The size of the buffers for storing context's and sessions can vary from
arch to arch as PAGE_SIZE can be anything between 4 kB and 256 kB (the
maximum for PPC64). Define a fixed buffer size set to 16 kB. This should be
enough for most use with three handles (that is how many we allow at the
moment). Parametrize the buffer size while doing this, so that it is easier
to revisit this later on if required.
Cc: stable@vger.kernel.org
Reported-by: Stefan Berger <stefanb@linux.ibm.com>
Fixes: 745b361e98 ("tpm: infrastructure for TPM spaces")
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Require that the TCG_PCR_EVENT2.digests.count value strictly matches the
value of TCG_EfiSpecIdEvent.numberOfAlgorithms in the event field of the
TCG_PCClientPCREvent event log header. Also require that
TCG_EfiSpecIdEvent.numberOfAlgorithms is non-zero.
The TCG PC Client Platform Firmware Profile Specification section 9.1
(Family "2.0", Level 00 Revision 1.04) states:
For each Hash algorithm enumerated in the TCG_PCClientPCREvent entry,
there SHALL be a corresponding digest in all TCG_PCR_EVENT2 structures.
Note: This includes EV_NO_ACTION events which do not extend the PCR.
Section 9.4.5.1 provides this description of
TCG_EfiSpecIdEvent.numberOfAlgorithms:
The number of Hash algorithms in the digestSizes field. This field MUST
be set to a value of 0x01 or greater.
Enforce these restrictions, as required by the above specification, in
order to better identify and ignore invalid sequences of bytes at the
end of an otherwise valid TPM2 event log. Firmware doesn't always have
the means necessary to inform the kernel of the actual event log size so
the kernel's event log parsing code should be stringent when parsing the
event log for resiliency against firmware bugs. This is true, for
example, when firmware passes the event log to the kernel via a reserved
memory region described in device tree.
POWER and some ARM systems use the "linux,sml-base" and "linux,sml-size"
device tree properties to describe the memory region used to pass the
event log from firmware to the kernel. Unfortunately, the
"linux,sml-size" property describes the size of the entire reserved
memory region rather than the size of the event long within the memory
region and the event log format does not include information describing
the size of the event log.
tpm_read_log_of(), in drivers/char/tpm/eventlog/of.c, is where the
"linux,sml-size" property is used. At the end of that function,
log->bios_event_log_end is pointing at the end of the reserved memory
region. That's typically 0x10000 bytes offset from "linux,sml-base",
depending on what's defined in the device tree source.
The firmware event log only fills a portion of those 0x10000 bytes and
the rest of the memory region should be zeroed out by firmware. Even in
the case of a properly zeroed bytes in the remainder of the memory
region, the only thing allowing the kernel's event log parser to detect
the end of the event log is the following conditional in
__calc_tpm2_event_size():
if (event_type == 0 && event_field->event_size == 0)
size = 0;
If that wasn't there, __calc_tpm2_event_size() would think that a 16
byte sequence of zeroes, following an otherwise valid event log, was
a valid event.
However, problems can occur if a single bit is set in the offset
corresponding to either the TCG_PCR_EVENT2.eventType or
TCG_PCR_EVENT2.eventSize fields, after the last valid event log entry.
This could confuse the parser into thinking that an additional entry is
present in the event log and exposing this invalid entry to userspace in
the /sys/kernel/security/tpm0/binary_bios_measurements file. Such
problems have been seen if firmware does not fully zero the memory
region upon a warm reboot.
This patch significantly raises the bar on how difficult it is for
stale/invalid memory to confuse the kernel's event log parser but
there's still, ultimately, a reliance on firmware to properly initialize
the remainder of the memory region reserved for the event log as the
parser cannot be expected to detect a stale but otherwise properly
formatted firmware event log entry.
Fixes: fd5c78694f ("tpm: fix handling of the TPM 2.0 event logs")
Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This set of patches contains a few preparatory patches to enable video
capture support from external camera modules. This is a dependency for
the V4L2 driver patches that will likely be merged in v5.9 or v5.10.
On top of that there are a couple of fixes across the board as well as
some improvements.
