Fix a bug where if userspace is writing to encrypted files while the
FS_IOC_REMOVE_ENCRYPTION_KEY ioctl (introduced in v5.4) is running,
dirty inodes could be evicted, causing writes could be lost or the
filesystem to hang due to a use-after-free. This was encountered during
real-world use, not just theoretical.
Tested with the existing fscrypt xfstests, and with a new xfstest I
wrote to reproduce this bug. This fix does expose an existing bug with
'-o lazytime' that Ted is working on fixing, but this fix is more
critical and needed anyway regardless of the lazytime fix.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fscrypt fix from Eric Biggers:
"Fix a bug where if userspace is writing to encrypted files while the
FS_IOC_REMOVE_ENCRYPTION_KEY ioctl (introduced in v5.4) is running,
dirty inodes could be evicted, causing writes could be lost or the
filesystem to hang due to a use-after-free. This was encountered
during real-world use, not just theoretical.
Tested with the existing fscrypt xfstests, and with a new xfstest I
wrote to reproduce this bug. This fix does expose an existing bug with
'-o lazytime' that Ted is working on fixing, but this fix is more
critical and needed anyway regardless of the lazytime fix"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
fscrypt: don't evict dirty inodes after removing key
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Merge tag 'for-linus-2020-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull thread fix from Christian Brauner:
"This contains a single fix for a regression which was introduced when
we introduced the ability to select a specific pid at process creation
time.
When this feature is requested, the error value will be set to -EPERM
after exiting the pid allocation loop. This caused EPERM to be
returned when e.g. the init process/child subreaper of the pid
namespace has already died where we used to return ENOMEM before.
The first patch here simply fixes the regression by unconditionally
setting the return value back to ENOMEM again once we've successfully
allocated the requested pid number. This should be easy to backport to
v5.5.
The second patch adds a comment explaining that we must keep returning
ENOMEM since we've been doing it for a long time and have explicitly
documented this behavior for userspace. This seemed worthwhile because
we now have at least two separate example where people tried to change
the return value to something other than ENOMEM (The first version of
the regression fix did that too and the commit message links to an
earlier patch that tried to do the same.).
I have a simple regression test to make sure we catch this regression
in the future but since that introduces a whole new selftest subdir
and test files I'll keep this for v5.7"
* tag 'for-linus-2020-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
pid: make ENOMEM return value more obvious
pid: Fix error return value in some cases
can break live patching.
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Merge tag 'trace-v5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull ftrace fix from Steven Rostedt:
"Have ftrace lookup_rec() return a consistent record otherwise it can
break live patching"
* tag 'trace-v5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace: Return the first found result in lookup_rec()
- Fix some inverted pins in the Meson GLX driver.
- Align the i.MX SC message structs causing warnings from
KASan.
- Balance the kref in pinctrl hogs so they are actually free:d
when removing a pin control module. We haven't seen it before
as people don't use modules for pin control that much, I
think.
- Add a missing call to pinctrl_unregister_mappings() another
memory leak when using modules.
- Fix the fwspec parsing in the Qualcomm driver.
- Fix a syntax error in the Falcon driver.
- Assign .irq_eoi conditionally in the Qualcomm driver, fixing
a bug affecting elder Qualcomm platforms.
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Merge tag 'pinctrl-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some pin control fixes for the v5.6 series.
It comes down to memory leaks in the core and driver fixes. Some
should have been sent earlier but they kept piling up and the world is
just so full of distractions these days.
- Fix some inverted pins in the Meson GLX driver.
- Align the i.MX SC message structs causing warnings from KASan.
- Balance the kref in pinctrl hogs so they are actually free:d when
removing a pin control module. We haven't seen it before as people
don't use modules for pin control that much, I think.
- Add a missing call to pinctrl_unregister_mappings() another memory
leak when using modules.
- Fix the fwspec parsing in the Qualcomm driver.
- Fix a syntax error in the Falcon driver.
- Assign .irq_eoi conditionally in the Qualcomm driver, fixing a bug
affecting elder Qualcomm platforms"
* tag 'pinctrl-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: qcom: Assign irq_eoi conditionally
pinctrl: falcon: fix syntax error
pinctrl: qcom: ssbi-gpio: Fix fwspec parsing bug
pinctrl: madera: Add missing call to pinctrl_unregister_mappings
pinctrl: core: Remove extra kref_get which blocks hogs being freed
pinctrl: imx: scu: Align imx sc msg structs to 4
pinctrl: meson-gxl: fix GPIOX sdio pins
This does three inter-related things to clarify the usage of the
platform device dma_mask field. In the process, fix the bug introduced
by cdfee56232 ("driver core: initialize a default DMA mask for
platform device") that caused Artem Tashkinov's laptop to not boot with
newer Fedora kernels.
This does:
- First off, rename the field to "platform_dma_mask" to make it
greppable.
