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Pull Reiserfs and GFS2 fixes from Jan Kara:
"Fixes to GFS2 & Reiserfs for the fallout of the recent WRITE_FUA
cleanup from Christoph.
Fixes for other filesystems were already merged by respective
maintainers."
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
reiserfs: Make flush bios explicitely sync
gfs2: Make flush bios explicitely sync
Pull SCSI target fixes from Nicholas Bellinger:
"Here are the target-pending fixes for v4.12-rc4:
- ibmviscsis ABORT_TASK handling fixes that missed the v4.12 merge
window. (Bryant Ly and Michael Cyr)
- Re-add a target-core check enforcing WRITE overflow reject that was
relaxed in v4.3, to avoid unsupported iscsi-target immediate data
overflow. (nab)
- Fix a target-core-user OOPs during device removal. (MNC + Bryant
Ly)
- Fix a long standing iscsi-target potential issue where kthread exit
did not wait for kthread_should_stop(). (Jiang Yi)
- Fix a iscsi-target v3.12.y regression OOPs involving initial login
PDU processing during asynchronous TCP connection close. (MNC +
nab)
This is a little larger than usual for an -rc4, primarily due to the
iscsi-target v3.12.y regression OOPs bug-fix.
However, it's an important patch as MNC + Hannes where both able to
trigger it using a reduced iscsi initiator login timeout combined with
a backend taking a long time to complete I/Os during iscsi login
driven session reinstatement"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
iscsi-target: Always wait for kthread_should_stop() before kthread exit
iscsi-target: Fix initial login PDU asynchronous socket close OOPs
tcmu: fix crash during device removal
target: Re-add check to reject control WRITEs with overflow data
ibmvscsis: Fix the incorrect req_lim_delta
ibmvscsis: Clear left-over abort_cmd pointers
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Merge tag 'drm-fixes-for-v4.12-rc4' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"This is the main set of fixes for rc4, one amdgpu fix, some exynos
regression fixes, some msm fixes and some i915 and GVT fixes.
I've got a second regression fix for some DP chips that might be a
bit large, but I think we'd like to land it now, I'll send it along
tomorrow, once you are happy with this set"
* tag 'drm-fixes-for-v4.12-rc4' of git://people.freedesktop.org/~airlied/linux: (24 commits)
drm/amdgpu: Program ring for vce instance 1 at its register space
drm/exynos: clean up description of exynos_drm_crtc
drm/exynos: dsi: Remove bridge node reference in removal
drm/exynos: dsi: Fix the parse_dt function
drm/exynos: Merge pre/postclose hooks
drm/msm: Fix the check for the command size
drm/msm: Take the mutex before calling msm_gem_new_impl
drm/msm: for array in-fences, check if all backing fences are from our own context before waiting
drm/msm: constify irq_domain_ops
drm/msm/mdp5: release hwpipe(s) for unused planes
drm/msm: Reuse dma_fence_release.
drm/msm: Expose our reservation object when exporting a dmabuf.
drm/msm/gpu: check legacy clk names in get_clocks()
drm/msm/mdp5: use __drm_atomic_helper_plane_duplicate_state()
drm/msm: select PM_OPP
drm/i915: Stop pretending to mask/unmask LPE audio interrupts
drm/i915/selftests: Silence compiler warning in igt_ctx_exec
Revert "drm/i915: Restore lost "Initialized i915" welcome message"
drm/i915/gvt: clean up unsubmited workloads before destroying kmem cache
drm/i915/gvt: Disable compression workaround for Gen9
...
- Remove preclose hook of Exynos
. This was a exynos change of the patch series[1] merged already.
- Fix one dt broken issue
- Make sure to release bridge_node of Exynos MIPI-DSI driver.
[1] https://lists.freedesktop.org/archives/dri-devel/2017-March/135111.html
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Merge tag 'exynos-drm-fixes-for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
- Fix a regression to description of exynos_drm_crtc
- Remove preclose hook of Exynos
. This was a exynos change of the patch series[1] merged already.
- Fix one dt broken issue
- Make sure to release bridge_node of Exynos MIPI-DSI driver.
