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Fixes come with:
* Fix for compile warning in AMD IOMMU driver with irq remapping
disabled
* Fix for VT-d interrupt remapping and invalidation size (caused
a BUG_ON when trying to invalidate more than 4GB)
* Build fix and a regression fix for broken graphics with old
DTS for the rockchip iommu driver
* A revert in PCI window reservation code which fixes a
regression with VFIO.
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Merge tag 'iommu-fixes-v4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
- fix a compile warning in the AMD IOMMU driver with irq remapping
disabled
- fix for VT-d interrupt remapping and invalidation size (caused a
BUG_ON when trying to invalidate more than 4GB)
- build fix and a regression fix for broken graphics with old DTS for
the rockchip iommu driver
- a revert in the PCI window reservation code which fixes a regression
with VFIO.
* tag 'iommu-fixes-v4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu: rockchip: fix building without CONFIG_OF
iommu/vt-d: Use WARN_ON_ONCE instead of BUG_ON in qi_flush_dev_iotlb()
iommu/vt-d: fix shift-out-of-bounds in bug checking
iommu/dma: Move PCI window region reservation back into dma specific path.
iommu/rockchip: Make clock handling optional
iommu/amd: Hide unused iommu_table_lock
iommu/vt-d: Fix usage of force parameter in intel_ir_reconfigure_irte()
Pull irq fix from Thomas Gleixner:
"A single fix to prevent false positives in the spurious interrupt
detector when more than a single demultiplex register is evaluated in
the Qualcom irq combiner driver"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/qcom: Fix check for spurious interrupts
We missed a case in the Dell config dependencies resulting in a possible bad
configuration, resolve it by giving up on trying to keep DELL_LAPTOP visible in
the menu and make it depend on DELL_SMBIOS.
Fix a null pointer dereference at module unload for the asus-wireless driver.
The following is an automated git shortlog grouped by driver:
Kconfig:
- Fix dell-laptop dependency chain.
asus-wireless:
- Fix NULL pointer dereference
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Merge tag 'platform-drivers-x86-v4.17-2' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fixes from Darren Hart:
- We missed a case in the Dell config dependencies resulting in a
possible bad configuration, resolve it by giving up on trying to keep
DELL_LAPTOP visible in the menu and make it depend on DELL_SMBIOS.
- Fix a null pointer dereference at module unload for the asus-wireless
driver.
* tag 'platform-drivers-x86-v4.17-2' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: Kconfig: Fix dell-laptop dependency chain.
platform/x86: asus-wireless: Fix NULL pointer dereference
Here are some USB driver fixes for 4.17-rc4.
The majority of them are some USB gadget fixes that missed my last pull
request. The "largest" patch in here is a fix for the old visor driver
that syzbot found 6 months or so ago and I finally remembered to fix it.
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-4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB driver fixes for 4.17-rc4.
The majority of them are some USB gadget fixes that missed my last
pull request. The "largest" patch in here is a fix for the old visor
driver that syzbot found 6 months or so ago and I finally remembered
to fix it.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
Revert "usb: host: ehci: Use dma_pool_zalloc()"
usb: typec: tps6598x: handle block reads separately with plain-I2C adapters
usb: typec: tcpm: Release the role mux when exiting
USB: Accept bulk endpoints with 1024-byte maxpacket
xhci: Fix use-after-free in xhci_free_virt_device
USB: serial: visor: handle potential invalid device configuration
USB: serial: option: adding support for ublox R410M
usb: musb: trace: fix NULL pointer dereference in musb_g_tx()
usb: musb: host: fix potential NULL pointer dereference
usb: gadget: composite Allow for larger configuration descriptors
usb: dwc3: gadget: Fix list_del corruption in dwc3_ep_dequeue
usb: dwc3: gadget: dwc3_gadget_del_and_unmap_request() can be static
usb: dwc2: pci: Fix error return code in dwc2_pci_probe()
usb: dwc2: WA for Full speed ISOC IN in DDMA mode.
usb: dwc2: dwc2_vbus_supply_init: fix error check
usb: gadget: f_phonet: fix pn_net_xmit()'s return type
window for the driver that got merged in the merge window. Plus a
warning fix for unused PM ops and a couple fixes for the meson clk
driver clk names that went unnoticed with the regmap rework. There's
also another fix in here for the mux rounding flag which wasn't doing
what it said it did, but now it does.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes froom Stephen Boyd:
"A handful of fixes for the stm32mp1 clk driver came in during the
merge window for the driver that got merged in the merge window.
