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2025-03-25thermal/drivers/qcom-spmi-temp-alarm: Drop unused driver dataJohan Hovold
The platform device driver data has not been used since commit 7a4ca51b7040 ("thermal/drivers/qcom-spmi: Use devm_iio_channel_get") so drop the unnecessary assignment. Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250228082936.5694-1-johan+linaro@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal: rcar_gen3: Reuse logic to read fuses on Gen3 and Gen4Niklas Söderlund
The hardware calibration is fused on some, but not all, Gen3 and Gen4 boards. The calibrations values are the same on both generations but located at different register offsets. Instead of having duplicated logic to read the and store the values create structure to hold the register parameters and have a common function do the reading. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20250305174631.4119374-3-niklas.soderlund+renesas@ragnatech.se Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal: rcar_gen3: Use lowercase hex constantsNiklas Söderlund
The style of the driver is to use lowercase hex constants, correct the few outlines. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20250305174631.4119374-2-niklas.soderlund+renesas@ragnatech.se Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25dt-bindings: thermal: Correct indentation and style in DTS exampleKrzysztof Kozlowski
DTS example in the bindings should be indented with 2- or 4-spaces and aligned with opening '- |', so correct any differences like 3-spaces or mixtures 2- and 4-spaces in one binding. No functional changes here, but saves some comments during reviews of new patches built on existing code. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250107131027.246608-1-krzysztof.kozlowski@linaro.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal/drivers/brcmstb_thermal: Add support for BCM74110Florian Fainelli
BCM74110 uses a different process node compared to previous chips that requires a different equation, account for that. Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/r/20250116193842.758788-3-florian.fainelli@broadcom.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25dt-bindings: thermal: Update for BCM74110Florian Fainelli
Update the binding with the BCM74110 compatible string which denotes the first device we need to support in a different process node requiring an updated thermal equation. Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250116193842.758788-2-florian.fainelli@broadcom.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal/drivers/mediatek/lvts: Only update IRQ enable for valid sensorsNícolas F. R. A. Prado
Only sensors that are valid need to have their interrupts enable status updated based on their thresholds. Use the lvts_for_each_valid_sensor() helper in lvts_update_irq_mask() to ignore invalid sensors. Currently, since the invalid sensors will always contain zeroed out thresholds (from kzalloc), they will always get their interrupts disabled on this loop. So this commit doesn't change the resulting interrupts configuration, but it slightly optimizes the loop by skipping the invalid sensors, avoids potential future surprises if at some point memory is no longer allocated for invalid sensors, as well as makes the code more obvious. Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://lore.kernel.org/r/20250113-mt8192-lvts-filtered-suspend-fix-v2-5-07a25200c7c6@collabora.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal/drivers/mediatek/lvts: Start sensor interrupts disabledNícolas F. R. A. Prado
Interrupts are enabled per sensor in lvts_update_irq_mask() as needed, there's no point in enabling all of them during initialization. Change the MONINT register initial value so all sensor interrupts start disabled. Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://lore.kernel.org/r/20250113-mt8192-lvts-filtered-suspend-fix-v2-4-07a25200c7c6@collabora.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal/drivers/mediatek/lvts: Disable low offset IRQ for minimum thresholdNícolas F. R. A. Prado
In order to get working interrupts, a low offset value needs to be configured. The minimum value for it is 20 Celsius, which is what is configured when there's no lower thermal trip (ie the thermal core passes -INT_MAX as low trip temperature). However, when the temperature gets that low and fluctuates around that value it causes an interrupt storm. Prevent that interrupt storm by not enabling the low offset interrupt if the low threshold is the minimum one. Cc: stable@vger.kernel.org Fixes: 77354eaef821 ("thermal/drivers/mediatek/lvts_thermal: Don't leave threshold zeroed") Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://lore.kernel.org/r/20250113-mt8192-lvts-filtered-suspend-fix-v2-3-07a25200c7c6@collabora.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal/drivers/mediatek/lvts: Disable Stage 3 thermal thresholdNícolas F. R. A. Prado
