[ Upstream commit 7b6dfa1bbe ]
Amit Pundir reports that audio and USB-C host mode stops working if the
gcc_usb30_prim_master_clk_src clk is registered and
clk_rcg2_shared_init() parks it on XO. Skip parking this clk at
registration time to fix those issues.
Partially revert commit 01a0a6cc8c ("clk: qcom: Park shared RCGs upon
registration") by skipping the parking bit for this clk, but keep the
part where we cache the config register. That's still necessary to
figure out the true parent of the clk at registration time.
Fixes: 01a0a6cc8c ("clk: qcom: Park shared RCGs upon registration")
Fixes: 929c75d575 ("clk: qcom: gcc-sm8550: Mark RCGs shared where applicable")
Cc: Konrad Dybcio <konradybcio@kernel.org>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Taniya Das <quic_tdas@quicinc.com>
Reported-by: Amit Pundir <amit.pundir@linaro.org>
Closes: https://lore.kernel.org/CAMi1Hd1KQBE4kKUdAn8E5FV+BiKzuv+8FoyWQrrTHPDoYTuhgA@mail.gmail.com
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20240819233628.2074654-3-swboyd@chromium.org
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit d10eeb7516 ]
The QUPs aren't shared in a way that requires parking the RCG at an
always on parent in case some other entity turns on the clk. The
hardware is capable of setting a new frequency itself with the DFS mode,
so parking is unnecessary. Furthermore, there aren't any GDSCs for these
devices, so there isn't a possibility of the GDSC turning on the clks
for housekeeping purposes.
This wasn't a problem to mark these clks shared until we started parking
shared RCGs at clk registration time in commit 01a0a6cc8c ("clk: qcom:
Park shared RCGs upon registration"). Parking at init is actually
harmful to the UART when earlycon is used. If the device is pumping out
data while the frequency changes you'll see garbage on the serial
console until the driver can probe and actually set a proper frequency.
Revert the QUP part of commit 929c75d575 ("clk: qcom: gcc-sm8550: Mark
RCGs shared where applicable") so that the QUPs don't get parked during
clk registration and break UART operations.
Fixes: 01a0a6cc8c ("clk: qcom: Park shared RCGs upon registration")
Fixes: 929c75d575 ("clk: qcom: gcc-sm8550: Mark RCGs shared where applicable")
Cc: Konrad Dybcio <konradybcio@kernel.org>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Taniya Das <quic_tdas@quicinc.com>
Reported-by: Amit Pundir <amit.pundir@linaro.org>
Closes: https://lore.kernel.org/CAMi1Hd1KQBE4kKUdAn8E5FV+BiKzuv+8FoyWQrrTHPDoYTuhgA@mail.gmail.com
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20240819233628.2074654-2-swboyd@chromium.org
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 3e83957e8d ]
This fixes the LRCLK polarity for sun8i-h3 and sun50i-h6 in i2s mode
which was wrongly inverted.
The LRCLK was being set in reversed logic compared to the DAI format:
inverted LRCLK for SND_SOC_DAIFMT_IB_NF and SND_SOC_DAIFMT_NB_NF; normal
LRCLK for SND_SOC_DAIFMT_IB_IF and SND_SOC_DAIFMT_NB_IF. Such reversed
logic applies properly for DSP_A, DSP_B, LEFT_J and RIGHT_J modes but
not for I2S mode, for which the LRCLK signal results reversed to what
expected on the bus. The issue is due to a misinterpretation of the
LRCLK polarity bit of the H3 and H6 i2s controllers. Such bit in this
case does not mean "0 => normal" or "1 => inverted" according to the
expected bus operation, but it means "0 => frame starts on low edge" and
"1 => frame starts on high edge" (from the User Manuals).
This commit fixes the LRCLK polarity by setting the LRCLK polarity bit
according to the selected bus mode and renames the LRCLK polarity bit
definition to avoid further confusion.
Fixes: dd657eae81 ("ASoC: sun4i-i2s: Fix the LRCK polarity")
Fixes: 73adf87b7a ("ASoC: sun4i-i2s: Add support for H6 I2S")
Signed-off-by: Matteo Martelli <matteomartelli3@gmail.com>
Link: https://patch.msgid.link/20240801-asoc-fix-sun4i-i2s-v2-1-a8e4e9daa363@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e0be875c5b ]
The SOF topology loading function sets the device name for the platform
component link. This should be unset when unloading the topology,
otherwise a machine driver unbind/bind or reprobe would complain about
an invalid component as having both its component name and of_node set:
mt8186_mt6366 sound: ASoC: Both Component name/of_node are set for AFE_SOF_DL1
mt8186_mt6366 sound: error -EINVAL: Cannot register card
mt8186_mt6366 sound: probe with driver mt8186_mt6366 failed with error -22
This happens with machine drivers that set the of_node separately.
Clear the SOF link platform name in the topology unload callback.
