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1,105,074 commits

Author SHA1 Message Date
Christophe Leroy
27e21e8f12 powerpc/32: Remove _ENTRY() macro
_ENTRY() is now redundant with _GLOBAL(). Remove it.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/62a35f8dde2bb74c8d0d7a5430cce07a5a3a6fb6.1638273868.git.christophe.leroy@csgroup.eu
2022-02-07 21:03:10 +11:00
Christophe Leroy
1231816373 powerpc/32: Remove remaining .stabs annotations
STABS debug format has been superseded long time ago by DWARF.

Remove the few remaining .stabs annotations from old 32 bits code.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/68932ec2ba6b868d35006b96e90f0890f3da3c05.1638273868.git.christophe.leroy@csgroup.eu
2022-02-07 21:03:10 +11:00
Christophe Leroy
66ada29078 powerpc/corenet: Change criteria to set MPIC_ENABLE_COREINT
Don't use ppc_md function comparison.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c8ef82ee5f2713f4c36eb5d2d49b0905c7472801.1630667612.git.christophe.leroy@csgroup.eu
2022-02-07 21:03:10 +11:00
Christophe Leroy
fae65a9ac8 powerpc/mpc86xx_hpcn: Remove obsolete statement
Comment says "Delete this in 2.6.27".

Do so now.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a47bb6a69c68156bc2d555152dab5a23733856b7.1630667612.git.christophe.leroy@csgroup.eu
2022-02-07 21:03:09 +11:00
Christophe Leroy
e6d03ac156 powerpc/machdep: Move sys_ctrler_t definition into pmac_feature.h
sys_ctrler_t definitions are tied to pmac. Move it into pmac_feature.h

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[mpe: Move to pmac_feature.h to fix some build errors]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/7dd5ead4bbca749e2da089ff6fe2b1878d6bf40e.1630667612.git.christophe.leroy@csgroup.eu
2022-02-07 21:02:20 +11:00
Krzysztof Kozlowski
3037b174b1 ARM: socfpga: fix missing RESET_CONTROLLER
The SocFPGA machine since commit b3ca9888f3 ("reset: socfpga: add an
early reset driver for SoCFPGA") uses reset controller, so it should
select RESET_CONTROLLER explicitly.  Selecting ARCH_HAS_RESET_CONTROLLER
is not enough because it affects only default choice still allowing a
non-buildable configuration:

  /usr/bin/arm-linux-gnueabi-ld: arch/arm/mach-socfpga/socfpga.o: in function `socfpga_init_irq':
  arch/arm/mach-socfpga/socfpga.c:56: undefined reference to `socfpga_reset_init'

Reported-by: kernel test robot <lkp@intel.com>
Cc: <stable@vger.kernel.org>
Fixes: b3ca9888f3 ("reset: socfpga: add an early reset driver for SoCFPGA")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2022-02-07 03:54:42 -06:00
Marek Vasut
2a8e68ad06 ARM: dts: stm32: Drop duplicate status okay from DHCOM gpioc node
The stm32mp15xxaa-pinctrl.dtsi included in stm32mp15xx-dhcom-som.dtsi
already sets status = "okay" in gpioc: gpio@50004000 node, drop the
duplicate from stm32mp15xx-dhcom-som.dtsi . No functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: kernel@dh-electronics.com
Cc: linux-stm32@st-md-mailman.stormreply.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2022-02-07 10:48:44 +01:00
Reinhold Mueller
16e3e44c5b ARM: dts: stm32: Add support for the emtrion emSBC-Argon
This patch presents the DT patches for the emtrion GmbH
Argon board series. They are available with STM32MP157
from STMicroelectronics with 512 MByte Memory.

The devicetree stm32mp157c-emstamp-argon.dtsi is the common part
providing the module components and the basic support for the SoC.
The support for the emSBC-Argon baseboard in the developer-kit
configuration is provided by the stm32mp157c-emsbc-argon.dts file.

