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2022-03-09net/mlx5e: SHAMPO, reduce TIR indicationBen Ben-Ishay
SHAMPO is an RQ / WQ feature, an indication was added to the TIR in the first place to enforce suitability between connected TIR and RQ, this enforcement does not exist in current the Firmware implementation and was redundant in the first place. Fixes: 83439f3c37aa ("net/mlx5e: Add HW-GRO offload") Signed-off-by: Ben Ben-Ishay <benishay@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-03-09net/mlx5: Fix size field in bufferx_reg structMohammad Kabat
According to HW spec the field "size" should be 16 bits in bufferx register. Fixes: e281682bf294 ("net/mlx5_core: HW data structs/types definitions cleanup") Signed-off-by: Mohammad Kabat <mohammadkab@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-03-09arm64/mte: Remove asymmetric mode from the prctl() interfaceMark Brown
As pointed out by Evgenii Stepanov one potential issue with the new ABI for enabling asymmetric is that if there are multiple places where MTE is configured in a process, some of which were compiled with the old prctl.h and some of which were compiled with the new prctl.h, there may be problems keeping track of which MTE modes are requested. For example some code may disable only sync and async modes leaving asymmetric mode enabled when it intended to fully disable MTE. In order to avoid such mishaps remove asymmetric mode from the prctl(), instead implicitly allowing it if both sync and async modes are requested. This should not disrupt userspace since a process requesting both may already see a mix of sync and async modes due to differing defaults between CPUs or changes in default while the process is running but it does mean that userspace is unable to explicitly request asymmetric mode without changing the system default for CPUs. Reported-by: Evgenii Stepanov <eugenis@google.com> Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Evgenii Stepanov <eugenis@google.com> Cc: Peter Collingbourne <pcc@google.com> Cc: Joey Gouly <joey.gouly@arm.com> Cc: Branislav Rankov <branislav.rankov@arm.com> Link: https://lore.kernel.org/r/20220309131200.112637-1-broonie@kernel.org Signed-off-by: Will Deacon <will@kernel.org>
2022-03-09block: add ->poll_bio to block_device_operationsMing Lei
Prepare for supporting IO polling for bio-based driver. Add ->poll_bio callback so that bio-based driver can provide their own logic for polling bio. Also fix ->submit_bio_bio typo in comment block above __submit_bio_noacct. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2022-03-09net: tcp: fix shim definition of tcp_inbound_md5_hashVladimir Oltean
When CONFIG_TCP_MD5SIG isn't enabled, there is a compilation bug due to the fact that the static inline definition of tcp_inbound_md5_hash() has an unexpected semicolon. Remove it. Fixes: 1330b6ef3313 ("skb: make drop reason booleanable") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20220309122012.668986-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-09dt-bindings: clock: add QCOM SM6125 display clock bindingsMartin Botka
Add device tree bindings for display clock controller for Qualcomm Technology Inc's SM6125 SoC. Signed-off-by: Martin Botka <martin.botka@somainline.org> Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220303131812.302302-3-marijn.suijten@somainline.org
2022-03-09clk: qcom: gcc: Add emac GDSC support for SM8150Bhupesh Sharma
Add the EMAC GDSC defines and driver structures for SM8150. Cc: Stephen Boyd <sboyd@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220303084824.284946-4-bhupesh.sharma@linaro.org
2022-03-09clk: qcom: gcc: Add UFS_CARD and UFS_PHY GDSCs for SM8150Bhupesh Sharma
Add the UFS_CARD and UFS_PHY GDSC defines & driver structures for SM8150. Cc: Stephen Boyd <sboyd@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220303082140.240745-2-bhupesh.sharma@linaro.org
2022-03-09clk: qcom: gcc: Add PCIe0 and PCIe1 GDSC for SM8150Bhupesh Sharma
Add the PCIe0 and PCIe1 GDSC defines & driver structures for SM8150. Cc: Stephen Boyd <sboyd@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220302203045.184500-4-bhupesh.sharma@linaro.org
2022-03-09clk: qcom: smd: Add missing RPM clocks for msm8992/4Konrad Dybcio
XO and MSS_CFG were omitted when first adding the clocks for these SoCs. Add them, and while at it, move the XO clock to the top of the definition list, as ideally everyone should start using it sooner or later.. Fixes: b4297844995f ("clk: qcom: smd: Add support for MSM8992/4 rpm clocks") Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220226214126.21209-2-konrad.dybcio@somainline.org
2022-03-09Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec Steffen Klassert says: ==================== pull request (net): ipsec 2022-03-09 1) Fix IPv6 PMTU discovery for xfrm interfaces. From Lina Wang. 2) Revert failing for policies and states that are configured with XFRMA_IF_ID 0. It broke a user configuration. From Kai Lueke. 3) Fix a possible buffer overflow in the ESP output path. 4) Fix ESP GSO for tunnel and BEET mode on inter address family tunnels. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-09regulator: Add bindings for Richtek RT5190A PMICChiYuan Huang