From a feature point of view this also adds support for horizontal
reflection and 180° rotation of planes.
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Merge tag 'drm/tegra/for-5.9-rc1' of ssh://git.freedesktop.org/git/tegra/linux into drm-next
drm/tegra: Changes for v5.9-rc1
This set of patches contains a few preparatory patches to enable video
capture support from external camera modules. This is a dependency for
the V4L2 driver patches that will likely be merged in v5.9 or v5.10.
On top of that there are a couple of fixes across the board as well as
some improvements.
From a feature point of view this also adds support for horizontal
reflection and 180° rotation of planes.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200717162011.1661788-1-thierry.reding@gmail.com
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Merge v5.8-rc6 into drm-next
I've got a silent conflict + two trees based on fixes to merge.
Fixes a silent merge with amdgpu
Signed-off-by: Dave Airlie <airlied@redhat.com>
Previously TLP may send multiple probes of new data in one
flight. This happens when the sender is cwnd limited. After the
initial TLP containing new data is sent, the sender receives another
ACK that acks partial inflight. It may re-arm another TLP timer
to send more, if no further ACK returns before the next TLP timeout
(PTO) expires. The sender may send in theory a large amount of TLP
until send queue is depleted. This only happens if the sender sees
such irregular uncommon ACK pattern. But it is generally undesirable
behavior during congestion especially.
The original TLP design restrict only one TLP probe per inflight as
published in "Reducing Web Latency: the Virtue of Gentle Aggression",
SIGCOMM 2013. This patch changes TLP to send at most one probe
per inflight.
Note that if the sender is app-limited, TLP retransmits old data
and did not have this issue.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit adc0daad36 ("dm: report suspended
device during destroy") broke integrity recalculation.
The problem is dm_suspended() returns true not only during suspend,
but also during resume. So this race condition could occur:
1. dm_integrity_resume calls queue_work(ic->recalc_wq, &ic->recalc_work)
2. integrity_recalc (&ic->recalc_work) preempts the current thread
3. integrity_recalc calls if (unlikely(dm_suspended(ic->ti))) goto unlock_ret;
4. integrity_recalc exits and no recalculating is done.
To fix this race condition, add a function dm_post_suspending that is
only true during the postsuspend phase and use it instead of
dm_suspended().
Signed-off-by: Mikulas Patocka <mpatocka redhat com>
Fixes: adc0daad36 ("dm: report suspended device during destroy")
Cc: stable vger kernel org # v4.18+
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Replace the spinlock that serializes the MC commands with a raw
spinlock. This is needed for the RT kernel because there are MC
commands sent in interrupt context.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Link: https://lore.kernel.org/r/20200717154800.17169-3-ioana.ciornei@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The MC bus has different types of devices that can be discovered on the
bus. Add the missing device types.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Link: https://lore.kernel.org/r/20200717154800.17169-2-ioana.ciornei@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The loop in libb/kobj_uevent.c that checked for KOBBJ_MAX is no longer
present, we do a much more sane ARRAY_SIZE() check instead. See
5c5daf657c ("Driver core: exclude kobject_uevent.c for
!CONFIG_HOTPLUG").
Signed-off-by: Garrit Franke <garritfranke@gmail.com>
Link: https://lore.kernel.org/r/20200716203100.7959-1-garritfranke@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that all the remaining users of cros_ec_cmd_xfer() has been removed,
make this function private to the cros_ec_proto module.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Drop the repeated word "the" in a comment.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Sudeep Dutt <sudeep.dutt@intel.com>
Cc: Ashutosh Dixit <ashutosh.dixit@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200719002943.20624-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Only its reorder field is actually used now, so remove the struct and
embed @reorder directly in parallel_data.
No functional change, just a cleanup.
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
There's no reason to have two interfaces when there's only one caller.
Removing _possible saves text and simplifies future changes.
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
A padata instance has effective cpumasks that store the user-supplied
masks ANDed with the online mask, but this middleman is unnecessary.
parallel_data keeps the same information around. Removing this saves
text and code churn in future changes.
