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The kernel test robot has reported that the use of __this_cpu_add()
causes bug messages like:
BUG: using __this_cpu_add() in preemptible [00000000] code: ...
Given the imprecise nature of the count and the possibility of resetting
the count and doing the measurement again, this is not really a big
problem to use the unprotected __this_cpu_*() functions.
To make the preemption checking code happy, the this_cpu_*() functions
will be used if CONFIG_DEBUG_PREEMPT is defined.
The imprecise nature of the locking counts are also documented with
the suggestion that we should run the measurement a few times with the
counts reset in between to get a better picture of what is going on
under the hood.
Fixes: a8654596f0371 ("locking/rwsem: Enable lock event counting")
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix incorrect LDADD instruction encoding in our disassembly macros
- Disable the broken ARM64_PSEUDO_NMI support for now
- Add workaround for Cortex-A76 CPU erratum #1463225
- Handle Cortex-A76/Neoverse-N1 erratum #1418040 w/ existing workaround
- Fix IORT build failure if IOMMU_SUPPORT=n
- Fix place-relative module relocation range checking and its
interaction with KASLR
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull more arm64 fixes from Will Deacon:
- Fix incorrect LDADD instruction encoding in our disassembly macros
- Disable the broken ARM64_PSEUDO_NMI support for now
- Add workaround for Cortex-A76 CPU erratum #1463225
- Handle Cortex-A76/Neoverse-N1 erratum #1418040 w/ existing workaround
- Fix IORT build failure if IOMMU_SUPPORT=n
- Fix place-relative module relocation range checking and its
interaction with KASLR
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: insn: Add BUILD_BUG_ON() for invalid masks
arm64: insn: Fix ldadd instruction encoding
arm64: Kconfig: Make ARM64_PSEUDO_NMI depend on BROKEN for now
arm64: Handle erratum 1418040 as a superset of erratum 1188873
arm64/module: deal with ambiguity in PRELxx relocation ranges
ACPI/IORT: Fix build error when IOMMU_SUPPORT is disabled
arm64/kernel: kaslr: reduce module randomization range to 2 GB
arm64: errata: Add workaround for Cortex-A76 erratum #1463225
arm64: Remove useless message during oops
Some of Intel Cherrytrail based platforms depend on PMC clock to be always on.
Here couple of quirks to the driver to support affected hardware.
The following is an automated git shortlog grouped by driver:
pmc_atom:
- Add several Beckhoff Automation boards to critclk_systems DMI table
- Add Lex 3I380D industrial PC to critclk_systems DMI table
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Merge tag 'platform-drivers-x86-v5.2-2' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fixes from Andy Shevchenko:
"Some of Intel Cherrytrail based platforms depend on PMC clock to be
always on. Here are a couple of quirks to the driver to support
affected hardware"
* tag 'platform-drivers-x86-v5.2-2' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: pmc_atom: Add several Beckhoff Automation boards to critclk_systems DMI table
platform/x86: pmc_atom: Add Lex 3I380D industrial PC to critclk_systems DMI table
Pull thermal SoC fixes from Eduardo Valentin:
- revert pinctrl settings on rockchip which causes boot failure on
rk3288. The proper follow-up patch is being discussed, meanwhile
the revert gets those booting again.
- minor fixes on rcar and tegra
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: rcar_gen3_thermal: Update temperature conversion method
thermal: rcar_gen3_thermal: Update calculation formula of IRQTEMP
thermal: rcar_gen3_thermal: Update value of Tj_1
thermal: tegra: Make tegra210_tsensor_thermtrips static
Revert "thermal: rockchip: fix up the tsadc pinctrl setting error"
- sdhci-iproc: Fix HS50 data hold time problem for a few variants
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Merge tag 'mmc-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"Fix HS50 data hold time problem for a few variants of sdhci-iproc"
* tag 'mmc-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-iproc: Set NO_HISPD bit to fix HS50 data hold time problem
mmc: sdhci-iproc: cygnus: Set NO_HISPD bit to fix HS50 data hold time problem
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Merge tag 'drm-fixes-2019-05-24-1' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Nothing too unusual here for rc2. Except the amdgpu DMCU firmware
loading fix caused build breakage with a different set of Kconfig
options. I've just reverted it for now until the AMD folks can rewrite
it to avoid that problem.