Add bindings for Richtek RT5190A PMIC. Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/1646812903-32496-2-git-send-email-u0084500@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-09ASoC: Intel: soc-acpi: quirk topology filename dynamicallyPierre-Louis Bossart
Different topology filenames may be required depending on which SSP is used, and whether or not digital mics are present. This patch adds a tplg_quirk_mask and in the case of the SOF driver adds the relevant configurations. This is a short-term solution to the ES8336 support issues. In a long-term solution, we would need an interface where the machine driver or platform driver have the ability to alter the topology hard-coded low-level hardware support, e.g. by substituting an interface for another, or disabling an interface that is not supported on a given skew. BugLink: https://github.com/thesofproject/linux/issues/3248 Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Link: https://lore.kernel.org/r/20220308192610.392950-7-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-09ALSA: intel-nhlt: add helper to detect SSP link maskPierre-Louis Bossart
The NHLT information can be used to figure out which SSPs are enabled in a platform. The 'SSP' link type is too broad for machine drivers, since it can cover the Bluetooth sideband and the analog audio codec connections, so this helper exposes a parameter to filter with the device type (DEVICE_I2S refers to analog audio codec in NHLT parlance). The helper returns a mask, since more than one SSP may be used for analog audio, e.g. the NHLT spec describes the use of SSP0 for amplifiers and SSP1 for headset codec. Note that if more than one bit is set, it's impossible to determine which SSP is connected to what external component. Additional platform-specific information based on e.g. DMI quirks would still be required in the machine driver to configure the relevant dailinks. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Acked-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20220308192610.392950-5-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-09ASoC: soc-acpi: add information on I2S/TDM link maskPierre-Louis Bossart
The platform driver may have information on which I2S/TDM link(s) to enable in the machine driver. In the case of Intel devices, this may be extracted from NHLT tables in platform firmware. This link information is necessary to make sure machine driver and topology are aligned. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Link: https://lore.kernel.org/r/20220308192610.392950-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-09ASoC: soc-acpi: fix kernel-doc descriptorPierre-Louis Bossart
Add missing dmic_num mention and clarify that 'links' mean 'SoundWire links', not to be used for other links. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Link: https://lore.kernel.org/r/20220308192610.392950-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-09ASoC: SOF: make struct snd_sof_dai IPC agnosticRanjani Sridharan
Remove the comp_dai and dai_config members of struct snd_sof_dai and replace it with a void *private field. Introduce a new struct sof_dai_private_data that will contain the pointer to these two fields. The topology parser will populate this structure and save it as part of the "private" member in snd_sof_dai. Change all users of these fields to use the private member instead. Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20220308164344.577647-18-ranjani.sridharan@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-09ASoC: SOF: make struct snd_sof_widget IPC agnosticRanjani Sridharan
Parse the UUID token and save it in the new uuid field in struct snd_sof_widget. struct sof_ipc_comp_ext is no longer needed. So remove it too. Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20220308164344.577647-12-ranjani.sridharan@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-09kasan: fix a missing header include of static_keys.hJoey Gouly
The kasan-enabled.h header relies on static keys, so make sure to include the header to avoid compilation errors (with JUMP_LABEL=n). It fixes the following: ./include/linux/kasan-enabled.h:9:1: warning: data definition has no type or storage class 9 | DECLARE_STATIC_KEY_FALSE(kasan_flag_enabled); | ^~~~~~~~~~~~~~~~~~~~~~~~ error: type defaults to 'int' in declaration of 'DECLARE_STATIC_KEY_FALSE' [-Werror=implicit-int] Fixes: f9b5e46f4097eb29 ("kasan: split kasan_*enabled() functions into a separate header") Cc: Peter Collingbourne <pcc@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Acked-by: Andrey Konovalov <andreyknvl@gmail.com> Signed-off-by: Joey Gouly <joey.gouly@arm.com> Link: https://lore.kernel.org/r/20220301154518.19456-1-joey.gouly@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2022-03-09skb: make drop reason booleanableJakub Kicinski