[1] https://lists.freedesktop.org/archives/dri-devel/2017-March/135111.html
* tag 'exynos-drm-fixes-for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: clean up description of exynos_drm_crtc
drm/exynos: dsi: Remove bridge node reference in removal
drm/exynos: dsi: Fix the parse_dt function
drm/exynos: Merge pre/postclose hooks
a few fixes for 4.12..
* 'msm-fixes-4.12-rc4' of git://people.freedesktop.org/~robclark/linux:
drm/msm: Fix the check for the command size
drm/msm: Take the mutex before calling msm_gem_new_impl
drm/msm: for array in-fences, check if all backing fences are from our own context before waiting
drm/msm: constify irq_domain_ops
drm/msm/mdp5: release hwpipe(s) for unused planes
drm/msm: Reuse dma_fence_release.
drm/msm: Expose our reservation object when exporting a dmabuf.
drm/msm/gpu: check legacy clk names in get_clocks()
drm/msm/mdp5: use __drm_atomic_helper_plane_duplicate_state()
drm/msm: select PM_OPP
drm/i915 fixes for v4.12-rc4
* tag 'drm-intel-fixes-2017-05-29' of git://anongit.freedesktop.org/git/drm-intel:
drm/i915: Stop pretending to mask/unmask LPE audio interrupts
drm/i915/selftests: Silence compiler warning in igt_ctx_exec
Revert "drm/i915: Restore lost "Initialized i915" welcome message"
drm/i915/gvt: clean up unsubmited workloads before destroying kmem cache
drm/i915/gvt: Disable compression workaround for Gen9
drm/i915: set initialised only when init_context callback is NULL
drm/i915: Fix new -Wint-in-bool-context gcc compiler warning
drm/i915: use vma->size for appgtt allocate_va_range
drm/i915: Do not sync RCU during shrinking
There are three timing problems in the kthread usages of iscsi_target_mod:
- np_thread of struct iscsi_np
- rx_thread and tx_thread of struct iscsi_conn
In iscsit_close_connection(), it calls
send_sig(SIGINT, conn->tx_thread, 1);
kthread_stop(conn->tx_thread);
In conn->tx_thread, which is iscsi_target_tx_thread(), when it receive
SIGINT the kthread will exit without checking the return value of
kthread_should_stop().
So if iscsi_target_tx_thread() exit right between send_sig(SIGINT...)
and kthread_stop(...), the kthread_stop() will try to stop an already
stopped kthread.
This is invalid according to the documentation of kthread_stop().
(Fix -ECONNRESET logout handling in iscsi_target_tx_thread and
early iscsi_target_rx_thread failure case - nab)
Signed-off-by: Jiang Yi <jiangyilism@gmail.com>
Cc: <stable@vger.kernel.org> # v3.12+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This patch fixes a OOPs originally introduced by:
commit bb048357da
Author: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu Sep 5 14:54:04 2013 -0700
iscsi-target: Add sk->sk_state_change to cleanup after TCP failure
which would trigger a NULL pointer dereference when a TCP connection
was closed asynchronously via iscsi_target_sk_state_change(), but only
when the initial PDU processing in iscsi_target_do_login() from iscsi_np
process context was blocked waiting for backend I/O to complete.
To address this issue, this patch makes the following changes.
First, it introduces some common helper functions used for checking
socket closing state, checking login_flags, and atomically checking
socket closing state + setting login_flags.
Second, it introduces a LOGIN_FLAGS_INITIAL_PDU bit to know when a TCP
connection has dropped via iscsi_target_sk_state_change(), but the
initial PDU processing within iscsi_target_do_login() in iscsi_np
context is still running. For this case, it sets LOGIN_FLAGS_CLOSED,
but doesn't invoke schedule_delayed_work().
The original NULL pointer dereference case reported by MNC is now handled
by iscsi_target_do_login() doing a iscsi_target_sk_check_close() before
transitioning to FFP to determine when the socket has already closed,
or iscsi_target_start_negotiation() if the login needs to exchange
more PDUs (eg: iscsi_target_do_login returned 0) but the socket has
closed. For both of these cases, the cleanup up of remaining connection
resources will occur in iscsi_target_start_negotiation() from iscsi_np
process context once the failure is detected.