The Stage 3 thermal threshold is currently configured during the controller initialization to 105 Celsius. From the kernel perspective, this configuration is harmful because: * The stage 3 interrupt that gets triggered when the threshold is crossed is not handled in any way by the IRQ handler, it just gets cleared. Besides, the temperature used for stage 3 comes from the sensors, and the critical thermal trip points described in the Devicetree will already cause a shutdown when crossed (at a lower temperature, of 100 Celsius, for all SoCs currently using this driver). * The only effect of crossing the stage 3 threshold that has been observed is that it causes the machine to no longer be able to enter suspend. Even if that was a result of a momentary glitch in the temperature reading of a sensor (as has been observed on the MT8192-based Chromebooks). For those reasons, disable the Stage 3 thermal threshold configuration. Cc: stable@vger.kernel.org Reported-by: Hsin-Te Yuan <yuanhsinte@chromium.org> Closes: https://lore.kernel.org/all/20241108-lvts-v1-1-eee339c6ca20@chromium.org/ Fixes: f5f633b18234 ("thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver") Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://lore.kernel.org/r/20250113-mt8192-lvts-filtered-suspend-fix-v2-2-07a25200c7c6@collabora.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal/drivers/mediatek/lvts: Disable monitor mode during suspendNícolas F. R. A. Prado
When configured in filtered mode, the LVTS thermal controller will monitor the temperature from the sensors and trigger an interrupt once a thermal threshold is crossed. Currently this is true even during suspend and resume. The problem with that is that when enabling the internal clock of the LVTS controller in lvts_ctrl_set_enable() during resume, the temperature reading can glitch and appear much higher than the real one, resulting in a spurious interrupt getting generated. Disable the temperature monitoring and give some time for the signals to stabilize during suspend in order to prevent such spurious interrupts. Cc: stable@vger.kernel.org Reported-by: Hsin-Te Yuan <yuanhsinte@chromium.org> Closes: https://lore.kernel.org/all/20241108-lvts-v1-1-eee339c6ca20@chromium.org/ Fixes: 8137bb90600d ("thermal/drivers/mediatek/lvts_thermal: Add suspend and resume") Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://lore.kernel.org/r/20250113-mt8192-lvts-filtered-suspend-fix-v2-1-07a25200c7c6@collabora.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal: core: Remove duplicate struct declarationxueqin Luo
The struct thermal_zone_device is already declared on line 32, so the duplicate declaration has been removed. Fixes: b1ae92dcfa8e ("thermal: core: Make struct thermal_zone_device definition internal") Signed-off-by: xueqin Luo <luoxueqin@kylinos.cn> Link: https://lore.kernel.org/r/20250206081436.51785-1-luoxueqin@kylinos.cn Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal/drivers/rockchip: Add missing rk3328 mapping entryTrevor Woerner
The mapping table for the rk3328 is missing the entry for -25C which is found in the TRM section 9.5.2 "Temperature-to-code mapping". NOTE: the kernel uses the tsadc_q_sel=1'b1 mode which is defined as: 4096-<code in table>. Whereas the table in the TRM gives the code "3774" for -25C, the kernel uses 4096-3774=322. [Dragan Simic] : "After going through the RK3308 and RK3328 TRMs, as well as through the downstream kernel code, it seems we may have some troubles at our hands. Let me explain, please. To sum it up, part 1 of the RK3308 TRM v1.1 says on page 538 that the equation for the output when tsadc_q_sel equals 1 is (4096 - tsadc_q), while part 1 of the RK3328 TRM v1.2 says that the output equation is (1024 - tsadc_q) in that case. The downstream kernel code, however, treats the RK3308 and RK3328 tables and their values as being the same. It even mentions 1024 as the "offset" value in a comment block for the rk_tsadcv3_control() function, just like the upstream code does, which is obviously wrong "offset" value when correlated with the table on page 544 of part 1 of the RK3308 TRM v1.1. With all this in mind, it's obvious that more work is needed to make it clear where's the actual mistake (it could be that the TRM is wrong), which I'll volunteer for as part of the SoC binning project. In the meantime, this patch looks fine as-is to me, by offering what's a clear improvement to the current state of the upstream code" Link: https://opensource.rock-chips.com/images/9/97/Rockchip_RK3328TRM_V1.1-Part1-20170321.pdf Cc: stable@vger.kernel.org Fixes: eda519d5f73e ("thermal: rockchip: Support the RK3328 SOC in thermal driver") Signed-off-by: Trevor Woerner <twoerner@gmail.com> Reviewed-by: Dragan Simic <dsimic@manjaro.org> Link: https://lore.kernel.org/r/20250207175048.35959-1-twoerner@gmail.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal/drivers/tsens: Add TSENS enable and calibration support for V2Praveenkumar I
SoCs without RPM need to enable sensors and calibrate them from the kernel. The IPQ5332 and IPQ5424 use the tsens v2.3.3 IP and do not have RPM. Therefore, add a new calibration function for V2, as the tsens.c calib function only supports V1. Also add new feature_config, ops and data for IPQ5332, IPQ5424. Although the TSENS IP supports 16 sensors, not all are used. The hw_id is used to enable the relevant sensors. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Praveenkumar I <quic_ipkumar@quicinc.com> Signed-off-by: Manikanta Mylavarapu <quic_mmanikan@quicinc.com> Link: https://lore.kernel.org/r/20250210120436.821684-3-quic_mmanikan@quicinc.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25dt-bindings: thermal: tsens: Add ipq5332, ipq5424 compatiblePraveenkumar I
