Adding some context, this will help index this bug report:
$ cat /var/lib/dkms/broadcom-sta/6.30.223.271/build/make.log
DKMS make.log for broadcom-sta-6.30.223.271 for kernel
4.12.0-0.bpo.1-amd64 (x86_64)
Wed Sep 27 13:40:09 CEST 2017
/bin/sh: line 0: [: : integer expression expected
/bin/sh: line 0: [: : integer expression expected
Wireless Extension is the only possible API for this kernel version
Using Wireless Extension API
KBUILD_NOPEDANTIC=1 make -C /lib/modules/4.12.0-0.bpo.1-amd64/build M=`pwd`
make[1]: warning: jobserver unavailable: using -j1. Add '+' to parent
make rule.
make[1]: Entering directory '/usr/src/linux-headers-4.12.0-0.bpo.1-amd64'
CFG80211 API is prefered for this kernel version
Using CFG80211 API
Kernel architecture is X86_64
LD /var/lib/dkms/broadcom-sta/6.30.223.271/build/built-in.o
CC [M] /var/lib/dkms/broadcom-sta/6.30.223.271/build/src/shared/linux_osl.o
CC [M] /var/lib/dkms/broadcom-sta/6.30.223.271/build/src/wl/sys/wl_linux.o
/var/lib/dkms/broadcom-sta/6.30.223.271/build/src/wl/sys/wl_linux.c:
In function ‘wl_pci_probe’:
/var/lib/dkms/broadcom-sta/6.30.223.271/build/src/wl/sys/wl_linux.c:774:2:
warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
if ((val & 0x0000ff00) != 0)
^~
/var/lib/dkms/broadcom-sta/6.30.223.271/build/src/wl/sys/wl_linux.c:776:3:
note: ...this statement, but the latter is misleadingly indented as if
it is guarded by the ‘if’
bar1_size = pci_resource_len(pdev, 2);
^~~~~~~~~
/var/lib/dkms/broadcom-sta/6.30.223.271/build/src/wl/sys/wl_linux.c:
In function ‘wl_monitor’:
/var/lib/dkms/broadcom-sta/6.30.223.271/build/src/wl/sys/wl_linux.c:2915:10:
error: ‘struct net_device’ has no member named ‘last_rx’
skb->dev->last_rx = jiffies;
^~
/usr/src/linux-headers-4.12.0-0.bpo.1-common/scripts/Makefile.build:307:
recipe for target
'/var/lib/dkms/broadcom-sta/6.30.223.271/build/src/wl/sys/wl_linux.o'
failed
make[4]: ***
[/var/lib/dkms/broadcom-sta/6.30.223.271/build/src/wl/sys/wl_linux.o]
Error 1
/usr/src/linux-headers-4.12.0-0.bpo.1-common/Makefile:1532: recipe for
target '_module_/var/lib/dkms/broadcom-sta/6.30.223.271/build' failed
make[3]: *** [_module_/var/lib/dkms/broadcom-sta/6.30.223.271/build] Error 2
Makefile:152: recipe for target 'sub-make' failed
make[2]: *** [sub-make] Error 2
Makefile:8: recipe for target 'all' failed
make[1]: *** [all] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.12.0-0.bpo.1-amd64'
Makefile:177: recipe for target 'all' failed
make: *** [all] Error 2