Finally, to handle to case where iscsi_target_sk_state_change() is
called after the initial PDU procesing is complete, it now invokes
conn->login_work -> iscsi_target_do_login_rx() to perform cleanup once
existing iscsi_target_sk_check_close() checks detect connection failure.
For this case, the cleanup of remaining connection resources will occur
in iscsi_target_do_login_rx() from delayed workqueue process context
once the failure is detected.
Reported-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Tested-by: Mike Christie <mchristi@redhat.com>
Cc: Mike Christie <mchristi@redhat.com>
Reported-by: Hannes Reinecke <hare@suse.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Varun Prakash <varun@chelsio.com>
Cc: <stable@vger.kernel.org> # v3.12+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
We need program ring buffer on instance 1 register space domain,
when only if instance 1 available, with two instances or instance 0,
and we need only program instance 0 regsiter space domain for ring.
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Pull overlayfs fixes from Miklos Szeredi:
"Fix regressions:
- missing CONFIG_EXPORTFS dependency
- failure if upper fs doesn't support xattr
- bad error cleanup
This also adds the concept of "impure" directories complementing the
"origin" marking introduced in -rc1. Together they enable getting
consistent st_ino and d_ino for directory listings.
And there's a bug fix and a cleanup as well"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: filter trusted xattr for non-admin
ovl: mark upper merge dir with type origin entries "impure"
ovl: mark upper dir with type origin entries "impure"
ovl: remove unused arg from ovl_lookup_temp()
ovl: handle rename when upper doesn't support xattr
ovl: don't fail copy-up if upper doesn't support xattr
ovl: check on mount time if upper fs supports setting xattr
ovl: fix creds leak in copy up error path
ovl: select EXPORTFS
This effectively reverts commit 8ee74a91ac ("proc: try to remove use
of FOLL_FORCE entirely")
It turns out that people do depend on FOLL_FORCE for the /proc/<pid>/mem
case, and we're talking not just debuggers. Talking to the affected people, the use-cases are:
Keno Fischer:
"We used these semantics as a hardening mechanism in the julia JIT. By
opening /proc/self/mem and using these semantics, we could avoid
needing RWX pages, or a dual mapping approach. We do have fallbacks to
these other methods (though getting EIO here actually causes an assert
in released versions - we'll updated that to make sure to take the
fall back in that case).
Nevertheless the /proc/self/mem approach was our favored approach
because it a) Required an attacker to be able to execute syscalls
which is a taller order than getting memory write and b) didn't double
the virtual address space requirements (as a dual mapping approach
would).
I think in general this feature is very useful for anybody who needs
to precisely control the execution of some other process. Various
debuggers (gdb/lldb/rr) certainly fall into that category, but there's
another class of such processes (wine, various emulators) which may
want to do that kind of thing.
Now, I suspect most of these will have the other process under ptrace
control, so maybe allowing (same_mm || ptraced) would be ok, but at
least for the sandbox/remote-jit use case, it would be perfectly
reasonable to not have the jit server be a ptracer"
Robert O'Callahan:
"We write to readonly code and data mappings via /proc/.../mem in lots
of different situations, particularly when we're adjusting program
state during replay to match the recorded execution.
Like Julia, we can add workarounds, but they could be expensive."
so not only do people use FOLL_FORCE for both reads and writes, but they
use it for both the local mm and remote mm.
With these comments in mind, we likely also cannot add the "are we
actively ptracing" check either, so this keeps the new code organization
and does not do a real revert that would add back the original comment
about "Maybe we should limit FOLL_FORCE to actual ptrace users?"
Reported-by: Keno Fischer <keno@juliacomputing.com>
Reported-by: Robert O'Callahan <robert@ocallahan.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Make a few Intel Chromebooks with Cherryview DMI firmware
work smoothly.
- A fix for some bogus allocations in the generic group
management code.
- Some GPIO descriptor lookup table stubs. Merged through
the pin control tree for administrative reasons.
- Revert the "bi-directional" and "output-enable" generic
properties: we need more discussions around this. It seems
other SoCs are using input/output gate enablement and these
terms are not correct.
- Fix mux and drive strength atomically in the MXS driver.
- Fix the SPDIF function on sunxi A83T.
- OF table terminators and other small fixes.