The IPQ5332 and IPQ5424 use TSENS v2.3.3 IP with combined interrupt. RPM is not available in these SoCs, hence adding new compatible to have the sensor enablement and calibration function. Also add nvmem-cell-names. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Praveenkumar I <quic_ipkumar@quicinc.com> Signed-off-by: Manikanta Mylavarapu <quic_mmanikan@quicinc.com> Link: https://lore.kernel.org/r/20250210120436.821684-2-quic_mmanikan@quicinc.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal/drivers/qoriq: Power down TMU on system suspendAlice Guo
Enable power-down of TMU (Thermal Management Unit) for TMU version 2 during system suspend to save power. Save approximately 4.3mW on VDD_ANA_1P8 on i.MX93 platforms. Signed-off-by: Alice Guo <alice.guo@nxp.com> Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20241209164859.3758906-2-Frank.Li@nxp.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25thermal/drivers/qoriq: Use dev_err_probe() simplify the codeFrank Li
Use dev_err_probe() and devm_clk_get_optional_enabled() to simplify the code. Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20241209164859.3758906-1-Frank.Li@nxp.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-03-25Merge branch 'for-next/el2-enable-feat-pmuv3p9' into for-next/coreCatalin Marinas
* for-next/el2-enable-feat-pmuv3p9: : Enable EL2 requirements for FEAT_PMUv3p9 arm64/boot: Enable EL2 requirements for FEAT_PMUv3p9
2025-03-25Merge branch 'for-next/smt-control' into for-next/coreCatalin Marinas
* for-next/smt-control: : Support SMT control on arm64 arm64: Kconfig: Enable HOTPLUG_SMT arm64: topology: Support SMT control on ACPI based system arch_topology: Support SMT control for OF based system cpu/SMT: Provide a default topology_is_primary_thread()
2025-03-25Merge branches 'for-next/amuv1-avg-freq', 'for-next/pkey_unrestricted', ↵Catalin Marinas
'for-next/sysreg', 'for-next/misc', 'for-next/pgtable-cleanups', 'for-next/kselftest', 'for-next/uaccess-mops', 'for-next/pie-poe-cleanup', 'for-next/cputype-kryo', 'for-next/cca-dma-address', 'for-next/drop-pxd_table_bit' and 'for-next/spectre-bhb-assume-vulnerable', remote-tracking branch 'arm64/for-next/perf' into for-next/core * arm64/for-next/perf: perf/arm_cspmu: Fix missing io.h include perf/arm_cspmu: Add PMEVFILT2R support perf/arm_cspmu: Generalise event filtering perf/arm_cspmu: Move register definitons to header drivers/perf: apple_m1: Support host/guest event filtering drivers/perf: apple_m1: Refactor event select/filter configuration perf/dwc_pcie: fix duplicate pci_dev devices perf/dwc_pcie: fix some unreleased resources perf/arm-cmn: Minor event type housekeeping perf: arm_pmu: Move PMUv3-specific data perf: apple_m1: Don't disable counter in m1_pmu_enable_event() perf: arm_v7_pmu: Don't disable counter in (armv7|krait_|scorpion_)pmu_enable_event() perf: arm_v7_pmu: Drop obvious comments for enabling/disabling counters and interrupts perf: arm_pmuv3: Don't disable counter in armv8pmu_enable_event() perf: arm_pmu: Don't disable counter in armpmu_add() perf: arm_pmuv3: Call kvm_vcpu_pmu_resync_el0() before enabling counters perf: arm_pmuv3: Add support for ARM Rainier PMU * for-next/amuv1-avg-freq: : Add support for AArch64 AMUv1-based average freq arm64: Utilize for_each_cpu_wrap for reference lookup arm64: Update AMU-based freq scale factor on entering idle arm64: Provide an AMU-based version of arch_freq_get_on_cpu cpufreq: Introduce an optional cpuinfo_avg_freq sysfs entry cpufreq: Allow arch_freq_get_on_cpu to return an error arch_topology: init capacity_freq_ref to 0 * for-next/pkey_unrestricted: : mm/pkey: Add PKEY_UNRESTRICTED macro selftest/powerpc/mm/pkey: fix build-break introduced by commit 00894c3fc917 selftests/powerpc: Use PKEY_UNRESTRICTED macro selftests/mm: Use PKEY_UNRESTRICTED macro mm/pkey: Add PKEY_UNRESTRICTED macro * for-next/sysreg: : arm64 sysreg updates arm64/sysreg: Enforce whole word match for open/close tokens arm64/sysreg: Fix unbalanced closing block arm64/sysreg: Add register fields for HFGWTR2_EL2 arm64/sysreg: Add register fields for HFGRTR2_EL2 arm64/sysreg: Add register fields for HFGITR2_EL2 arm64/sysreg: Add register fields for HDFGWTR2_EL2 arm64/sysreg: Add register fields for HDFGRTR2_EL2 arm64/sysreg: Update register fields for ID_AA64MMFR0_EL1 * for-next/misc: : Miscellaneous arm64 patches arm64: mm: Don't use %pK through printk arm64/fpsimd: Remove unused declaration fpsimd_kvm_prepare() * for-next/pgtable-cleanups: : arm64 pgtable accessors cleanup arm64/mm: Define PTDESC_ORDER arm64/kernel: Always use level 2 or higher for early mappings arm64/hugetlb: Consistently use pud_sect_supported() arm64/mm: Convert __pte_to_phys() and __phys_to_pte_val() as functions * for-next/kselftest: : arm64 kselftest