We have a number of cases where function returns drop/no drop decision as a boolean. Now that we want to report the reason code as well we have to pass extra output arguments. We can make the reason code evaluate correctly as bool. I believe we're good to reorder the reasons as they are reported to user space as strings. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-09net: dsa: felix: avoid early deletion of host FDB entriesVladimir Oltean
The Felix driver declares FDB isolation but puts all standalone ports in VID 0. This is mostly problem-free as discussed with Alvin here: https://patchwork.kernel.org/project/netdevbpf/cover/20220302191417.1288145-1-vladimir.oltean@nxp.com/#24763870 however there is one catch. DSA still thinks that FDB entries are installed on the CPU port as many times as there are user ports, and this is problematic when multiple user ports share the same MAC address. Consider the default case where all user ports inherit their MAC address from the DSA master, and then the user runs: ip link set swp0 address 00:01:02:03:04:05 The above will make dsa_slave_set_mac_address() call dsa_port_standalone_host_fdb_add() for 00:01:02:03:04:05 in port 0's standalone database, and dsa_port_standalone_host_fdb_del() for the old address of swp0, again in swp0's standalone database. Both the ->port_fdb_add() and ->port_fdb_del() will be propagated down to the felix driver, which will end up deleting the old MAC address from the CPU port. But this is still in use by other user ports, so we end up breaking unicast termination for them. There isn't a problem in the fact that DSA keeps track of host standalone addresses in the individual database of each user port: some drivers like sja1105 need this. There also isn't a problem in the fact that some drivers choose the same VID/FID for all standalone ports. It is just that the deletion of these host addresses must be delayed until they are known to not be in use any longer, and only the driver has this knowledge. Since DSA keeps these addresses in &cpu_dp->fdbs and &cpu_db->mdbs, it is just a matter of walking over those lists and see whether the same MAC address is present on the CPU port in the port db of another user port. I have considered reusing the generic dsa_port_walk_fdbs() and dsa_port_walk_mdbs() schemes for this, but locking makes it difficult. In the ->port_fdb_add() method and co, &dp->addr_lists_lock is held, but dsa_port_walk_fdbs() also acquires that lock. Also, even assuming that we introduce an unlocked variant of the address iterator, we'd still need some relatively complex data structures, and a void *ctx in the dsa_fdb_walk_cb_t which we don't currently pass, such that drivers are able to figure out, after iterating, whether the same MAC address is or isn't present in the port db of another port. All the above, plus the fact that I expect other drivers to follow the same model as felix where all standalone ports use the same FID, made me conclude that a generic method provided by DSA is necessary: dsa_fdb_present_in_other_db() and the mdb equivalent. Felix calls this from the ->port_fdb_del() handler for the CPU port, when the database was classified to either a port db, or a LAG db. For symmetry, we also call this from ->port_fdb_add(), because if the address was installed once, then installing it a second time serves no purpose: it's already in hardware in VID 0 and it affects all standalone ports. This change moves dsa_db_equal() from switch.c to dsa.c, since it now has one more caller. Fixes: 54c319846086 ("net: mscc: ocelot: enforce FDB isolation when VLAN-unaware") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-08mptcp: introduce implicit endpointsPaolo Abeni
In some edge scenarios, an MPTCP subflows can use a local address mapped by a "implicit" endpoint created by the in-kernel path manager. Such endpoints presence can be confusing, as it's creation is hard to track and will prevent the later endpoint creation from the user-space using the same address. Define a new endpoint flag to mark implicit endpoints and allow the user-space to replace implicit them with user-provided data at endpoint creation time. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-08mptcp: add tracepoint in mptcp_sendmsg_fragGeliang Tang
The tracepoint in get_mapping_status() only dumped the incoming mpext fields. This patch added a new tracepoint in mptcp_sendmsg_frag() to dump the outgoing mpext too. Signed-off-by: Geliang Tang <geliang.tang@suse.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-08scsi: don't use disk->private_data to find the scsi_driverChristoph Hellwig
