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Bug#1035885: iwlwifi: api flags index 2 larger than supported by driver

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  Bug#1035885: iwlwifi: api flags index 2 larger than supported by driver "Al Ma" <alma0@ro.ru> - 2023-05-10 18:40 +0200
    Bug#1035885: iwlwifi: api flags index 2 larger than supported by driver "Al Ma" <alma0@ro.ru> - 2023-07-23 03:10 +0200

#79020 — Bug#1035885: iwlwifi: api flags index 2 larger than supported by driver

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Package: firmware-iwlwifi
Version: 20210315-3
In the journal log of a machine with the card
AX3000 Dual Band
PCE-AX3000
Wi-Fi 6 PCI-E Adapter
I see this:
Mai 10 16:47:33 AnonymizedMachineName kernel: RAPL PMU: API unit is 2^-32 Joules, 1 fixed counters, 655360 ms ovfl timer
Mai 10 16:47:33 AnonymizedMachineName kernel: RAPL PMU: hw unit of domain package 2^-14 Joules
Mai 10 16:47:33 AnonymizedMachineName kernel: Intel(R) Wireless WiFi driver for Linux
Mai 10 16:47:33 AnonymizedMachineName kernel: iwlwifi 0000:b3:00.0: enabling device (0100 -> 0102)
Mai 10 16:47:33 AnonymizedMachineName kernel: cryptd: max_cpu_qlen set to 1000
Mai 10 16:47:33 AnonymizedMachineName kernel: AVX2 version of gcm_enc/dec engaged.
Mai 10 16:47:33 AnonymizedMachineName kernel: AES CTR mode by8 optimization enabled
Mai 10 16:47:33 AnonymizedMachineName kernel: cx23885: cx23885 driver version 0.0.4 loaded
Mai 10 16:47:33 AnonymizedMachineName kernel: cx23885 0000:08:00.0: enabling device (0000 -> 0002)
Mai 10 16:47:33 AnonymizedMachineName kernel: cx23885: CORE cx23885[0]: subsystem: 0070:f038, board: Hauppauge WinTV-HVR5525 [card=52,autodetected]
Mai 10 16:47:33 AnonymizedMachineName kernel: iwlwifi 0000:b3:00.0: firmware: direct-loading firmware iwlwifi-cc-a0-59.ucode
Mai 10 16:47:33 AnonymizedMachineName kernel: iwlwifi 0000:b3:00.0: api flags index 2 larger than supported by driver
Mai 10 16:47:33 AnonymizedMachineName kernel: iwlwifi 0000:b3:00.0: TLV_FW_FSEQ_VERSION: FSEQ Version: 89.3.35.22
Mai 10 16:47:33 AnonymizedMachineName kernel: iwlwifi 0000:b3:00.0: loaded firmware version 59.601f3a66.0 cc-a0-59.ucode op_mode iwlmvm
Mai 10 16:47:33 AnonymizedMachineName kernel: iwlwifi 0000:b3:00.0: firmware: failed to load iwl-debug-yoyo.bin (-2)
Mai 10 16:47:33 AnonymizedMachineName kernel: firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware
What does “api flags index 2 larger than supported by driver” tell us?  Is this something I should be worried about?  If so, what to do?  I had WiFi-connectivity issues in the past, so I wonder whether this could be a source of these issues or at least contribute to them.