updates kselftest/arm64: mte: Skip the hugetlb tests if MTE not supported on such mappings kselftest/arm64: mte: Use the correct naming for tag check modes in check_hugetlb_options.c * for-next/uaccess-mops: : Implement the uaccess memory copy/set using MOPS instructions arm64: lib: Use MOPS for usercopy routines arm64: mm: Handle PAN faults on uaccess CPY* instructions arm64: extable: Add fixup handling for uaccess CPY* instructions * for-next/pie-poe-cleanup: : PIE/POE helpers cleanup arm64/sysreg: Move POR_EL0_INIT to asm/por.h arm64/sysreg: Rename POE_RXW to POE_RWX arm64/sysreg: Improve PIR/POR helpers * for-next/cputype-kryo: : Add cputype info for some Qualcomm Kryo cores arm64: cputype: Add comments about Qualcomm Kryo 5XX and 6XX cores arm64: cputype: Add QCOM_CPU_PART_KRYO_3XX_GOLD * for-next/cca-dma-address: : Fix DMA address for devices used in realms with Arm CCA arm64: realm: Use aliased addresses for device DMA to shared buffers dma: Introduce generic dma_addr_*crypted helpers dma: Fix encryption bit clearing for dma_to_phys * for-next/drop-pxd_table_bit: : Drop the arm64 PXD_TABLE_BIT (clean-up in preparation for 128-bit PTEs) arm64/mm: Drop PXD_TABLE_BIT arm64/mm: Check pmd_table() in pmd_trans_huge() arm64/mm: Check PUD_TYPE_TABLE in pud_bad() arm64/mm: Check PXD_TYPE_TABLE in [p4d|pgd]_bad() arm64/mm: Clear PXX_TYPE_MASK and set PXD_TYPE_SECT in [pmd|pud]_mkhuge() arm64/mm: Clear PXX_TYPE_MASK in mk_[pmd|pud]_sect_prot() arm64/ptdump: Test PMD_TYPE_MASK for block mapping KVM: arm64: ptdump: Test PMD_TYPE_MASK for block mapping * for-next/spectre-bhb-assume-vulnerable: : Rework Spectre BHB mitigations to not assume "safe" arm64: errata: Add newer ARM cores to the spectre_bhb_loop_affected() lists arm64: cputype: Add MIDR_CORTEX_A76AE arm64: errata: Add KRYO 2XX/3XX/4XX silver cores to Spectre BHB safe list arm64: errata: Assume that unknown CPUs _are_ vulnerable to Spectre BHB arm64: errata: Add QCOM_KRYO_4XX_GOLD to the spectre_bhb_k24_list
2025-03-25arch: mips: defconfig: Drop obsolete CONFIG_NET_CLS_TCINDEXJohan Korsnes
This option was removed from the Kconfig in commit 8c710f75256b ("net/sched: Retire tcindex classifier") but it was not removed from the defconfigs. Fixes: 8c710f75256b ("net/sched: Retire tcindex classifier") Signed-off-by: Johan Korsnes <johan.korsnes@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2025-03-25net: Fix the devmem sock opts and msgs for pariscPranjal Shrivastava
The devmem socket options and socket control message definitions introduced in the TCP devmem series[1] incorrectly continued the socket definitions for arch/parisc. The UAPI change seems safe as there are currently no drivers that declare support for devmem TCP RX via PP_FLAG_ALLOW_UNREADABLE_NETMEM. Hence, fixing this UAPI should be safe. Fix the devmem socket options and socket control message definitions to reflect the series followed by arch/parisc. [1] https://lore.kernel.org/lkml/20240910171458.219195-10-almasrymina@google.com/ Fixes: 8f0b3cc9a4c10 ("tcp: RX path for devmem TCP") Signed-off-by: Pranjal Shrivastava <praan@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Reviewed-by: Mina Almasry <almasrymina@google.com> Link: https://patch.msgid.link/20250324074228.3139088-1-praan@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25Bluetooth: MGMT: Add LL Privacy SettingLuiz Augusto von Dentz
This adds LL Privacy (bit 22) to Read Controller Information so the likes of bluetoothd(1) can detect when the controller supports it or not. Fixes: e209e5ccc5ac ("Bluetooth: MGMT: Mark LL Privacy as stable") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-03-25Bluetooth: hci_event: Fix handling of HCI_EV_LE_DIRECT_ADV_REPORTLuiz Augusto von Dentz
Some controllers seems to generate HCI_EV_LE_DIRECT_ADV_REPORT even when scan_filter is not set to 0x02 or 0x03, which indicates that local privacy is enabled, causing them to be ignored thus breaking auto-connect logic: < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 Type: Passive (0x00) Interval: 60.000 msec (0x0060) Window: 30.000 msec (0x0030) Own address type: Public (0x00) Filter policy: Ignore not in accept list (0x01) ... > HCI Event: LE Meta Event (0x3e) plen 18 LE Direct Advertising Report (0x0b) Num reports: 1 Event type: Connectable directed - ADV_DIRECT_IND (0x01) Address type: Random (0x01) Address: XX:XX:XX:XX:XX:XX (Static) Direct address type: Random (0x01) Direct address: XX:XX:XX:XX:XX:XX (Non-Resolvable) RSSI: -54 dBm (0xca) So this attempts to mitigate the above problem by skipping checking of direct_addr if local privacy is not enabled. Link: https://github.com/bluez/bluez/issues/1138 Fixes: e209e5ccc5ac ("Bluetooth: MGMT: Mark LL Privacy as stable") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-03-25Bluetooth: btnxpuart: Fix kernel panic during FW releaseNeeraj Sanjay Kale