Requiring every ULP to have the scsi_drive as first member of the private data is rather fragile and not necessary anyway. Just use the driver hanging off the SCSI device instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20220308055200.735835-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-08blk-mq: manage hctx map via xarrayMing Lei
First code becomes more clean by switching to xarray from plain array. Second use-after-free on q->queue_hw_ctx can be fixed because queue_for_each_hw_ctx() may be run when updating nr_hw_queues is in-progress. With this patch, q->hctx_table is defined as xarray, and this structure will share same lifetime with request queue, so queue_for_each_hw_ctx() can use q->hctx_table to lookup hctx reliably. Reported-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220308073219.91173-7-ming.lei@redhat.com [axboe: fix blk_mq_hw_ctx forward declaration] Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-08fs: remove fs.f_write_hintChristoph Hellwig
The value is now completely unused except for reporting it back through the F_GET_FILE_RW_HINT ioctl, so remove the value and the two ioctls for it. Trying to use the F_SET_FILE_RW_HINT and F_GET_FILE_RW_HINT fcntls will now return EINVAL, just like it would on a kernel that never supported this functionality in the first place. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://lore.kernel.org/r/20220308060529.736277-3-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-08fs: remove kiocb.ki_hintChristoph Hellwig
This field is entirely unused now except for a tracepoint in f2fs, so remove it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://lore.kernel.org/r/20220308060529.736277-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-08dt-bindings: clock: qcom: rpmcc: Add RPM Modem SubSystem (MSS) clocksKonrad Dybcio
Add the missing clock definitions. Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220226214126.21209-1-konrad.dybcio@somainline.org
2022-03-08dt-bindings: reset: add ipq8064 ce5 resetsAnsuel Smith
Add ipq8064 ce5 resets needed for CryptoEngine gcc driver. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Tested-by: Jonathan McDowell <noodles@earth.li> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220226135235.10051-14-ansuelsmth@gmail.com
2022-03-08dt-bindings: clock: add ipq8064 ce5 clk defineAnsuel Smith
Add ipq8064 ce5 clk define needed for CryptoEngine in gcc driver. Define CE5_SRC is not used so it's OK to change and we align it to the QSDK naming. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Tested-by: Jonathan McDowell <noodles@earth.li> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220226135235.10051-12-ansuelsmth@gmail.com
2022-03-08dt-bindings: clock: add SM6350 QCOM Graphics clock bindingsKonrad Dybcio
Add device tree bindings for graphics clock controller for Qualcomm Technology Inc's SM6350 SoCs. Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220222011534.3502-3-konrad.dybcio@somainline.org
2022-03-08dt-bindings: clock: add QCOM SM6350 display clock bindingsKonrad Dybcio
Add device tree bindings for display clock controller for Qualcomm Technology Inc's SM6350 SoC. Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220222011534.3502-1-konrad.dybcio@somainline.org
2022-03-08prlimit: do not grab the tasklist_lockBarret Rhoden
Unnecessarily grabbing the tasklist_lock can be a scalability bottleneck for workloads that also must grab the tasklist_lock for waiting, killing, and cloning. The tasklist_lock was grabbed to protect tsk->sighand from disappearing (becoming NULL). tsk->signal was already protected by holding a reference to tsk. update_rlimit_cpu() assumed tsk->sighand != NULL. With this commit, it attempts to lock_task_sighand(). However, this means that update_rlimit_cpu() can fail. This only happens when a task is exiting. Note that during exec, sighand may *change*, but it will not be NULL. Prior to this commit, the do_prlimit() ensured that update_rlimit_cpu() would not fail by read locking the tasklist_lock and checking tsk->sighand != NULL. If update_rlimit_cpu() fails, there may be other tasks that are not exiting that share tsk->signal. However, the group_leader is the last task to be released, so if we cannot update_rlimit_cpu(group_leader), then the entire process is exiting. The only other caller of update_rlimit_cpu() is selinux_bprm_committing_creds(). It has tsk == current, so update_rlimit_cpu() cannot fail (current->sighand cannot disappear until current exits). This change resulted in a 14% speedup on a microbenchmark where parents kill and wait on their children, and children getpriority, setpriority, and getrlimit. Signed-off-by: Barret Rhoden <brho@google.com> Link: https://lkml.kernel.org/r/20220106172041.522167-4-brho@google.com Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2022-03-08prlimit: make do_prlimit() staticBarret Rhoden