Fixes: 311ce4fe76 ("ASoC: SOF: Add support for loading topologies")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://patch.msgid.link/20240821041006.2618855-1-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6f01bdbfef ]
If a drive is unable to create IO queues on the initial probe, a
subsequent reset will need to allocate the tagset if IO queue creation
is successful. Without this, blk_mq_update_nr_hw_queues will crash on a
bad pointer due to the invalid tagset.
Fixes: eac3ef2629 ("nvme-pci: split the initial probe from the rest path")
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 5572a55a6f ]
If the commands allocation fails in nvmet_tcp_alloc_cmds()
the kernel crashes in nvmet_tcp_release_queue_work() because of
a NULL pointer dereference.
nvmet: failed to install queue 0 cntlid 1 ret 6
Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000008
Fix the bug by setting queue->nr_cmds to zero in case
nvmet_tcp_alloc_cmd() fails.
Fixes: 872d26a391 ("nvmet-tcp: add NVMe over TCP target driver")
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6781b962d9 ]
When Tegra audio drivers are built as part of the kernel image,
TIMEOUT_ERR is observed from cbb-fabric. Following is seen on
Jetson AGX Orin during boot:
[ 8.012482] **************************************
[ 8.017423] CPU:0, Error:cbb-fabric, Errmon:2
[ 8.021922] Error Code : TIMEOUT_ERR
[ 8.025966] Overflow : Multiple TIMEOUT_ERR
[ 8.030644]
[ 8.032175] Error Code : TIMEOUT_ERR
[ 8.036217] MASTER_ID : CCPLEX
[ 8.039722] Address : 0x290a0a8
[ 8.043318] Cache : 0x1 -- Bufferable
[ 8.047630] Protection : 0x2 -- Unprivileged, Non-Secure, Data Access
[ 8.054628] Access_Type : Write
[ 8.106130] WARNING: CPU: 0 PID: 124 at drivers/soc/tegra/cbb/tegra234-cbb.c:604 tegra234_cbb_isr+0x134/0x178
[ 8.240602] Call trace:
[ 8.243126] tegra234_cbb_isr+0x134/0x178
[ 8.247261] __handle_irq_event_percpu+0x60/0x238
[ 8.252132] handle_irq_event+0x54/0xb8
These errors happen when MVC device, which is a child of AHUB
device, tries to access its device registers. This happens as
part of call tegra210_mvc_reset_vol_settings() in MVC device
probe().
The root cause of this problem is, the child MVC device gets
probed before the AHUB clock gets enabled. The AHUB clock is
enabled in runtime PM resume of parent AHUB device and due to
the wrong sequence of pm_runtime_enable() in AHUB driver,
runtime PM resume doesn't happen for AHUB device when MVC makes
register access.
Fix this by calling pm_runtime_enable() for parent AHUB device
before of_platform_populate() in AHUB driver. This ensures that
clock becomes available when MVC makes register access.
Fixes: 16e1bcc2ca ("ASoC: tegra: Add Tegra210 based AHUB driver")
Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
Signed-off-by: Ritu Chaudhary <rituc@nvidia.com>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://patch.msgid.link/20240823144342.4123814-3-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6114139c3b ]
After building the VDSO, there is a verification that it contains
no dynamic relocation, see commit aff69273af ("vdso: Improve
cmd_vdso_check to check all dynamic relocations").
This verification uses readelf -r and doesn't work if rela sections
are discarded.
Fixes: 8ad57add77 ("powerpc/build: vdso linker warning for orphan sections")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/45c3e6fc76cad05ad2cac0f5b5dfb4fae86dc9d6.1724153239.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit a898530eea ]
A reasonable chunk of nohash/tlb.c is 64-bit only code, split it out into
a separate file.
Link: https://lkml.kernel.org/r/cb2b118f9d8a86f82d01bfb9ad309d1d304480a1.1719928057.git.christophe.leroy@csgroup.eu
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Stable-dep-of: d92b5cc29c ("powerpc/64e: Define mmu_pte_psize static")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 88715b6e5d ]
Patch series "Reimplement huge pages without hugepd on powerpc (8xx, e500,
book3s/64)", v7.
Unlike most architectures, powerpc 8xx HW requires a two-level pagetable
topology for all page sizes. So a leaf PMD-contig approach is not
feasible as such.
Possible sizes on 8xx are 4k, 16k, 512k and 8M.
First level (PGD/PMD) covers 4M per entry. For 8M pages, two PMD entries
must point to a single entry level-2 page table. Until now that was done
using hugepd. This series changes it to use standard page tables where
the entry is replicated 1024 times on each of the two pagetables refered
by the two associated PMD entries for that 8M page.
For e500 and book3s/64 there are less constraints because it is not tied
to the HW assisted tablewalk like on 8xx, so it is easier to use leaf PMDs
(and PUDs).
On e500 the supported page sizes are 4M, 16M, 64M, 256M and 1G. All at
PMD level on e500/32 (mpc85xx) and mix of PMD and PUD for e500/64. We
encode page size with 4 available bits in PTE entries. On e300/32 PGD
entries size is increases to 64 bits in order to allow leaf-PMD entries
because PTE are 64 bits on e500.
