RTW_ERP_INFO_USE_PROTECTION 302 drivers/staging/rtl8188eu/include/ieee80211.h #define RTW_ERP_INFO_USE_PROTECTION BIT(1) RTW_ERP_INFO_USE_PROTECTION 305 drivers/staging/rtl8723bs/include/ieee80211.h #define RTW_ERP_INFO_USE_PROTECTION BIT(1)