IS_M_TX_UNDERRUN_SHIFT 211 drivers/i2c/busses/i2c-bcm-iproc.c #define ISR_MASK (BIT(IS_M_START_BUSY_SHIFT) | BIT(IS_M_TX_UNDERRUN_SHIFT)\ IS_M_TX_UNDERRUN_SHIFT 488 drivers/i2c/busses/i2c-bcm-iproc.c if (status & BIT(IS_M_TX_UNDERRUN_SHIFT))