i915:
- boosting fix
- bump ready task fixes
- GVT - reset fix, error return, TRTT handling fix
amdgpu:
- DMCU firmware loading fix
- Polaris 10 pci id for kfd
- picasso screen corruption fix
- SR-IOV fixes
- vega driver reload fixes
- SMU locking fix
- compute profile fix for kfd
vmwgfx:
- integer overflow fixes
- dma sg fix
sun4i:
- HDMI phy fixes
gma500:
- LVDS detection fix
panfrost:
- devfreq selection fix"
* tag 'drm-fixes-2019-05-24-1' of git://anongit.freedesktop.org/drm/drm: (32 commits)
Revert "drm/amd/display: Don't load DMCU for Raven 1"
drm/panfrost: Select devfreq
drm/gma500/cdv: Check vbt config bits when detecting lvds panels
drm/vmwgfx: integer underflow in vmw_cmd_dx_set_shader() leading to an invalid read
drm/vmwgfx: NULL pointer dereference from vmw_cmd_dx_view_define()
drm/vmwgfx: Use the dma scatter-gather iterator to get dma addresses
drm/vmwgfx: Fix compat mode shader operation
drm/vmwgfx: Fix user space handle equal to zero
drm/vmwgfx: Don't send drm sysfs hotplug events on initial master set
drm/i915/gvt: Fix an error code in ppgtt_populate_spt_by_guest_entry()
drm/i915/gvt: do not let TRTTE and 0x4dfc write passthrough to hardware
drm/i915/gvt: add 0x4dfc to gen9 save-restore list
drm/i915/gvt: Tiled Resources mmios are in-context mmios for gen9+
drm/i915/gvt: use cmd to restore in-context mmios to hw for gen9 platform
drm/i915/gvt: emit init breadcrumb for gvt request
drm/amdkfd: Fix compute profile switching
drm/amdgpu: skip fw pri bo alloc for SRIOV
drm/amd/powerplay: fix locking in smu_feature_set_supported()
drm/amdgpu/gmc9: set vram_width properly for SR-IOV
drm/amdgpu/soc15: skip reset on init
...
Detect invalid instruction masks at build time. Some versions of GCC can
warn about the situation, but not all of them, it seems.
Suggested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
GCC 8.1.0 reports that the ldadd instruction encoding, recently added to
insn.c, doesn't match the mask and couldn't possibly be identified:
linux/arch/arm64/include/asm/insn.h: In function 'aarch64_insn_is_ldadd':
linux/arch/arm64/include/asm/insn.h:280:257: warning: bitwise comparison always evaluates to false [-Wtautological-compare]
Bits [31:30] normally encode the size of the instruction (1 to 8 bytes)
and the current instruction value only encodes the 4- and 8-byte
variants. At the moment only the BPF JIT needs this instruction, and
doesn't require the 1- and 2-byte variants, but to be consistent with
our other ldr and str instruction encodings, clear the size field in the
insn value.
Fixes: 34b8ab091f9ef57a ("bpf, arm64: use more scalable stadd over ldxr / stxr loop in xadd")
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Although we merged support for pseudo-nmi using interrupt priority
masking in 5.1, we've since uncovered a number of non-trivial issues
with the implementation. Although there are patches pending to address
these problems, we're facing issues that prevent us from merging them at
this current time:
https://lkml.kernel.org/r/1556553607-46531-1-git-send-email-julien.thierry@arm.com
For now, simply mark this optional feature as BROKEN in the hope that we
can fix things properly in the near future.