Plus a warning fix for unused PM ops and a couple fixes for the meson
clk driver clk names that went unnoticed with the regmap rework.
There's also another fix in here for the mux rounding flag which
wasn't doing what it said it did, but now it does"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: meson: meson8b: fix meson8b_cpu_clk parent clock name
clk: meson: meson8b: fix meson8b_fclk_div3_div clock name
clk: meson: drop meson_aoclk_gate_regmap_ops
clk: meson: honor CLK_MUX_ROUND_CLOSEST in clk_regmap
clk: honor CLK_MUX_ROUND_CLOSEST in generic clk mux
clk: cs2000: mark resume function as __maybe_unused
clk: stm32mp1: remove ck_apb_dbg clock
clk: stm32mp1: set stgen_k clock as critical
clk: stm32mp1: add missing tzc2 clock
clk: stm32mp1: fix SAI3 & SAI4 clocks
clk: stm32mp1: remove unused dfsdm_src[] const
clk: stm32mp1: add missing static
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Merge tag 'drm-fixes-for-v4.17-rc4' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"vmwgfx, i915, vc4, vga dac fixes.
This seems eerily quiet, so I expect it will explode next week or
something.
One i915 model firmware, two vmwgfx fixes, one vc4 fix and one bridge
leak fix"
* tag 'drm-fixes-for-v4.17-rc4' of git://people.freedesktop.org/~airlied/linux:
drm/bridge: vga-dac: Fix edid memory leak
drm/vc4: Make sure vc4_bo_{inc,dec}_usecnt() calls are balanced
drm/i915/glk: Add MODULE_FIRMWARE for Geminilake
drm/vmwgfx: Fix a buffer object leak
drm/vmwgfx: Clean up fbdev modeset locking
- Various build fixes (USER_ACCESS=m and ADDR_TRANS turned off)
- SPDX license tag cleanups (new tag Linux-OpenIB)
- RoCE GID fixes related to default GIDs
- Various fixes to: cxgb4, uverbs, cma, iwpm, rxe, hns (big batch),
mlx4, mlx5, and hfi1 (medium batch)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Doug Ledford:
"This is our first pull request of the rc cycle. It's not that it's
been overly quiet, we were just waiting on a few things before sending
this off.
For instance, the 6 patch series from Intel for the hfi1 driver had
actually been pulled in on Tuesday for a Wednesday pull request, only
to have Jason notice something I missed, so we held off for some
testing, and then on Thursday had to respin the series because the
very first patch needed a minor fix (unnecessary cast is all).
There is a sizable hns patch series in here, as well as a reasonably
largish hfi1 patch series, then all of the lines of uapi updates are
just the change to the new official Linux-OpenIB SPDX tag (a bunch of
our files had what amounts to a BSD-2-Clause + MIT Warranty statement
as their license as a result of the initial code submission years ago,
and the SPDX folks decided it was unique enough to warrant a unique
tag), then the typical mlx4 and mlx5 updates, and finally some cxgb4
and core/cache/cma updates to round out the bunch.
None of it was overly large by itself, but in the 2 1/2 weeks we've
been collecting patches, it has added up :-/.
As best I can tell, it's been through 0day (I got a notice about my
last for-next push, but not for my for-rc push, but Jason seems to
think that failure messages are prioritized and success messages not
so much). It's also been through linux-next. And yes, we did notice in
the context portion of the CMA query gid fix patch that there is a
dubious BUG_ON() in the code, and have plans to audit our BUG_ON usage
and remove it anywhere we can.
