bcmwl-kernel-source 6.30.223.271 stopped working with latest kernel 5.8.0-34

[Mike]

Hello,

This is my first time reporting a bug so please bear with me in case something is missing :)

After upgrading my Linux Kernel to version 5.8.0-34-generic my WiFi simply stopped working. So then I tried to understand what happened with the module and saw some errors related to the bcmwl-kernel-source (6.30.223.271), tried to remove the bcmwl-kernel-source package and install it again but that still didn't work. Below I leave a log from the crash:

- - - - - Log Starts Here - - - - -
ProblemType: Package
DKMSBuildLog:
 DKMS make.log for bcmwl-6.30.223.271+bdcom for kernel 5.8.0-34-generic (x86_64)
 qua 06 jan 2021 23:43:32 WET
 make: Entering directory '/usr/src/linux-headers-5.8.0-34-generic'
 CFG80211 API is prefered for this kernel version
 Using CFG80211 API
   AR /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/built-in.a
   CC [M] /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.o
   CC [M] /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.o
   CC [M] /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_iw.o
   CC [M] /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.o
 In file included from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.c:40:
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.c: In function ‘wl_set_auth_type’:
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.h:52:5: warning: this statement may fall through [-Wimplicit-fallthrough=]
    52 | if (wl_dbg_level & WL_DBG_DBG) { \
       | ^
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.c:816:3: note: in expansion of macro ‘WL_DBG’
   816 | WL_DBG(("network eap\n"));
       | ^~~~~~
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.c:817:2: note: here
   817 | default:
       | ^~~~~~~
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c: In function ‘osl_reg_map’:
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:949:10: error: implicit declaration of function ‘ioremap_nocache’; did you mean ‘ioremap_cache’? [-Werror=implicit-function-declaration]
   949 | return (ioremap_nocache((unsigned long)pa, (unsigned long)size));
       | ^~~~~~~~~~~~~~~
       | ioremap_cache
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:949:10: warning: returning ‘int’ from a function with return type ‘void *’ makes pointer from integer without a cast [-Wint-conversion]
   949 | return (ioremap_nocache((unsigned long)pa, (unsigned long)size));
       | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c: In function ‘wl_attach’:
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:593:20: error: implicit declaration of function ‘ioremap_nocache’; did you mean ‘ioremap_cache’? [-Werror=implicit-function-declaration]
   593 | if ((wl->regsva = ioremap_nocache(dev->base_addr, PCI_BAR0_WINSZ)) == NULL) {
       | ^~~~~~~~~~~~~~~
       | ioremap_cache
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:593:18: warning: assignment to ‘void *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
   593 | if ((wl->regsva = ioremap_nocache(dev->base_addr, PCI_BAR0_WINSZ)) == NULL) {
       | ^
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c: In function ‘wl_pci_probe’:
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:780:2: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
   780 | if ((val & 0x0000ff00) != 0)
       | ^~
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:782:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
   782 | bar1_size = pci_resource_len(pdev, 2);
       | ^~~~~~~~~
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:783:15: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   783 | bar1_addr = (uchar *)ioremap_nocache(pci_resource_start(pdev, 2),
       | ^
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c: In function ‘wl_reg_proc_entry’:
 /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:3376:58: error: passing argument 4 of ‘proc_create_data’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  3376 | if ((wl->proc_entry = proc_create_data(tmp, 0644, NULL, &wl_fops, wl)) == NULL) {
       | ^~~~~~~~
       | |
       | const struct file_operations *
 In file included from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:38:
 ./include/linux/proc_fs.h:102:31: note: expected ‘const struct proc_ops *’ but argument is of type ‘const struct file_operations *’
   102 | extern struct proc_dir_entry *proc_create_data(const char *, umode_t,
       | ^~~~~~~~~~~~~~~~
 cc1: some warnings being treated as errors
 make[1]: *** [scripts/Makefile.build:288: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.o] Error 1
 make[1]: *** Waiting for unfinished jobs....
 cc1: some warnings being treated as errors
 make[1]: *** [scripts/Makefile.build:288: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.o] Error 1
 make: *** [Makefile:1780: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build] Error 2
 make: Leaving directory '/usr/src/linux-headers-5.8.0-34-generic'
DKMSKernelVersion: 5.8.0-34-generic
Date: Wed Jan 6 23:43:36 2021
DuplicateSignature: dkms:bcmwl-kernel-source:6.30.223.271+bdcom-0ubuntu5:/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:949:10: error: implicit declaration of function ‘ioremap_nocache’; did you mean ‘ioremap_cache’? [-Werror=implicit-function-declaration]
Package: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu5
PackageVersion: 6.30.223.271+bdcom-0ubuntu5
SourcePackage: bcmwl
Title: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu5: bcmwl kernel module failed to build
- - - - - - - Log Ends Here - - - - - - -

My Ubuntu version is:
Description: Ubuntu 20.04.1 LTS
Release: 20.04

Thank you

[Mike (blackf8x)]

Sorry for opening the bug, realized that there was already an on-going bug:

This is a duplicate from: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1907445