We have way too many different random fields called "dma_mask" in
various data structures, where some of them are actual masks, and
some of them are just pointers to the mask. And the structures all
have pointers to each other, or embed each other inside themselves,
and "pdev" sometimes means "platform device" and sometimes it means
"PCI device".
So to make it clear in the code when you actually use this new field,
give it a unique name (it really should be something even more unique
like "platform_device_dma_mask", since it's per platform device, not
per platform, but that gets old really fast, and this is unique
enough in context).
To further clarify when the field gets used, initialize it when we
actually start using it with the default value.
- Then, use this field instead of the random one-off allocation in
platform_device_register_full() that is now unnecessary since we now
already have a perfectly fine allocation for it in the platform
device structure.
- The above then allows us to fix the actual bug, where the error path
of platform_device_register_full() would unconditionally free the
platform device DMA allocation with 'kfree()'.
That kfree() was dont regardless of whether the allocation had been
done earlier with the (now removed) kmalloc, or whether
setup_pdev_dma_masks() had already been used and the dma_mask pointer
pointed to the mask that was part of the platform device.
It seems most people never triggered the error path, or only triggered
it from a call chain that set an explicit pdevinfo->dma_mask value (and
thus caused the unnecessary allocation that was "cleaned up" in the
error path) before calling platform_device_register_full().
Robin Murphy points out that in Artem's case the wdat_wdt driver failed
in platform_device_add(), and that was the one that had called
platform_device_register_full() with pdevinfo.dma_mask = 0, and would
have caused that kfree() of pdev.dma_mask corrupting the heap.
A later unrelated kmalloc() then oopsed due to the heap corruption.
Fixes: cdfee56232 ("driver core: initialize a default DMA mask for platform device")
Reported-bisected-and-tested-by: Artem S. Tashkinov <aros@gmx.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It appears that ip ranges can overlap so. In that case lookup_rec()
returns whatever results it got last even if it found nothing in last
searched page.
This breaks an obscure livepatch late module patching usecase:
- load livepatch
- load the patched module
- unload livepatch
- try to load livepatch again
To fix this return from lookup_rec() as soon as it found the record
containing searched-for ip. This used to be this way prior lookup_rec()
introduction.
Link: http://lkml.kernel.org/r/20200306174317.21699-1-asavkov@redhat.com
Cc: stable@vger.kernel.org
Fixes: 7e16f581a8 ("ftrace: Separate out functionality from ftrace_location_range()")
Signed-off-by: Artem Savkov <asavkov@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
It has been a while since the last time I sent one!
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Merge tag 'clang-format-for-linus-v5.6-rc6' of git://github.com/ojeda/linux
Pull clang-format update from Miguel Ojeda:
"Another update for the .clang-format macro list
It has been a while since the last time I sent one!"
* tag 'clang-format-for-linus-v5.6-rc6' of git://github.com/ojeda/linux:
clang-format: Update with the latest for_each macro list
- charlcd: replace zero-length array with flexible-array member
From the kernel-wide cleanup Gustavo A. R. Silva is performing
- img-ascii-lcd: convert to devm_platform_ioremap_resource
From Yangtao Li
- Fix Kconfig indentation
From Krzysztof Kozlowski
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Merge tag 'auxdisplay-for-linus-v5.6-rc6' of git://github.com/ojeda/linux
Pull auxdisplay updates from Miguel Ojeda:
"A few minor auxdisplay improvements:
- charlcd: replace zero-length array with flexible-array member
(kernel-wide cleanup by Gustavo A. R. Silva)
- img-ascii-lcd: convert to devm_platform_ioremap_resource (Yangtao
Li)
- Fix Kconfig indentation (Krzysztof Kozlowski)
* tag 'auxdisplay-for-linus-v5.6-rc6' of git://github.com/ojeda/linux:
auxdisplay: charlcd: replace zero-length array with flexible-array member
auxdisplay: img-ascii-lcd: convert to devm_platform_ioremap_resource
auxdisplay: Fix Kconfig indentation
Pull cgroup fixes from Tejun Heo:
- cgroup.procs listing related fixes.
It didn't interlock properly with exiting tasks leaving a short
window where a cgroup has empty cgroup.procs but still can't be
removed and misbehaved on short reads.
- psi_show() crash fix on 32bit ino archs
- Empty release_agent handling fix
* 'for-5.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup1: don't call release_agent when it is ""
cgroup: fix psi_show() crash on 32bit ino archs
cgroup: Iterate tasks that did not finish do_exit()
cgroup: cgroup_procs_next should increase position index
cgroup-v1: cgroup_pidlist_next should update position index
Pull workqueue fixes from Tejun Heo:
"Workqueue has been incorrectly round-robining per-cpu work items.
Hillf's patch fixes that.
