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scsi: remove ->change_queue_type method

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Since we got rid of ordered tag support in 2010 the prime use case of
switching on and off ordered tags has been obsolete.  The other function
of enabling/disabling tagging entirely has only been correctly implemented
by the 53c700 driver and isn't generally useful.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
This commit is contained in:
Christoph Hellwig
2014-11-24 15:36:18 +01:00
parent 79855d1785
commit efc3c1df5f
25 changed files with 4 additions and 171 deletions
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include/scsi/libsas.h
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@@ -693,7 +693,6 @@ extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *);
extern int sas_target_alloc(struct scsi_target *);
extern int sas_slave_configure(struct scsi_device *);
extern int sas_change_queue_depth(struct scsi_device *, int new_depth);
extern int sas_change_queue_type(struct scsi_device *, int qt);
extern int sas_bios_param(struct scsi_device *,
struct block_device *,
sector_t capacity, int *hsc);