This fixes a kernel panic seen during release FW in a stress test scenario where WLAN and BT FW download occurs simultaneously, and due to a HW bug, chip sends out only 1 bootloader signatures. When driver receives the bootloader signature, it enters FW download mode, but since no consequtive bootloader signatures seen, FW file is not requested. After 60 seconds, when FW download times out, release_firmware causes a kernel panic. [ 2601.949184] Unable to handle kernel paging request at virtual address 0000312e6f006573 [ 2601.992076] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000111802000 [ 2601.992080] [0000312e6f006573] pgd=0000000000000000, p4d=0000000000000000 [ 2601.992087] Internal error: Oops: 0000000096000021 [#1] PREEMPT SMP [ 2601.992091] Modules linked in: algif_hash algif_skcipher af_alg btnxpuart(O) pciexxx(O) mlan(O) overlay fsl_jr_uio caam_jr caamkeyblob_desc caamhash_desc caamalg_desc crypto_engine authenc libdes crct10dif_ce polyval_ce snd_soc_fsl_easrc snd_soc_fsl_asoc_card imx8_media_dev(C) snd_soc_fsl_micfil polyval_generic snd_soc_fsl_xcvr snd_soc_fsl_sai snd_soc_imx_audmux snd_soc_fsl_asrc snd_soc_imx_card snd_soc_imx_hdmi snd_soc_fsl_aud2htx snd_soc_fsl_utils imx_pcm_dma dw_hdmi_cec flexcan can_dev [ 2602.001825] CPU: 2 PID: 20060 Comm: hciconfig Tainted: G C O 6.6.23-lts-next-06236-gb586a521770e #1 [ 2602.010182] Hardware name: NXP i.MX8MPlus EVK board (DT) [ 2602.010185] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 2602.010191] pc : _raw_spin_lock+0x34/0x68 [ 2602.010201] lr : free_fw_priv+0x20/0xfc [ 2602.020561] sp : ffff800089363b30 [ 2602.020563] x29: ffff800089363b30 x28: ffff0000d0eb5880 x27: 0000000000000000 [ 2602.020570] x26: 0000000000000000 x25: ffff0000d728b330 x24: 0000000000000000 [ 2602.020577] x23: ffff0000dc856f38 [ 2602.033797] x22: ffff800089363b70 x21: ffff0000dc856000 [ 2602.033802] x20: ff00312e6f006573 x19: ffff0000d0d9ea80 x18: 0000000000000000 [ 2602.033809] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaaad80dd480 [ 2602.083320] x14: 0000000000000000 x13: 00000000000001b9 x12: 0000000000000002 [ 2602.083326] x11: 0000000000000000 x10: 0000000000000a60 x9 : ffff800089363a30 [ 2602.083333] x8 : ffff0001793d75c0 x7 : ffff0000d6dbc400 x6 : 0000000000000000 [ 2602.083339] x5 : 00000000410fd030 x4 : 0000000000000000 x3 : 0000000000000001 [ 2602.083346] x2 : 0000000000000000 x1 : 0000000000000001 x0 : ff00312e6f006573 [ 2602.083354] Call trace: [ 2602.083356] _raw_spin_lock+0x34/0x68 [ 2602.083364] release_firmware+0x48/0x6c [ 2602.083370] nxp_setup+0x3c4/0x540 [btnxpuart] [ 2602.083383] hci_dev_open_sync+0xf0/0xa34 [ 2602.083391] hci_dev_open+0xd8/0x178 [ 2602.083399] hci_sock_ioctl+0x3b0/0x590 [ 2602.083405] sock_do_ioctl+0x60/0x118 [ 2602.083413] sock_ioctl+0x2f4/0x374 [ 2602.091430] __arm64_sys_ioctl+0xac/0xf0 [ 2602.091437] invoke_syscall+0x48/0x110 [ 2602.091445] el0_svc_common.constprop.0+0xc0/0xe0 [ 2602.091452] do_el0_svc+0x1c/0x28 [ 2602.091457] el0_svc+0x40/0xe4 [ 2602.091465] el0t_64_sync_handler+0x120/0x12c [ 2602.091470] el0t_64_sync+0x190/0x194 Fixes: e3c4891098c8 ("Bluetooth: btnxpuart: Handle FW Download Abort scenario") Fixes: 689ca16e5232 ("Bluetooth: NXP: Add protocol support for NXP Bluetooth chipsets") Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-03-25Bluetooth: btnxpuart: Handle bootloader error during cmd5 and cmd7Neeraj Sanjay Kale
This handles the scenario where the driver receives an error code after sending cmd5 or cmd7 in the bootloader signature during FW download. The bootloader error code is handled by the driver and FW offset is corrected accordingly, and the cmd5 or cmd7 is re-sent to the controller in case of CRC error. Fixes: 689ca16e5232 ("Bluetooth: NXP: Add protocol support for NXP Bluetooth chipsets") Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-03-25Bluetooth: btnxpuart: Add correct bootloader error codesNeeraj Sanjay Kale
This corrects the bootloader error codes for NXP chipsets. Since we have a common handling for all error codes, there is no backward compatibility issue. Added error handling for CRC error code in V3 bootloader signature. Fixes: 27489364299a ("Bluetooth: btnxpuart: Add handling for boot-signature timeout errors") Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-03-25io_uring: move min_events sanitisationPavel Begunkov
iopoll and normal waiting already duplicate min_completion truncation, so move them inside the corresponding routines. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/254adb289cc04638f25d746a7499260fa89a179e.1742829388.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-03-25io_uring: rename "min" arg in io_iopoll_check()Pavel Begunkov
Don't name arguments "min", it shadows the namesake function. min_events is also more consistent. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/f52ce9d88d3bca5732a218b0da14924aa6968909.1742829388.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-03-25io_uring: open code __io_post_aux_cqe()Pavel Begunkov
There is no reason to keep __io_post_aux_cqe() separately from io_post_aux_cqe(). Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/2c4c1f68d694deea25a212fc09bbb11f330cd82e.1742829388.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-03-25io_uring: defer iowq cqe overflow via task_workPavel Begunkov
