From: Hannes Reinecke Subject: Retry ALUA device handler initialization on Unit Attention Patch-mainline: not yet Whenever we receive a UNIT ATTENTION sense code we should just retry the command. No point in checking the various sense codes here. Signed-off-by: Hannes Reinecke --- drivers/scsi/device_handler/scsi_dh_alua.c | 31 +++-------------------------- 1 file changed, 4 insertions(+), 27 deletions(-) --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -495,33 +495,10 @@ static int alua_check_sense(struct scsi_ return SUCCESS; break; case UNIT_ATTENTION: - if (sense_hdr->asc == 0x29 && sense_hdr->ascq == 0x00) - /* - * Power On, Reset, or Bus Device Reset, just retry. - */ - return ADD_TO_MLQUEUE; - if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x06) { - /* - * ALUA state changed - */ - return ADD_TO_MLQUEUE; - } - if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x07) { - /* - * Implicit ALUA state transition failed - */ - return ADD_TO_MLQUEUE; - } - if (sense_hdr->asc == 0x3f && sense_hdr->ascq == 0x0e) { - /* - * REPORTED_LUNS_DATA_HAS_CHANGED is reported - * when switching controllers on targets like - * Intel Multi-Flex. We can just retry. - */ - return ADD_TO_MLQUEUE; - } - - break; + /* + * Just retry for UNIT_ATTENTION + */ + return ADD_TO_MLQUEUE; } return SCSI_RETURN_NOT_HANDLED;