scsi: core: Make scsi_result_to_blk_status() recognize CONDITION MET
Ensure that CONDITION MET and other non-zero status values that indicate success are translated into BLK_STS_OK. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Douglas Gilbert <dgilbert@interlog.com> Cc: Damien Le Moal <damien.lemoal@wdc.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Lee Duncan <lduncan@suse.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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@ -733,6 +733,15 @@ static bool scsi_end_request(struct request *req, blk_status_t error,
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static blk_status_t scsi_result_to_blk_status(struct scsi_cmnd *cmd, int result)
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{
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switch (host_byte(result)) {
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case DID_OK:
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/*
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* Also check the other bytes than the status byte in result
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* to handle the case when a SCSI LLD sets result to
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* DRIVER_SENSE << 24 without setting SAM_STAT_CHECK_CONDITION.
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*/
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if (scsi_status_is_good(result) && (result & ~0xff) == 0)
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return BLK_STS_OK;
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return BLK_STS_IOERR;
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case DID_TRANSPORT_FAILFAST:
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return BLK_STS_TRANSPORT;
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case DID_TARGET_FAILURE:
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