Cc: <stable@vger.kernel.org> # 5.1
Cc: Julien Thierry <julien.thierry@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This reverts commit 55143dc23ca4792868ea8c17bce65ca7b3d3e8c4.
This causes build breakags with some Kconfigs so revert for now.
Fixes: 55143dc23ca4 ("drm/amd/display: Don't load DMCU for Raven 1")
Signed-off-by: Dave Airlie <airlied@redhat.com>
Update the formula to calculate temperature:
Currently, current TEMP is calculated as
average of val1 (is calculated by formula 1)
and val2 (is calculated by formula 2). But,
as description in HWM (chapter 10A.3.1.2 Normal Mode.)
If (TEMP_CODE < THCODE2[11:0]) CTEMP value should be val1.
If (TEMP_CODE > THCODE2[11:0]) CTEMP value should be val2.
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Update the formula to calculate CTEMP:
Currently, the CTEMP is average of val1 (is calculated by
formula 1) and val2 (is calculated by formula 2). But,
as description in HWM (chapter 10A.3.1.1 Setting of Normal Mode)
If (STEMP < Tj_T) CTEMP value should be val1.
If (STEMP > Tj_T) CTEMP value should be val2.
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
As evaluation of hardware team, temperature calculation formula
of M3-W is difference from all other SoCs as below:
- M3-W: Tj_1: 116 (so Tj_1 - Tj_3 = 157)
- Others: Tj_1: 126 (so Tj_1 - Tj_3 = 167)
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Fix sparse warning:
drivers/thermal/tegra/tegra210-soctherm.c:211:33: warning:
symbol 'tegra210_tsensor_thermtrips' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This reverts commit 28694e009e512451ead5519dd801f9869acb1f60.
The commit causes multiple issues in that:
- the added call to ->control does potentially run unclocked
causing a hang of the machine
- the added pinctrl-states are undocumented in the binding
- the added pinctrl-states are not backwards compatible, breaking
old devicetrees.
Fixes: 28694e009e51 ("thermal: rockchip: fix up the tsadc pinctrl setting error")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reported-by: kernelci.org bot <bot@kernelci.org>
Reported-by: Enric Balletbo Serra <eballetbo@gmail.com>
Reported-by: Vicente Bergas <vicencb@gmail.com>
Reported-by: Jack Mitchell <ml@embed.me.uk>
Reported-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
- Fix an accounting mistake where we included the log space when
calculating the reserve space for metadata expansion.
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Merge tag 'xfs-5.2-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fix from Darrick Wong:
"Fix an accounting mistake where we included the log space when
calculating the reserve space for metadata expansion"
* tag 'xfs-5.2-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: don't reserve per-AG space for an internal log
spdxcheck.py script up with the current state of affairs.
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Merge tag 'docs-5.2-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A handful of fixes for a docs build problem, along with catching the
spdxcheck.py script up with the current state of affairs"
* tag 'docs-5.2-fixes' of git://git.lwn.net/linux:
Documentation: kdump: fix minor typo
scripts/spdxcheck.py: Add dual license subdirectory
scripts/spdxcheck.py: Fix path to deprecated licenses
counter: fix Documentation build error due to incorrect source file name
We already mitigate erratum 1188873 affecting Cortex-A76 and
Neoverse-N1 r0p0 to r2p0. It turns out that revisions r0p0 to
r3p1 of the same cores are affected by erratum 1418040, which
has the same workaround as 1188873.
Let's expand the range of affected revisions to match 1418040,
and repaint all occurences of 1188873 to 1418040. Whilst we're
there, do a bit of reformating in silicon-errata.txt and drop
a now unnecessary dependency on ARM_ARCH_TIMER_OOL_WORKAROUND.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
The R_AARCH64_PREL16 and R_AARCH64_PREL32 relocations are
documented as permitting a range of [-2^15 .. 2^16), resp.
