<feed xmlns='http://www.w3.org/2005/Atom'>
<title>wireguard-linux/drivers/usb/gadget/function, branch jd/unified-crypt-queue</title>
<subtitle>WireGuard for the Linux kernel</subtitle>
<id>https://git.zx2c4.com/wireguard-linux/atom/drivers/usb/gadget/function?h=jd%2Funified-crypt-queue</id>
<link rel='self' href='https://git.zx2c4.com/wireguard-linux/atom/drivers/usb/gadget/function?h=jd%2Funified-crypt-queue'/>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/'/>
<updated>2020-04-03T00:03:53Z</updated>
<entry>
<title>Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi</title>
<updated>2020-04-03T00:03:53Z</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2020-04-03T00:03:53Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=79f51b7b9c4719303f758ae8406c4e5997ed6aa3'/>
<id>urn:sha1:79f51b7b9c4719303f758ae8406c4e5997ed6aa3</id>
<content type='text'>
Pull SCSI updates from James Bottomley:
 "This series has a huge amount of churn because it pulls in Mauro's doc
  update changing all our txt files to rst ones.

  Excluding that, we have the usual driver updates (qla2xxx, ufs, lpfc,
  zfcp, ibmvfc, pm80xx, aacraid), a treewide update for scnprintf and
  some other minor updates.

  The major core change is Hannes moving functions out of the aacraid
  driver and into the core"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (223 commits)
  scsi: aic7xxx: aic97xx: Remove FreeBSD-specific code
  scsi: ufs: Do not rely on prefetched data
  scsi: dc395x: remove dc395x_bios_param
  scsi: libiscsi: Fix error count for active session
  scsi: hpsa: correct race condition in offload enabled
  scsi: message: fusion: Replace zero-length array with flexible-array member
  scsi: qedi: Add PCI shutdown handler support
  scsi: qedi: Add MFW error recovery process
  scsi: ufs: Enable block layer runtime PM for well-known logical units
  scsi: ufs-qcom: Override devfreq parameters
  scsi: ufshcd: Let vendor override devfreq parameters
  scsi: ufshcd: Update the set frequency to devfreq
  scsi: ufs: Resume ufs host before accessing ufs device
  scsi: ufs-mediatek: customize the delay for enabling host
  scsi: ufs: make HCE polling more compact to improve initialization latency
  scsi: ufs: allow custom delay prior to host enabling
  scsi: ufs-mediatek: use common delay function
  scsi: ufs: introduce common and flexible delay function
  scsi: ufs: use an enum for host capabilities
  scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc()
  ...
</content>
</entry>
<entry>
<title>Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</title>
<updated>2020-03-30T23:17:15Z</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2020-03-30T23:17:15Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=4b9fd8a829a1eec7442e38afff21d610604de56a'/>
<id>urn:sha1:4b9fd8a829a1eec7442e38afff21d610604de56a</id>
<content type='text'>
Pull locking updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Continued user-access cleanups in the futex code.

   - percpu-rwsem rewrite that uses its own waitqueue and atomic_t
     instead of an embedded rwsem. This addresses a couple of
     weaknesses, but the primary motivation was complications on the -rt
     kernel.

   - Introduce raw lock nesting detection on lockdep
     (CONFIG_PROVE_RAW_LOCK_NESTING=y), document the raw_lock vs. normal
     lock differences. This too originates from -rt.

   - Reuse lockdep zapped chain_hlocks entries, to conserve RAM
     footprint on distro-ish kernels running into the "BUG:
     MAX_LOCKDEP_CHAIN_HLOCKS too low!" depletion of the lockdep
     chain-entries pool.