Signed-off-by: Reinhold Mueller <reinhold.mueller@emtrion.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2022-02-07 10:31:19 +01:00
Reinhold Mueller
7f25465e77 dt-binding: arm/stm32: Add emtrion hardware emSBC-Argon
This patch presents the yaml patch for the emtrion GmbH
Argon board series.

Signed-off-by: Reinhold Mueller <reinhold.mueller@emtrion.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2022-02-07 10:31:04 +01:00
Rob Herring
d65e4afcc8
ARM: dts: sun8i-h3: Drop args in 'thermal-sensors'
The "allwinner,sun8i-h3-ths" thermal sensor has 0 argument cells, but
the consumer has an argument cell. It is ignored by the code, but the
error was found with some upcoming schema validation changes. The schema
and code both agree that 0 cells is correct.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20220204002802.1214602-1-robh@kernel.org
2022-02-07 10:16:10 +01:00
Ville Syrjälä
15512021eb drm/i915: Workaround broken BIOS DBUF configuration on TGL/RKL
On TGL/RKL the BIOS likes to use some kind of bogus DBUF layout
that doesn't match what the spec recommends. With a single active
pipe that is not going to be a problem, but with multiple pipes
active skl_commit_modeset_enables() goes into an infinite loop
since it can't figure out any order in which it can commit the
pipes without causing DBUF overlaps between the planes.

We'd need some kind of extra DBUF defrag stage in between to
make the transition possible. But that is clearly way too complex
a solution, so in the name of simplicity let's just sanitize the
DBUF state by simply turning off all planes when we detect a
pipe encroaching on its neighbours' DBUF slices. We only have
to disable the primary planes as all other planes should have
already been disabled (if they somehow were enabled) by
earlier sanitization steps.

And for good measure let's also sanitize in case the DBUF
allocations of the pipes already seem to overlap each other.

Cc: <stable@vger.kernel.org> # v5.14+
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/4762
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220204141818.1900-3-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2022-02-07 11:10:32 +02:00
Ville Syrjälä
b3dcc6dc0f drm/i915: Populate pipe dbuf slices more accurately during readout
During readout we cannot assume the planes are actually using the
slices they are supposed to use. The BIOS may have misprogrammed
things and put the planes onto the wrong dbuf slices. So let's
do the readout more carefully to make sure we really know which
dbuf slices are actually in use by the pipe at the time.

Cc: <stable@vger.kernel.org> # v5.14+
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220204141818.1900-2-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2022-02-07 11:09:23 +02:00
Ville Syrjälä
eef1739544 drm/i915: Allow !join_mbus cases for adlp+ dbuf configuration
Reintroduce the !join_mbus single pipe cases for adlp+.

Due to the mbus relative dbuf offsets in PLANE_BUF_CFG we
need to know the actual slices used by the pipe when doing
readout, even when mbus joining isn't enabled. Accurate
readout will be needed to properly sanitize invalid BIOS
dbuf configurations.

This will also make it much easier to play around with the
!join_mbus configs for testin/workaround purposes.

Cc: <stable@vger.kernel.org> # v5.14+
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220204141818.1900-1-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2022-02-07 11:06:29 +02:00
Paul Kocialkowski
c4af51698c
ARM: dts: sun8i: v3s: Move the csi1 block to follow address order
The csi1 block node was mistakenly added before the gic node, although
its address comes after the gic's. Move the node to its correct
position.

Fixes: 90e048101f ("ARM: dts: sun8i: V3/V3s/S3/S3L: add CSI1 device node")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20220205185429.2278860-2-paul.kocialkowski@bootlin.com
2022-02-07 10:02:26 +01:00
Fabrice Gasnier
b380a2d189 ARM: dts: stm32: remove timer5 duplicate unit-address on stm32f4 series
Remove the following warnings seen when building with W=1.
Warning (unique_unit_address): /soc/timer@40000c00: duplicate unit-address
(also used in node /soc/timers@40000c00)
This approach is based on some discussions[1], to restructure the dtsi
and dts files.