[-2^31 .. 2^32). It is also documented that this means we
cannot detect overflow in some cases, which is bad.
Since we always interpret the targets of these relocations as
signed quantities (e.g., in the ksymtab handling code), let's
tighten the overflow checks so that targets that are out of
range for our signed interpretation of the relocated quantity
get flagged.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
If IOMMU_SUPPORT is not enabled (and therefore IOMMU_API is not
selected), struct iommu_fwspec is an empty struct and
IOMMU_FWSPEC_PCI_RC_ATS is not defined, resulting in the following
compilation errors:
drivers/acpi/arm64/iort.c: In function iort_iommu_configure:
drivers/acpi/arm64/iort.c:1079:21: error: struct iommu_fwspec has no member named flag:
dev->iommu_fwspec->flags |= IOMMU_FWSPEC_PCI_RC_ATS;
^~
drivers/acpi/arm64/iort.c:1079:32: error: IOMMU_FWSPEC_PCI_RC_ATS
undeclared (first use in this function)
dev->iommu_fwspec->flags |= IOMMU_FWSPEC_PCI_RC_ATS;
^~~~~~~~~~~~~~~~~~~~~~~
drivers/acpi/arm64/iort.c:1079:32: note: each undeclared identifier is reported only once for each function it appears in
Move iort_iommu_configure() (and the helpers functions it relies on)
into CONFIG_IOMMU_API preprocessor guarded code so that when
CONFIG_IOMMU_SUPPORT is not enabled we prevent compiling code that is
basically equivalent to no-OP, fixing the build errors.
Cc: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/linux-arm-kernel/20190515034253.79348-1-wangkefeng.wang@huawei.com/
Fixes: 5702ee24182f ("ACPI/IORT: Check ATS capability in root complex nodes")
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
The following commit
7290d5809571 ("module: use relative references for __ksymtab entries")
updated the ksymtab handling of some KASLR capable architectures
so that ksymtab entries are emitted as pairs of 32-bit relative
references. This reduces the size of the entries, but more
importantly, it gets rid of statically assigned absolute
addresses, which require fixing up at boot time if the kernel
is self relocating (which takes a 24 byte RELA entry for each
member of the ksymtab struct).
Since ksymtab entries are always part of the same module as the
symbol they export, it was assumed at the time that a 32-bit
relative reference is always sufficient to capture the offset
between a ksymtab entry and its target symbol.
Unfortunately, this is not always true: in the case of per-CPU
variables, a per-CPU variable's base address (which usually differs
from the actual address of any of its per-CPU copies) is allocated
in the vicinity of the ..data.percpu section in the core kernel
(i.e., in the per-CPU reserved region which follows the section
containing the core kernel's statically allocated per-CPU variables).
Since we randomize the module space over a 4 GB window covering
the core kernel (based on the -/+ 4 GB range of an ADRP/ADD pair),
we may end up putting the core kernel out of the -/+ 2 GB range of
32-bit relative references of module ksymtab entries that refer to
per-CPU variables.
So reduce the module randomization range a bit further. We lose
1 bit of randomization this way, but this is something we can
tolerate.
Cc: <stable@vger.kernel.org> # v4.19+
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Revisions of the Cortex-A76 CPU prior to r4p0 are affected by an erratum
that can prevent interrupts from being taken when single-stepping.
This patch implements a software workaround to prevent userspace from
effectively being able to disable interrupts.
Cc: <stable@vger.kernel.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
During an oops, we print the name of the current task and its pid twice.
We also helpfully advertise its stack limit as "0x(____ptrval____)".