Summary:
- Various build fixes (USER_ACCESS=m and ADDR_TRANS turned off)
- SPDX license tag cleanups (new tag Linux-OpenIB)
- RoCE GID fixes related to default GIDs
- Various fixes to: cxgb4, uverbs, cma, iwpm, rxe, hns (big batch),
mlx4, mlx5, and hfi1 (medium batch)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (52 commits)
RDMA/cma: Do not query GID during QP state transition to RTR
IB/mlx4: Fix integer overflow when calculating optimal MTT size
IB/hfi1: Fix memory leak in exception path in get_irq_affinity()
IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure
IB/hfi1: Fix NULL pointer dereference when invalid num_vls is used
IB/hfi1: Fix loss of BECN with AHG
IB/hfi1 Use correct type for num_user_context
IB/hfi1: Fix handling of FECN marked multicast packet
IB/core: Make ib_mad_client_id atomic
iw_cxgb4: Atomically flush per QP HW CQEs
IB/uverbs: Fix kernel crash during MR deregistration flow
IB/uverbs: Prevent reregistration of DM_MR to regular MR
RDMA/mlx4: Add missed RSS hash inner header flag
RDMA/hns: Fix a couple misspellings
RDMA/hns: Submit bad wr
RDMA/hns: Update assignment method for owner field of send wqe
RDMA/hns: Adjust the order of cleanup hem table
RDMA/hns: Only assign dqpn if IB_QP_PATH_DEST_QPN bit is set
RDMA/hns: Remove some unnecessary attr_mask judgement
RDMA/hns: Only assign mtu if IB_QP_PATH_MTU bit is set
...
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Merge tag 'for-linus-20180504' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A collection of fixes that should to into this release. This contains:
- Set of bcache fixes from Coly, fixing regression in patches that
went into this series.
- Set of NVMe fixes by way of Keith.
- Set of bdi related fixes, one from Jan and two from Tetsuo Handa,
fixing various issues around device addition/removal.
- Two block inflight fixes from Omar, fixing issues around the
transition to using tags for blk-mq inflight accounting that we
did a few releases ago"
* tag 'for-linus-20180504' of git://git.kernel.dk/linux-block:
bdi: Fix oops in wb_workfn()
nvmet: switch loopback target state to connecting when resetting
nvme/multipath: Fix multipath disabled naming collisions
nvme/multipath: Disable runtime writable enabling parameter
nvme: Set integrity flag for user passthrough commands
nvme: fix potential memory leak in option parsing
bdi: Fix use after free bug in debugfs_remove()
bdi: wake up concurrent wb_shutdown() callers.
bcache: use pr_info() to inform duplicated CACHE_SET_IO_DISABLE set
bcache: set dc->io_disable to true in conditional_stop_bcache_device()
bcache: add wait_for_kthread_stop() in bch_allocator_thread()
bcache: count backing device I/O error for writeback I/O
bcache: set CACHE_SET_IO_DISABLE in bch_cached_dev_error()
bcache: store disk name in struct cache and struct cached_dev
blk-mq: fix sysfs inflight counter
blk-mq: count allocated but not started requests in iostats inflight
Here's a fix for a long-standing issue in the visor driver, which could
have security implications. Included is also a new modem device id.
Both commits have been in linux-next for a couple of days with no
reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.17-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v4.17-rc4
Here's a fix for a long-standing issue in the visor driver, which could
have security implications. Included is also a new modem device id.
Both commits have been in linux-next for a couple of days with no
reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
This reverts commit 22072e83ebd510fb6a090aef9d65ccfda9b1e7e4 as it is
broken.
Alan writes:
What you can't see just from reading the patch is that in both
cases (ehci->itd_pool and ehci->sitd_pool) there are two
allocation paths -- the two branches of an "if" statement -- and
only one of the paths calls dma_pool_[z]alloc. However, the
memset is needed for both paths, and so it can't be eliminated.
Given that it must be present, there's no advantage to calling
dma_pool_zalloc rather than dma_pool_alloc.
Reported-by: Erick Cafferata <erick@cafferata.me>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As reported by Randy Dunlap:
>> WARNING: unmet direct dependencies detected for DELL_SMBIOS
>> Depends on [m]: X86 [=y] && X86_PLATFORM_DEVICES [=y]
>> && (DCDBAS [=m] ||
>> DCDBAS [=m]=n) && (ACPI_WMI [=n] || ACPI_WMI [=n]=n)
>> Selected by [y]:
>> - DELL_LAPTOP [=y] && X86 [=y] && X86_PLATFORM_DEVICES [=y]
>> && DMI [=y]
>> && BACKLIGHT_CLASS_DEVICE [=y] && (ACPI_VIDEO [=n] ||
>> ACPI_VIDEO [=n]=n)
>> && (RFKILL [=n] || RFKILL [=n]=n) && SERIO_I8042 [=y]
>>
Right now it's possible to set dell laptop to compile in but this
causes dell-smbios to compile in which breaks if dcdbas is a module.