The other patch documents memory-ordering properties of workqueue
operations"
* 'for-5.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: don't use wq_select_unbound_cpu() for bound works
workqueue: Document (some) memory-ordering properties of {queue,schedule}_work()
wq_select_unbound_cpu() is designed for unbound workqueues only, but
it's wrongly called when using a bound workqueue too.
Fixing this ensures work queued to a bound workqueue with
cpu=WORK_CPU_UNBOUND always runs on the local CPU.
Before, that would happen only if wq_unbound_cpumask happened to include
it (likely almost always the case), or was empty, or we got lucky with
forced round-robin placement. So restricting
/sys/devices/virtual/workqueue/cpumask to a small subset of a machine's
CPUs would cause some bound work items to run unexpectedly there.
Fixes: ef55718044 ("workqueue: schedule WORK_CPU_UNBOUND work on wq_unbound_cpumask CPUs")
Cc: stable@vger.kernel.org # v4.5+
Signed-off-by: Hillf Danton <hdanton@sina.com>
[dj: massage changelog]
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
- Make the default option oldconfig instead of randconfig
(one too many times I lost my config because I left the build type out)
- Add timeout to ssh sync to sync before reboot (prevents test hangs)
- A couple of spelling fix patches
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Merge tag 'ktest-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull Ktest fixes and clean ups from Steven Rostedt:
- Make the default option oldconfig instead of randconfig (one too many
times I lost my config because I left the build type out)
- Add timeout to ssh sync to sync before reboot (prevents test hangs)
- A couple of spelling fix patches
* tag 'ktest-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Fix typos in ktest.pl
ktest: Add timeout for ssh sync testing
ktest: Make default build option oldconfig not randconfig
ktest: Fix some typos in sample.conf
- sdhci-msm: Silence warning about turning function into static
- sdhci-pci-gli: Fix support for GL975x by enabling MSI interrupt
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Merge tag 'mmc-v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC host fixes from Ulf Hansson:
- sdhci-msm: Silence warning about turning function into static
- sdhci-pci-gli: Fix support for GL975x by enabling MSI interrupt
* tag 'mmc-v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-pci-gli: Enable MSI interrupt for GL975x
mmc: sdhci-msm: Mark sdhci_msm_cqe_disable static
Some bug fixes all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"Some bug fixes all over the place"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_balloon: Adjust label in virtballoon_probe
virtio-blk: improve virtqueue error to BLK_STS
virtio-blk: fix hw_queue stopped on arbitrary error
virtio_ring: Fix mem leak with vring_new_virtqueue()
The alloc_pid() codepath used to be simpler. With the introducation of the
ability to choose specific pids in 49cb2fc42c ("fork: extend clone3() to
support setting a PID") it got more complex. It hasn't been super obvious
that ENOMEM is returned when the pid namespace init process/child subreaper
of the pid namespace has died. As can be seen from multiple attempts to
improve this see e.g. [1] and most recently [2].
We regressed returning ENOMEM in [3] and [2] restored it. Let's add a
comment on top explaining that this is historic and documented behavior and
cannot easily be changed.
[1]: 35f71bc0a0 ("fork: report pid reservation failure properly")
[2]: b26ebfe12f ("pid: Fix error return value in some cases")
[3]: 49cb2fc42c ("fork: extend clone3() to support setting a PID")
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This patch fixes multipe spelling typo found in ktest.pl.
Link: http://lkml.kernel.org/r/20200309115430.57540-1-standby24x7@gmail.com
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Before rebooting the box, a "ssh sync" is called to the test machine to see
if it is alive or not. But if the test machine is in a partial state, that
ssh may never actually finish, and the ktest test hangs.
Add a 10 second timeout to the sync test, which will fail after 10 seconds
and then cause the test to reboot the test machine.
Cc: stable@vger.kernel.org
Fixes: 6474ace999 ("ktest.pl: Powercycle the box on reboot if no connection can be made")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
For the last time, I screwed up my ktest config file, and the build went
into the default "randconfig", blowing away the .config that I had set up.
The reason for the default randconfig was because when this was first
written, I wanted to do a bunch of randconfigs. But as time progressed,
ktest isn't about randconfig anymore, and because randconfig destroys the
config in the build directory, it's a dangerous default to have. Use
oldconfig as the default.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This patch fixes some spelling typo in sample.conf
Link: http://lkml.kernel.org/r/20190930124925.20250-1-standby24x7@gmail.com
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
The hierarchical parts of MSM pinctrl/GPIO is only
used when the device tree has a "wakeup-parent" as
a phandle, but the .irq_eoi is anyway assigned leading
to semantic problems on elder Qualcomm chipsets.