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#79695

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Dear iwlwifi developers,
I get a yellow warning in the journal: “iwlwifi 0000:b3:00.0: api flags index 2 larger than supported by driver”.
The card:
AX3000 Dual Band PCE-AX3000 Wi-Fi 6 PCI-E Adapter
The preceding journal entries:
Jul 22 22:35:22 AnonymizedMachineName kernel: iwlwifi 0000:b3:00.0: enabling device (0100 -> 0102) Jul 22 22:35:22 AnonymizedMachineName kernel: [drm] Initialized ast 0.1.0 20120228 for 0000:04:00.0 on minor 0 Jul 22 22:35:22 AnonymizedMachineName kernel: AVX2 version of gcm_enc/dec engaged. Jul 22 22:35:22 AnonymizedMachineName kernel: ipmi_si IPI0001:00: IPMI message handler: Found new BMC (man_id: 0x000a3f, prod_id: 0x0f83, dev_id: 0x20) Jul 22 22:35:22 AnonymizedMachineName kernel: AES CTR mode by8 optimization enabled Jul 22 22:35:22 AnonymizedMachineName kernel: asus_wmi: ASUS WMI generic driver loaded Jul 22 22:35:22 AnonymizedMachineName kernel: Console: switching to colour frame buffer device 128x48 Jul 22 22:35:22 AnonymizedMachineName kernel: ast 0000:04:00.0: [drm] fb0: astdrmfb frame buffer device Jul 22 22:35:22 AnonymizedMachineName kernel: iwlwifi 0000:b3:00.0: firmware: direct-loading firmware iwlwifi-cc-a0-72.ucode Jul 22 22:35:22 AnonymizedMachineName kernel: iwlwifi 0000:b3:00.0: api flags index 2 larger than supported by driver
The relevant lshw portion:
*-pci:2 description: PCI bridge product: Sky Lake-E PCI Express Root Port A vendor: Intel Corporation physical id: 0 bus info: pci@0000:b2:00.0 version: 07 width: 32 bits clock: 33MHz capabilities: pci msi pciexpress pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:35 memory:fbe00000-fbefffff *-network description: Wireless interface product: Wi-Fi 6 AX200 vendor: Intel Corporation physical id: 0 bus info: pci@0000:b3:00.0 logical name: wlp179s0 version: 1a serial: AnonymizedSerial width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=6.1.0-10-amd64 firmware=72.daa05125.0 cc-a0-72.ucode ip=192.168.1.49 latency=0 link=yes multicast=yes wireless=IEEE 802.11 resources: irq:94 memory:fbe00000-fbe03fff
The relevant lspci portion:
b3:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a) Subsystem: Intel Corporation Wi-Fi 6 AX200NGW Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 94 NUMA node: 0 IOMMU group: 1 Region 0: Memory at fbe00000 (64-bit, non-prefetchable) [size=16K] Capabilities: [c8] Power Management version 3 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000  Data: 0000 Capabilities: [40] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 unlimited ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0W DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ FLReset- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr+ TransPend- LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L1, Exit Latency L1 <8us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 5GT/s, Width x1 TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range B, TimeoutDis+ NROPrPrP- LTR+ 10BitTagComp- 10BitTagReq- OBFF Via WAKE#, ExtFmt- EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- TPHComp- ExtTPHComp- AtomicOpsCap: 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis+ LTR- 10BitTagReq- OBFF Disabled, AtomicOpsCtl: ReqEn- LnkCap2: Supported Link Speeds: 2.5-5GT/s, Crosslink- Retimer- 2Retimers- DRS- LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1- EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest- Retimer- 2Retimers- CrosslinkRes: unsupported Capabilities: [80] MSI-X: Enable+ Count=16 Masked- Vector table: BAR=0 offset=00002000 PBA: BAR=0 offset=00003000 Capabilities: [100 v1] Advanced Error Reporting UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+ CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+ AERCap: First Error Pointer: 00, ECRCGenCap- ECRCGenEn- ECRCChkCap- ECRCChkEn- MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap- HeaderLog: 00000000 00000000 00000000 00000000 Capabilities: [14c v1] Latency Tolerance Reporting Max snoop latency: 0ns Max no snoop latency: 0ns Capabilities: [154 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=30us PortTPowerOnTime=18us L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1- T_CommonMode=0us LTR1.2_Threshold=0ns L1SubCtl2: T_PwrOn=10us Kernel driver in use: iwlwifi Kernel modules: iwlwifi
Ben thinks in http://bugs.debian.org/1035885 that the firmware probably advertises some features that the driver doesn't know how to use.  Perhaps, it's time to upgrade the driver?  Or is the aforementioned yellow message a real warning for me as an admin or a user, and I should take some action?
Gratefully,
AlMa

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