Dell laptop shouldn't select dell-smbios anymore, but depend on it.
Fixes: 32d7b19bad96 (platform/x86: dell-smbios: Resolve dependency error on DCDBAS)
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Cc: stable@vger.kernel.org
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
This fixes a regression from the 4.14 cycle in the CPPC cpufreq
driver causing it to use an incorrect transition delay value
which leads to a very high rate of frequency change requests when
the schedutil governor is in use (Prashanth Prakash).
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Merge tag 'pm-4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"This fixes a regression from the 4.14 cycle in the CPPC cpufreq driver
causing it to use an incorrect transition delay value which leads to a
very high rate of frequency change requests when the schedutil
governor is in use (Prashanth Prakash)"
* tag 'pm-4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq / CPPC: Set platform specific transition_delay_us
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Merge tag 'media/v4.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- a trivial one-line fix addressing a PTR_ERR() getting value from a
wrong var at imx driver
- a patch changing my e-mail at the Kernel tree to mchehab@kernel.org.
no code changes
* tag 'media/v4.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
MAINTAINERS & files: Canonize the e-mails I use at files
media: imx-media-csi: Fix inconsistent IS_ERR and PTR_ERR
From now on, I'll start using my @kernel.org as my development e-mail.
As such, let's remove the entries that point to the old
mchehab@s-opensource.com at MAINTAINERS file.
For the files written with a copyright with mchehab@s-opensource,
let's keep Samsung on their names, using mchehab+samsung@kernel.org,
in order to keep pointing to my employer, with sponsors the work.
For the files written before I join Samsung (on July, 4 2013),
let's just use mchehab@kernel.org.
For bug reports, we can simply point to just kernel.org, as
this will reach my mchehab+samsung inbox anyway.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Brian Warner <brian.warner@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Fix inconsistent IS_ERR and PTR_ERR in imx_csi_probe.
The proper pointer to be passed as argument is pinctrl
instead of priv->vdev.
This issue was detected with the help of Coccinelle.
Fixes: 52e17089d185 ("media: imx: Don't initialize vars that won't be used")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Pull networking fixes from David Miller:
1) Various sockmap fixes from John Fastabend (pinned map handling,
blocking in recvmsg, double page put, error handling during redirect
failures, etc.)
2) Fix dead code handling in x86-64 JIT, from Gianluca Borello.
3) Missing device put in RDS IB code, from Dag Moxnes.
4) Don't process fast open during repair mode in TCP< from Yuchung
Cheng.
5) Move address/port comparison fixes in SCTP, from Xin Long.
6) Handle add a bond slave's master into a bridge properly, from
Hangbin Liu.
7) IPv6 multipath code can operate on unitialized memory due to an
assumption that the icmp header is in the linear SKB area. Fix from
Eric Dumazet.
8) Don't invoke do_tcp_sendpages() recursively via TLS, from Dave
Watson.
9) Fix memory leaks in x86-64 JIT, from Daniel Borkmann.
10) RDS leaks kernel memory to userspace, from Eric Dumazet.
11) DCCP can invoke a tasklet on a freed socket, take a refcount. Also
from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (78 commits)
dccp: fix tasklet usage
smc: fix sendpage() call
net/smc: handle unregistered buffers
net/smc: call consolidation
qed: fix spelling mistake: "offloded" -> "offloaded"
net/mlx5e: fix spelling mistake: "loobpack" -> "loopback"
tcp: restore autocorking
rds: do not leak kernel memory to user land
qmi_wwan: do not steal interfaces from class drivers
ipv4: fix fnhe usage by non-cached routes
bpf: sockmap, fix error handling in redirect failures
bpf: sockmap, zero sg_size on error when buffer is released
bpf: sockmap, fix scatterlist update on error path in send with apply
net_sched: fq: take care of throttled flows before reuse
ipv6: Revert "ipv6: Allow non-gateway ECMP for IPv6"
bpf, x64: fix memleak when not converging on calls
bpf, x64: fix memleak when not converging after image
net/smc: restrict non-blocking connect finish
8139too: Use disable_irq_nosync() in rtl8139_poll_controller()
sctp: fix the issue that the cookie-ack with auth can't get processed
...