When the drivers/mfd/qcom-pm8xxx.c driver calls
chained_irq_exit() that call will in turn call chip->irq_eoi()
which is set to irq_chip_eoi_parent() by default on a
hierachical IRQ chip, and the parent is pinctrl-msm.c
so that will in turn unconditionally call
irq_chip_eoi_parent() again, but its parent is invalid
so we get the following crash:
Unnable to handle kernel NULL pointer dereference at
virtual address 00000010
pgd = (ptrval)
[00000010] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
(...)
PC is at irq_chip_eoi_parent+0x4/0x10
LR is at pm8xxx_irq_handler+0x1b4/0x2d8
If we solve this crash by avoiding to call up to
irq_chip_eoi_parent(), the machine will hang and get
reset by the watchdog, because of semantic issues,
probably inside irq_chip.
As a solution, just assign the .irq_eoi conditionally if
we are actually using a wakeup parent.
Cc: David Heidelberg <david@ixit.cz>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Lina Iyer <ilina@codeaurora.org>
Cc: Stephen Boyd <swboyd@chromium.org>
Cc: stable@vger.kernel.org
Fixes: e35a6ae0eb ("pinctrl/msm: Setup GPIO chip in hierarchy")
Link: https://lore.kernel.org/r/20200306121221.1231296-1-linus.walleij@linaro.org
Link: https://lore.kernel.org/r/20200309125207.571840-1-linus.walleij@linaro.org
Link: https://lore.kernel.org/r/20200309152604.585112-1-linus.walleij@linaro.org
Tested-by: David Heidelberg <david@ixit.cz>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We are parsing SSBI gpios as fourcell fwspecs but they are
twocell. Probably a simple copy-and-paste bug.
Tested on the APQ8060 DragonBoard and after this ethernet
and MMC card detection works again.
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: stable@vger.kernel.org
Reviewed-by: Brian Masney <masneyb@onstation.org>
Fixes: ae436fe810 ("pinctrl: ssbi-gpio: convert to hierarchical IRQ helpers in gpio core")
Link: https://lore.kernel.org/r/20200306143416.1476250-1-linus.walleij@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We've been accruing these for a couple of weeks, so the batch is a bit
bigger than usual.
Largest delta is due to a led-bl driver that is added -- there was
a miscommunication before the merge window and the driver didn't make it
in. Due to this, the platforms needing it regressed. At this point, it
seemed easier to add the new driver than unwind the changes.
Besides that, there are a handful of various fixes:
- AMD tee memory leak fix
- A handful of fixlets for i.MX SCU communication
- A few maintainers woke up and realized DEBUG_FS had been missing for
a while, so a few updates of that.
... and the usual collection of smaller fixes to various platforms.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"We've been accruing these for a couple of weeks, so the batch is a bit
bigger than usual.
Largest delta is due to a led-bl driver that is added -- there was a
miscommunication before the merge window and the driver didn't make it
in. Due to this, the platforms needing it regressed. At this point, it
seemed easier to add the new driver than unwind the changes.
Besides that, there are a handful of various fixes:
- AMD tee memory leak fix
- A handful of fixlets for i.MX SCU communication
- A few maintainers woke up and realized DEBUG_FS had been missing
for a while, so a few updates of that.
... and the usual collection of smaller fixes to various platforms"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (37 commits)
ARM: socfpga_defconfig: Add back DEBUG_FS
arm64: dts: socfpga: agilex: Fix gmac compatible
ARM: bcm2835_defconfig: Explicitly restore CONFIG_DEBUG_FS
arm64: dts: meson: fix gxm-khadas-vim2 wifi
arm64: dts: meson-sm1-sei610: add missing interrupt-names
ARM: meson: Drop unneeded select of COMMON_CLK
ARM: dts: bcm2711: Add pcie0 alias
ARM: dts: bcm283x: Add missing properties to the PWR LED
tee: amdtee: fix memory leak in amdtee_open_session()
ARM: OMAP2+: Fix compile if CONFIG_HAVE_ARM_SMCCC is not set
arm: dts: dra76x: Fix mmc3 max-frequency
ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes
bus: ti-sysc: Fix 1-wire reset quirk
ARM: dts: r8a7779: Remove deprecated "renesas, rcar-sata" compatible value
soc: imx-scu: Align imx sc msg structs to 4
firmware: imx: Align imx_sc_msg_req_cpu_start to 4
firmware: imx: scu-pd: Align imx sc msg structs to 4
firmware: imx: misc: Align imx sc msg structs to 4
firmware: imx: scu: Ensure sequential TX
ARM: dts: imx7-colibri: Fix frequency for sd/mmc
...
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Merge tag 'edac_urgent-2020-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fix from Borislav Petkov:
"Error reporting fix for synopsys_edac: do not overwrite partial
decoded error message (Sherry Sun)"
* tag 'edac_urgent-2020-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/synopsys: Do not print an error with back-to-back snprintf() calls
Here are 4 small char/misc driver fixes for reported issues for 5.6-rc5.