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Merge tag 'pinctrl-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Here is an overdue pull request for pin control fixes, the most
prominent feature is to make Intel Chromebooks (and I suspect any
other Cherryview-based Intel thing) happy again, which we really want
to see.
There is a patch hitting drivers/firmware/* that I was uncertain to
who actually manages, but I got Andy Shevchenko's and Dmitry Torokov's
review tags on it and I trust them both 100% to do the right thing for
Intel platform drivers.
Summary:
- Make a few Intel Chromebooks with Cherryview DMI firmware work
smoothly.
- A fix for some bogus allocations in the generic group management
code.
- Some GPIO descriptor lookup table stubs. Merged through the pin
control tree for administrative reasons.
- Revert the "bi-directional" and "output-enable" generic properties:
we need more discussions around this. It seems other SoCs are using
input/output gate enablement and these terms are not correct.
- Fix mux and drive strength atomically in the MXS driver.
- Fix the SPDIF function on sunxi A83T.
- OF table terminators and other small fixes"
* tag 'pinctrl-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sunxi: Fix SPDIF function name for A83T
pinctrl: mxs: atomically switch mux and drive strength config
pinctrl: cherryview: Extend the Chromebook DMI quirk to Intel_Strago systems
firmware: dmi: Add DMI_PRODUCT_FAMILY identification string
pinctrl: core: Fix warning by removing bogus code
gpiolib: Add stubs for gpiod lookup table interface
Revert "pinctrl: generic: Add bi-directional and output-enable"
pinctrl: cherryview: Add terminate entry for dmi_system_id tables
This fixes a regression in commit 4d6501dce0 where I didn't notice
that MIPS and OpenRISC were reinitialising p->{set,clear}_child_tid to
NULL after our initialisation in copy_process().
We can simply get rid of the arch-specific initialisation here since it
is now always done in copy_process() before hitting copy_thread{,_tls}().
Review notes:
- As far as I can tell, copy_process() is the only user of
copy_thread_tls(), which is the only caller of copy_thread() for
architectures that don't implement copy_thread_tls().
- After this patch, there is no arch-specific code touching
p->set_child_tid or p->clear_child_tid whatsoever.
- It may look like MIPS/OpenRISC wanted to always have these fields be
NULL, but that's not true, as copy_process() would unconditionally
set them again _after_ calling copy_thread_tls() before commit
4d6501dce0.
Fixes: 4d6501dce0 ("kthread: Fix use-after-free if kthread fork fails")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net> # MIPS only
Acked-by: Stafford Horne <shorne@gmail.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: openrisc@lists.librecores.org
Cc: Jamie Iles <jamie.iles@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Filesystems filter out extended attributes in the "trusted." domain for
unprivlieged callers.
Overlay calls underlying filesystem's method with elevated privs, so need
to do the filtering in overlayfs too.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
An upper dir is marked "impure" to let ovl_iterate() know that this
directory may contain non pure upper entries whose d_ino may need to be
read from the origin inode.
We already mark a non-merge dir "impure" when moving a non-pure child
entry inside it, to let ovl_iterate() know not to iterate the non-merge
dir directly.
Mark also a merge dir "impure" when moving a non-pure child entry inside
it and when copying up a child entry inside it.
This can be used to optimize ovl_iterate() to perform a "pure merge" of
upper and lower directories, merging the content of the directories,
without having to read d_ino from origin inodes.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This patch removes unnecessary descriptions on
exynos_drm_crtc structure and adds one description
which specifies what pipe_clk member does.
pipe_clk support had been added by below patch without any description,
drm/exynos: add support for pipeline clock to the framework
Commit-id : f26b9343f5
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Since bridge node is referenced during in the probe, it should be
released on removal.
Suggested-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
The dsi + panel is a parental relationship, so OF grpah is not needed.
Therefore, the current dsi_parse_dt function will throw an error,
because there is no linked OF graph for the case fimd + dsi + panel.
Parse the Pll burst and esc clock frequency properties in dsi_parse_dt()
and create a bridge_node only if there is an OF graph associated with dsi.
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Again no apparent explanation for the split except hysterical raisins.