Don't handle CQE overflows in io_req_complete_post() and defer it to flush_completions. It cuts some duplication, and I also want to limit the number of places directly overflowing completions. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/9046410ac27e18f2baa6f7cdb363ec921cbc3b79.1742829388.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-03-25io_uring: fix retry handling off iowqPavel Begunkov
io_req_complete_post() doesn't handle reissue and if called with a REQ_F_REISSUE request it might post extra unexpected completions. Fix it by pushing into flush_completion via task work. Fixes: d803d123948fe ("io_uring/rw: handle -EAGAIN retry at IO completion time") Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/badb3d7e462881e7edbfcc2be6301090b07dbe53.1742829388.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-03-25Merge tag 'timers-vdso-2025-03-23' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull VDSO infrastructure updates from Thomas Gleixner: - Consolidate the VDSO storage The VDSO data storage and data layout has been largely architecture specific for historical reasons. That increases the maintenance effort and causes inconsistencies over and over. There is no real technical reason for architecture specific layouts and implementations. The architecture specific details can easily be integrated into a generic layout, which also reduces the amount of duplicated code for managing the mappings. Convert all architectures over to a unified layout and common mapping infrastructure. This splits the VDSO data layout into subsystem specific blocks, timekeeping, random and architecture parts, which provides a better structure and allows to improve and update the functionalities without conflict and interaction. - Rework the timekeeping data storage The current implementation is designed for exposing system timekeeping accessors, which was good enough at the time when it was designed. PTP and Time Sensitive Networking (TSN) change that as there are requirements to expose independent PTP clocks, which are not related to system timekeeping. Replace the monolithic data storage by a structured layout, which allows to add support for independent PTP clocks on top while reusing both the data structures and the time accessor implementations. * tag 'timers-vdso-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits) sparc/vdso: Always reject undefined references during linking x86/vdso: Always reject undefined references during linking vdso: Rework struct vdso_time_data and introduce struct vdso_clock vdso: Move architecture related data before basetime data powerpc/vdso: Prepare introduction of struct vdso_clock arm64/vdso: Prepare introduction of struct vdso_clock x86/vdso: Prepare introduction of struct vdso_clock time/namespace: Prepare introduction of struct vdso_clock vdso/namespace: Rename timens_setup_vdso_data() to reflect new vdso_clock struct vdso/vsyscall: Prepare introduction of struct vdso_clock vdso/gettimeofday: Prepare helper functions for introduction of struct vdso_clock vdso/gettimeofday: Prepare do_coarse_timens() for introduction of struct vdso_clock vdso/gettimeofday: Prepare do_coarse() for introduction of struct vdso_clock vdso/gettimeofday: Prepare do_hres_timens() for introduction of struct vdso_clock vdso/gettimeofday: Prepare do_hres() for introduction of struct vdso_clock vdso/gettimeofday: Prepare introduction of struct vdso_clock vdso/helpers: Prepare introduction of struct vdso_clock vdso/datapage: Define vdso_clock to prepare for multiple PTP clocks vdso: Make vdso_time_data cacheline aligned arm64: Make asm/cache.h compatible with vDSO ...
2025-03-25Merge tag 'timers-cleanups-2025-03-23' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer cleanups from Thomas Gleixner: "A treewide hrtimer timer cleanup hrtimers are initialized with hrtimer_init() and a subsequent store to the callback pointer. This turned out to be suboptimal for the upcoming Rust integration and is obviously a silly implementation to begin with. This cleanup replaces the hrtimer_init(T); T->function = cb; sequence with hrtimer_setup(T, cb); The conversion was done with Coccinelle and a few manual fixups. Once the conversion has completely landed in mainline, hrtimer_init() will be removed and the hrtimer::function becomes a private member" * tag 'timers-cleanups-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (100 commits) wifi: rt2x00: Switch to use hrtimer_update_function() io_uring: Use helper function hrtimer_update_function() serial: xilinx_uartps: Use helper function hrtimer_update_function() ASoC: fsl: imx-pcm-fiq: Switch to use hrtimer_setup() RDMA: Switch to use hrtimer_setup() virtio: mem: Switch to use hrtimer_setup() drm/vmwgfx: Switch to use hrtimer_setup() drm/xe/oa: Switch to use hrtimer_setup() drm/vkms: Switch to use hrtimer_setup() drm/msm: Switch to use hrtimer_setup() drm/i915/request: Switch to use hrtimer_setup() drm/i915/uncore: Switch to use hrtimer_setup() drm/i915/pmu: Switch to use hrtimer_setup() drm/i915/perf: Switch to use hrtimer_setup() drm/i915/gvt: Switch to use hrtimer_setup() drm/i915/huc: Switch to use hrtimer_setup() drm/amdgpu: Switch to use hrtimer_setup() stm class: heartbeat: Switch to use hrtimer_setup() i2c: Switch to use hrtimer_setup() iio: Switch to use hrtimer_setup() ...