Timer5 is enabled by default on stm32f4 series, to act as clockevent. In
order to get rid of the W=1 warning, and be compliant with dt-schemas
(e.g. dtbs_check):
- In stm32f429.dtsi:
  . Keep the more complete timers5 description
  . Remove the most simple timer5 node that is duplicate
- In each board:
  . adopt "st,stm32-timer" compatible for timers5, also add the interrupt
  . use /delete-property/ and /delete-node/ so the it matches the
    clockevent bindings

Note: all this is done in one shot (e.g. not split) to keep clockevent
functionality.

[1] https://lore.kernel.org/linux-arm-kernel/Yaf4jiZIp8+ndaXs@robh.at.kernel.org/

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2022-02-07 09:52:57 +01:00
Fabrice Gasnier
85045dd453 ARM: dts: stm32: remove some timer duplicate unit-address on stm32f4 series
Several unused "timer" are duplicate nodes of "timers" nodes.
There are two dt-schemas:
- timer/st,stm32-timer.yaml: A timer is needed on STM32F4 series, on all
  boards, to act as clockevent.
- mfd/st,stm32-timers.yaml: Timers can be used for other purpose.

By default, timer5 is left enabled to be used as clockevent. Remove all
other timer clockevent nodes that are currently unused and duplicated.

This removes several messages: Warning (unique_unit_address): /soc/timer@..
duplicate unit-address (also used in node /soc/timers@...)

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2022-02-07 09:52:57 +01:00
Christophe Leroy
9bb162fa26 powerpc/603: Fix boot failure with DEBUG_PAGEALLOC and KFENCE
Allthough kernel text is always mapped with BATs, we still have
inittext mapped with pages, so TLB miss handling is required
when CONFIG_DEBUG_PAGEALLOC or CONFIG_KFENCE is set.

The final solution should be to set a BAT that also maps inittext
but that BAT then needs to be cleared at end of init, and it will
require more changes to be able to do it properly.

As DEBUG_PAGEALLOC or KFENCE are debugging, performance is not a big
deal so let's fix it simply for now to enable easy stable application.

Fixes: 035b19a15a ("powerpc/32s: Always map kernel text and rodata with BATs")
Cc: stable@vger.kernel.org # v5.11+
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/aea33b4813a26bdb9378b5f273f00bd5d4abe240.1638857364.git.christophe.leroy@csgroup.eu
2022-02-07 17:18:47 +11:00
Christophe Leroy
d6a6c725a2 powerpc/machdep: Remove CONFIG_PPC_HAS_FEATURE_CALLS
Last user was removed by commit 7bbd827750 ("[PATCH] ppc64: very
basic desktop g5 sound support").

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/803779fffb4ee0801746b2173d37cea3b273f821.1630667612.git.christophe.leroy@csgroup.eu
2022-02-07 16:43:35 +11:00
Aswath Govindraju
d88ca22d6f phy: cadence: Sierra: Add support for skipping configuration
In some cases, a single SerDes instance can be shared between two different
processors, each using a separate link. In these cases, the SerDes
configuration is done in an earlier boot stage. Therefore, add support to
skip reconfiguring, if it is was already configured beforehand.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20220128072642.29188-1-a-govindraju@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-07 10:27:43 +05:30
Vinod Koul
1e805d190b phy: fixes for 5.17
Fixes for bunch of drivers:
  - clk params for dphy
  - arg fix for mtk-tphy
  - refcount leak fix for stm32
  - bus width fix for zynqmp
  - sentinel fix ti
  - PHY_BRCM_USB Kconfig fix
  - clk fix for usb phy
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Merge tag 'phy-fixes-5.17' into next

Merge phy fixes for 5.17 into next branch to resolve the conflict
between fixes and next for upcoming patches
2022-02-07 10:24:00 +05:30
Sourabh Jain
7c5ed82b80 powerpc: Set crashkernel offset to mid of RMA region
On large config LPARs (having 192 and more cores), Linux fails to boot
due to insufficient memory in the first memblock. It is due to the
memory reservation for the crash kernel which starts at 128MB offset of
the first memblock. This memory reservation for the crash kernel doesn't
leave enough space in the first memblock to accommodate other essential
system resources.

