Comment 20 for bug 1468628

Related SSB options from 3.12 config:
CONFIG_B43_SSB=y
CONFIG_SSB_POSSIBLE=y
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_BLOCKIO=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_B43_PCI_BRIDGE=y
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y

but updates/cw-3.12/defconfigs/wifi from linux-backports-modules-3.2.0_3.2.0-86.78.tar.gz has only
CONFIG_SSB=m
CONFIG_SSB_PCMCIAHOST=y
CONFIG_SSB_SDIOHOST=y