2025-03-25net: dsa: microchip: fix DCB apptrust configuration on KSZ88x3Oleksij Rempel
Remove KSZ88x3-specific priority and apptrust configuration logic that was based on incorrect register access assumptions. Also fix the register offset for KSZ8_REG_PORT_1_CTRL_0 to align with get_port_addr() logic. The KSZ88x3 switch family uses a different register layout compared to KSZ9477-compatible variants. Specifically, port control registers need offset adjustment through get_port_addr(), and do not match the datasheet values directly. Commit a1ea57710c9d ("net: dsa: microchip: dcb: add special handling for KSZ88X3 family") introduced quirks based on datasheet offsets, which do not work with the driver's internal addressing model. As a result, these quirks addressed the wrong ports and caused unstable behavior. This patch removes all KSZ88x3-specific DCB quirks and corrects the port control register offset, effectively restoring working and predictable apptrust configuration. Fixes: a1ea57710c9d ("net: dsa: microchip: dcb: add special handling for KSZ88X3 family") Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250321141044.2128973-1-o.rempel@pengutronix.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25stmmac: intel: interface switching support for RPL-P platformChoong Yong Liang
Based on the patch series [1], the enablement of interface switching for RPL-P will use the same handling as ADL-N. Link: https://patchwork.kernel.org/project/netdevbpf/cover/20250227121522.1802832-1-yong.liang.choong@linux.intel.com/ [1] Signed-off-by: Choong Yong Liang <yong.liang.choong@linux.intel.com> Link: https://patch.msgid.link/20250324062742.462771-1-yong.liang.choong@linux.intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25Merge branch 'stmmac-several-pci-related-improvements'Jakub Kicinski
Philipp Stanner says: ==================== stmmac: Several PCI-related improvements ==================== Link: https://patch.msgid.link/20250324092928.9482-2-phasta@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25stmmac: Replace deprecated PCI functionsPhilipp Stanner
The PCI functions - pcim_iomap_regions() and - pcim_iomap_table() have been deprecated. Replace them with their successor function, pcim_iomap_region(). Make variable declaration order at closeby places comply with reverse christmas tree order. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Tested-by: Henry Chen <chenx97@aosc.io> Signed-off-by: Philipp Stanner <phasta@kernel.org> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20250324092928.9482-6-phasta@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25stmmac: Remove pcim_* functions for driver detachPhilipp Stanner
Functions prefixed with "pcim_" are managed devres functions which perform automatic cleanup once the driver unloads. It is, thus, not necessary to call any cleanup functions in remove() callbacks. Remove the pcim_ cleanup function calls in the remove() callbacks. Signed-off-by: Philipp Stanner <phasta@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Yanteng Si <si.yanteng@linux.dev> Tested-by: Henry Chen <chenx97@aosc.io> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20250324092928.9482-5-phasta@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25stmmac: loongson: Remove surplus loopPhilipp Stanner
loongson_dwmac_probe() contains a loop which doesn't have an effect, because it tries to call pcim_iomap_regions() with the same parameters several times. The break statement at the loop's end furthermore ensures that the loop only runs once anyways. Remove the surplus loop. Signed-off-by: Philipp Stanner <phasta@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Yanteng Si <si.yanteng@linux.dev> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Tested-by: Henry Chen <chenx97@aosc.io> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20250324092928.9482-4-phasta@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25Merge branch 'tcp-dccp-remove-16-bytes-from-icsk'Jakub Kicinski
Eric Dumazet says: ==================== tcp/dccp: remove 16 bytes from icsk icsk->icsk_timeout and icsk->icsk_ack.timeout can be removed. They mirror existing fields in icsk->icsk_retransmit_timer and icsk->icsk_retransmit_timer. ==================== Link: https://patch.msgid.link/20250324203607.703850-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25tcp/dccp: remove icsk->icsk_ack.timeoutEric Dumazet
icsk->icsk_ack.timeout can be replaced by icsk->csk_delack_timer.expires This saves 8 bytes in TCP/DCCP sockets and helps for better cache locality. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250324203607.703850-3-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25tcp/dccp: remove icsk->icsk_timeoutEric Dumazet
icsk->icsk_timeout can be replaced by icsk->icsk_retransmit_timer.expires This saves 8 bytes in TCP/DCCP sockets and helps for better cache locality. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250324203607.703850-2-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25Merge tag 'timers-core-2025-03-23' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer core updates from Thomas Gleixner: - Fix a memory ordering issue in posix-timers Posix-timer lookup is lockless and reevaluates the timer validity under the timer lock, but the update which validates the timer is not protected by the timer lock. That allows the store to be reordered against the initialization stores, so that the lookup side can observe a partially initialized timer. That's mostly a theoretical problem, but incorrect nevertheless. - Fix a long standing inconsistency of the coarse time getters The coarse time getters read the base time of the current update cycle without reading the actual hardware clock. NTP frequency adjustment can set the base time backwards. The fine grained interfaces compensate this by reading the clock and applying the new conversion factor, but the coarse grained time getters use the base time directly. That allows the user to observe time going backwards. Cure it by always forwarding base time, when NTP changes the frequency with an immediate step. - Rework