On book3s/64 only the hash-4k mode is concerned. It supports 16M pages as
cont-PMD and 16G pages as cont-PUD. In other modes (radix-4k, radix-6k
and hash-64k) the sizes match with PMD and PUD sizes so that's just leaf
entries. The hash processing make things a bit more complex. To ease
things, __hash_page_huge() is modified to bail out when DIRTY or ACCESSED
bits are missing, leaving it to mm core to fix it.
This patch (of 23):
The nohash HTW_IBM (Hardware Table Walk) code is unused since support for
A2 was removed in commit fb5a515704 ("powerpc: Remove platforms/ wsp and
associated pieces") (2014).
The remaining supported CPUs use either no HTW (data_tlb_miss_bolted), or
the e6500 HTW (data_tlb_miss_e6500).
Link: https://lkml.kernel.org/r/cover.1719928057.git.christophe.leroy@csgroup.eu
Link: https://lkml.kernel.org/r/820dd1385ecc931f07b0d7a0fa827b1613917ab6.1719928057.git.christophe.leroy@csgroup.eu
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Stable-dep-of: d92b5cc29c ("powerpc/64e: Define mmu_pte_psize static")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6357efe3ab ]
Update PLL offsets to DEFAULT_EVO to configure MDIO to 800MHz.
The incorrect clock frequency leads to an incorrect MDIO clock. This,
in turn, affects the MDIO hardware configurations as the divider is
calculated from the MDIO clock frequency. If the clock frequency is
not as expected, the MDIO register fails due to the generation of an
incorrect MDIO frequency.
This issue is critical as it results in incorrect MDIO configurations
and ultimately leads to the MDIO function not working. This results in
a complete feature failure affecting all Ethernet PHYs. Specifically,
Ethernet will not work on IPQ9574 due to this issue.
Currently, the clock frequency is set to CLK_ALPHA_PLL_TYPE_DEFAULT.
However, this setting does not yield the expected clock frequency.
To rectify this, we need to change this to CLK_ALPHA_PLL_TYPE_DEFAULT_EVO.
This modification ensures that the clock frequency aligns with our
expectations, thereby resolving the MDIO register failure and ensuring
the proper functioning of the Ethernet on IPQ9574.
Fixes: d75b82cff4 ("clk: qcom: Add Global Clock Controller driver for IPQ9574")
Signed-off-by: devi priya <quic_devipriy@quicinc.com>
Signed-off-by: Amandeep Singh <quic_amansing@quicinc.com>
Link: https://lore.kernel.org/r/20240806061105.2849944-1-quic_amansing@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 8323c03678 ]
Missing src scatterlist nent assignment in rsa decrypt function.
Removing all unneeded assignment and use nents value from req->src
instead.
Signed-off-by: Jia Jie Ho <jiajie.ho@starfivetech.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6aad7019f6 ]
Hardware expects RSA input plain/ciphertext to be 32-bit aligned.
Set fixed length for preallocated buffer to the maximum supported
keysize of the hardware and shift input text accordingly.
Signed-off-by: Jia Jie Ho <jiajie.ho@starfivetech.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 816be86c79 ]
qc->result_tf contents are only valid when the ATA_QCFLAG_RTF_FILLED flag
is set. The ATA_QCFLAG_RTF_FILLED flag should be always set for commands
that failed or for commands that have the ATA_QCFLAG_RESULT_TF flag set.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Link: https://lore.kernel.org/r/20240702024735.1152293-8-ipylypiv@google.com
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 3f6d903b54 ]
SCSI layer clears sense_buffer in scsi_queue_rq() so there is no need for
libata to clear it again.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Link: https://lore.kernel.org/r/20240702024735.1152293-5-ipylypiv@google.com
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 8dd1426e2c ]
It verified GFX9-11 swizzle modes on GFX12, which has undefined behavior.
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 24436be590 ]
This patch tries to works around erratum DS80000789E 6 of the
mcp2518fd, the other variants of the chip family (mcp2517fd and
mcp251863) are probably also affected.
In the bad case, the driver reads a too large head index. In the
original code, the driver always trusted the read value, which caused
old, already processed CAN frames or new, incompletely written CAN
frames to be (re-)processed.
To work around this issue, keep a per FIFO timestamp [1] of the last
valid received CAN frame and compare against the timestamp of every
received CAN frame. If an old CAN frame is detected, abort the
iteration and mark the number of valid CAN frames as processed in the
chip by incrementing the FIFO's tail index.
Further tests showed that this workaround can recognize old CAN
frames, but a small time window remains in which partially written CAN
frames [2] are not recognized but then processed. These CAN frames
have the correct data and time stamps, but the DLC has not yet been
updated.
[1] As the raw timestamp overflows every 107 seconds (at the usual
clock rate of 40 MHz) convert it to nanoseconds with the
timecounter framework and use this to detect stale CAN frames.