Two fixes for now, one for a long standing problem uncovered by a commit
in the 4.17 merge window, one for a regression introduced by a previous
bugfix, Cc'd stable.
* 'vmwgfx-fixes-4.17' of git://people.freedesktop.org/~thomash/linux:
drm/vmwgfx: Fix a buffer object leak
drm/vmwgfx: Clean up fbdev modeset locking
When commit [1] was added, SGID was queried to derive the SMAC address.
Then, later on during a refactor [2], SMAC was no longer needed. However,
the now useless GID query remained. Then during additional code changes
later on, the GID query was being done in such a way that it caused iWARP
queries to start breaking. Remove the useless GID query and resolve the
iWARP breakage at the same time.
This is discussed in [3].
[1] commit dd5f03beb4f7 ("IB/core: Ethernet L2 attributes in verbs/cm structures")
[2] commit 5c266b2304fb ("IB/cm: Remove the usage of smac and vid of qp_attr and cm_av")
[3] https://www.spinics.net/lists/linux-rdma/msg63951.html
Suggested-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When the kernel was compiled using the UBSAN option,
we saw the following stack trace:
[ 1184.827917] UBSAN: Undefined behaviour in drivers/infiniband/hw/mlx4/mr.c:349:27
[ 1184.828114] signed integer overflow:
[ 1184.828247] -2147483648 - 1 cannot be represented in type 'int'
The problem was caused by calling round_up in procedure
mlx4_ib_umem_calc_optimal_mtt_size (on line 349, as noted in the stack
trace) with the second parameter (1 << block_shift) (which is an int).
The second parameter should have been (1ULL << block_shift) (which
is an unsigned long long).
(1 << block_shift) is treated by the compiler as an int (because 1 is
an integer).
Now, local variable block_shift is initialized to 31.
If block_shift is 31, 1 << block_shift is 1 << 31 = 0x80000000=-214748368.
This is the most negative int value.
Inside the round_up macro, there is a cast applied to ((1 << 31) - 1).
However, this cast is applied AFTER ((1 << 31) - 1) is calculated.
Since (1 << 31) is treated as an int, we get the negative overflow
identified by UBSAN in the process of calculating ((1 << 31) - 1).
The fix is to change (1 << block_shift) to (1ULL << block_shift) on
line 349.
Fixes: 9901abf58368 ("IB/mlx4: Use optimal numbers of MTT entries")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When IRQ affinity is set and the interrupt type is unknown, a cpu
mask allocated within the function is never freed. Fix this memory
leak by allocating memory within the scope where it is used.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When allocating device data, if there's an allocation failure, the
already allocated memory won't be freed such as per-cpu counters.
Fix memory leaks in exception path by creating a common reentrant
clean up function hfi1_clean_devdata() to be used at driver unload
time and device data allocation failure.
To accomplish this, free_platform_config() and clean_up_i2c() are
changed to be reentrant to remove dependencies when they are called
in different order. This helps avoid NULL pointer dereferences
introduced by this patch if those two functions weren't reentrant.
In addition, set dd->int_counter, dd->rcv_limit,
dd->send_schedule and dd->tx_opstats to NULL after they're freed in
hfi1_clean_devdata(), so that hfi1_clean_devdata() is fully reentrant.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When an invalid num_vls is used as a module parameter, the code
execution follows an exception path where the macro dd_dev_err()
expects dd->pcidev->dev not to be NULL in hfi1_init_dd(). This
causes a NULL pointer dereference.
Fix hfi1_init_dd() by initializing dd->pcidev and dd->pcidev->dev
earlier in the code. If a dd exists, then dd->pcidev and
dd->pcidev->dev always exists.