The crash kernel start address was set to 128MB offset by default to
ensure that the crash kernel get some memory below the RMA region which
is used to be of size 256MB. But given that the RMA region size can be
512MB or more, setting the crash kernel offset to mid of RMA size will
leave enough space for the kernel to allocate memory for other system
resources.

Since the above crash kernel offset change is only applicable to the LPAR
platform, the LPAR feature detection is pushed before the crash kernel
reservation. The rest of LPAR specific initialization will still
be done during pseries_probe_fw_features as usual.

This patch is dependent on changes to paca allocation for boot CPU. It
expect boot CPU to discover 1T segment support which is introduced by
the patch posted here:
https://lists.ozlabs.org/pipermail/linuxppc-dev/2022-January/239175.html

Reported-by: Abdul haleem <abdhalee@linux.vnet.ibm.com>
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220204085601.107257-1-sourabhjain@linux.ibm.com
2022-02-07 15:26:12 +11:00
Steve French
d0cbe56a7d [smb3] improve error message when mount options conflict with posix
POSIX extensions require SMB3.1.1 (so improve the error
message when vers=3.0, 2.1 or 2.0 is specified on mount)

Signed-off-by: Steve French <stfrench@microsoft.com>
2022-02-06 18:59:57 -06:00
Heiko Carstens
ba2d394c60 s390/lgr: use simple assignment instead of memcpy
It is quite pointless to use memcpy to copy two bytes, besides that
this construct will also partially remove type and size sanity checks.

Therefore simply use an assignment.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:31:29 +01:00
Alexander Gordeev
9de209c7d5 s390/dump: fix os_info virtual vs physical address confusion
Due to historical reasons os_info handling functions misuse
the notion of physical vs virtual addresses difference.

Note: this does not fix a bug currently, since virtual
and physical addresses are identical.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:31:29 +01:00
Alexander Gordeev
628c66942e s390/sclp_sdias: fix sclp_sdias_copy() virtual vs physical address confusion
Due to historical reasons sclp_sdias_copy() misuses
the notion of physical vs virtual addresses difference.

Note: this does not fix a bug currently, since virtual
and physical addresses are identical.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:31:29 +01:00
Alexander Gordeev
1f231e2950 s390/maccess: fix absolute lowcore virtual vs physical address confusion
Due to historical reasons memcpy_absolute() and friend functions
misuse the notion of physical vs virtual addresses difference.

Note: this does not fix a bug currently, since virtual and physical
addresses are identical.

Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:31:29 +01:00
Sven Schnelle
98c0d24d1e s390/ftrace: verify opcode before applying patch
commit 72b3942a17 ("scripts: ftrace - move the
sort-processing in ftrace_init") had the unexpected
side effect that wrong code locations were patched.
To prevent this from happening again, verify the
opcode before patching it.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:31:29 +01:00
Heiko Carstens
f36e7c9845 s390: remove invalid email address of Heiko Carstens
Remove my old invalid email address which can be found in a couple of
files. Instead of updating it, just remove my contact data completely
from source files.
We have git and other tools which allow to figure out who is responsible
for what with recent contact data.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:31:29 +01:00
Tony Krowiak
783f0a3ccd s390/vfio-ap: add s390dbf logging to the vfio_ap_irq_enable function
This patch adds s390dbf logging to the function that executes the
PQAP(AQIC) instruction on behalf of the guest to which the queue for which
interrupts are being enabled or disabled is attached.

Currently, the vfio_ap_irq_enable function sets status response code 06
(notification indicator byte address (nib) invalid) in the status word
when the vfio_pin_pages function - called to pin the page containing the
nib - returns an error or a different number of pages pinned than
requested.