These fixes are:
- binder fix for a potential use-after-free problem found (took
2 tries to get it right)
- interconnect core fix
- altera-stapl driver fix
All 4 of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are four small char/misc driver fixes for reported issues for
5.6-rc5.
These fixes are:
- binder fix for a potential use-after-free problem found (took two
tries to get it right)
- interconnect core fix
- altera-stapl driver fix
All four of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
binder: prevent UAF for binderfs devices II
interconnect: Handle memory allocation errors
altera-stapl: altera_get_note: prevent write beyond end of 'key'
binder: prevent UAF for binderfs devices
Here are 4 small driver core / debugfs patches for 5.6-rc3
They are:
- debugfs api cleanup now that all callers for
debugfs_create_regset32() have been fixed up. This was
waiting until after the -rc1 merge as these fixes came in
through different trees
- driver core sync state fixes based on reports of minor issues
found in the feature
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs fixes from Greg KH:
"Here are four small driver core / debugfs patches for 5.6-rc3:
- debugfs api cleanup now that all debugfs_create_regset32() callers
have been fixed up. This was waiting until after the -rc1 merge as
these fixes came in through different trees
- driver core sync state fixes based on reports of minor issues found
in the feature
All of these have been in linux-next with no reported issues"
* tag 'driver-core-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
driver core: Skip unnecessary work when device doesn't have sync_state()
driver core: Add dev_has_sync_state()
driver core: Call sync_state() even if supplier has no consumers
debugfs: remove return value of debugfs_create_regset32()
Here are some small tty/serial fixes for 5.6-rc5
Just some small serial driver fixes, and a vt core fixup, full details
are:
- vt fixes for issues found by syzbot
- serdev fix for Apple boxes
- fsl_lpuart serial driver fixes
- MAINTAINER update for incorrect serial files
- new device ids for 8250_exar driver
- mvebu-uart fix
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some small tty/serial fixes for 5.6-rc5
Just some small serial driver fixes, and a vt core fixup, full details
are:
- vt fixes for issues found by syzbot
- serdev fix for Apple boxes
- fsl_lpuart serial driver fixes
- MAINTAINER update for incorrect serial files
- new device ids for 8250_exar driver
- mvebu-uart fix
All of these have been in linux-next with no reported issues"
* tag 'tty-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: fsl_lpuart: free IDs allocated by IDA
Revert "tty: serial: fsl_lpuart: drop EARLYCON_DECLARE"
serdev: Fix detection of UART devices on Apple machines.
MAINTAINERS: Add missed files related to Synopsys DesignWare UART
serial: 8250_exar: add support for ACCES cards
tty:serial:mvebu-uart:fix a wrong return
vt: selection, push sel_lock up
vt: selection, push console lock down
Here are some small USB and PHY driver fixes for reported issues for
5.6-rc5.
Included in here are:
- phy driver fixes
- new USB quirks
- USB cdns3 gadget driver fixes
- USB hub core fixes
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY fixes from Greg KH:
"Here are some small USB and PHY driver fixes for reported issues for
5.6-rc5.
Included in here are:
- phy driver fixes
- new USB quirks
- USB cdns3 gadget driver fixes
- USB hub core fixes
All of these have been in linux-next with no reported issues"
* tag 'usb-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: dwc3: gadget: Update chain bit correctly when using sg list
usb: core: port: do error out if usb_autopm_get_interface() fails
usb: core: hub: do error out if usb_autopm_get_interface() fails
usb: core: hub: fix unhandled return by employing a void function
usb: storage: Add quirk for Samsung Fit flash
usb: quirks: add NO_LPM quirk for Logitech Screen Share
usb: usb251xb: fix regulator probe and error handling
phy: allwinner: Fix GENMASK misuse
usb: cdns3: gadget: toggle cycle bit before reset endpoint
usb: cdns3: gadget: link trb should point to next request
phy: mapphone-mdm6600: Fix timeouts by adding wake-up handling
phy: brcm-sata: Correct MDIO operations for 40nm platforms
phy: ti: gmii-sel: do not fail in case of gmii
phy: ti: gmii-sel: fix set of copy-paste errors
phy: core: Fix phy_get() to not return error on link creation failure
phy: mapphone-mdm6600: Fix write timeouts with shorter GPIO toggle interval
Recent changes to alloc_pid() allow the pid number to be specified on
the command line. If set_tid_size is set, then the code scanning the
levels will hard-set retval to -EPERM, overriding it's previous -ENOMEM
value.
After the code scanning the levels, there are error returns that do not
set retval, assuming it is still set to -ENOMEM.
So set retval back to -ENOMEM after scanning the levels.