of posix-timer hashing The posix-timer hash is not scalable and due to the CRIU timer restore mechanism prone to massive contention on the global hash bucket lock. Replace the global hash lock with a fine grained per bucket locking scheme to address that. - Rework the proc/$PID/timers interface. /proc/$PID/timers is provided for CRIU to be able to restore a timer. The printout happens with sighand lock held and interrupts disabled. That's not required as this can be done with RCU protection as well. - Provide a sane mechanism for CRIU to restore a timer ID CRIU restores timers by creating and deleting them until the kernel internal per process ID counter reached the requested ID. That's horribly slow for sparse timer IDs. Provide a prctl() which allows CRIU to restore a timer with a given ID. When enabled the ID pointer is used as input pointer to read the requested ID from user space. When disabled, the normal allocation scheme (next ID) is active as before. This is backwards compatible for both kernel and user space. - Make hrtimer_update_function() less expensive. The sanity checks are valuable, but expensive for high frequency usage in io/uring. Make the debug checks conditional and enable them only when lockdep is enabled. - Small updates, cleanups and improvements * tag 'timers-core-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) selftests/timers: Improve skew_consistency by testing with other clockids timekeeping: Fix possible inconsistencies in _COARSE clockids posix-timers: Drop redundant memset() invocation selftests/timers/posix-timers: Add a test for exact allocation mode posix-timers: Provide a mechanism to allocate a given timer ID posix-timers: Dont iterate /proc/$PID/timers with sighand:: Siglock held posix-timers: Make per process list RCU safe posix-timers: Avoid false cacheline sharing posix-timers: Switch to jhash32() posix-timers: Improve hash table performance posix-timers: Make signal_struct:: Next_posix_timer_id an atomic_t posix-timers: Make lock_timer() use guard() posix-timers: Rework timer removal posix-timers: Simplify lock/unlock_timer() posix-timers: Use guards in a few places posix-timers: Remove SLAB_PANIC from kmem cache posix-timers: Remove a few paranoid warnings posix-timers: Cleanup includes posix-timers: Add cond_resched() to posix_timer_add() search loop posix-timers: Initialise timer before adding it to the hash table ...
2025-03-25Merge branch 'net-skip-taking-rtnl_lock-for-queue-get'Jakub Kicinski
Jakub Kicinski says: ==================== net: skip taking rtnl_lock for queue GET (prep) Skip taking rtnl_lock for queue GET ops on devices which opt into running all ops under the instance lock. In preparating for performing queue ops without rtnl lock clarify the protection of queue-related fields. v1: https://lore.kernel.org/20250312223507.805719-1-kuba@kernel.org ==================== Link: https://patch.msgid.link/20250324224537.248800-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: protect rxq->mp_params with the instance lockJakub Kicinski
Ensure that all accesses to mp_params are under the netdev instance lock. The only change we need is to move dev_memory_provider_uninstall() under the lock. Appropriately swap the asserts. Reviewed-by: Mina Almasry <almasrymina@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250324224537.248800-8-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: designate queue -> napi linking as "ops protected"Jakub Kicinski
netdev netlink is the only reader of netdev_{,rx_}queue->napi, and it already holds netdev->lock. Switch protection of the writes to netdev->lock to "ops protected". The expectation will be now that accessing queue->napi will require netdev->lock for "ops locked" drivers, and rtnl_lock for all other drivers. Current "ops locked" drivers don't require any changes. gve and netdevsim use _locked() helpers right next to netif_queue_set_napi() so they must be holding the instance lock. iavf doesn't call it. bnxt is a bit messy but all paths seem locked. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250324224537.248800-7-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: designate queue counts as "double ops protected" by instance lockJakub Kicinski
Drivers which opt into instance lock protection of ops should only call set_real_num_*_queues() under the instance lock. This means that queue counts are double protected (writes are under both rtnl_lock and instance lock, readers under either). Some readers may still be under the rtnl_lock, however, so for now we need double protection of writers. OTOH queue API paths are only under the protection of the instance lock, so we need to validate that the instance is actually locking ops, otherwise the input checks we do against queue count are racy. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250324224537.248800-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: explain "protection types" for the instance lockJakub Kicinski
Try to define some terminology for which fields are protected by which lock and how. Some fields are protected by both rtnl_lock and instance lock which is hard to talk about without having a "key phrase" to refer to a particular protection scheme. "ops protected" fields are defined later in the series, one by one. Add ASSERT_RTNL() to netdev_ops_assert_locked() for drivers not other instance protection of ops. Hopefully it's not too confusion that netdev_lock_ops() does not match the lock which netdev_ops_assert_locked() will assert, exactly. The noun "ops" is in a different place in the name, so I think it's acceptable... Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250324224537.248800-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: constify dev pointer in misc instance lock helpersJakub Kicinski
lockdep asserts and predicates can operate on const pointers. In the future this will let us add asserts in functions which operate on const pointers like dev_get_min_mp_channel_count(). Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250324224537.248800-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>