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Pull thermal SoC management fixes from Eduardo Valentin:
- fixes to TI SoC driver, Broadcom, qoriq
- small sparse warning fix on thermal core
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: broadcom: ns-thermal: default on iProc SoCs
ti-soc-thermal: Fix a typo in a comment line
ti-soc-thermal: Delete error messages for failed memory allocations in ti_bandgap_build()
ti-soc-thermal: Use devm_kcalloc() in ti_bandgap_build()
thermal: core: make thermal_emergency_poweroff static
thermal: qoriq: remove useless call for of_thermal_get_trip_points()
The overrun check for the size of submitted commands is off by one.
It should allow the offset plus the size to be equal to the
size of the memory object when the command stream is very tightly
constructed.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Amongst its other duties, msm_gem_new_impl adds the newly created
GEM object to the shared inactive list which may also be actively
modifiying the list during submission. All the paths to modify
the list are protected by the mutex except for the one through
msm_gem_import which can end up causing list corruption.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
[add extra WARN_ON(!mutex_is_locked(&dev->struct_mutex))]
Signed-off-by: Rob Clark <robdclark@gmail.com>
Use the dma_fence_match_context helper to check if all backing fences
are from our own context, in which case we don't have to wait.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Gustavo Padovan <gustavo.padovan@collabora.com>
[rebased on code-motion]
Signed-off-by: Rob Clark <robdclark@gmail.com>
struct irq_domain_ops is not modified, so it can be made const.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Rob Clark <robdclark@gmail.com>
If we follow the typical pattern of the base class being the first
member, we can use the default dma_fence_free function.
Signed-off-by: Eric Anholt <eric@anholt.net>
Cc: Rob Clark <robdclark@gmail.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Without this, polling on the dma-buf (and presumably other devices
synchronizing against our rendering) would return immediately, even
while the BO was busy.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Cc: Rob Clark <robdclark@gmail.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Otherwise if someone was using old bindings with "core_clk" instead of
"core" as the clock name, we'd never find it and gpu would be stuck at
27MHz (or whatever it's slowest rate is).
Fixes: 98db803 ("msm/drm: gpu: Dynamically locate the clocks from the device tree")
Signed-off-by: Rob Clark <robdclark@gmail.com>
Otherwise, if nothing else enabled selects it, dev_pm_opp_of_add_table()
will return -ENOTSUPP.
Fixes: e2af8b6 ("drm/msm: gpu: Use OPP tables if we can")
Signed-off-by: Rob Clark <robdclark@gmail.com>
Here are some serial and tty fixes for 4.12-rc3. They are a bit
"bigger" than normal, which is why I had them "bake" in linux-next for a
few weeks and didn't send them to you for -rc2.
They revert a few of the serdev patches from 4.12-rc1, and bring things
back to how they were in 4.11, to try to make things a bit more stable
there. Rob and Johan both agree that this is the way forward, so this
isn't people squabbling over semantics. Other than that, just a few
minor serial driver fixes that people have had problems with.
All of these have been in linux-next for a few weeks with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some serial and tty fixes for 4.12-rc3. They are a bit bigger
than normal, which is why I had them bake in linux-next for a few
weeks and didn't send them to you for -rc2.
They revert a few of the serdev patches from 4.12-rc1, and bring
things back to how they were in 4.11, to try to make things a bit more
stable there. Rob and Johan both agree that this is the way forward,
so this isn't people squabbling over semantics. Other than that, just
a few minor serial driver fixes that people have had problems with.
All of these have been in linux-next for a few weeks with no reported
issues"
* tag 'tty-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: altera_uart: call iounmap() at driver remove
serial: imx: ensure UCR3 and UFCR are setup correctly
MAINTAINERS/serial: Change maintainer of jsm driver
serial: enable serdev support
tty/serdev: add serdev registration interface
serdev: Restore serdev_device_write_buf for atomic context
serial: core: fix crash in uart_suspend_port
tty: fix port buffer locking
tty: ehv_bytechan: clean up init error handling
serial: ifx6x60: fix use-after-free on module unload
serial: altera_jtaguart: adding iounmap()
serial: exar: Fix stuck MSIs
serial: efm32: Fix parity management in 'efm32_uart_console_get_options()'
serdev: fix tty-port client deregistration
Revert "tty_port: register tty ports with serdev bus"
drivers/tty: 8250: only call fintek_8250_probe when doing port I/O
Fix running SPU programs on Cell, and a few other minor fixes.
