RTL8365MB_L2_MC_D5_MBR_HI2_MSK
val = FIELD_GET(RTL8365MB_L2_MC_D5_MBR_HI2_MSK, data[5]);
data[5] |= FIELD_PREP(RTL8365MB_L2_MC_D5_MBR_HI2_MSK, val);