There are no other callers in the kernel. Fixed up a comment format and whitespace issue when moving do_prlimit() higher in sys.c. Signed-off-by: Barret Rhoden <brho@google.com> Link: https://lkml.kernel.org/r/20220106172041.522167-3-brho@google.com Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2022-03-08coredump: Use the vma snapshot in fill_files_noteEric W. Biederman
Matthew Wilcox reported that there is a missing mmap_lock in file_files_note that could possibly lead to a user after free. Solve this by using the existing vma snapshot for consistency and to avoid the need to take the mmap_lock anywhere in the coredump code except for dump_vma_snapshot. Update the dump_vma_snapshot to capture vm_pgoff and vm_file that are neeeded by fill_files_note. Add free_vma_snapshot to free the captured values of vm_file. Reported-by: Matthew Wilcox <willy@infradead.org> Link: https://lkml.kernel.org/r/20220131153740.2396974-1-willy@infradead.org Cc: stable@vger.kernel.org Fixes: a07279c9a8cd ("binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot") Fixes: 2aa362c49c31 ("coredump: extend core dump note section to contain file names of mapped files") Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2022-03-08PM: sleep: Add device name to suspend_report_result()Youngjin Jang
Currently, suspend_report_result() prints only function information. If any driver uses a common PM function, nobody knows who exactly called the failing function. A device pinter is needed to recognize the failing device. For example: PM: dpm_run_callback(): pnp_bus_suspend+0x0/0x10 returns 0 PM: dpm_run_callback(): pci_pm_suspend+0x0/0x150 returns 0 become after the change: serial 00:05: PM: dpm_run_callback(): pnp_bus_suspend+0x0/0x10 returns 0 pci 0000:00:01.3: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x150 returns 0 Signed-off-by: Youngjin Jang <yj84.jang@samsung.com> [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-03-08coredump: Snapshot the vmas in do_coredumpEric W. Biederman
Move the call of dump_vma_snapshot and kvfree(vma_meta) out of the individual coredump routines into do_coredump itself. This makes the code less error prone and easier to maintain. Make the vma snapshot available to the coredump routines in struct coredump_params. This makes it easier to change and update what is captures in the vma snapshot and will be needed for fixing fill_file_notes. Reviewed-by: Jann Horn <jannh@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2022-03-08coredump: Move definition of struct coredump_params into coredump.hEric W. Biederman
Move the definition of struct coredump_params into coredump.h where it belongs. Remove the slightly errorneous comment explaining why struct coredump_params was declared in binfmts.h. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2022-03-08Merge tag 'fuse-fixes-5.17-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse fixes from Miklos Szeredi: - Fix an issue with splice on the fuse device - Fix a regression in the fileattr API conversion - Add a small userspace API improvement * tag 'fuse-fixes-5.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: fix pipe buffer lifetime for direct_io fuse: move FUSE_SUPER_MAGIC definition to magic.h fuse: fix fileattr op failure
2022-03-08Merge tag 'arm64-spectre-bhb-for-v5.17-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 spectre fixes from James Morse: "ARM64 Spectre-BHB mitigations: - Make EL1 vectors per-cpu - Add mitigation sequences to the EL1 and EL2 vectors on vulnerble CPUs - Implement ARCH_WORKAROUND_3 for KVM guests - Report Vulnerable when unprivileged eBPF is enabled" * tag 'arm64-spectre-bhb-for-v5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: proton-pack: Include unprivileged eBPF status in Spectre v2 mitigation reporting arm64: Use the clearbhb instruction in mitigations KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated arm64: Mitigate spectre style branch history side channels arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2 arm64: Add percpu vectors for EL1 arm64: entry: Add macro for reading symbol addresses from the trampoline arm64: entry: Add vectors that have the bhb mitigation sequences arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations arm64: entry: Allow the trampoline text to occupy multiple pages arm64: entry: Make the kpti trampoline's kpti sequence optional arm64: entry: Move trampoline macros out of ifdef'd section arm64: entry: Don't assume tramp_vectors is the start of the vectors arm64: entry: Allow tramp_alias to access symbols after the 4K boundary arm64: entry: Move the trampoline data page before the text page arm64: entry: Free up another register on kpti's tramp_exit path arm64: entry: Make the trampoline cleanup optional KVM: arm64: Allow indirect vectors to be used without SPECTRE_V3A arm64: spectre: Rename spectre_v4_patch_fw_mitigation_conduit arm64: entry.S: Add ventry overflow sanity checks
2022-03-08Revert "netfilter: conntrack: tag conntracks picked up in local out hook"Florian Westphal