   - Misc cleanups, smaller fixes and enhancements - see the changelog
     for details"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits)
  fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t
  thermal/x86_pkg_temp: Make pkg_temp_lock a raw_spinlock_t
  Documentation/locking/locktypes: Minor copy editor fixes
  Documentation/locking/locktypes: Further clarifications and wordsmithing
  m68knommu: Remove mm.h include from uaccess_no.h
  x86: get rid of user_atomic_cmpxchg_inatomic()
  generic arch_futex_atomic_op_inuser() doesn't need access_ok()
  x86: don't reload after cmpxchg in unsafe_atomic_op2() loop
  x86: convert arch_futex_atomic_op_inuser() to user_access_begin/user_access_end()
  objtool: whitelist __sanitizer_cov_trace_switch()
  [parisc, s390, sparc64] no need for access_ok() in futex handling
  sh: no need of access_ok() in arch_futex_atomic_op_inuser()
  futex: arch_futex_atomic_op_inuser() calling conventions change
  completion: Use lockdep_assert_RT_in_threaded_ctx() in complete_all()
  lockdep: Add posixtimer context tracing bits
  lockdep: Annotate irq_work
  lockdep: Add hrtimer context tracing bits
  lockdep: Introduce wait-type checks
  completion: Use simple wait queues
  sched/swait: Prepare usage in completions
  ...
</content>
</entry>
<entry>
<title>Merge tag 'usb-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb</title>
<updated>2020-03-30T20:54:11Z</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2020-03-30T20:54:11Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=db34c5ffee649e2c4c870d1031a996398a187cf5'/>
<id>urn:sha1:db34c5ffee649e2c4c870d1031a996398a187cf5</id>
<content type='text'>
Pull USB / PHY updates from Greg KH:
 "Here are the big set of USB and PHY driver patches for 5.7-rc1.

  Nothing huge here, some new PHY drivers, loads of USB gadget fixes and
  updates, xhci updates, usb-serial driver updates and new device ids,
  and other minor things. Full details in the shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'usb-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (239 commits)
  USB: cdc-acm: restore capability check order
  usb: cdns3: make signed 1 bit bitfields unsigned
  usb: gadget: fsl: remove unused variable 'driver_desc'
  usb: gadget: f_fs: Fix use after free issue as part of queue failure
  usb: typec: Correct the documentation for typec_cable_put()
  USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback
  USB: serial: option: add Wistron Neweb D19Q1
  USB: serial: option: add BroadMobi BM806U
  USB: serial: option: add support for ASKEY WWHC050
  usb: core: Add ACPI support for USB interface devices
  driver core: platform: Reimplement devm_platform_ioremap_resource
  usb: dwc2: convert to devm_platform_get_and_ioremap_resource
  usb: host: hisilicon: convert to devm_platform_get_and_ioremap_resource
  usb: host: xhci-plat: convert to devm_platform_get_and_ioremap_resource
  drivers: provide devm_platform_get_and_ioremap_resource()
  phy: qcom-qusb2: Add new overriding tuning parameters in QUSB2 V2 PHY
  phy: qcom-qusb2: Add support for overriding tuning parameters in QUSB2 V2 PHY
  dt-bindings: phy: qcom-qusb2: Add support for overriding Phy tuning parameters
  phy: qcom-qusb2: Add generic QUSB2 V2 PHY support
  dt-bindings: phy: qcom,qusb2: Add compatibles for QUSB2 V2 phy and SC7180
  ...
</content>
</entry>
<entry>
<title>Merge tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media</title>
<updated>2020-03-30T20:42:05Z</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2020-03-30T20:42:05Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=063d1942247668eb0bb800aef5afbbef337344be'/>
<id>urn:sha1:063d1942247668eb0bb800aef5afbbef337344be</id>
<content type='text'>
Pull media updates from Mauro Carvalho Chehab:

 - New sensor driver: imx219

 - Support for some new pixelformats

 - Support for Sun8i SoC

 - Added more codecs to meson vdec driver

 - Prepare for removing the legacy usbvision driver by moving it to
   staging. This driver has issues and use legacy core APIs. If nobody
   steps up to address those, it is time for its retirement.