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
padata_stop() has two callers and is unnecessary in both cases. When
pcrypt calls it before padata_free(), it's being unloaded so there are
no outstanding padata jobs[0]. When __padata_free() calls it, it's
either along the same path or else pcrypt initialization failed, which
of course means there are also no outstanding jobs.
Removing it simplifies padata and saves text.
[0] https://lore.kernel.org/linux-crypto/20191119225017.mjrak2fwa5vccazl@gondor.apana.org.au/
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
padata_start() is only used right after pcrypt allocates an instance
with all possible CPUs, when PADATA_INVALID can't happen, so there's no
need for a separate "start" step. It can be done during allocation to
save text, make using padata easier, and avoid unneeded calls in the
future.
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This contains few core changes and bunch of Intel driver updates:
- Adds definitions for 1.2 spec
- Sanyog left as a MAINTAINER and Bard took his place while Sanyog
is a reviewer now.
- Intel: Lots of updates to stream/dai handling, wake support and link
synchronization.
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Merge tag 'soundwire-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next
Vinod writes:
soundwire updates for 5.9-rc1
This contains few core changes and bunch of Intel driver updates:
- Adds definitions for 1.2 spec
- Sanyog left as a MAINTAINER and Bard took his place while Sanyog
is a reviewer now.
- Intel: Lots of updates to stream/dai handling, wake support and link
synchronization.
* tag 'soundwire-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: (31 commits)
Soundwire: intel_init: save Slave(s) _ADR info in sdw_intel_ctx
soundwire: intel: add wake interrupt support
soundwire: intel/cadence: merge Soundwire interrupt handlers/threads
soundwire: intel_init: use EXPORT_SYMBOL_NS
soundwire: intel_init: add implementation of sdw_intel_enable_irq()
soundwire: intel: introduce helper for link synchronization
soundwire: intel: introduce a helper to arm link synchronization
soundwire: intel: revisit SHIM programming sequences.
soundwire: intel: reuse code for wait loops to set/clear bits
soundwire: fix the kernel-doc comment
soundwire: sdw.h: fix indentation
soundwire: sdw.h: fix PRBS/Static_1 swapped definitions
soundwire: intel: don't free dma_data in DAI shutdown
soundwire: cadence: allocate/free dma_data in set_sdw_stream
soundwire: intel: remove stream allocation/free
soundwire: stream: add helper to startup/shutdown streams
soundwire: intel: implement get_sdw_stream() operations
MAINTAINERS: change SoundWire maintainer
soundwire: bus: initialize bus clock base and scale registers
soundwire: extend SDW_SLAVE_ENTRY
...
Add reverse-variants of qed_chain_get_elem_left{,u32}() to be able to
know current chain occupation. They will be used in the upcoming qede
XDP_REDIRECT code.
They share most of the logics with the mentioned ones, so were reused
to collapse the latters.
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Constify chain pointers and refactor qed_chain_get_elem_left{,u32}() a bit.
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Extend current infrastructure to store chain page size in a struct
and use it in all functions instead of fixed QED_CHAIN_PAGE_SIZE.
Its value remains the default one, but can be overridden in
qed_chain_init_params before chain allocation.
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To simplify qed_chain_alloc() prototype and call sites, introduce struct
qed_chain_init_params to specify chain params, and pass a pointer to
filled struct to the actual qed_chain_alloc() instead of a long list
of separate arguments.
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
qed_chain_init*() are used in one file/place on "cold" path only, so they
can be uninlined and moved next to the call sites.
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
PBL chain elements are actually DMA addresses stored in __le64, but
currently their size is hardcoded to 8, and DMA addresses are assigned
via cast to variable-sized dma_addr_t without any bitwise conversions.
Change the type of pbl_virt array to match the actual one, add a new
field to store the size of allocated DMA memory and sanitize elements
assignment.
Misc: give more logic names to the members of qed_chain::pbl_sp embedded
struct.
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reformat structs and macros definitions a bit prior to making functional
changes.
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For RPMh this fixes an issue where ktime was used during suspend, allows
the driver to be used on ARM targets and some minor cleanups.
It adds support for the latest format version in the socinfo driver and
adds identifiers for SM8250 and SDM630.