Link: https://lore.kernel.org/all/BL3PR11MB64844C1C95CA3BDADAE4D8CCFBC99@BL3PR11MB6484.namprd11.prod.outlook.com [2]
Reported-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Closes: https://lore.kernel.org/all/FR0P281MB1966273C216630B120ABB6E197E89@FR0P281MB1966.DEUP281.PROD.OUTLOOK.COM
Tested-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Tested-by: Thomas Kopp <thomas.kopp@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e793c724b4 ]
The mcp251xfd chip is configured to provide a timestamp with each
received and transmitted CAN frame. The timestamp is derived from the
internal free-running timer, which can also be read from the TBC
register via SPI. The timer is 32 bits wide and is clocked by the
external oscillator (typically 20 or 40 MHz).
To avoid confusion, we call this timestamp "timestamp_raw" or "ts_raw"
for short.
Using the timecounter framework, the "ts_raw" is converted to 64 bit
nanoseconds since the epoch. This is what we call "timestamp".
This is a preparation for the next patches which use the "timestamp"
to work around a bug where so far only the "ts_raw" is used.
Tested-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Tested-by: Thomas Kopp <thomas.kopp@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 85505e5856 ]
This is a preparatory patch to work around erratum DS80000789E 6 of
the mcp2518fd, the other variants of the chip family (mcp2517fd and
mcp251863) are probably also affected.
When handling the RX interrupt, the driver iterates over all pending
FIFOs (which are implemented as ring buffers in hardware) and reads
the FIFO header index from the RX FIFO STA register of the chip.
In the bad case, the driver reads a too large head index. In the
original code, the driver always trusted the read value, which caused
old CAN frames that were already processed, or new, incompletely
written CAN frames to be (re-)processed.
Instead of reading and trusting the head index, read the head index
and calculate the number of CAN frames that were supposedly received -
replace mcp251xfd_rx_ring_update() with mcp251xfd_get_rx_len().
The mcp251xfd_handle_rxif_ring() function reads the received CAN
frames from the chip, iterates over them and pushes them into the
network stack. Prepare that the iteration can be stopped if an old CAN
frame is detected. The actual code to detect old or incomplete frames
and abort will be added in the next patch.
Link: https://lore.kernel.org/all/BL3PR11MB64844C1C95CA3BDADAE4D8CCFBC99@BL3PR11MB6484.namprd11.prod.outlook.com
Reported-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Closes: https://lore.kernel.org/all/FR0P281MB1966273C216630B120ABB6E197E89@FR0P281MB1966.DEUP281.PROD.OUTLOOK.COM
Tested-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Tested-by: Thomas Kopp <thomas.kopp@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit d49184b7b5 ]
This is a preparation patch.
Sending the UINC messages followed by incrementing the tail pointer
will be called in more than one place in upcoming patches, so factor
this out into a separate function.
Also make mcp251xfd_handle_rxif_ring_uinc() safe to be called with a
"len" of 0.
Tested-by: Stefan Althöfer <Stefan.Althoefer@janztec.com>
Tested-by: Thomas Kopp <thomas.kopp@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 2488444274 ]
In a review discussion of the changes to support vCPU hotplug where
a check was added on the GICC being enabled if was online, it was
noted that there is need to map back to the cpu and use that to index
into a cpumask. As such, a valid ID is needed.
If an MPIDR check fails in acpi_map_gic_cpu_interface() it is possible
for the entry in cpu_madt_gicc[cpu] == NULL. This function would
then cause a NULL pointer dereference. Whilst a path to trigger
this has not been established, harden this caller against the
possibility.
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240529133446.28446-13-Jonathan.Cameron@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 8d34b6f17b ]
ACPI identifies CPUs by UID. get_cpu_for_acpi_id() maps the ACPI UID
to the Linux CPU number.
The helper to retrieve this mapping is only available in arm64's NUMA
code.
Move it to live next to get_acpi_id_for_cpu().
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Tested-by: Miguel Luis <miguel.luis@oracle.com>
Tested-by: Vishnu Pajjuri <vishnu@os.amperecomputing.com>
Tested-by: Jianyong Wu <jianyong.wu@arm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Link: https://lore.kernel.org/r/20240529133446.28446-12-Jonathan.Cameron@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 47ec9b417e ]
If acpi_processor_get_info() returned an error, pr and the associated
pr->throttling.shared_cpu_map were leaked.
The unwind code was in the wrong order wrt to setup, relying on
some unwind actions having no affect (clearing variables that were
never set etc). That makes it harder to reason about so reorder
and add appropriate labels to only undo what was actually set up
in the first place.
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240529133446.28446-6-Jonathan.Cameron@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit fadf231f0a ]
Rafael observed [1] that returning 0 from processor_add() will result in
acpi_default_enumeration() being called which will attempt to create a
platform device, but that makes little sense when the processor is known
to be not available. So just return the error code from acpi_processor_get_info()
instead.