 - Several cleanups and improvements on drivers, with the addition of
   new supported boards

* tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (236 commits)
  media: venus: firmware: Ignore secure call error on first resume
  media: mtk-vpu: load vpu firmware from the new location
  media: i2c: video-i2c: fix build errors due to 'imply hwmon'
  media: MAINTAINERS: add myself to co-maintain Hantro G1/G2 for i.MX8MQ
  media: hantro: add initial i.MX8MQ support
  media: dt-bindings: Document i.MX8MQ VPU bindings
  media: vivid: fix incorrect PA assignment to HDMI outputs
  media: hantro: Add linux-rockchip mailing list to MAINTAINERS
  media: cedrus: h264: Fix 4K decoding on H6
  media: siano: Use scnprintf() for avoiding potential buffer overflow
  media: rc: Use scnprintf() for avoiding potential buffer overflow
  media: allegro: create new struct for channel parameters
  media: allegro: move mail definitions to separate file
  media: allegro: pass buffers through firmware
  media: allegro: verify source and destination buffer in VCU response
  media: allegro: handle dependency of bitrate and bitrate_peak
  media: allegro: read bitrate mode directly from control
  media: allegro: make QP configurable
  media: allegro: make frame rate configurable
  media: allegro: skip filler data if possible
  ...
</content>
</entry>
<entry>
<title>usb: gadget: f_fs: Fix use after free issue as part of queue failure</title>
<updated>2020-03-26T14:05:44Z</updated>
<author>
<name>Sriharsha Allenki</name>
<email>sallenki@codeaurora.org</email>
</author>
<published>2020-03-26T11:56:20Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=f63ec55ff904b2f2e126884fcad93175f16ab4bb'/>
<id>urn:sha1:f63ec55ff904b2f2e126884fcad93175f16ab4bb</id>
<content type='text'>
In AIO case, the request is freed up if ep_queue fails.
However, io_data-&gt;req still has the reference to this freed
request. In the case of this failure if there is aio_cancel
call on this io_data it will lead to an invalid dequeue
operation and a potential use after free issue.
Fix this by setting the io_data-&gt;req to NULL when the request
is freed as part of queue failure.

Fixes: 2e4c7553cd6f ("usb: gadget: f_fs: add aio support")
Signed-off-by: Sriharsha Allenki &lt;sallenki@codeaurora.org&gt;
CC: stable &lt;stable@vger.kernel.org&gt;
Reviewed-by: Peter Chen &lt;peter.chen@nxp.com&gt;
Link: https://lore.kernel.org/r/20200326115620.12571-1-sallenki@codeaurora.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
</entry>
<entry>
<title>completion: Use simple wait queues</title>
<updated>2020-03-21T15:00:24Z</updated>
<author>
<name>Thomas Gleixner</name>
<email>tglx@linutronix.de</email>
</author>
<published>2020-03-21T11:26:00Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=a5c6234e10280b3ec65e2410ce34904a2580e5f8'/>
<id>urn:sha1:a5c6234e10280b3ec65e2410ce34904a2580e5f8</id>
<content type='text'>
completion uses a wait_queue_head_t to enqueue waiters.

wait_queue_head_t contains a spinlock_t to protect the list of waiters
which excludes it from being used in truly atomic context on a PREEMPT_RT
enabled kernel.

The spinlock in the wait queue head cannot be replaced by a raw_spinlock
because:

  - wait queues can have custom wakeup callbacks, which acquire other
    spinlock_t locks and have potentially long execution times

  - wake_up() walks an unbounded number of list entries during the wake up
    and may wake an unbounded number of waiters.

For simplicity and performance reasons complete() should be usable on
PREEMPT_RT enabled kernels.

completions do not use custom wakeup callbacks and are usually single
waiter, except for a few corner cases.

Replace the wait queue in the completion with a simple wait queue (swait),
which uses a raw_spinlock_t for protecting the waiter list and therefore is
safe to use inside truly atomic regions on PREEMPT_RT.

There is no semantical or functional change:

  - completions use the exclusive wait mode which is what swait provides

  - complete() wakes one exclusive waiter

  - complete_all() wakes all waiters while holding the lock which protects
    the wait queue against newly incoming waiters. The conversion to swait
    preserves this behaviour.

complete_all() might cause unbound latencies with a large number of waiters
being woken at once, but most complete_all() usage sites are either in
testing or initialization code or have only a really small number of
concurrent waiters which for now does not cause a latency problem. Keep it
simple for now.

The fixup of the warning check in the USB gadget driver is just a straight
forward conversion of the lockless waiter check from one waitqueue type to
the other.

Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Signed-off-by: Peter Zijlstra (Intel) &lt;peterz@infradead.org&gt;
Reviewed-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Reviewed-by: Davidlohr Bueso &lt;dbueso@suse.de&gt;
Reviewed-by: Joel Fernandes (Google) &lt;joel@joelfernandes.org&gt;
Acked-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Link: https://lkml.kernel.org/r/20200321113242.317954042@linutronix.de
</content>
</entry>
<entry>
<title>scsi: treewide: Consolidate {get,put}_unaligned_[bl]e24() definitions</title>
<updated>2020-03-17T02:08:34Z</updated>
<author>
<name>Bart Van Assche</name>
<email>bvanassche@acm.org</email>
</author>
<published>2020-03-13T20:31:00Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=a7afff31d56db22647251d76d6af030cd47bd97e'/>
<id>urn:sha1:a7afff31d56db22647251d76d6af030cd47bd97e</id>
<content type='text'>
Move the get_unaligned_be24(), get_unaligned_le24() and
put_unaligned_le24() definitions from various drivers into
include/linux/unaligned/generic.h. Add a put_unaligned_be24()
implementation.

Link: https://lore.kernel.org/r/20200313203102.16613-4-bvanassche@acm.org
Cc: Keith Busch &lt;kbusch@kernel.org&gt;
Cc: Sagi Grimberg &lt;sagi@grimberg.me&gt;
Cc: Jens Axboe &lt;axboe@fb.com&gt;
Cc: Harvey Harrison &lt;harvey.harrison@gmail.com&gt;
Cc: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
Cc: Ingo Molnar &lt;mingo@kernel.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: H. Peter Anvin &lt;hpa@zytor.com&gt;
Cc: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Reviewed-by: Christoph Hellwig &lt;hch@lst.de&gt;
Reviewed-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Reviewed-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt; # For drivers/usb
Reviewed-by: Felipe Balbi &lt;balbi@kernel.org&gt; # For drivers/usb/gadget
Signed-off-by: Bart Van Assche &lt;bvanassche@acm.org&gt;
Signed-off-by: Martin K. Petersen &lt;martin.petersen@oracle.com&gt;
</content>
</entry>
<entry>
<title>media: gadget: uvc: rename VFL_TYPE_GRABBER to _VIDEO</title>
<updated>2020-02-24T15:52:45Z</updated>
<author>
<name>Hans Verkuil</name>
<email>hverkuil-cisco@xs4all.nl</email>
</author>
<published>2020-02-03T11:41:10Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=0ceba5502258c28362bffe1ceb259128ef77ad86'/>
<id>urn:sha1:0ceba5502258c28362bffe1ceb259128ef77ad86</id>
<content type='text'>
'GRABBER' is a weird name, all other types map to the /dev
device names. Rename to 'VIDEO' to be consistent with the
other types.

Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
Reviewed-by: Laurent Pinchart &lt;laurent.pinchart@ideasonboard.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab+huawei@kernel.org&gt;
</content>
</entry>
<entry>
<title>Merge 5.6-rc3 into usb-next</title>
<updated>2020-02-24T07:48:49Z</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2020-02-24T07:48:49Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=24e6aea4801bae1dce3b16da6bc64fc06742ac14'/>
<id>urn:sha1:24e6aea4801bae1dce3b16da6bc64fc06742ac14</id>
<content type='text'>
We need the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
</entry>
<entry>
<title>usb: gadget: f_phonet: Replace zero-length array with flexible-array member</title>
<updated>2020-02-14T16:38:16Z</updated>
<author>
<name>Gustavo A. R. Silva</name>
<email>gustavo@embeddedor.com</email>
</author>
<published>2020-02-11T23:23:03Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=b57a368efde6b2980606169cdcaa1c4101adffe0'/>
<id>urn:sha1:b57a368efde6b2980606169cdcaa1c4101adffe0</id>
<content type='text'>
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertenly introduced[3] to the codebase from now on.

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva &lt;gustavo@embeddedor.com&gt;
Link: https://lore.kernel.org/r/20200211232303.GA21495@embeddedor
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
</entry>
</feed>