SMD-RPM gains compatibles for MSM8994 and MSM8936 and the Qualcomm SCM
gains compatibles MSM8994 and IPQ8074.
The GENI core code gains interconnect path voting and performance level
support, with subsequent patches integrating this with the SPI, I2C,
UART and QSPI drivers.
Following this the KGDB support for the GENI serial driver is improved,
the performance related to chip-select is improved for SPI and QSPI.
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Merge tag 'qcom-drivers-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers
Qualcomm driver updates for v5.9
For RPMh this fixes an issue where ktime was used during suspend, allows
the driver to be used on ARM targets and some minor cleanups.
It adds support for the latest format version in the socinfo driver and
adds identifiers for SM8250 and SDM630.
SMD-RPM gains compatibles for MSM8994 and MSM8936 and the Qualcomm SCM
gains compatibles MSM8994 and IPQ8074.
The GENI core code gains interconnect path voting and performance level
support, with subsequent patches integrating this with the SPI, I2C,
UART and QSPI drivers.
Following this the KGDB support for the GENI serial driver is improved,
the performance related to chip-select is improved for SPI and QSPI.
* tag 'qcom-drivers-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (35 commits)
soc: qcom: geni: Fix NULL pointer dereference
tty: serial: qcom-geni-serial: Drop the icc bw votes in suspend for console
serial: qcom_geni_serial: Always use 4 bytes per TX FIFO word
serial: qcom_geni_serial: Make kgdb work even if UART isn't console
spi: spi-geni-qcom: Get rid of most overhead in prepare_message()
spi: spi-geni-qcom: Set the clock properly at runtime resume
spi: spi-geni-qcom: Avoid clock setting if not needed
spi: spi-qcom-qspi: Set an autosuspend delay of 250 ms
spi: spi-qcom-qspi: Avoid clock setting if not needed
spi: spi-qcom-qspi: Use OPP API to set clk/perf state
firmware: qcom_scm: Add msm8994 compatible
firmware: qcom_scm: Fix legacy convention SCM accessors
<linux/of.h>: add stub for of_get_next_parent() to fix qcom build error
dt-bindings: firmware: qcom: Add compatible for IPQ8074 SoC
spi: spi-geni-qcom: Use OPP API to set clk/perf state
tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state
spi: spi-qcom-qspi: Add interconnect support
spi: spi-geni-qcom: Add interconnect support
spi: spi-geni-qcom: Combine the clock setting code
tty: serial: qcom_geni_serial: Add interconnect support
...
Link: https://lore.kernel.org/r/20200721044812.3429652-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Update SCU irq code to call pm_system_wakeup() in general MU IRQ
handler, so that system can be waked up when MU IRQ arrives.
- Move i.MX SCU soc driver into imx firmware folder to get it
initialized from i.MX SCU firmware driver.
- Clean up soc-imx-scu driver a bit by using devm_kasprintf().
- Correct postfix setting for cm40 power domain in scu-pd driver.
- Add resource management support for IMX_SCU firmware driver.
- Add more cm4 resources to i.MX SCU power domain driver.
- Select ARM_GIC_V3 from SOC_IMX8M for being able to use GICv3 driver
in AARCH32 mode Linux on AARCH64 hardware.
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Merge tag 'imx-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers
i.MX drivers change for 5.9:
- Update SCU irq code to call pm_system_wakeup() in general MU IRQ
handler, so that system can be waked up when MU IRQ arrives.
- Move i.MX SCU soc driver into imx firmware folder to get it
initialized from i.MX SCU firmware driver.
- Clean up soc-imx-scu driver a bit by using devm_kasprintf().
- Correct postfix setting for cm40 power domain in scu-pd driver.
- Add resource management support for IMX_SCU firmware driver.
- Add more cm4 resources to i.MX SCU power domain driver.
- Select ARM_GIC_V3 from SOC_IMX8M for being able to use GICv3 driver
in AARCH32 mode Linux on AARCH64 hardware.
