CSR18_SIFS        237 drivers/net/wireless/ralink/rt2x00/rt2400pci.h #define CSR18_SIFS			FIELD32(0x0000ffff)
CSR18_SIFS        314 drivers/net/wireless/ralink/rt2x00/rt2500pci.h #define CSR18_SIFS			FIELD32(0x000001ff)