P2P_MAX_REG_CLASS_CHANNELS  366 drivers/staging/rtl8188eu/include/rtw_mlme_ext.h #define P2P_MAX_REG_CLASS_CHANNELS 20
P2P_MAX_REG_CLASS_CHANNELS  446 drivers/staging/rtl8723bs/include/rtw_mlme_ext.h #define P2P_MAX_REG_CLASS_CHANNELS 20