Setting the response code returned to userspace without also logging a
message in the kernel makes it impossible to determine whether the response
was due to an error detected by the vfio_ap device driver or because the
response code was returned by the firmware in response to the PQAP(AQIC)
instruction.

In addition to logging a warning for the situation above, this patch adds
the following:

* A function to validate the nib address invoked prior to calling the
  vfio_pin_pages function. This allows for logging a message informing
  the reader of the reason the page containing the nib can not be pinned
  if the nib address is not valid. Response code 06 (invalid nib address)
  will be set in the status word returned to the guest from the
  instruction.

* Checks the return value from the kvm_s390_gisc_register and logs a
  message informing the reader of the failure. Status response code 08
  (invalid gisa) will be set in the status word returned to the guest from
  the PQAP(AQIC) instruction.

* Checks the status response code returned from execution of the PQAP(AQIC)
  instruction and if it indicates an error, logs a message informing the
  reader.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:31:29 +01:00
Tony Krowiak
68f554b7d2 s390/vfio-ap: add s390dbf logging to the handle_pqap function
This patch adds s390dbf logging to the function that handles interception
of the PQAP(AQIC) instruction. Several items of data are validated before
ultimately calling the functions that execute the PQAP(AQIC) instruction on
behalf of the guest to which the queue for which interrupts are being
enabled or disabled is attached.

Currently, the handle_pqap function sets status response code 01 (queue not
available) in the status word that is normally returned from the
PQAP(AQIC) instruction under the following conditions:

* Set when the function pointer to the handler is not set in the
  kvm_s390_crypto object (i.e., the PQAP hook is not registered).

* Set when the KVM pointer is not set in the ap_matrix_mdev object
  (i.e., the matrix mdev is not passed through to a guest).

* Set when the queue for which interrupts are being enabled or
  disabled is either not bound to the vfio_ap device driver or not assigned
  to the matrix mdev.

Setting the response code returned to userspace without also logging a
message in the kernel makes it impossible to determine whether the response
was due to an error detected by the vfio_ap device driver or because the
response code was returned by the firmware in response to the PQAP(AQIC)
instruction, so this patch logs a message to the s390dbf log for the
vfio_ap device driver for each of the situations described above.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:31:29 +01:00
Tony Krowiak
d5c49db21b MAINTAINERS: update file path for S390 VFIO AP DRIVER
Changed the MAINTAINERS file to include the new
drivers/s390/crypto/vfio_ap_debug.h file path.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Acked-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:31:29 +01:00
Tony Krowiak
a084c44eaa s390-vfio-ap: introduces s390 kernel debug feature for vfio_ap device driver
Sets up an s390dbf debug log for the vfio_ap device driver for logging
events occurring during the lifetime of the driver.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:31:29 +01:00
Ilya Leoshkevich
e286f231ea s390/module: fix building test_modules_helpers.o with clang
Move test_modules_return_* prototypes into a header file in order to
placate -Wmissing-prototypes.

Fixes: 90c5318795 ("s390/module: test loading modules with a lot of relocations")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:30:37 +01:00
Christian Borntraeger
72fc40931d MAINTAINERS: downgrade myself to Reviewer for s390
Now that Alexander Gordeev has volunteered to be a co-maintainer for
s390, I can act as a reviewer instead of being a maintainer for s390.
With Alexander, Heiko, and Vasily we are in really good shape.
I will continue to act as the maintainer for KVM on s390 together with
Janosch.

Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:30:37 +01:00
Heiko Carstens
4f9e67f5e0 MAINTAINERS: add Alexander Gordeev as maintainer for s390
Change Alexander Gordeev's status so he is maintainer
instead of reviewer for s390.

Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Sven Schnelle <svens@linux.ibm.com>
Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-06 23:30:37 +01:00
Song Liu
5f4e5ce638 perf: Fix list corruption in perf_cgroup_switch()
There's list corruption on cgrp_cpuctx_list. This happens on the
following path:

  perf_cgroup_switch: list_for_each_entry(cgrp_cpuctx_list)
      cpu_ctx_sched_in
         ctx_sched_in
            ctx_pinned_sched_in
              merge_sched_in
                  perf_cgroup_event_disable: remove the event from the list

Use list_for_each_entry_safe() to allow removing an entry during
iteration.

Fixes: 058fe1c044 ("perf/core: Make cgroup switch visit only cpuctxs with cgroup events")
Signed-off-by: Song Liu <song@kernel.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220204004057.2961252-1-song@kernel.org
2022-02-06 22:37:27 +01:00
Tadeusz Struk
13765de814 sched/fair: Fix fault in reweight_entity
Syzbot found a GPF in reweight_entity. This has been bisected to
commit 4ef0c5c6b5 ("kernel/sched: Fix sched_fork() access an invalid
sched_task_group")

There is a race between sched_post_fork() and setpriority(PRIO_PGRP)
within a thread group that causes a null-ptr-deref in
reweight_entity() in CFS. The scenario is that the main process spawns
number of new threads, which then call setpriority(PRIO_PGRP, 0, -20),
wait, and exit.  For each of the new threads the copy_process() gets
invoked, which adds the new task_struct and calls sched_post_fork()
for it.

In the above scenario there is a possibility that
setpriority(PRIO_PGRP) and set_one_prio() will be called for a thread
in the group that is just being created by copy_process(), and for
which the sched_post_fork() has not been executed yet. This will
trigger a null pointer dereference in reweight_entity(), as it will
try to access the run queue pointer, which hasn't been set.

Before the mentioned change the cfs_rq pointer for the task  has been
set in sched_fork(), which is called much earlier in copy_process(),
before the new task is added to the thread_group.  Now it is done in
the sched_post_fork(), which is called after that.  To fix the issue
the remove the update_load param from the update_load param() function
and call reweight_task() only if the task flag doesn't have the
TASK_NEW flag set.

Fixes: 4ef0c5c6b5 ("kernel/sched: Fix sched_fork() access an invalid sched_task_group")
Reported-by: syzbot+af7a719bc92395ee41b3@syzkaller.appspotmail.com
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20220203161846.1160750-1-tadeusz.struk@linaro.org
2022-02-06 22:37:26 +01:00
Tomohito Esaki
cf1c7fee7e drm/sprd: remove allow_fb_modifiers setting
Remove allow_fb_modifiers setting in this driver. The allow_fb_modifiers
flag was removed.

Signed-off-by: Tomohito Esaki <etom@igel.co.jp>
Fixes: 3d082157a2 ("drm: remove allow_fb_modifiers")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220204023635.15496-1-etom@igel.co.jp
2022-02-06 22:21:33 +01:00
Simon Ser
a357411982 drm: document struct drm_mode_fb_cmd2
Follow-up for the DRM_IOCTL_MODE_GETFB2 docs.

v2: (Daniel Stone)
- Replace fourcc.org with drm_fourcc.h because this is the
  authoritative source and the website may have mismatches.
- Drop assumption that offsets will generally be 0.
- Mention that unused entries must be zero'ed out.

v3: (Pekka)
- Mention that a handle can be re-used
- Add unit for pitches/offsets

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Cc: Daniel Stone <daniels@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220203133753.261507-1-contact@emersion.fr
2022-02-06 21:38:46 +01:00
Linus Torvalds
dfd42facf1 Linux 5.17-rc3 v5.17-rc3 2022-02-06 12:20:50 -08:00
Kees Cook
ae978009fc gcc-plugins/stackleak: Ignore .noinstr.text and .entry.text
The .noinstr.text section functions may not have "current()" sanely
available. Similarly true for .entry.text, though such a check is
currently redundant. Add a check for both. In an x86_64 defconfig build,
the following functions no longer receive stackleak instrumentation:

	__do_fast_syscall_32()
	do_int80_syscall_32()
	do_machine_check()
	do_syscall_64()
	exc_general_protection()
	fixup_bad_iret()

Suggested-by: Peter Zijlstra <peterz@infradead.org>
Cc: Alexander Popov <alex.popov@linux.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2022-02-06 10:55:03 -08:00
Kees Cook
27e9faf415 gcc-plugins/stackleak: Exactly match strings instead of prefixes
Since STRING_CST may not be NUL terminated, strncmp() was used for check
for equality. However, this may lead to mismatches for longer section
names where the start matches the tested-for string. Test for exact
equality by checking for the presences of NUL termination.

Cc: Alexander Popov <alex.popov@linux.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2022-02-06 10:55:03 -08:00
Kees Cook
f154066b61 gcc-plugins/stackleak: Provide verbose mode
In order to compare instrumentation between builds, make the verbose
mode of the plugin available during the build. This is rarely needed
(behind EXPERT) and very noisy (disabled for COMPILE_TEST).

Cc: Alexander Popov <alex.popov@linux.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2022-02-06 10:49:57 -08:00
Linus Torvalds
d8ad2ce873 Various bug fixes for ext4 fast commit and inline data handling. Also
fix regression introduced as part of moving to the new mount API.
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Various bug fixes for ext4 fast commit and inline data handling.

  Also fix regression introduced as part of moving to the new mount API"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  fs/ext4: fix comments mentioning i_mutex
  ext4: fix incorrect type issue during replay_del_range
  jbd2: fix kernel-doc descriptions for jbd2_journal_shrink_{scan,count}()
  ext4: fix potential NULL pointer dereference in ext4_fill_super()
  jbd2: refactor wait logic for transaction updates into a common function
  jbd2: cleanup unused functions declarations from jbd2.h
  ext4: fix error handling in ext4_fc_record_modified_inode()
  ext4: remove redundant max inline_size check in ext4_da_write_inline_data_begin()
  ext4: fix error handling in ext4_restore_inline_data()
  ext4: fast commit may miss file actions
  ext4: fast commit may not fallback for ineligible commit
  ext4: modify the logic of ext4_mb_new_blocks_simple
  ext4: prevent used blocks from being allocated during fast commit replay
2022-02-06 10:34:45 -08:00
Linus Torvalds
18118a4298 perf tools fixes for v5.17: 1st batch
- Fix display of grouped aliased events in 'perf stat'.
 
 - Add missing branch_sample_type to perf_event_attr__fprintf().
 
 - Apply correct label to user/kernel symbols in branch mode.
 
 - Fix 'perf ftrace' system_wide tracing, it has to be set before creating the maps.
 
 - Return error if procfs isn't mounted for PID namespaces when synthesizing records
   for pre-existing processes.
 
 - Set error stream of objdump process for 'perf annotate' TUI, to avoid garbling the
   screen.
 
 - Add missing arm64 support to perf_mmap__read_self(), the kernel part got into 5.17.
 
 - Check for NULL pointer before dereference writing debug info about a sample.
 
 - Update UAPI copies for asound, perf_event, prctl and kvm headers.
 
 - Fix a typo in bpf_counter_cgroup.c.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.17-2022-02-06' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix display of grouped aliased events in 'perf stat'.

 - Add missing branch_sample_type to perf_event_attr__fprintf().

 - Apply correct label to user/kernel symbols in branch mode.

 - Fix 'perf ftrace' system_wide tracing, it has to be set before
   creating the maps.

 - Return error if procfs isn't mounted for PID namespaces when
   synthesizing records for pre-existing processes.

 - Set error stream of objdump process for 'perf annotate' TUI, to avoid
   garbling the screen.

 - Add missing arm64 support to perf_mmap__read_self(), the kernel part
   got into 5.17.

 - Check for NULL pointer before dereference writing debug info about a
   sample.