Link: https://lore.kernel.org/all/CAJZ5v0iKU8ra9jR+EmgxbuNm=Uwx2m1-8vn_RAZ+aCiUVLe3Pw@mail.gmail.com/ [1]
Suggested-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240529133446.28446-5-Jonathan.Cameron@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 98f887f820 ]
On a ~2000 CPU powerpc system, hard lockups have been observed in the
workqueue code when stop_machine runs (in this case due to CPU hotplug).
This is due to lots of CPUs spinning in multi_cpu_stop, calling
touch_nmi_watchdog() which ends up calling wq_watchdog_touch().
wq_watchdog_touch() writes to the global variable wq_watchdog_touched,
and that can find itself in the same cacheline as other important
workqueue data, which slows down operations to the point of lockups.
In the case of the following abridged trace, worker_pool_idr was in
the hot line, causing the lockups to always appear at idr_find.
watchdog: CPU 1125 self-detected hard LOCKUP @ idr_find
Call Trace:
get_work_pool
__queue_work
call_timer_fn
run_timer_softirq
__do_softirq
do_softirq_own_stack
irq_exit
timer_interrupt
decrementer_common_virt
* interrupt: 900 (timer) at multi_cpu_stop
multi_cpu_stop
cpu_stopper_thread
smpboot_thread_fn
kthread
Fix this by having wq_watchdog_touch() only write to the line if the
last time a touch was recorded exceeds 1/4 of the watchdog threshold.
Reported-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 18e24deb1c ]
Warn in the case it is called with cpu == -1. This does not appear
to happen anywhere.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit bfe0857c20 ]
This reverts commit 5da226dbfc ("mm: skip CMA pages when they are not
available") and b7108d6631 ("Multi-gen LRU: skip CMA pages when they are
not eligible").
lruvec->lru_lock is highly contended and is held when calling
isolate_lru_folios. If the lru has a large number of CMA folios
consecutively, while the allocation type requested is not MIGRATE_MOVABLE,
isolate_lru_folios can hold the lock for a very long time while it skips
those. For FIO workload, ~150million order=0 folios were skipped to
isolate a few ZONE_DMA folios [1]. This can cause lockups [1] and high
memory pressure for extended periods of time [2].
Remove skipping CMA for MGLRU as well, as it was introduced in sort_folio
for the same resaon as 5da226dbfc.
[1] https://lore.kernel.org/all/CAOUHufbkhMZYz20aM_3rHZ3OcK4m2puji2FGpUpn_-DevGk3Kg@mail.gmail.com/
[2] https://lore.kernel.org/all/ZrssOrcJIDy8hacI@gmail.com/
[usamaarif642@gmail.com: also revert b7108d6631, per Johannes]
Link: https://lkml.kernel.org/r/9060a32d-b2d7-48c0-8626-1db535653c54@gmail.com
Link: https://lkml.kernel.org/r/357ac325-4c61-497a-92a3-bdbd230d5ec9@gmail.com
Link: https://lkml.kernel.org/r/9060a32d-b2d7-48c0-8626-1db535653c54@gmail.com
Fixes: 5da226dbfc ("mm: skip CMA pages when they are not available")
Signed-off-by: Usama Arif <usamaarif642@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Bharata B Rao <bharata@amd.com>
Cc: Breno Leitao <leitao@debian.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Zhaoyang Huang <huangzhaoyang@gmail.com>
Cc: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 97144ce008 ]
In skip_cma(), we can use folio_migratetype() to replace
get_pageblock_migratetype().
Link: https://lkml.kernel.org/r/20230825075735.52436-1-user@VERNHAO-MC1
Signed-off-by: Vern Hao <vernhao@tencent.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Stable-dep-of: bfe0857c20 ("Revert "mm: skip CMA pages when they are not available"")
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 2ab9d83026 upstream.
Ole reported that event->mmap_mutex is strictly insufficient to
serialize the AUX buffer, add a per RB mutex to fully serialize it.
Note that in the lock order comment the perf_event::mmap_mutex order
was already wrong, that is, it nesting under mmap_lock is not new with
this patch.
Fixes: 45bfb2e504 ("perf: Add AUX area to ring buffer for raw data streams")
Reported-by: Ole <ole@binarygecko.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 471ef0b5a8 upstream.
