Defined in 3 files as a macro:
- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h, line 640 (as a macro)
- drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.h, line 8 (as a macro)
- drivers/staging/rtl8188eu/include/rtl8188e_hal.h, line 64 (as a macro)