This was a prerequisite for the ill-fated "netfilter: nat: force port remap to prevent shadowing well-known ports". As this has been reverted, this change can be backed out too. Signed-off-by: Florian Westphal <fw@strlen.de>
2022-03-08Merge tag 'amlogic-drivers-for-v5.18' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux into arm/drivers Amlogic Drivers updates for v5.18: - Add support for Amlogic S4 in meson-secure-pwrc power domain driver * tag 'amlogic-drivers-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux: soc: s4: Add support for power domains controller dt-bindings: power: add Amlogic s4 power domains bindings Link: https://lore.kernel.org/r/c7471989-d929-c744-c0c3-c8e86eaaa225@baylibre.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-03-08Merge tag 'at91-soc-5.18-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/drivers AT91 SoC #2 for 5.18: - SAMA5D29 variant to the SAMA5D2 family in SoC driver. * tag 'at91-soc-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: at91: add support in soc driver for new SAMA5D29 soc: add microchip polarfire soc system controller ARM: at91: Kconfig: select PM_OPP ARM: at91: PM: add cpu idle support for sama7g5 ARM: at91: ddr: fix typo to align with datasheet naming ARM: at91: ddr: align macro definitions ARM: at91: ddr: remove CONFIG_SOC_SAMA7 dependency Link: https://lore.kernel.org/r/20220304144216.23340-1-nicolas.ferre@microchip.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-03-08Merge tag 'at91-dt-5.18-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/dt AT91 DT #2 for 5.18: - Align one sam9x60ek regulator with reality at vdd_1v15 - Clean sama7g5 i2c nodes - Add EIC and NAND nodes to sama7g5 * tag 'at91-dt-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: dts: at91: sama7g5: Add NAND support ARM: dts: at91: sama7g5: add eic node ARM: dts: at91: sama7g5: Remove unused properties in i2c nodes ARM: dts: at91: sam9x60ek: modify vdd_1v5 regulator to vdd_1v15 Link: https://lore.kernel.org/r/20220304160036.27392-1-nicolas.ferre@microchip.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-03-08mm: vmalloc: introduce array allocation functionsPaolo Bonzini
Linux has dozens of occurrences of vmalloc(array_size()) and vzalloc(array_size()). Allow to simplify the code by providing vmalloc_array and vcalloc, as well as the underscored variants that let the caller specify the GFP flags. Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-03-08ASoC: dt-bindings: Document Microchip's PDMCCodrin Ciubotariu
Add DT bindings for the new Microchip PDMC embedded in sama7g5 SoCs. Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20220307122202.2251639-3-codrin.ciubotariu@microchip.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-03-08Merge branch 'for-next/perf-m1' into for-next/perfWill Deacon
Support for the CPU PMUs on the Apple M1. * for-next/perf-m1: drivers/perf: Add Apple icestorm/firestorm CPU PMU driver drivers/perf: arm_pmu: Handle 47 bit counters irqchip/apple-aic: Move PMU-specific registers to their own include file arm64: dts: apple: Add t8303 PMU nodes arm64: dts: apple: Add t8103 PMU interrupt affinities irqchip/apple-aic: Wire PMU interrupts irqchip/apple-aic: Parse FIQ affinities from device-tree dt-bindings: apple,aic: Add affinity description for per-cpu pseudo-interrupts dt-bindings: apple,aic: Add CPU PMU per-cpu pseudo-interrupts dt-bindings: arm-pmu: Document Apple PMU compatible strings
2022-03-08drivers/perf: arm_pmu: Handle 47 bit countersMarc Zyngier
The current ARM PMU framework can only deal with 32 or 64bit counters. Teach it about a 47bit flavour. Yes, this is odd. Reviewed-by: Hector Martin <marcan@marcan.st> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2022-03-08net: phy: exported the genphy_read_master_slave functionArun Ramadoss
genphy_read_master_slave function allows to configure the master/slave for gigabit phys only. In order to use this function irrespective of speed, moved the speed check to the genphy_read_status call. Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-03-08KEYS: remove support for asym_tpm keysEric Biggers
asym_tpm keys are tied to TPM v1.2, which uses outdated crypto and has been deprecated in favor of TPM v2.0 for over 7 years. A very quick look at this code also immediately found some memory safety bugs (https://lore.kernel.org/r/20220113235440.90439-2-ebiggers@kernel.org). Note that this code is reachable by unprivileged users. According to Jarkko (one of the keyrings subsystem maintainers), this code has no practical use cases, and he isn't willing to maintain it (https://lore.kernel.org/r/YfFZPbKkgYJGWu1Q@iki.fi). Therefore, let's remove it. Note that this feature didn't have any documentation or tests, so we don't need to worry about removing those. Cc: David Howells <dhowells@redhat.com> Cc: Denis Kenzior <denkenz@gmail.com> Cc: James Morris <jmorris@namei.org> Cc: Jarkko Sakkinen <jarkko@kernel.org> Cc: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-12 23:33:46 +0000