GCC's named address space checks errors out with:
drivers/clocksource/timer-of.c: In function ‘timer_of_irq_exit’:
drivers/clocksource/timer-of.c:29:46: error: passing argument 2 of
‘free_percpu_irq’ from pointer to non-enclosed address space
29 | free_percpu_irq(of_irq->irq, clkevt);
| ^~~~~~
In file included from drivers/clocksource/timer-of.c:8:
./include/linux/interrupt.h:201:43: note: expected ‘__seg_gs void *’
but argument is of type ‘struct clock_event_device *’
201 | extern void free_percpu_irq(unsigned int, void __percpu *);
| ^~~~~~~~~~~~~~~
drivers/clocksource/timer-of.c: In function ‘timer_of_irq_init’:
drivers/clocksource/timer-of.c:74:51: error: passing argument 4 of
‘request_percpu_irq’ from pointer to non-enclosed address space
74 | np->full_name, clkevt) :
| ^~~~~~
./include/linux/interrupt.h:190:56: note: expected ‘__seg_gs void *’
but argument is of type ‘struct clock_event_device *’
190 | const char *devname, void __percpu *percpu_dev_id)
Sparse warns about:
timer-of.c:29:46: warning: incorrect type in argument 2 (different address spaces)
timer-of.c:29:46: expected void [noderef] __percpu *
timer-of.c:29:46: got struct clock_event_device *clkevt
timer-of.c:74:51: warning: incorrect type in argument 4 (different address spaces)
timer-of.c:74:51: expected void [noderef] __percpu *percpu_dev_id
timer-of.c:74:51: got struct clock_event_device *clkevt
It appears the code is incorrect as reported by Uros Bizjak:
"The referred code is questionable as it tries to reuse
the clkevent pointer once as percpu pointer and once as generic
pointer, which should be avoided."
This change removes the percpu related code as no drivers is using it.
[Daniel: Fixed the description]
Fixes: dc11bae785 ("clocksource/drivers: Add timer-of common init routine")
Reported-by: Uros Bizjak <ubizjak@gmail.com>
Tested-by: Uros Bizjak <ubizjak@gmail.com>
Link: https://lore.kernel.org/r/20240819100335.2394751-1-daniel.lezcano@linaro.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 3d5c2f8e75 upstream.
The value written into the TPM CnV can only be updated into the hardware
when the counter increases. Additional writes to the CnV write buffer are
ignored until the register has been updated. Therefore, we need to check
if the CnV has been updated before continuing. This may require waiting for
1 counter cycle in the worst case.
Cc: stable@vger.kernel.org
Fixes: 059ab7b82e ("clocksource/drivers/imx-tpm: Add imx tpm timer support")
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Jason Liu <jason.hui.liu@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240725193355.1436005-2-Frank.Li@nxp.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 5b8843fcd4 upstream.
In tpm_set_next_event(delta), return -ETIME by wrong cast to int when delta
is larger than INT_MAX.
For example:
tpm_set_next_event(delta = 0xffff_fffe)
{
...
next = tpm_read_counter(); // assume next is 0x10
next += delta; // next will 0xffff_fffe + 0x10 = 0x1_0000_000e
now = tpm_read_counter(); // now is 0x10
...
return (int)(next - now) <= 0 ? -ETIME : 0;
^^^^^^^^^^
0x1_0000_000e - 0x10 = 0xffff_fffe, which is -2 when
cast to int. So return -ETIME.
}
To fix this, introduce a 'prev' variable and check if 'now - prev' is
larger than delta.
Cc: stable@vger.kernel.org
Fixes: 059ab7b82e ("clocksource/drivers/imx-tpm: Add imx tpm timer support")
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Jason Liu <jason.hui.liu@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240725193355.1436005-1-Frank.Li@nxp.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 48b9a8dabc upstream.
When removing a resource from vmci_resource_table in
vmci_resource_remove(), the search is performed using the resource
handle by comparing context and resource fields.
It is possible though to create two resources with different types
but same handle (same context and resource fields).
When trying to remove one of the resources, vmci_resource_remove()
may not remove the intended one, but the object will still be freed
as in the case of the datagram type in vmci_datagram_destroy_handle().
vmci_resource_table will still hold a pointer to this freed resource
leading to a use-after-free vulnerability.
BUG: KASAN: use-after-free in vmci_handle_is_equal include/linux/vmw_vmci_defs.h:142 [inline]
BUG: KASAN: use-after-free in vmci_resource_remove+0x3a1/0x410 drivers/misc/vmw_vmci/vmci_resource.c:147
Read of size 4 at addr ffff88801c16d800 by task syz-executor197/1592
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x82/0xa9 lib/dump_stack.c:106
print_address_description.constprop.0+0x21/0x366 mm/kasan/report.c:239
__kasan_report.cold+0x7f/0x132 mm/kasan/report.c:425
kasan_report+0x38/0x51 mm/kasan/report.c:442
vmci_handle_is_equal include/linux/vmw_vmci_defs.h:142 [inline]
vmci_resource_remove+0x3a1/0x410 drivers/misc/vmw_vmci/vmci_resource.c:147
vmci_qp_broker_detach+0x89a/0x11b9 drivers/misc/vmw_vmci/vmci_queue_pair.c:2182
ctx_free_ctx+0x473/0xbe1 drivers/misc/vmw_vmci/vmci_context.c:444
kref_put include/linux/kref.h:65 [inline]
vmci_ctx_put drivers/misc/vmw_vmci/vmci_context.c:497 [inline]
vmci_ctx_destroy+0x170/0x1d6 drivers/misc/vmw_vmci/vmci_context.c:195
vmci_host_close+0x125/0x1ac drivers/misc/vmw_vmci/vmci_host.c:143
__fput+0x261/0xa34 fs/file_table.c:282
task_work_run+0xf0/0x194 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x184/0x189 kernel/entry/common.c:187
exit_to_user_mode_prepare+0x11b/0x123 kernel/entry/common.c:220
__syscall_exit_to_user_mode_work kernel/entry/common.c:302 [inline]
syscall_exit_to_user_mode+0x18/0x42 kernel/entry/common.c:313
do_syscall_64+0x41/0x85 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x6e/0x0
This change ensures the type is also checked when removing
the resource from vmci_resource_table in vmci_resource_remove().
