DKMS make.log for bcmwl-6.30.223.248+bdcom for kernel 4.2.0-040200rc6-generic (x86_64)
Tue Aug 11 15:57:41 PKT 2015
make: Entering directory '/usr/src/linux-headers-4.2.0-040200rc6-generic'
CFG80211 API is prefered for this kernel version
Using CFG80211 API
LD /var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/built-in.o
CC [M] /var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/src/shared/linux_osl.o
CC [M] /var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/src/wl/sys/wl_linux.o
CC [M] /var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/src/wl/sys/wl_iw.o
CC [M] /var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.o
LD [M] /var/lib/dkms/bcmwl/6.30.223.248+bdcom/build/wl.o
Building modules, stage 2.
CFG80211 API is prefered for this kernel version
Using CFG80211 API
MODPOST 1 modules
FATAL: modpost: GPL-incompatible module wl.ko uses GPL-only symbol 'flush_workqueue'
scripts/Makefile.modpost:90: recipe for target '__modpost' failed
make[1]: *** [__modpost] Error 1
Makefile:1389: recipe for target 'modules' failed
make: *** [modules] Error 2
make: Leaving directory '/usr/src/linux-headers-4.2.0-040200rc6-generic'