* tag 'imx-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
soc: imx: select ARM_GIC_V3 for i.MX8M
firmware: imx: Move i.MX SCU soc driver into imx firmware folder
firmware: imx: scu-pd: add more cm4 resources
firmware: imx: add resource management api
firmware: imx: scu-pd: fix cm40 power domain
soc: imx: scu: use devm_kasprintf
firmware: imx: make sure MU irq can wake up system from suspend mode
Link: https://lore.kernel.org/r/20200720085536.24138-1-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This tag moves the reset-simple header out of drivers/reset for use by
drivers outside of drivers/reset, adds a .reset() callback to
reset-simple, converts i.MX reset bindings to json-schema, fixes a
compile warning in the reset-intel-gw driver, and replaces some HTTP
links with HTTPS ones in comments.
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Merge tag 'reset-for-v5.9' of git://git.pengutronix.de/pza/linux into arm/drivers
Reset controller updates for v5.9
This tag moves the reset-simple header out of drivers/reset for use by
drivers outside of drivers/reset, adds a .reset() callback to
reset-simple, converts i.MX reset bindings to json-schema, fixes a
compile warning in the reset-intel-gw driver, and replaces some HTTP
links with HTTPS ones in comments.
* tag 'reset-for-v5.9' of git://git.pengutronix.de/pza/linux:
reset: Replace HTTP links with HTTPS ones
reset: intel: fix a compile warning about REG_OFFSET redefined
dt-bindings: reset: Convert i.MX7 reset to json-schema
dt-bindings: reset: Convert i.MX reset to json-schema
reset: simple: Add reset callback
reset: Move reset-simple header out of drivers/reset
Link: https://lore.kernel.org/r/b718f052e38abbaac599d80645376b75e54aa5bd.camel@pengutronix.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Alexei Starovoitov says:
====================
pull-request: bpf-next 2020-07-21
The following pull-request contains BPF updates for your *net-next* tree.
We've added 46 non-merge commits during the last 6 day(s) which contain
a total of 68 files changed, 4929 insertions(+), 526 deletions(-).
The main changes are:
1) Run BPF program on socket lookup, from Jakub.
2) Introduce cpumap, from Lorenzo.
3) s390 JIT fixes, from Ilya.
4) teach riscv JIT to emit compressed insns, from Luke.
5) use build time computed BTF ids in bpf iter, from Yonghong.
====================
Purely independent overlapping changes in both filter.h and xdp.h
Signed-off-by: David S. Miller <davem@davemloft.net>
Some LED controllers may come with an internal HW triggering mechanism
for the LED and the ability to switch between SW control and the
internal HW control. This includes most PHYs, various ethernet switches,
the Turris Omnia LED controller or AXP20X PMIC.
This adds support for registering such triggers.
This code is based on work by Pavel Machek <pavel@ucw.cz> and
Ondřej Jirman <megous@megous.com>.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Add multicolor framework support for the lp55xx family.
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Introduce a multicolor class that groups colored LEDs
within a LED node.
The multicolor class groups monochrome LEDs and allows controlling two
aspects of the final combined color: hue and lightness. The former is
controlled via the intensity file and the latter is controlled
via brightness file.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
[squashed leds: multicolor: Fix camel case in documentation in]
When reading registers defined by the PCIe spec, use the names already
defined by the PCI core. This makes maintenance of the PCI core and
drivers easier. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200721212336.1159079-6-helgaas@kernel.org
[ additional replacements due to changes in my tree - gregkh ]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Instead of hard-coding the location of the L1 PM Substates capability based
on the Device ID, search for it in the extended capabilities list. This
works for any device, as long as it implements the L1 PM Substates
capability correctly, so it doesn't require maintenance as new devices are
added. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200721212336.1159079-5-helgaas@kernel.org
[ minor addition due to differences in my tree - gregkh]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
rtsx_pci_read_config_dword() and similar wrappers around the PCI config
accessors add very little value, and they obscure the fact that often we
are accessing standard PCI registers that should be coordinated with the
PCI core.