Fixes: 49cb2fc42c ("fork: extend clone3() to support setting a PID")
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Adrian Reber <areber@redhat.com>
Cc: <stable@vger.kernel.org> # 5.5
Link: https://lore.kernel.org/r/20200306172314.12232-1-minyard@acm.org
[christian.brauner@ubuntu.com: fixup commit message]
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Clang warns when CONFIG_BALLOON_COMPACTION is unset:
../drivers/virtio/virtio_balloon.c:963:1: warning: unused label
'out_del_vqs' [-Wunused-label]
out_del_vqs:
^~~~~~~~~~~~
1 warning generated.
Move the label within the preprocessor block since it is only used when
CONFIG_BALLOON_COMPACTION is set.
Fixes: 1ad6f58ea9 ("virtio_balloon: Fix memory leaks on errors in virtballoon_probe()")
Link: https://github.com/ClangBuiltLinux/linux/issues/886
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lore.kernel.org/r/20200216004039.23464-1-natechancellor@gmail.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Let's change the mapping between virtqueue_add errors to BLK_STS
statuses, so that -ENOSPC, which indicates virtqueue full is still
mapped to BLK_STS_DEV_RESOURCE, but -ENOMEM which indicates non-device
specific resource outage is mapped to BLK_STS_RESOURCE.
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Link: https://lore.kernel.org/r/20200213123728.61216-3-pasic@linux.ibm.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Since nobody else is going to restart our hw_queue for us, the
blk_mq_start_stopped_hw_queues() is in virtblk_done() is not sufficient
necessarily sufficient to ensure that the queue will get started again.
In case of global resource outage (-ENOMEM because mapping failure,
because of swiotlb full) our virtqueue may be empty and we can get
stuck with a stopped hw_queue.
Let us not stop the queue on arbitrary errors, but only on -EONSPC which
indicates a full virtqueue, where the hw_queue is guaranteed to get
started by virtblk_done() before when it makes sense to carry on
submitting requests. Let us also remove a stale comment.
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Cc: Jens Axboe <axboe@kernel.dk>
Fixes: f7728002c1 ("virtio_ring: fix return code on DMA mapping fails")
Link: https://lore.kernel.org/r/20200213123728.61216-2-pasic@linux.ibm.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
The functions vring_new_virtqueue() and __vring_new_virtqueue() are used
with split rings, and any allocations within these functions are managed
outside of the .we_own_ring flag. The commit cbeedb72b9 ("virtio_ring:
allocate desc state for split ring separately") allocates the desc state
within the __vring_new_virtqueue() but frees it only when the .we_own_ring
flag is set. This leads to a memory leak when freeing such allocated
virtqueues with the vring_del_virtqueue() function.
Fix this by moving the desc_state free code outside the flag and only
for split rings. Issue was discovered during testing with remoteproc
and virtio_rpmsg.
Fixes: cbeedb72b9 ("virtio_ring: allocate desc state for split ring separately")
Signed-off-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20200224212643.30672-1-s-anna@ti.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
After FS_IOC_REMOVE_ENCRYPTION_KEY removes a key, it syncs the
filesystem and tries to get and put all inodes that were unlocked by the
key so that unused inodes get evicted via fscrypt_drop_inode().
Normally, the inodes are all clean due to the sync.
However, after the filesystem is sync'ed, userspace can modify and close
one of the files. (Userspace is *supposed* to close the files before
removing the key. But it doesn't always happen, and the kernel can't
assume it.) This causes the inode to be dirtied and have i_count == 0.
Then, fscrypt_drop_inode() failed to consider this case and indicated
that the inode can be dropped, causing the write to be lost.
On f2fs, other problems such as a filesystem freeze could occur due to
the inode being freed while still on f2fs's dirty inode list.
Fix this bug by making fscrypt_drop_inode() only drop clean inodes.
I've written an xfstest which detects this bug on ext4, f2fs, and ubifs.
Fixes: b1c0ec3599 ("fscrypt: add FS_IOC_REMOVE_ENCRYPTION_KEY ioctl")
Cc: <stable@vger.kernel.org> # v5.4+
Link: https://lore.kernel.org/r/20200305084138.653498-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
- Fix busted syzkaller fix in 'get_new_pps' - this turned out to crash on
certain HW configurations
- Bug fixes for various missed things in error unwinds
- Add a missing rcu_read_lock annotation in hfi/qib
- Fix two ODP related regressions from the recent mmu notifier changes
- Several more syzkaller bugs in siw, RDMA netlink, verbs and iwcm
- Revert an old patch in CMA as it is now shown to not be allocating port
numbers properly
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"Nothing particularly exciting, some small ODP regressions from the mmu
notifier rework, another bunch of syzkaller fixes, and a bug fix for a
botched syzkaller fix in the first rc pull request.