BUG: unable to handle kernel NULL pointer dereference
at 00000000000000f0
IP: __dev_printk+0x15/0x90
Workqueue: events work_for_cpu_fn
RIP: 0010:__dev_printk+0x15/0x90
Call Trace:
dev_err+0x6c/0x90
? hfi1_init_pportdata+0x38d/0x3f0 [hfi1]
hfi1_init_dd+0xdd/0x2530 [hfi1]
? pci_conf1_read+0xb2/0xf0
? pci_read_config_word.part.9+0x64/0x80
? pci_conf1_write+0xb0/0xf0
? pcie_capability_clear_and_set_word+0x57/0x80
init_one+0x141/0x490 [hfi1]
local_pci_probe+0x3f/0xa0
work_for_cpu_fn+0x10/0x20
process_one_work+0x152/0x350
worker_thread+0x1cf/0x3e0
kthread+0xf5/0x130
? max_active_store+0x80/0x80
? kthread_bind+0x10/0x10
? do_syscall_64+0x6e/0x1a0
? SyS_exit_group+0x10/0x10
ret_from_fork+0x35/0x40
Cc: <stable@vger.kernel.org> # 4.9.x
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
AHG may be armed to use the stored header, which by design is limited
to edits in the PSN/A 32 bit word (bth2).
When the code is trying to send a BECN, the use of the stored header
will lose the BECN bit.
Fix by avoiding AHG when getting ready to send a BECN. This is
accomplished by always claiming the packet is not a middle packet which
is an AHG precursor. BECNs are not a normal case and this should not
hurt AHG optimizations.
Cc: <stable@vger.kernel.org> # 4.14.x
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The module parameter num_user_context is defined as 'int' and
defaults to -1. The module_param_named() says that it is uint.
Correct module_param_named() type information and update the modinfo
text to reflect the default value.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The code for handling a marked UD packet unconditionally returns the
dlid in the header of the FECN marked packet. This is not correct
for multicast packets where the DLID is in the multicast range.
The subsequent attempt to send the CNP with the multicast lid will
cause the chip to halt the ack send context because the source
lid doesn't match the chip programming. The send context will
be halted and flush any other pending packets in the pio ring causing
the CNP to not be sent.
A part of investigating the fix, it was determined that the 16B work
broke the FECN routine badly with inconsistent use of 16 bit and 32 bits
types for lids and pkeys. Since the port's source lid was correctly 32
bits the type mixmatches need to be dealt with at the same time as
fixing the CNP header issue.
Fix these issues by:
- Using the ports lid for as the SLID for responding to FECN marked UD
packets
- Insure pkey is always 16 bit in this and subordinate routines
- Insure lids are 32 bits in this and subordinate routines
Cc: <stable@vger.kernel.org> # 4.14.x
Fixes: 88733e3b8450 ("IB/hfi1: Add 16B UD support")
Reviewed-by: Don Hiatt <don.hiatt@intel.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Trivial fix to spelling mistake in DP_NOTICE message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the I2C adapter that the PD controller is attached to
does not support SMBus protocol, the driver needs to handle
block reads separately. The first byte returned in block
read protocol will show the total number of bytes. It needs
to be stripped away.
This is handled separately in the driver only because right
now we have no way of requesting the used protocol with
regmap-i2c. This is in practice a workaround for what is
really a problem in regmap-i2c. The other option would have
been to register custom regmap, or not use regmap at all,
however, since the solution is very simple, I choose to use
it in this case for convenience. It is easy to remove once
we figure out how to handle this kind of cases in
regmap-i2c.
Fixes: 0a4c005bd171 ("usb: typec: driver for TI TPS6598x USB Power Delivery controllers")
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The ref count for the USB role switch device must be
released after we are done using the switch.
Fixes: c6962c29729c ("usb: typec: tcpm: Set USB role switch to device mode when configured as such")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some non-compliant high-speed USB devices have bulk endpoints with a
1024-byte maxpacket size. Although such endpoints don't work with
xHCI host controllers, they do work with EHCI controllers. We used to
accept these invalid sizes (with a warning), but we no longer do
because of an unintentional change introduced by commit aed9d65ac327
("USB: validate wMaxPacketValue entries in endpoint descriptors").