Drop these useless messages.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Fixes for 5.2:
- Fix for DMCU firmware issues for stable
- Add missing polaris10 pci id to kfd
- Screen corruption fix on picasso
- Fix for driver reload on vega10
- SR-IOV fixes
- Locking fix in new SMU code
- Compute profile switching fix for KFD
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190522205425.3657-1-alexander.deucher@amd.com
- gma500 fix to make lvds detection more reliable
- select devfreq for panfrost since it can't probe without it
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Merge tag 'drm-misc-fixes-2019-05-22' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
- sun4i fixes to hdmi phy as well as u16 overflow in dsi (left from -next-fixes)
- gma500 fix to make lvds detection more reliable
- select devfreq for panfrost since it can't probe without it
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190522194440.GA22359@art_vandelay
A set of misc fixes for various issues that have surfaced recently.
All Cc'd stable except the dma iterator fix which shouldn't really cause
any real issues on older kernels.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: "Thomas Hellstrom (VMware)" <thomas@shipmail.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190522115408.33185-1-thomas@shipmail.org
Currently, there is some logic for the driver to work without devfreq.
However, the driver actually fails to probe if !CONFIG_PM_DEVFREQ.
Fix this by selecting devfreq, and drop the additional checks
for devfreq.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190517150042.776-1-ezequiel@collabora.com
- Fix SPE probe failure when backing auxbuf with high-order pages
- Fix handling of DMA allocations from outside of the vmalloc area
- Fix generation of build-id ELF section for vDSO object
- Disable huge I/O mappings if kernel page table dumping is enabled
- A few other minor fixes (comments, kconfig etc)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- Fix SPE probe failure when backing auxbuf with high-order pages
- Fix handling of DMA allocations from outside of the vmalloc area
- Fix generation of build-id ELF section for vDSO object
- Disable huge I/O mappings if kernel page table dumping is enabled
- A few other minor fixes (comments, kconfig etc)
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: vdso: Explicitly add build-id option
arm64/mm: Inhibit huge-vmap with ptdump
arm64: Print physical address of page table base in show_pte()
arm64: don't trash config with compat symbol if COMPAT is disabled
arm64: assembler: Update comment above cond_yield_neon() macro
drivers/perf: arm_spe: Don't error on high-order pages for aux buf
arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable
Pull networking fixes from David Miller:
1) Clear up some recent tipc regressions because of registration
ordering. Fix from Junwei Hu.
2) tipc's TLV_SET() can read past the end of the supplied buffer during
the copy. From Chris Packham.
3) ptp example program doesn't match the kernel, from Richard Cochran.
4) Outgoing message type fix in qrtr, from Bjorn Andersson.
5) Flow control regression in stmmac, from Tan Tee Min.
6) Fix inband autonegotiation in phylink, from Russell King.
7) Fix sk_bound_dev_if handling in rawv6_bind(), from Mike Manning.
8) Fix usbnet crash after disconnect, from Kloetzke Jan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
usbnet: fix kernel crash after disconnect
selftests: fib_rule_tests: use pre-defined DEV_ADDR
net-next: net: Fix typos in ip-sysctl.txt
ipv6: Consider sk_bound_dev_if when binding a raw socket to an address
net: phylink: ensure inband AN works correctly
usbnet: ipheth: fix racing condition
net: stmmac: dma channel control register need to be init first
net: stmmac: fix ethtool flow control not able to get/set
net: qrtr: Fix message type of outgoing packets
networking: : fix typos in code comments
ptp: Fix example program to match kernel.
fddi: fix typos in code comments
selftests: fib_rule_tests: enable forwarding before ipv4 from/iif test
selftests: fib_rule_tests: fix local IPv4 address typo
tipc: Avoid copying bytes beyond the supplied data
2/2] net: xilinx_emaclite: use readx_poll_timeout() in mdio wait function
1/2] net: axienet: use readx_poll_timeout() in mdio wait function
vlan: Mark expected switch fall-through
macvlan: Mark expected switch fall-through
net/mlx4_en: ethtool, Remove unsupported SFP EEPROM high pages query
...
doesn't properly trim special IOs (e.g. discards) relative to
corresponding target's max_io_len_target_boundary().