Thanks to:
Alistair Popple, Jeremy Kerr, Michael Neuling, Nicholas Piggin.
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Merge tag 'powerpc-4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fix running SPU programs on Cell, and a few other minor fixes.
Thanks to Alistair Popple, Jeremy Kerr, Michael Neuling, Nicholas
Piggin"
* tag 'powerpc-4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Add PPC_FEATURE userspace bits for SCV and DARN instructions
powerpc/spufs: Fix hash faults for kernel regions
powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N
powerpc/powernv/npu-dma.c: Fix opal_npu_destroy_context() call
selftests/powerpc: Fix TM resched DSCR test with some compilers
Pull x86 fixes from Thomas Gleixner:
"A series of fixes for X86:
- The final fix for the end-of-stack issue in the unwinder
- Handle non PAT systems gracefully
- Prevent access to uninitiliazed memory
- Move early delay calaibration after basic init
- Fix Kconfig help text
- Fix a cross compile issue
- Unbreak older make versions"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/timers: Move simple_udelay_calibration past init_hypervisor_platform
x86/alternatives: Prevent uninitialized stack byte read in apply_alternatives()
x86/PAT: Fix Xorg regression on CPUs that don't support PAT
x86/watchdog: Fix Kconfig help text file path reference to lockup watchdog documentation
x86/build: Permit building with old make versions
x86/unwind: Add end-of-stack check for ftrace handlers
Revert "x86/entry: Fix the end of the stack for newly forked tasks"
x86/boot: Use CROSS_COMPILE prefix for readelf
Pull timer fixlet from Thomas Gleixner:
"Silence dmesg spam by making the posix cpu timer printks depend on
print_fatal_signals"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-timers: Make signal printks conditional
Pull RAS fixes from Thomas Gleixner:
"Two fixlets for RAS:
- Export memory_error() so the NFIT module can utilize it
- Handle memory errors in NFIT correctly"
* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
acpi, nfit: Fix the memory error check in nfit_handle_mce()
x86/MCE: Export memory_error()
Pull perf tooling fixes from Thomas Gleixner:
- Synchronization of tools and kernel headers
- A series of fixes for perf report addressing various failures:
* Handle invalid maps proper
* Plug a memory leak
* Handle frames and callchain order correctly
- Fixes for handling inlines and children mode
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools/include: Sync kernel ABI headers with tooling headers
perf tools: Put caller above callee in --children mode
perf report: Do not drop last inlined frame
perf report: Always honor callchain order for inlined nodes
perf script: Add --inline option for debugging
perf report: Fix off-by-one for non-activation frames
perf report: Fix memory leak in addr2line when called by addr2inlines
perf report: Don't crash on invalid maps in `-g srcline` mode
Pull locking fix from Thomas Gleixner:
"A fix for a state leak which was introduced in the recent rework of
futex/rtmutex interaction"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex,rt_mutex: Fix rt_mutex_cleanup_proxy_lock()
Pull kthread fix from Thomas Gleixner:
"A single fix which prevents a use after free when kthread fork fails"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kthread: Fix use-after-free if kthread fork fails
One was simply a memory leak where not all was being freed that should
have been in releasing a file pointer on set_graph_function.
Then Thomas found that the ftrace trampolines were marked for read/write
as well as execute. To shrink the possible attack surface, he added
calls to set them to ro. Which also uncovered some other issues with
freeing module allocated memory that had its permissions changed.
Kprobes had a similar issue which is fixed and a selftest was added
to trigger that issue again.
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Merge tag 'trace-v4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull ftrace fixes from Steven Rostedt:
"There's been a few memory issues found with ftrace.
One was simply a memory leak where not all was being freed that should
have been in releasing a file pointer on set_graph_function.
Then Thomas found that the ftrace trampolines were marked for
read/write as well as execute. To shrink the possible attack surface,
he added calls to set them to ro. Which also uncovered some other
issues with freeing module allocated memory that had its permissions
changed.