This patch restores the old behavior, so that people with these
peculiar devices can use them without patching their kernels by hand.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Suggested-by: Elvinas <elvinas@veikia.lt>
Fixes: aed9d65ac327 ("USB: validate wMaxPacketValue entries in endpoint descriptors")
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Trivial fix to spelling mistake in netdev_err error message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
KASAN found a use-after-free in xhci_free_virt_device+0x33b/0x38e
where xhci_free_virt_device() sets slot id to 0 if udev exists:
if (dev->udev && dev->udev->slot_id)
dev->udev->slot_id = 0;
dev->udev will be true even if udev is freed because dev->udev is
not set to NULL.
set dev->udev pointer to NULL in xhci_free_dev()
The original patch went to stable so this fix needs to be applied
there as well.
Fixes: a400efe455f7 ("xhci: zero usb device slot_id member when disabling and freeing a xhci slot")
Cc: <stable@vger.kernel.org>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
After commit bb06ec31452f ("nvme: expand nvmf_check_if_ready checks")
resetting of the loopback nvme target failed as we forgot to switch
it's state to NVME_CTRL_CONNECTING before we reconnect the admin
queues. Therefore the checks in nvmf_check_if_ready() choose to go to
the reject_io case and thus we couldn't sent out an identify
controller command to reconnect.
Change the controller state to NVME_CTRL_CONNECTING after tearing down
the old connection and before re-establishing the connection.
Fixes: bb06ec31452f ("nvme: expand nvmf_check_if_ready checks")
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When CONFIG_NVME_MULTIPATH is set, but we're not using nvme to multipath,
namespaces with multiple paths were not creating unique names due to
reusing the same instance number from the namespace's head.
This patch fixes this by falling back to the non-multipath naming method
when the parameter disabled using multipath.
Reported-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We can't allow the user to change multipath settings at runtime, as this
will create naming conflicts due to the different naming schemes used
for each mode.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
If the command a separate metadata buffer attached, the request needs
to have the integrity flag set so the driver knows to map it.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When specifying same string type option several times,
current option parsing may cause memory leak. Hence,
call kfree for previous one in this case.
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The USB_DEVICE_INTERFACE_NUMBER matching macro assumes that
the { vendorid, productid, interfacenumber } set uniquely
identifies one specific function. This has proven to fail
for some configurable devices. One example is the Quectel
EM06/EP06 where the same interface number can be either
QMI or MBIM, without the device ID changing either.
Fix by requiring the vendor-specific class for interface number
based matching. Functions of other classes can and should use
class based matching instead.
Fixes: 03304bcb5ec4 ("net: qmi_wwan: use fixed interface number matching")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
We get a build error when compiling the iommu driver without CONFIG_OF:
drivers/iommu/rockchip-iommu.c: In function 'rk_iommu_of_xlate':
drivers/iommu/rockchip-iommu.c:1101:2: error: implicit declaration of function 'of_dev_put'; did you mean 'of_node_put'? [-Werror=implicit-function-declaration]
This replaces the of_dev_put() with the equivalent
platform_device_put().
Fixes: 5fd577c3eac3 ("iommu/rockchip: Use OF_IOMMU to attach devices automatically")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
It is possible that multiple I/O requests hits on failed cache device or
backing device, therefore it is quite common that CACHE_SET_IO_DISABLE is
set already when a task tries to set the bit from bch_cache_set_error().
Currently the message "CACHE_SET_IO_DISABLE already set" is printed by
pr_warn(), which might mislead users to think a serious fault happens in
source code.
This patch uses pr_info() to print the information in such situation,
avoid extra worries. This information is helpful to understand bcache
behavior in cache device failures, so I still keep them in source code.
Fixes: 771f393e8ffc9 ("bcache: add CACHE_SET_IO_DISABLE to struct cache_set flags")
Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit 7e027ca4b534b ("bcache: add stop_when_cache_set_failed option to
backing device") adds stop_when_cache_set_failed option and stops bcache
device if stop_when_cache_set_failed is auto and there is dirty data on
broken cache device. There might exists a small time gap that the cache
set is released and set to NULL but bcache device is not released yet
(because they are released in parallel). During this time gap, dc->c is
NULL so CACHE_SET_IO_DISABLE won't be checked, and dc->io_disable is still
false, so new coming I/O requests will be accepted and directly go into
backing device as no cache set attached to. If there is dirty data on
cache device, this behavior may introduce potential inconsistent data.