Remove the wrappers and use the PCI config accessors directly. No
functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200721212336.1159079-4-helgaas@kernel.org
[ fixed up some other instances as original patch was based on old tree - gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are no more uses of struct rtsx_pcr.pcie_cap. Remove it.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200721212336.1159079-3-helgaas@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The following commit:
14533a16c4 ("thermal/cpu-cooling, sched/core: Move the arch_set_thermal_pressure() API to generic scheduler code")
moved the definition of arch_set_thermal_pressure() to sched/core.c, but
kept its declaration in linux/arch_topology.h. When building e.g. an x86
kernel with CONFIG_SCHED_THERMAL_PRESSURE=y, cpufreq_cooling.c ends up
getting the declaration of arch_set_thermal_pressure() from
include/linux/arch_topology.h, which is somewhat awkward.
On top of this, sched/core.c unconditionally defines
o The thermal_pressure percpu variable
o arch_set_thermal_pressure()
while arch_scale_thermal_pressure() does nothing unless redefined by the
architecture.
arch_*() functions are meant to be defined by architectures, so revert the
aforementioned commit and re-implement it in a way that keeps
arch_set_thermal_pressure() architecture-definable, and doesn't define the
thermal pressure percpu variable for kernels that don't need
it (CONFIG_SCHED_THERMAL_PRESSURE=n).
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200712165917.9168-2-valentin.schneider@arm.com
The "ticks" parameter was added in commit 0f004f5a69 ("sched: Cure more
NO_HZ load average woes") since calc_global_nohz() was called and needed
the "ticks" argument.
But in commit c308b56b53 ("sched: Fix nohz load accounting -- again!")
it became unused as the function calc_global_nohz() dropped using "ticks".
Fixes: c308b56b53 ("sched: Fix nohz load accounting -- again!")
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1593628458-32290-1-git-send-email-paul.gortmaker@windriver.com
Dave hit the problem fixed by commit:
b6e13e8582 ("sched/core: Fix ttwu() race")
and failed to understand much of the code involved. Per his request a
few comments to (hopefully) clarify things.
Requested-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200702125211.GQ4800@hirez.programming.kicks-ass.net
Normally smp_store_release() or cmpxchg_release() is paired with
smp_load_acquire(). Sometimes smp_load_acquire() can be replaced with
the more lightweight READ_ONCE(). However, for this to be safe, all the
published memory must only be accessed in a way that involves the
pointer itself. This may not be the case if allocating the object also
involves initializing a static or global variable, for example.
fsverity_info::tree_params.hash_alg->tfm is a crypto_ahash object that's
internal to and is allocated by the crypto subsystem. So by using
READ_ONCE() for ->i_verity_info, we're relying on internal
implementation details of the crypto subsystem.
Remove this fragile assumption by using smp_load_acquire() instead.
Also fix the cmpxchg logic to correctly execute an ACQUIRE barrier when
losing the cmpxchg race, since cmpxchg doesn't guarantee a memory
barrier on failure.
(Note: I haven't seen any real-world problems here. This change is just
fixing the code to be guaranteed correct and less fragile.)
Fixes: fd2d1acfca ("fs-verity: add the hook for file ->open()")
Link: https://lore.kernel.org/r/20200721225920.114347-6-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Normally smp_store_release() or cmpxchg_release() is paired with
smp_load_acquire(). Sometimes smp_load_acquire() can be replaced with
the more lightweight READ_ONCE(). However, for this to be safe, all the
published memory must only be accessed in a way that involves the
pointer itself. This may not be the case if allocating the object also
involves initializing a static or global variable, for example.
fscrypt_info includes various sub-objects which are internal to and are
allocated by other kernel subsystems such as keyrings and crypto. So by
using READ_ONCE() for ->i_crypt_info, we're relying on internal
implementation details of these other kernel subsystems.
Remove this fragile assumption by using smp_load_acquire() instead.
(Note: I haven't seen any real-world problems here. This change is just
fixing the code to be guaranteed correct and less fragile.)
Fixes: e37a784d8b ("fscrypt: use READ_ONCE() to access ->i_crypt_info")
Link: https://lore.kernel.org/r/20200721225920.114347-5-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add an interface to configure the advertisement for a clause 22 PCS
PHY, and set the AN enable flag in the BMCR appropriately.
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