- Fix busted syzkaller fix in 'get_new_pps' - this turned out to
crash on certain HW configurations
- Bug fixes for various missed things in error unwinds
- Add a missing rcu_read_lock annotation in hfi/qib
- Fix two ODP related regressions from the recent mmu notifier
changes
- Several more syzkaller bugs in siw, RDMA netlink, verbs and iwcm
- Revert an old patch in CMA as it is now shown to not be allocating
port numbers properly"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/iwcm: Fix iwcm work deallocation
RDMA/siw: Fix failure handling during device creation
RDMA/nldev: Fix crash when set a QP to a new counter but QPN is missing
RDMA/odp: Ensure the mm is still alive before creating an implicit child
RDMA/core: Fix protection fault in ib_mr_pool_destroy
IB/mlx5: Fix implicit ODP race
IB/hfi1, qib: Ensure RCU is locked when accessing list
RDMA/core: Fix pkey and port assignment in get_new_pps
RMDA/cm: Fix missing ib_cm_destroy_id() in ib_cm_insert_listen()
RDMA/rw: Fix error flow during RDMA context initialization
RDMA/core: Fix use of logical OR in get_new_pps
Revert "RDMA/cma: Simplify rdma_resolve_addr() error flow"
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Merge tag 'io_uring-5.6-2020-03-07' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Here are a few io_uring fixes that should go into this release. This
contains:
- Removal of (now) unused io_wq_flush() and associated flag (Pavel)
- Fix cancelation lockup with linked timeouts (Pavel)
- Fix for potential use-after-free when freeing percpu ref for fixed
file sets
- io-wq cancelation fixups (Pavel)"
* tag 'io_uring-5.6-2020-03-07' of git://git.kernel.dk/linux-block:
io_uring: fix lockup with timeouts
io_uring: free fixed_file_data after RCU grace period
io-wq: remove io_wq_flush and IO_WQ_WORK_INTERNAL
io-wq: fix IO_WQ_WORK_NO_CANCEL cancellation
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Merge tag 'block-5.6-2020-03-07' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Here are a few fixes that should go into this release. This contains:
- Revert of a bad bcache patch from this merge window
- Removed unused function (Daniel)
- Fixup for the blktrace fix from Jan from this release (Cengiz)
- Fix of deeper level bfqq overwrite in BFQ (Carlo)"
* tag 'block-5.6-2020-03-07' of git://git.kernel.dk/linux-block:
block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group()
blktrace: fix dereference after null check
Revert "bcache: ignore pending signals when creating gc and allocator thread"
block: Remove used kblockd_schedule_work_on()
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Merge tag 'media/v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- a fix for the media controller links in both hantro driver and in
v4l2-mem2mem core
- some fixes for the pulse8-cec driver
- vicodec: handle alpha channel for RGB32 formats, as it may be used
- mc-entity.c: fix handling of pad flags
* tag 'media/v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: hantro: Fix broken media controller links
media: mc-entity.c: use & to check pad flags, not ==
media: v4l2-mem2mem.c: fix broken links
media: vicodec: process all 4 components for RGB32 formats
media: pulse8-cec: close serio in disconnect, not adap_free
media: pulse8-cec: INIT_DELAYED_WORK was called too late
There is a recipe to deadlock the kernel: submit a timeout sqe with a
linked_timeout (e.g. test_single_link_timeout_ception() from liburing),
and SIGKILL the process.
Then, io_kill_timeouts() takes @ctx->completion_lock, but the timeout
isn't flagged with REQ_F_COMP_LOCKED, and will try to double grab it
during io_put_free() to cancel the linked timeout. Probably, the same
can happen with another io_kill_timeout() call site, that is
io_commit_cqring().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- Fix panic in gup_fast on large pud by providing an implementation of
pud_write. This has been overlooked during migration to common gup code.
- Fix unexpected write combining on PCI stores.
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Merge tag 's390-5.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix panic in gup_fast on large pud by providing an implementation of
pud_write. This has been overlooked during migration to common gup
code.
- Fix unexpected write combining on PCI stores.
* tag 's390-5.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pci: Fix unexpected write combine on resource
s390/mm: fix panic in gup_fast on large pud
One fix for a recent regression to our breakpoint/watchpoint code.
Another fix for our KUAP support, this time a missing annotation in a rarely
used path in signal handling.
A fix for our handling of a CPU feature that effects the PMU, when booting
guests in some configurations.
A minor fix to our linker script to explicitly include the .BTF section.
Thanks to:
Christophe Leroy, Desnes A. Nunes do Rosario, Leonardo Bras, Naveen N. Rao,
Ravi Bangoria, Stefan Berger.
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Merge tag 'powerpc-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Some more powerpc fixes for 5.6:
- One fix for a recent regression to our breakpoint/watchpoint code.
- Another fix for our KUAP support, this time a missing annotation in
a rarely used path in signal handling.
- A fix for our handling of a CPU feature that effects the PMU, when
booting guests in some configurations.
- A minor fix to our linker script to explicitly include the .BTF
section.
