Another feedback. After rebuilding package bcmwl-kernel-source from source as a backport from Bionic 18.04 I have no error on building dkms for linux kernel 4.15, as expected.
Although I still have errors on broadcom-sta for the same reason. So I will rebuild from source as a backport from Bionic 18.04 and check whether it works. https://launchpad.net/ubuntu/+source/broadcom-sta broadcom-sta (6.30.223.271-8) unstable; urgency=low [ Roger Shimizu ] * debian/patches: - Added 20-linux414.patch, and 21-linux415.patch to support Linux kernel 4.15 (Thanks to Gerardo Esteban Malazdrewicz, closes: #885885) - Fix typo in 14-rdtscl.patch [ Eduard Bloch ] * Dropped extra CHANGELOG file (ancient documentation) * Standard version update to 4.1.3 (added lintian override to broadcom-sta-source since debhelper is used on purpose therein) -- Eduard Bloch <bl...@debian.org> Tue, 13 Feb 2018 21:45:18 +0100 So there is specific patches for linux kernel 4.15 and 4.14, available since mid February. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1760108 Title: Broadcom B43 Wireless Driver Not Functional after Update to Linux Kernel 4.15 Status in linux package in Ubuntu: Incomplete Status in linux source package in Bionic: Incomplete Bug description: I was upgrading my Ubuntu Xenial 16.04 from linux-hwe kernel 4.13.0-38 to linux-hwe-edge 4.15.0-13. After reboot my Broadcom network adapter (requiring package firmware-b43-installer) is not recognized by the new kernel 4.15.0-13. Running the lspci command lists the device as 'UNCLAIMED' in linux kernel 4.15. $ lspci [...] *-pci:4 description: PCI bridge product: Intel Corporation vendor: Intel Corporation physical id: 1c bus info: pci@0000:00:1c.0 version: f0 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:123 memory:ef500000-ef5fffff *-network UNCLAIMED description: Network controller product: BCM4331 802.11a/b/g/n vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:05:00.0 version: 02 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress cap_list configuration: latency=0 resources: memory:ef500000-ef503fff [...] $ The lspci -vv -pci:4 commands with the relevant devices are shown below. $ lspci -vv -pci:4 [...] 05:00.0 Network controller: Broadcom Corporation BCM4331 802.11a/b/g/n (rev 02) Subsystem: Apple Inc. AirPort Extreme 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- Interrupt: pin A routed to IRQ 11 Region 0: Memory at ef500000 (64-bit, non-prefetchable) [disabled] [size=16K] Capabilities: [40] 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=2 PME- Capabilities: [58] Vendor Specific Information: Len=78 <?> Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [d0] Express (v1) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag+ PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <64us ClockPM+ Surprise- LLActRep+ BwNot- ASPMOptComp- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt- ABWMgmt- 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- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [13c v1] Virtual Channel Caps: LPEVC=0 RefClk=100ns PATEntryBits=1 Arb: Fixed- WRR32- WRR64- WRR128- Ctrl: ArbSelect=Fixed Status: InProgress- VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans- Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff Status: NegoPending- InProgress- Capabilities: [160 v1] Device Serial Number c6-d6-51-ff-ff-e6-f4-f9 Capabilities: [16c v1] Power Budgeting <?> Kernel modules: bcma [...] $ The circumstances of this bug is well described on this webpage: https://bbs.archlinux.org/viewtopic.php?id=234122 Furthermore a patch has been provided upstream: [UPDATE]: This patch is already part of the used kernel version. Hence this bug is not related to this patch. https://patchwork.kernel.org/patch/10185397/ https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git/commit/?id=a9e6d44ddeccd3522670e641f1ed9b068e746ff7 But is still not implemented in any Ubuntu release. If this is not corrected on time, then the new Bionic 18.04 will fail to connect to Internet and the local network as well if it uses a Broadcom network adapter requiring the package firmware-b43-installer. --- ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: pascal 5050 F.... pulseaudio /dev/snd/controlC0: pascal 5050 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=440a3ee3-af65-48fc-9289-ffd7bcc60a9a InstallationDate: Installed on 2018-03-08 (21 days ago) InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) MachineType: Gigabyte Technology Co., Ltd. Z370 AORUS Gaming 7 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-13-generic.efi.signed root=UUID=aa8ba7d0-9620-4cee-815e-d2940c7daae7 ro quiet splash crashkernel=384M-2G:128M,2G-:256M vt.handoff=7 ProcVersionSignature: Ubuntu 4.15.0-13.14~16.04.1-generic 4.15.10 RelatedPackageVersions: linux-restricted-modules-4.15.0-13-generic N/A linux-backports-modules-4.15.0-13-generic N/A linux-firmware 1.157.17 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no Tags: xenial Uname: Linux 4.15.0-13-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm autopilot cdrom dip libvirtd lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 01/22/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F5m dmi.board.asset.tag: Default string dmi.board.name: Z370 AORUS Gaming 7 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF5m:bd01/22/2018:svnGigabyteTechnologyCo.,Ltd.:pnZ370AORUSGaming7:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnZ370AORUSGaming7:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: Z370 AORUS Gaming 7 dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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