Fixes: bc63dedb7d ("VMCI: resource object implementation.")
Cc: stable@vger.kernel.org
Reported-by: George Kennedy <george.kennedy@oracle.com>
Signed-off-by: David Fernandez Gonzalez <david.fernandez.gonzalez@oracle.com>
Link: https://lore.kernel.org/r/20240828154338.754746-1-david.fernandez.gonzalez@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 6fd2894144 upstream.
Rescind offer handling relies on rescind callbacks for some of the
resources cleanup, if they are registered. It does not unregister
vmbus device for the primary channel closure, when callback is
registered. Without it, next onoffer does not come, rescind flag
remains set and device goes to unusable state.
Add logic to unregister vmbus for the primary channel in rescind callback
to ensure channel removal and relid release, and to ensure that next
onoffer can be received and handled properly.
Cc: stable@vger.kernel.org
Fixes: ca3cda6fcf ("uio_hv_generic: add rescind support")
Signed-off-by: Naman Jain <namjain@linux.microsoft.com>
Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Link: https://lore.kernel.org/r/20240829071312.1595-3-namjain@linux.microsoft.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit fb1adbd7e5 upstream.
For primary VM Bus channels, primary_channel pointer is always NULL. This
pointer is valid only for the secondary channels. Also, rescind callback
is meant for primary channels only.
Fix NULL pointer dereference by retrieving the device_obj from the parent
for the primary channel.
Cc: stable@vger.kernel.org
Fixes: ca3cda6fcf ("uio_hv_generic: add rescind support")
Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Signed-off-by: Naman Jain <namjain@linux.microsoft.com>
Link: https://lore.kernel.org/r/20240829071312.1595-2-namjain@linux.microsoft.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 4df153652c upstream.
Binder objects are processed and copied individually into the target
buffer during transactions. Any raw data in-between these objects is
copied as well. However, this raw data copy lacks an out-of-bounds
check. If the raw data exceeds the data section size then the copy
overwrites the offsets section. This eventually triggers an error that
attempts to unwind the processed objects. However, at this point the
offsets used to index these objects are now corrupted.
Unwinding with corrupted offsets can result in decrements of arbitrary
nodes and lead to their premature release. Other users of such nodes are
left with a dangling pointer triggering a use-after-free. This issue is
made evident by the following KASAN report (trimmed):
==================================================================
BUG: KASAN: slab-use-after-free in _raw_spin_lock+0xe4/0x19c
Write of size 4 at addr ffff47fc91598f04 by task binder-util/743
CPU: 9 UID: 0 PID: 743 Comm: binder-util Not tainted 6.11.0-rc4 #1
Hardware name: linux,dummy-virt (DT)
Call trace:
_raw_spin_lock+0xe4/0x19c
binder_free_buf+0x128/0x434
binder_thread_write+0x8a4/0x3260
binder_ioctl+0x18f0/0x258c
[...]
Allocated by task 743:
__kmalloc_cache_noprof+0x110/0x270
binder_new_node+0x50/0x700
binder_transaction+0x413c/0x6da8
binder_thread_write+0x978/0x3260
binder_ioctl+0x18f0/0x258c
[...]
Freed by task 745:
kfree+0xbc/0x208
binder_thread_read+0x1c5c/0x37d4
binder_ioctl+0x16d8/0x258c
[...]
==================================================================
To avoid this issue, let's check that the raw data copy is within the
boundaries of the data section.
Fixes: 6d98eb95b4 ("binder: avoid potential data leakage when copying txn")
Cc: Todd Kjos <tkjos@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20240822182353.2129600-1-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit e8c276d4dc upstream.
smatch warning:
drivers/misc/fastrpc.c:1926 fastrpc_req_mmap() error: double free of 'buf'
In fastrpc_req_mmap() error path, the fastrpc buffer is freed in
fastrpc_req_munmap_impl() if unmap is successful.
But in the end, there is an unconditional call to fastrpc_buf_free().
So the above case triggers the double free of fastrpc buf.
Fixes: 72fa6f7820 ("misc: fastrpc: Rework fastrpc_req_munmap")
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Sukrut Bellary <sukrut.bellary@linux.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20240902141409.70371-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 00dcf2fa44 upstream.
When operating in High-Speed, it is observed that DSTS[USBLNKST] doesn't
update link state immediately after receiving the wakeup interrupt. Since
wakeup event handler calls the resume callbacks, there is a chance that
function drivers can perform an ep queue, which in turn tries to perform
remote wakeup from send_gadget_ep_cmd(STARTXFER). This happens because
DSTS[[21:18] wasn't updated to U0 yet, it's observed that the latency of
DSTS can be in order of milli-seconds. Hence avoid calling gadget_wakeup
during startxfer to prevent unnecessarily issuing remote wakeup to host.