Kprobes had a similar issue which is fixed and a selftest was added to
trigger that issue again"
* tag 'trace-v4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
x86/ftrace: Make sure that ftrace trampolines are not RWX
x86/mm/ftrace: Do not bug in early boot on irqs_disabled in cpu_flush_range()
selftests/ftrace: Add a testcase for many kprobe events
kprobes/x86: Fix to set RWX bits correctly before releasing trampoline
ftrace: Fix memory leak in ftrace_graph_release()
ftrace use module_alloc() to allocate trampoline pages. The mapping of
module_alloc() is RWX, which makes sense as the memory is written to right
after allocation. But nothing makes these pages RO after writing to them.
Add proper set_memory_rw/ro() calls to protect the trampolines after
modification.
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1705251056410.1862@nanos
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
With function tracing starting in early bootup and having its trampoline
pages being read only, a bug triggered with the following:
kernel BUG at arch/x86/mm/pageattr.c:189!
invalid opcode: 0000 [#1] SMP
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 4.12.0-rc2-test+ #3
Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014
task: ffffffffb4222500 task.stack: ffffffffb4200000
RIP: 0010:change_page_attr_set_clr+0x269/0x302
RSP: 0000:ffffffffb4203c88 EFLAGS: 00010046
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 00000001b6000000
RDX: ffffffffb4203d40 RSI: 0000000000000000 RDI: ffffffffb4240d60
RBP: ffffffffb4203d18 R08: 00000001b6000000 R09: 0000000000000001
R10: ffffffffb4203aa8 R11: 0000000000000003 R12: ffffffffc029b000
R13: ffffffffb4203d40 R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff9a639ea00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9a636b384000 CR3: 00000001ea21d000 CR4: 00000000000406b0
Call Trace:
change_page_attr_clear+0x1f/0x21
set_memory_ro+0x1e/0x20
arch_ftrace_update_trampoline+0x207/0x21c
? ftrace_caller+0x64/0x64
? 0xffffffffc029b000
ftrace_startup+0xf4/0x198
register_ftrace_function+0x26/0x3c
function_trace_init+0x5e/0x73
tracer_init+0x1e/0x23
tracing_set_tracer+0x127/0x15a
register_tracer+0x19b/0x1bc
init_function_trace+0x90/0x92
early_trace_init+0x236/0x2b3
start_kernel+0x200/0x3f5
x86_64_start_reservations+0x29/0x2b
x86_64_start_kernel+0x17c/0x18f
secondary_startup_64+0x9f/0x9f
? secondary_startup_64+0x9f/0x9f
Interrupts should not be enabled at this early in the boot process. It is
also fine to leave interrupts enabled during this time as there's only one
CPU running, and on_each_cpu() means to only run on the current CPU.
If early_boot_irqs_disabled is set, it is safe to run cpu_flush_range() with
interrupts disabled. Don't trigger a BUG_ON() in that case.
Link: http://lkml.kernel.org/r/20170526093717.0be3b849@gandalf.local.home
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Add a testcase to test kprobes via ftrace interface
with many concurrent kprobe events.
This tries to add many kprobe events (up to 256) on
kernel functions. To avoid making ftrace-based
kprobes (kprobes on fentry), it skips first N bytes
(on x86 N=5, on ppc or arm N=4) of function entry.
After that, it enables all those events, disable it,
and remove it.
Since the unoptimization buffer reclaiming will
be delayed, after removing events, it will wait
enough time.
Link: http://lkml.kernel.org/r/149577388470.11702.11832460851769204511.stgit@devbox
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Fix kprobes to set(recover) RWX bits correctly on trampoline
buffer before releasing it. Releasing readonly page to
module_memfree() crash the kernel.
Without this fix, if kprobes user register a bunch of kprobes
in function body (since kprobes on function entry usually
use ftrace) and unregister it, kernel hits a BUG and crash.
Link: http://lkml.kernel.org/r/149570868652.3518.14120169373590420503.stgit@devbox
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: d0381c81c2 ("kprobes/x86: Set kprobes pages read-only")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Pull input layer fixes from Dmitry Torokhov:
"Just a few fixups to a couple of drivers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - ignore signals when finishing updating firmware
Input: elan_i2c - clear INT before resetting controller
Input: atmel_mxt_ts - add T100 as a readable object
Input: edt-ft5x06 - increase allowed data range for threshold parameter
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Merge tag 'led_fixes_for_4-12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED fix from Jacek Anaszewski:
"A single LED fix for 4.12-rc3.
leds-pca955x driver uses only i2c_smbus API and thus it should pass
I2C_FUNC_SMBUS_BYTE_DATA flag to i2c_check_functionality"
* tag 'led_fixes_for_4-12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
leds: pca955x: Correct I2C Functionality
Pull networking fixes from David Miller:
1) Fix state pruning in bpf verifier wrt. alignment, from Daniel
Borkmann.