This patch sets dc->io_disable to true before calling bcache_device_stop()
to make sure the backing device will reject new coming I/O request as
well, so even in the small time gap no I/O will directly go into backing
device to corrupt data consistency.
Fixes: 7e027ca4b534b ("bcache: add stop_when_cache_set_failed option to backing device")
Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit c7b7bd07404c5 ("bcache: add io_disable to struct cached_dev")
counts backing device I/O requets and set dc->io_disable to true if error
counters exceeds dc->io_error_limit. But it only counts I/O errors for
regular I/O request, neglects errors of write back I/Os when backing device
is offline.
This patch counts the errors of writeback I/Os, in dirty_endio() if
bio->bi_status is not 0, it means error happens when writing dirty keys
to backing device, then bch_count_backing_io_errors() is called.
By this fix, even there is no reqular I/O request coming, if writeback I/O
errors exceed dc->io_error_limit, the bcache device may still be stopped
for the broken backing device.
Fixes: c7b7bd07404c5 ("bcache: add io_disable to struct cached_dev")
Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit c7b7bd07404c5 ("bcache: add io_disable to struct cached_dev") tries
to stop bcache device by calling bcache_device_stop() when too many I/O
errors happened on backing device. But if there is internal I/O happening
on cache device (writeback scan, garbage collection, etc), a regular I/O
request triggers the internal I/Os may still holds a refcount of dc->count,
and the refcount may only be dropped after the internal I/O stopped.
By this patch, bch_cached_dev_error() will check if the backing device is
attached to a cache set, if yes that CACHE_SET_IO_DISABLE will be set to
flags of this cache set. Then internal I/Os on cache device will be
rejected and stopped immediately, and the bcache device can be stopped.
For people who are not familiar with the interesting refcount dependance,
let me explain a bit more how the fix works. Example the writeback thread
will scan cache device for dirty data writeback purpose. Before it stopps,
it holds a refcount of dc->count. When CACHE_SET_IO_DISABLE bit is set,
the internal I/O will stopped and the while-loop in bch_writeback_thread()
quits and calls cached_dev_put() to drop dc->count. If this is the last
refcount to drop, then cached_dev_detach_finish() will be called. In this
call back function, in turn closure_put(dc->disk.cl) is called to drop a
refcount of closure dc->disk.cl. If this is the last refcount of this
closure to drop, then cached_dev_flush() will be called. Then the cached
device is freed. So if CACHE_SET_IO_DISABLE is not set, the bache device
can not be stopped until all inernal cache device I/O stopped. For large
size cache device, and writeback thread competes locks with gc thread,
there might be a quite long time to wait.
Fixes: c7b7bd07404c5 ("bcache: add io_disable to struct cached_dev")
Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Current code uses bdevname() or bio_devname() to reference gendisk
disk name when bcache needs to display the disk names in kernel message.
It was safe before bcache device failure handling patch set merged in,
because when devices are failed, there was deadlock to prevent bcache
printing error messages with gendisk disk name. But after the failure
handling patch set merged, the deadlock is fixed, so it is possible
that the gendisk structure bdev->hd_disk is released when bdevname() is
called to reference bdev->bd_disk->disk_name[]. This is why I receive
bug report of NULL pointers deference panic.
This patch stores gendisk disk name in a buffer inside struct cache and
struct cached_dev, then print out the offline device name won't reference
bdev->hd_disk anymore. And this patch also avoids extra function calls
of bdevname() and bio_devnmae().
Changelog:
v3, add Reviewed-by from Hannes.
v2, call bdevname() earlier in register_bdev()
v1, first version with segguestion from Junhui Tang.
Fixes: c7b7bd07404c5 ("bcache: add io_disable to struct cached_dev")
Fixes: 5138ac6748e38 ("bcache: fix misleading error message in bch_count_io_errors()")
Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This pretty much reverts commit 273df9635385 ("iommu/dma: Make PCI
window reservation generic") by moving the PCI window region
reservation back into the dma specific path so that these regions
doesn't get exposed via the IOMMU API interface. With this change,
the vfio interface will report only iommu specific reserved regions
to the user space.
Cc: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Fixes: 273df9635385 ('iommu/dma: Make PCI window reservation generic')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