 - Update UAPI copies for asound, perf_event, prctl and kvm headers.

 - Fix a typo in bpf_counter_cgroup.c.

* tag 'perf-tools-fixes-for-v5.17-2022-02-06' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf ftrace: system_wide collection is not effective by default
  libperf: Add arm64 support to perf_mmap__read_self()
  tools include UAPI: Sync sound/asound.h copy with the kernel sources
  perf stat: Fix display of grouped aliased events
  perf tools: Apply correct label to user/kernel symbols in branch mode
  perf bpf: Fix a typo in bpf_counter_cgroup.c
  perf synthetic-events: Return error if procfs isn't mounted for PID namespaces
  perf session: Check for NULL pointer before dereference
  perf annotate: Set error stream of objdump process for TUI
  perf tools: Add missing branch_sample_type to perf_event_attr__fprintf()
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  tools headers UAPI: Sync linux/prctl.h with the kernel sources
  perf beauty: Make the prctl arg regexp more strict to cope with PR_SET_VMA
  tools headers cpufeatures: Sync with the kernel sources
  tools headers UAPI: Sync linux/perf_event.h with the kernel sources
  tools include UAPI: Sync sound/asound.h copy with the kernel sources
2022-02-06 10:18:23 -08:00
Linus Torvalds
c3bf8a1440 perf/urgent contains 3 fixups:
- Intel/PT: filters could crash the kernel
 
  - Intel: default disable the PMU for SMM, some new-ish EFI firmware has
    started using CPL3 and the PMU CPL filters don't discriminate against
    SMM, meaning that CPL3 (userspace only) events now also count EFI/SMM
    cycles.
 
  - Fixup for perf_event_attr::sig_data
 
 (Peter Zijlstra)
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Merge tag 'perf_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Borislav Petkov:

 - Intel/PT: filters could crash the kernel

 - Intel: default disable the PMU for SMM, some new-ish EFI firmware has
   started using CPL3 and the PMU CPL filters don't discriminate against
   SMM, meaning that CPL3 (userspace only) events now also count EFI/SMM
   cycles.

 - Fixup for perf_event_attr::sig_data

* tag 'perf_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/pt: Fix crash with stop filters in single-range mode
  perf: uapi: Document perf_event_attr::sig_data truncation on 32 bit architectures
  selftests/perf_events: Test modification of perf_event_attr::sig_data
  perf: Copy perf_event_attr::sig_data on modification
  x86/perf: Default set FREEZE_ON_SMI for all
2022-02-06 10:11:14 -08:00
Linus Torvalds
aeabe1e074 - Fix a potential truncated string warning triggered by gcc12
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Merge tag 'objtool_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fix from Borislav Petkov:
 "Fix a potential truncated string warning triggered by gcc12"

* tag 'objtool_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix truncated string warning
2022-02-06 10:04:43 -08:00
Linus Torvalds
b72e40b192 - Remove a bogus warning introduced by the recent PCI MSI irq affinity
overhaul
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Merge tag 'irq_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fix from Borislav Petkov:
 "Remove a bogus warning introduced by the recent PCI MSI irq affinity
  overhaul"

* tag 'irq_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  PCI/MSI: Remove bogus warning in pci_irq_get_affinity()
2022-02-06 10:00:40 -08:00
Linus Torvalds
898b5841ae - Fix altera and xgene EDAC drivers to propagate the correct error code
from platform_get_irq() so that deferred probing still works
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Merge tag 'edac_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC fixes from Borislav Petkov:
 "Fix altera and xgene EDAC drivers to propagate the correct error code
  from platform_get_irq() so that deferred probing still works"

* tag 'edac_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/xgene: Fix deferred probing
  EDAC/altera: Fix deferred probing
2022-02-06 09:57:39 -08:00
Andy Shevchenko
889bdfc336 iio: imu: inv_mpu6050: Make use of device properties
Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220203155920.18586-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-02-06 15:28:02 +00:00