Fixes: c36d8e947a ("usb: dwc3: gadget: put link to U0 before Start Transfer")
Cc: stable@vger.kernel.org
Suggested-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Prashanth K <quic_prashk@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20240828064302.3796315-1-quic_prashk@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 9149c9b0c7 upstream.
This fix addresses STAR 9001285599, which only affects DWC_usb3 version
3.20a. The timer value for PM_LC_TIMER in DWC_usb3 3.20a for the Link
ECN changes is incorrect. If the PM TIMER ECN is enabled via GUCTL2[19],
the link compliance test (TD7.21) may fail. If the ECN is not enabled
(GUCTL2[19] = 0), the controller will use the old timer value (5us),
which is still acceptable for the link compliance test. Therefore, clear
GUCTL2[19] to pass the USB link compliance test: TD 7.21.
Cc: stable@vger.kernel.org
Signed-off-by: Faisal Hassan <quic_faisalh@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20240829094502.26502-1-quic_faisalh@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 96f9ab0d59 upstream.
The ad7124_soft_reset() function has the assumption that the chip will
assert the "power-on reset" bit in the STATUS register after a software
reset without any delay. The POR bit =0 is used to check if the chip
initialization is done.
A chip ID mismatch probe error appears intermittently when the probe
continues too soon and the ID register does not contain the expected
value.
Fix by adding a 200us delay after the software reset command is issued.
Fixes: b3af341bbd ("iio: adc: Add ad7124 support")
Signed-off-by: Dumitru Ceclan <dumitru.ceclan@analog.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20240731-ad7124-fix-v1-1-46a76aa4b9be@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 90826e0846 upstream.
The current implementation attempts to recover from an eventual glitch
in the clock by checking frstdata state after reading the first
channel's sample: If frstdata is low, it will reset the chip and
return -EIO.
This will only work in parallel mode, where frstdata pin is set low
after the 2nd sample read starts.
For the serial mode, according to the datasheet, "The FRSTDATA output
returns to a logic low following the 16th SCLK falling edge.", thus
after the Xth pulse, X being the number of bits in a sample, the check
will always be true, and the driver will not work at all in serial
mode if frstdata(optional) is defined in the devicetree as it will
reset the chip, and return -EIO every time read_sample is called.
Hence, this check must be removed for serial mode.
Fixes: b9618c0cac ("staging: IIO: ADC: New driver for AD7606/AD7606-6/AD7606-4")
Signed-off-by: Guillaume Stols <gstols@baylibre.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20240702-cleanup-ad7606-v3-1-18d5ea18770e@baylibre.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 2f6b92d0f6 upstream.
The ad7124_find_similar_live_cfg() computes the compare size by
substracting the address of the cfg struct from the address of the live
field. Because the live field is the first field in the struct, the
result is 0.
Also, the memcmp() call is made from the start of the cfg struct, which
includes the live and cfg_slot fields, which are not relevant for the
comparison.
Fix by grouping the relevant fields with struct_group() and use the
size of the group to compute the compare size; make the memcmp() call
from the address of the group.
Fixes: 7b8d045e49 ("iio: adc: ad7124: allow more than 8 channels")
Signed-off-by: Dumitru Ceclan <dumitru.ceclan@analog.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20240731-ad7124-fix-v1-2-46a76aa4b9be@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 8a3dcc970d upstream.
When the scale_type is IIO_VAL_INT_PLUS_MICRO or IIO_VAL_INT_PLUS_NANO
the scale passed as argument is only applied to the fractional part of
the value. Fix it by also multiplying the integer part by the scale
provided.
Fixes: 48e44ce0f8 ("iio:inkern: Add function to read the processed value")
Signed-off-by: Matteo Martelli <matteomartelli3@gmail.com>
Link: https://patch.msgid.link/20240730-iio-fix-scale-v1-1-6246638c8daa@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 84c65d8008 upstream.
If dma_get_slave_caps() fails, we need to release the dma channel before
returning an error to avoid leaking the channel.
Fixes: 2d6ca60f32 ("iio: Add a DMAengine framework based buffer")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240723-iio-fix-dmaengine-free-on-error-v1-1-2c7cbc9b92ff@baylibre.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit b48aa99175 upstream.
In ad9834_write_frequency() clk_get_rate() can return 0. In such case
ad9834_calc_freqreg() call will lead to division by zero. Checking
'if (fout > (clk_freq / 2))' doesn't protect in case of 'fout' is 0.
ad9834_write_frequency() is called from ad9834_write(), where fout is
taken from text buffer, which can contain any value.
Modify parameters checking.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 12b9d5bf76 ("Staging: IIO: DDS: AD9833 / AD9834 driver")
Suggested-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/20240703154506.25584-1-amishin@t-argos.ru
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