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Merge tag 'for-5.2/dm-fix-1' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fix from Mike Snitzer:
"Fix a particularly glaring oversight in a DM core commit from 5.1 that
doesn't properly trim special IOs (e.g. discards) relative to
corresponding target's max_io_len_target_boundary()"
* tag 'for-5.2/dm-fix-1' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: make sure to obey max_io_len_target_boundary
Commit 4d207133e9c3 changed the types of the statistic values in struct
gfs2_lkstats from s64 to u64. Because of that, what should be a signed
value in gfs2_update_stats turned into an unsigned value. When shifted
right, we end up with a large positive value instead of a small negative
value, which results in an incorrect variance estimate.
Fixes: 4d207133e9c3 ("gfs2: Make statistics unsigned, suitable for use with do_div()")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: stable@vger.kernel.org # v4.4+
Commit 61697a6abd24 ("dm: eliminate 'split_discard_bios' flag from DM
target interface") incorrectly removed code from
__send_changing_extent_only() that is required to impose a per-target IO
boundary on IO that exceeds max_io_len_target_boundary(). Otherwise
"special" IO (e.g. DISCARD, WRITE SAME, WRITE ZEROES) can write beyond
where allowed.
Fix this by restoring the max_io_len_target_boundary() limit in
__send_changing_extent_only()
Fixes: 61697a6abd24 ("dm: eliminate 'split_discard_bios' flag from DM target interface")
Cc: stable@vger.kernel.org # 5.1+
Signed-off-by: Michael Lass <bevan@bi-co.net>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
When disconnecting cdc_ncm the kernel sporadically crashes shortly
after the disconnect:
[ 57.868812] Unable to handle kernel NULL pointer dereference at virtual address 00000000
...
[ 58.006653] PC is at 0x0
[ 58.009202] LR is at call_timer_fn+0xec/0x1b4
[ 58.013567] pc : [<0000000000000000>] lr : [<ffffff80080f5130>] pstate: 00000145
[ 58.020976] sp : ffffff8008003da0
[ 58.024295] x29: ffffff8008003da0 x28: 0000000000000001
[ 58.029618] x27: 000000000000000a x26: 0000000000000100
[ 58.034941] x25: 0000000000000000 x24: ffffff8008003e68
[ 58.040263] x23: 0000000000000000 x22: 0000000000000000
[ 58.045587] x21: 0000000000000000 x20: ffffffc68fac1808
[ 58.050910] x19: 0000000000000100 x18: 0000000000000000
[ 58.056232] x17: 0000007f885aff8c x16: 0000007f883a9f10
[ 58.061556] x15: 0000000000000001 x14: 000000000000006e
[ 58.066878] x13: 0000000000000000 x12: 00000000000000ba
[ 58.072201] x11: ffffffc69ff1db30 x10: 0000000000000020
[ 58.077524] x9 : 8000100008001000 x8 : 0000000000000001
[ 58.082847] x7 : 0000000000000800 x6 : ffffff8008003e70
[ 58.088169] x5 : ffffffc69ff17a28 x4 : 00000000ffff138b
[ 58.093492] x3 : 0000000000000000 x2 : 0000000000000000
[ 58.098814] x1 : 0000000000000000 x0 : 0000000000000000
...
[ 58.205800] [< (null)>] (null)
[ 58.210521] [<ffffff80080f5298>] expire_timers+0xa0/0x14c
[ 58.215937] [<ffffff80080f542c>] run_timer_softirq+0xe8/0x128
[ 58.221702] [<ffffff8008081120>] __do_softirq+0x298/0x348
[ 58.227118] [<ffffff80080a6304>] irq_exit+0x74/0xbc
[ 58.232009] [<ffffff80080e17dc>] __handle_domain_irq+0x78/0xac
[ 58.237857] [<ffffff8008080cf4>] gic_handle_irq+0x80/0xac
...
The crash happens roughly 125..130ms after the disconnect. This
correlates with the 'delay' timer that is started on certain USB tx/rx
errors in the URB completion handler.