Thanks to: Christophe Leroy, Desnes A. Nunes do Rosario, Leonardo
Bras, Naveen N. Rao, Ravi Bangoria, Stefan Berger"
* tag 'powerpc-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fix missing KUAP disable in flush_coherent_icache()
powerpc: fix hardware PMU exception bug on PowerVM compatibility mode systems
powerpc: Include .BTF section
powerpc/watchpoint: Don't call dar_within_range() for Book3S
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Merge tag 'for-linus-5.6b-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Four fixes and a small cleanup patch:
- two fixes by Dongli Zhang fixing races in the xenbus driver
- two fixes by me fixing issues introduced in 5.6
- a small cleanup by Gustavo Silva replacing a zero-length array with
a flexible-array"
* tag 'for-linus-5.6b-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/blkfront: fix ring info addressing
xen/xenbus: fix locking
xenbus: req->err should be updated before req->state
xenbus: req->body should be updated before req->state
xen: Replace zero-length array with flexible-array member
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Merge tag 'for-linus-2020-03-07' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux
Pull thread fixes from Christian Brauner:
"Here are a few hopefully uncontroversial fixes:
- Use RCU_INIT_POINTER() when initializing rcu protected members in
task_struct to fix sparse warnings.
- Add pidfd_fdinfo_test binary to .gitignore file"
* tag 'for-linus-2020-03-07' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux:
selftests: pidfd: Add pidfd_fdinfo_test in .gitignore
exit: Fix Sparse errors and warnings
fork: Use RCU_INIT_POINTER() instead of rcu_access_pointer()
The regular "bump-in-the-middle" updates, containing mostly ASoC-
related fixes at this time. All changes are reasonably small.
A few entries are for ASoC and ALSA core parts (DAPM, PCM, topology)
for followups of the recent changes and potential buffer overflow by
snprintf(), while the rest are (both new and old) device-specific
fixes for Intel, meson, tas2562, rt1015, as well as the usual
HD-audio quirks.
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Merge tag 'sound-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The regular "bump-in-the-middle" updates, containing mostly ASoC-
related fixes at this time. All changes are reasonably small.
A few entries are for ASoC and ALSA core parts (DAPM, PCM, topology)
for followups of the recent changes and potential buffer overflow by
snprintf(), while the rest are (both new and old) device-specific
fixes for Intel, meson, tas2562, rt1015, as well as the usual HD-audio
quirks"
* tag 'sound-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (25 commits)
ALSA: sgio2audio: Remove usage of dropped hw_params/hw_free functions
ALSA: hda/realtek - Enable the headset of ASUS B9450FA with ALC294
ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master
ALSA: hda/realtek - Add Headset Button supported for ThinkPad X1
ALSA: hda/realtek - Add Headset Mic supported
ASoC: wm8741: Fix typo in Kconfig prompt
ASoC: stm32: sai: manage rebind issue
ASoC: SOF: Fix snd_sof_ipc_stream_posn()
ASoC: rt1015: modify pre-divider for sysclk
ASoC: rt1015: add operation callback function for rt1015_dai[]
ASoC: soc-component: tidyup snd_soc_pcm_component_sync_stop()
ASoC: dapm: Correct DAPM handling of active widgets during shutdown
ASoC: tas2562: Fix sample rate error message
ASoC: Intel: Skylake: Fix available clock counter incrementation
ASoC: soc-pcm/soc-compress: don't use snd_soc_dapm_stream_stop()
ASoC: meson: g12a: add tohdmitx reset
ASoC: pcm512x: Fix unbalanced regulator enable call in probe error path
ASoC: soc-core: fix for_rtd_codec_dai_rollback() macro
ASoC: topology: Fix memleak in soc_tplg_manifest_load()
ASoC: topology: Fix memleak in soc_tplg_link_elems_load()
...
Interrupts should not be specified by interrupt line but by
gpio parent and reference.
Fixes: 73f2b94047 ("MIPS: CI20: DTS: Add I2C nodes")
Cc: stable@vger.kernel.org
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
There is a ACT8600 on the CI20 board and the bindings of the
ACT8865 driver have changed without updating the CI20 device
tree. Therefore the PMU can not be probed successfully and
is running in power-on reset state.
Fix DT to match the latest act8865-regulator bindings.
Fixes: 73f2b94047 ("MIPS: CI20: DTS: Add I2C nodes")
Cc: stable@vger.kernel.org
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
More fixes that have arrived since the merge window, spread out all
over. There's a few things like the operation callback addition for
rt1015 and the meson reset addition which add small new bits of
functionality to fix non-working systems, they're all very small and for
parts of newly added functionality.
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Merge tag 'asoc-fix-v5.6-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.6
More fixes that have arrived since the merge window, spread out all
over. There's a few things like the operation callback addition for
rt1015 and the meson reset addition which add small new bits of
functionality to fix non-working systems, they're all very small and for
parts of newly added functionality.
