kernel/linux.git/Documentation, branch linux-6.0.y

ext4: journal_path mount options should follow links

2023-01-07T10:16:02+00:00

commit e3ea75ee651daf5e434afbfdb7dbf75e200ea1f6 upstream. Before the commit 461c3af045d3 ("ext4: Change handle_mount_opt() to use fs_parameter") ext4 mount option journal_path did follow links in the provided path. Bring this behavior back by allowing to pass pathwalk flags to fs_lookup_param(). Fixes: 461c3af045d3 ("ext4: Change handle_mount_opt() to use fs_parameter") Signed-off-by: Lukas Czerner Reviewed-by: Darrick J. Wong Link: https://lore.kernel.org/r/20221004135803.32283-1-lczerner@redhat.com Signed-off-by: Theodore Ts'o Cc: stable@kernel.org Signed-off-by: Greg Kroah-Hartman

iommu/amd: Fix ill-formed ivrs_ioapic, ivrs_hpet and ivrs_acpihid options

2023-01-07T10:15:58+00:00

commit 1198d2316dc4265a97d0e8445a22c7a6d17580a4 upstream. Currently, these options cause the following libkmod error: libkmod: ERROR ../libkmod/libkmod-config.c:489 kcmdline_parse_result: \ Ignoring bad option on kernel command line while parsing module \ name: 'ivrs_xxxx[XX:XX' Fix by introducing a new parameter format for these options and throw a warning for the deprecated format. Users are still allowed to omit the PCI Segment if zero. Adding a Link: to the reason why we're modding the syntax parsing in the driver and not in libkmod. Fixes: ca3bf5d47cec ("iommu/amd: Introduces ivrs_acpihid kernel parameter") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/linux-modules/20200310082308.14318-2-lucas.demarchi@intel.com/ Reported-by: Kim Phillips Co-developed-by: Suravee Suthikulpanit Signed-off-by: Suravee Suthikulpanit Signed-off-by: Kim Phillips Link: https://lore.kernel.org/r/20220919155638.391481-2-kim.phillips@amd.com Signed-off-by: Joerg Roedel Signed-off-by: Greg Kroah-Hartman

kprobes: kretprobe events missing on 2-core KVM guest

2023-01-04T10:26:27+00:00

[ Upstream commit 3b7ddab8a19aefc768f345fd3782af35b4a68d9b ] Default value of maxactive is set as num_possible_cpus() for nonpreemptable systems. For a 2-core system, only 2 kretprobe instances would be allocated in default, then these 2 instances for execve kretprobe are very likely to be used up with a pipelined command. Here's the testcase: a shell script was added to crontab, and the content of the script is: #!/bin/sh do_something_magic `tr -dc a-z < /dev/urandom | head -c 10` cron will trigger a series of program executions (4 times every hour). Then events loss would be noticed normally after 3-4 hours of testings. The issue is caused by a burst of series of execve requests. The best number of kretprobe instances could be different case by case, and should be user's duty to determine, but num_possible_cpus() as the default value is inadequate especially for systems with small number of cpus. This patch enables the logic for preemption as default, thus increases the minimum of maxactive to 10 for nonpreemptable systems. Link: https://lore.kernel.org/all/20221110081502.492289-1-wuqiang.matt@bytedance.com/ Signed-off-by: wuqiang Reviewed-by: Solar Designer Acked-by: Masami Hiramatsu (Google) Signed-off-by: Masami Hiramatsu (Google) Signed-off-by: Sasha Levin

dt-bindings: input: iqs7222: Add support for IQS7222A v1.13+

2022-12-31T12:26:50+00:00

[ Upstream commit 97384a65c5e304ccab0477751546f5519d9371c3 ] IQS7222A revisions 1.13 and later widen the gesture multiplier from x4 ms to x16 ms; update the binding accordingly. As part of this change, refresh the corresponding properties in the example as well. Fixes: 44dc42d254bf ("dt-bindings: input: Add bindings for Azoteq IQS7222A/B/C") Signed-off-by: Jeff LaBundy Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/Y1SRaVGwj30z/g6r@nixie71 Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin

dt-bindings: input: iqs7222: Correct minimum slider size

2022-12-31T12:26:50+00:00

[ Upstream commit 99d03b54ef8506771c15deb714396665592f6adf ] The minimum slider size enforced by the driver is 1 or 16 for the IQS7222C or IQS7222A, respectively. Fixes: 44dc42d254bf ("dt-bindings: input: Add bindings for Azoteq IQS7222A/B/C") Signed-off-by: Jeff LaBundy Acked-by: Rob Herring Link: https://lore.kernel.org/r/Y1SRU37t74wRvZv3@nixie71 Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin

dt-bindings: input: iqs7222: Reduce 'linux,code' to optional

2022-12-31T12:26:50+00:00

[ Upstream commit ccad486525c49df2fe2e7090990522547dfd2785 ] Following a recent refactor of the driver to properly drop unused device nodes, the 'linux,code' property is now optional. This can be useful for applications that define GPIO-mapped events that do not correspond to any keycode. Fixes: 44dc42d254bf ("dt-bindings: input: Add bindings for Azoteq IQS7222A/B/C") Signed-off-by: Jeff LaBundy Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/Y1SROIrrC1LwX0Sd@nixie71 Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin

dt-bindings: mfd: qcom,spmi-pmic: Drop PWM reg dependency

2022-12-31T12:26:36+00:00

[ Upstream commit 763ab98687404d924b6612f7c9c8430333d31229 ] The PWM node is not a separate device and is expected to be part of parent SPMI PMIC node, thus it obtains the address space from the parent. One IO address in "reg" is also not correct description because LPG block maps to several regions. Fixes: 3f5117be9584 ("dt-bindings: mfd: convert to yaml Qualcomm SPMI PMIC") Suggested-by: Krzysztof Kozlowski Reviewed-by: Krzysztof Kozlowski Signed-off-by: Bryan O'Donoghue Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20220928000517.228382-2-bryan.odonoghue@linaro.org Signed-off-by: Sasha Levin

dt-bindings: visconti-pcie: Fix interrupts array max constraints

2022-12-31T12:26:20+00:00

[ Upstream commit 4cf4b9b70ab2785461190c08a3542d2d74c28b46 ] In accordance with the way the device DT-node is actually defined in arch/arm64/boot/dts/toshiba/tmpv7708.dtsi and the way the device is probed by the DW PCIe driver there are two IRQs it actually has. It's MSI IRQ the DT-bindings lack. Let's extend the interrupts property constraints then and fix the schema example so one would be acceptable by the actual device DT-bindings. Link: https://lore.kernel.org/r/20221113191301.5526-3-Sergey.Semin@baikalelectronics.ru Fixes: 17c1b16340f0 ("dt-bindings: pci: Add DT binding for Toshiba Visconti PCIe controller") Signed-off-by: Serge Semin Signed-off-by: Lorenzo Pieralisi Acked-by: Rob Herring Acked-by: Nobuhiro Iwamatsu Signed-off-by: Sasha Levin

dt-bindings: imx6q-pcie: Fix clock names for imx6sx and imx8mq

2022-12-31T12:26:20+00:00

[ Upstream commit b8a83e600bdde93e7da41ea3204b2b3832a3c99b ] Originally as it was defined the legacy bindings the pcie_inbound_axi and pcie_aux clock names were supposed to be used in the fsl,imx6sx-pcie and fsl,imx8mq-pcie devices respectively. But the bindings conversion has been incorrectly so now the fourth clock name is defined as "pcie_inbound_axi for imx6sx-pcie, pcie_aux for imx8mq-pcie", which is completely wrong. Let's fix that by conditionally apply the clock-names constraints based on the compatible string content. Link: https://lore.kernel.org/r/20221113191301.5526-2-Sergey.Semin@baikalelectronics.ru Fixes: 751ca492f131 ("dt-bindings: PCI: imx6: convert the imx pcie controller to dtschema") Signed-off-by: Serge Semin Signed-off-by: Lorenzo Pieralisi Reviewed-by: Rob Herring Acked-by: Alexander Stein Signed-off-by: Sasha Levin

dt-bindings: clock: Add resets for LPASS audio clock controller for SC7280

2022-12-31T12:26:07+00:00

[ Upstream commit be9439df235352a41605bf2cc8ba10aa0fc40d29 ] Add support for LPASS audio clock gating for RX/TX/SWA core bus clocks for SC7280. Update reg property min/max items in YAML schema. Fixes: 4185b27b3bef ("dt-bindings: clock: Add YAML schemas for LPASS clocks on SC7280") Acked-by: Rob Herring Signed-off-by: Taniya Das Reviewed-by: Stephen Boyd Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/1662005846-4838-4-git-send-email-quic_c_skakit@quicinc.com Stable-dep-of: d470be3c4f30 ("clk: qcom: lpass-sc7280: Fix pm_runtime usage") Signed-off-by: Sasha Levin