The problem is a race of usbnet_stop() with usbnet_start_xmit(). In
usbnet_stop() we call usbnet_terminate_urbs() to cancel all URBs in
flight. This only makes sense if no new URBs are submitted
concurrently, though. But the usbnet_start_xmit() can run at the same
time on another CPU which almost unconditionally submits an URB. The
error callback of the new URB will then schedule the timer after it was
already stopped.
The fix adds a check if the tx queue is stopped after the tx list lock
has been taken. This should reliably prevent the submission of new URBs
while usbnet_terminate_urbs() does its job. The same thing is done on
the rx side even though it might be safe due to other flags that are
checked there.
Signed-off-by: Jan Klötzke <Jan.Kloetzke@preh.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
DEV_ADDR is defined but not used. Use it in address setting.
Do the same with IPv6 for consistency.
Reported-by: David Ahern <dsahern@gmail.com>
Fixes: fc82d93e57e3 ("selftests: fib_rule_tests: fix local IPv4 address typo")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes some spelling typos found in ip-sysctl.txt
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
IPv6 does not consider if the socket is bound to a device when binding
to an address. The result is that a socket can be bound to eth0 and
then bound to the address of eth1. If the device is a VRF, the result
is that a socket can only be bound to an address in the default VRF.
Resolve by considering the device if sk_bound_dev_if is set.
Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Do not update the link interface mode while the link is down to avoid
spurious link interface changes.
Always call mac_config if we have a PHY to propagate the pause mode
settings to the MAC.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix a racing condition in ipheth.c that can lead to slow performance.
Bug: In ipheth_tx(), netif_wake_queue() may be called on the callback
ipheth_sndbulk_callback(), _before_ netif_stop_queue() is called.
When this happens, the queue is stopped longer than it needs to be,
thus reducing network performance.
Fix: Move netif_stop_queue() in front of usb_submit_urb(). Now the order
is always correct. In case, usb_submit_urb() fails, the queue is woken up
again as callback will not fire.
Testing: This racing condition is usually not noticeable, as it has to
occur very frequently to slowdown the network. The callback from the USB
is usually triggered slow enough, so the situation does not appear.
However, on a Ubuntu Linux on VMWare Workstation, running on Windows 10,
the we loose the race quite often and the following speedup can be noticed:
Without this patch: Download: 4.10 Mbit/s, Upload: 4.01 Mbit/s
With this patch: Download: 36.23 Mbit/s, Upload: 17.61 Mbit/s
Signed-off-by: Oliver Zweigle <Oliver.Zweigle@faro.com>
Signed-off-by: Bernd Eckstein <3ernd.Eckstein@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'selinux-pr-20190521' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull SELinux fix from Paul Moore:
"One small SELinux patch to fix a problem when disconnecting a SCTP
socket with connect(AF_UNSPEC)"
* tag 'selinux-pr-20190521' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: do not report error on connect(AF_UNSPEC)
Here are series of patches that add SPDX tags to different kernel files,
based on two different things:
- SPDX entries are added to a bunch of files that we missed a year ago
that do not have any license information at all.
These were either missed because the tool saw the MODULE_LICENSE()
tag, or some EXPORT_SYMBOL tags, and got confused and thought the
file had a real license, or the files have been added since the last
big sweep, or they were Makefile/Kconfig files, which we didn't
touch last time.
- Add GPL-2.0-only or GPL-2.0-or-later tags to files where our scan
tools can determine the license text in the file itself. Where this
happens, the license text is removed, in order to cut down on the
700+ different ways we have in the kernel today, in a quest to get
rid of all of these.
These patches have been out for review on the linux-spdx@vger mailing
list, and while they were created by automatic tools, they were
hand-verified by a bunch of different people, all whom names are on the
patches are reviewers.
