than LONG_MAX/sizeof(pointer) iocbs to submit, don't
bother with more than LONG_MAX/sizeof(pointer)" (i.e.
512M requests on 32bit and 1E requests on 64bit) while
compat io_submit(2) goes with "stop after the first
PAGE_SIZE/sizeof(pointer) iocbs", i.e. 1K or so. Which is
* inconsistent
* *way* too much in native case
* possibly too little in compat one
and
* wrong anyway, since the natural point where we
ought to stop bothering is ctx->nr_events
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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get rid of insane "copy array of 32bit pointers into an array of
native ones" glue.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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The logics for 'avail' is
* not past the tail of cyclic buffer
* no more than asked
* not past the end of buffer
* not past the end of a page
Unobfuscate the last part.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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same way
... so just make them return 0 when caller does not need to destroy iocb
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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We really want iocb out of io_cancel(2) reach before we start tearing
it down.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://people.freedesktop.org/~gabbayo/linux into drm-next
- Build amdkfd's related files inside amdgpu only if amdkfd is built
- Fix compile warning
- Print info message in case ASIC is not supported by amdkfd
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180528110435.GA17960@odedg-x270
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
Add more HW overlays support
- It enables hardware overlay number 4 and 5. For this,
this patch series adds required clocks.
Several fixups
- Fix default value of zpos according to real hardware overlay number.
- Fix error value of exynos_Drm_crtc_get_by_type function correctly.
- Fix static checker warning of scaler_task_done function.
- Fix signedness bug in fimc_setup_clocks function.
One cleanup
- Disable framedone interrupt of DSI device which is not required.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1527229919-25665-1-git-send-email-inki.dae@samsung.com
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into drm-fixes
One last fix for 4.17. Fix a suspend regression in DC.
* 'drm-fixes-4.17' of git://people.freedesktop.org/~agd5f/linux:
drm/amd/display: Fix BUG_ON during CRTC atomic check update
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
core: Add 220us psr setup time (Dhinakaran)
omap: Fix NULL deref (Tomi)
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
* tag 'drm-misc-fixes-2018-05-29' of git://anongit.freedesktop.org/drm/drm-misc:
drm/omap: fix NULL deref crash with SDI displays
drm/psr: Fix missed entry in PSR setup time table.
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As we keep the offloaded TC rules for NIC and e-switch in two different
places, make sure to return the number of offloaded flows according
to the use-case and not blindly from the priv.
Fixes: 655dc3d2b91b ('net/mlx5e: Use shared table for offloaded TC eswitch flows')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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When mlx5_fpga_conn_unmap_buf is called buf->sg[0].size
should equal the actual buffer size, not the message size.
Otherwise we will trigger the following dma debug warning
"DMA-API: device driver frees DMA memory with different size"
Fixes: 537a50574175 ('net/mlx5: FPGA, Add high-speed connection routines')
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Properly initialize dma direction on fpga conn send.
Do not rely on dma_dir == 0 (DMA_BIDIRECTIONAL).
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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In the case that the reported max number of QPs capability
equals to zero, abort FPGA init.
Signed-off-by: Yevgeny Kliteynik <kliteyn@mellanox.com>
Signed-off-by: Adi Nissim <adin@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Add print of the following values on init:
1. ieee vendor id
2. sandbox product id
3. sandbox product version
Signed-off-by: Ilan Tayari <ilant@mellanox.com>
Signed-off-by: Adi Nissim <adin@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Add device name for Mellanox FPGA devices.
Signed-off-by: Ilan Tayari <ilant@mellanox.com>
Signed-off-by: Adi Nissim <adin@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Add doxygen comments for enum mlx5_fpga_access_type.
Signed-off-by: Ilan Tayari <ilant@mellanox.com>
Signed-off-by: Adi Nissim <adin@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Call trace:
[<ffffff9203a8d7a8>] dump_backtrace+0x0/0x428
[<ffffff9203a8dbf8>] show_stack+0x28/0x38
[<ffffff920409bfb8>] dump_stack+0xd4/0x124
[<ffffff9203d187e8>] print_address_description+0x68/0x258
[<ffffff9203d18c00>] kasan_report.part.2+0x228/0x2f0
[<ffffff9203d1927c>] kasan_report+0x5c/0x70
[<ffffff9203d1776c>] check_memory_region+0x12c/0x1c0
[<ffffff9203d17cdc>] memcpy+0x34/0x68
[<ffffff9203d75348>] xattr_getsecurity+0xe0/0x160
[<ffffff9203d75490>] vfs_getxattr+0xc8/0x120
[<ffffff9203d75d68>] getxattr+0x100/0x2c8
[<ffffff9203d76fb4>] SyS_fgetxattr+0x64/0xa0
[<ffffff9203a83f70>] el0_svc_naked+0x24/0x28
If user get root access and calls security.selinux setxattr() with an
embedded NUL on a file and then if some process performs a getxattr()
on that file with a length greater than the actual length of the string,
it would result in a panic.
To fix this, add the actual length of the string to the security context
instead of the length passed by the userspace process.
Signed-off-by: Sachin Grover <sgrover@codeaurora.org>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <paul@paul-moore.com>
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix for potential Spectre vector in the new query uAPI
- Fix NULL pointer deref (FDO #106559)
- DMI fix to hide LVDS for Radiant P845 (FDO #105468)
* tag 'drm-intel-fixes-2018-05-29' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915/query: nospec expects no more than an unsigned long
drm/i915/query: Protect tainted function pointer lookup
drm/i915/lvds: Move acpi lid notification registration to registration phase
drm/i915: Disable LVDS on Radiant P845
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At the mentioned address there's nothing found. By searching information
on the controller chip still can be found, so update the link to the
resulting page.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Celes has newer touch controller (compared to the controllers used in
older BayTrail-based devices) and so uses the same button mapping as
Samus.
This fixes the issue with mouse button being stuck in pressed state
after the first click.
Reported-by: Sultan Alsawaf <sultanxda@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Benson Leung <bleung@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma for-next
Leon Romanovsky says:
====================
Introduce new internal to mlx5 CQE format - mini-CQE. It is a CQE in
compressed form that holds data needed to extra a single full CQE.
It is a stride index, byte count and packet checksum.
====================
* mini_cqe:
IB/mlx5: Introduce a new mini-CQE format
IB/mlx5: Refactor CQE compression response
net/mlx5: Exposing a new mini-CQE format
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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This once might have made sense when cache.c was in a different module
from device.c, but today it just obfuscation. Get rid of the wrappers
and call roge_gid_mgmt_init()/cleanup() directly.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
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The new mini-CQE format includes the stride index, byte count and
packet checksum.
Stride index is needed for striding WQ feature.
This patch exposes this capability and enables its setting
via mlx5 UHW data as part of query device and cq creation.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Refactor CQE compression response to be fully set only
when it`s really supported. There is no change from user
perspective because anyway resp.cqe_comp_caps.max_num was
set to zero.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>W
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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