2) Handle non-linear SKBs properly in SCTP ICMP parsing, from Davide
Caratti.
3) Fix bit field definitions for rss_hash_type of descriptors in mlx5
driver, from Jesper Brouer.
4) Defer slave->link updates until bonding is ready to do a full commit
to the new settings, from Nithin Sujir.
5) Properly reference count ipv4 FIB metrics to avoid use after free
situations, from Eric Dumazet and several others including Cong Wang
and Julian Anastasov.
6) Fix races in llc_ui_bind(), from Lin Zhang.
7) Fix regression of ESP UDP encapsulation for TCP packets, from
Steffen Klassert.
8) Fix mdio-octeon driver Kconfig deps, from Randy Dunlap.
9) Fix regression in setting DSCP on ipv6/GRE encapsulation, from Peter
Dawson.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
ipv4: add reference counting to metrics
net: ethernet: ax88796: don't call free_irq without request_irq first
ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets
sctp: fix ICMP processing if skb is non-linear
net: llc: add lock_sock in llc_ui_bind to avoid a race condition
bonding: Don't update slave->link until ready to commit
test_bpf: Add a couple of tests for BPF_JSGE.
bpf: add various verifier test cases
bpf: fix wrong exposure of map_flags into fdinfo for lpm
bpf: add bpf_clone_redirect to bpf_helper_changes_pkt_data
bpf: properly reset caller saved regs after helper call and ld_abs/ind
bpf: fix incorrect pruning decision when alignment must be tracked
arp: fixed -Wuninitialized compiler warning
tcp: avoid fastopen API to be used on AF_UNSPEC
net: move somaxconn init from sysctl code
net: fix potential null pointer dereference
geneve: fix fill_info when using collect_metadata
virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
be2net: Fix offload features for Q-in-Q packets
vlan: Fix tcp checksum offloads in Q-in-Q vlans
...
- Fix indlen block reservation accounting bug when splitting delalloc extent
- Fix warnings about unused variables that appeared in -rc1.
- Don't spew errors when bmapping a local format directory
- Fix an off-by-one error in a delalloc eof assertion
- Make fsmap only return inode information for CAP_SYS_ADMIN
- Fix a potential mount time deadlock recovering cow extents
- Fix unaligned memory access in _btree_visit_blocks
- Fix various SEEK_HOLE/SEEK_DATA bugs
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Merge tag 'xfs-4.12-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull XFS fixes from Darrick Wong:
"A few miscellaneous bug fixes & cleanups:
- Fix indlen block reservation accounting bug when splitting delalloc
extent
- Fix warnings about unused variables that appeared in -rc1.
- Don't spew errors when bmapping a local format directory
- Fix an off-by-one error in a delalloc eof assertion
- Make fsmap only return inode information for CAP_SYS_ADMIN
- Fix a potential mount time deadlock recovering cow extents
- Fix unaligned memory access in _btree_visit_blocks
- Fix various SEEK_HOLE/SEEK_DATA bugs"
* tag 'xfs-4.12-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: Move handling of missing page into one place in xfs_find_get_desired_pgoff()
xfs: Fix off-by-in in loop termination in xfs_find_get_desired_pgoff()
xfs: Fix missed holes in SEEK_HOLE implementation
xfs: fix off-by-one on max nr_pages in xfs_find_get_desired_pgoff()
xfs: fix unaligned access in xfs_btree_visit_blocks
xfs: avoid mount-time deadlock in CoW extent recovery
xfs: only return detailed fsmap info if the caller has CAP_SYS_ADMIN
xfs: bad assertion for delalloc an extent that start at i_size
xfs: fix warnings about unused stack variables
xfs: BMAPX shouldn't barf on inline-format directories
xfs: fix indlen accounting error on partial delalloc conversion