The reason for these "large" patches is if we were to continue to
progress at the current rate of change in the kernel, adding license
tags to individual files in different subsystems, we would be finished
in about 10 years at the earliest.
There will be more series of these types of patches coming over the next
few weeks as the tools and reviewers crunch through the more "odd"
variants of how to say "GPLv2" that developers have come up with over
the years, combined with other fun oddities (GPL + a BSD disclaimer?)
that are being unearthed, with the goal for the whole kernel to be
cleaned up.
These diffstats are not small, 3840 files are touched, over 10k lines
removed in just 24 patches.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull SPDX update from Greg KH:
"Here is a series of patches that add SPDX tags to different kernel
files, based on two different things:
- SPDX entries are added to a bunch of files that we missed a year
ago that do not have any license information at all.
These were either missed because the tool saw the MODULE_LICENSE()
tag, or some EXPORT_SYMBOL tags, and got confused and thought the
file had a real license, or the files have been added since the
last big sweep, or they were Makefile/Kconfig files, which we
didn't touch last time.
- Add GPL-2.0-only or GPL-2.0-or-later tags to files where our scan
tools can determine the license text in the file itself. Where this
happens, the license text is removed, in order to cut down on the
700+ different ways we have in the kernel today, in a quest to get
rid of all of these.
These patches have been out for review on the linux-spdx@vger mailing
list, and while they were created by automatic tools, they were
hand-verified by a bunch of different people, all whom names are on
the patches are reviewers.
The reason for these "large" patches is if we were to continue to
progress at the current rate of change in the kernel, adding license
tags to individual files in different subsystems, we would be finished
in about 10 years at the earliest.
There will be more series of these types of patches coming over the
next few weeks as the tools and reviewers crunch through the more
"odd" variants of how to say "GPLv2" that developers have come up with
over the years, combined with other fun oddities (GPL + a BSD
disclaimer?) that are being unearthed, with the goal for the whole
kernel to be cleaned up.
These diffstats are not small, 3840 files are touched, over 10k lines
removed in just 24 patches"
* tag 'spdx-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (24 commits)
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 25
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 24
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 23
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 22
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 21
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 20
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 19
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 17
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 15
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 14
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 12
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 11
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 10
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 9
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 5
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 3
...
Pull crypto fixes from Herbert Xu:
- Two long-standing bugs in the powerpc assembly of vmx
- Stack overrun caused by HASH_MAX_DESCSIZE being too small
- Regression in caam
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: vmx - ghash: do nosimd fallback manually
crypto: vmx - CTR: always increment IV as quadword
crypto: hash - fix incorrect HASH_MAX_DESCSIZE
crypto: caam - fix typo in i.MX6 devices list for errata
The licenses from the other directory were partially moved to the dual
directory in commit 8ea8814fcdcb ("LICENSES: Clearly mark dual license only
licenses"). checkpatch therefore rejected files like
drivers/staging/android/ashmem.h with
WARNING: 'SPDX-License-Identifier: GPL-2.0 OR Apache-2.0 */' is not supported in LICENSES/...
#1: FILE: drivers/staging/android/ashmem.h:1:
+/* SPDX-License-Identifier: GPL-2.0 OR Apache-2.0 */
Fixes: 8ea8814fcdcb ("LICENSES: Clearly mark dual license only licenses")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it would be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 6 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154043.007767574@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or any
later version this program is distributed in the hope that it will
be useful but without any warranty without even the implied warranty
of merchantability or fitness for a particular purpose see the gnu
general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 50 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154042.917228456@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this software may be redistributed and or modified under the terms
of the gnu general public license as published by the free software
foundation either version 2 of the license or any later version this
program is distributed in the hope that it will be useful but
without any warranty without even the implied warranty of
merchantability or fitness for a particular purpose see the gnu
general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 2 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154042.800979546@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
the code contained herein is licensed under the gnu general public
license you may obtain a copy of the gnu general public license
version 2 or later at the following locations
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 4 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154042.707528683@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
