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authorChristoph Hellwig <hch@lst.de>2014-11-24 15:36:18 +0100
committerChristoph Hellwig <hch@lst.de>2014-12-04 09:55:45 +0100
commitefc3c1df5fda0aee84f53c226d55804e6dbede4f (patch)
treed06cbf91a62eed9ba3df319ffd96c4eea0a39740 /include
parent79855d178557cc3e3ffd179fd26a64cef48dfb30 (diff)
scsi: remove ->change_queue_type method
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>
Diffstat (limited to 'include')
-rw-r--r--include/scsi/libsas.h1
-rw-r--r--include/scsi/scsi_host.h13
-rw-r--r--include/scsi/scsi_tcq.h3
3 files changed, 0 insertions, 17 deletions
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 832dcc9f86ec..8280234fba90 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -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);
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index c8a462ef9a4e..c2fa8b49cb2e 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -278,19 +278,6 @@ struct scsi_host_template {
int (* change_queue_depth)(struct scsi_device *, int);
/*
- * Fill in this function to allow the changing of tag types
- * (this also allows the enabling/disabling of tag command
- * queueing). An error should only be returned if something
- * went wrong in the driver while trying to set the tag type.
- * If the driver doesn't support the requested tag type, then
- * it should set the closest type it does support without
- * returning an error. Returns the actual tag type set.
- *
- * Status: OPTIONAL
- */
- int (* change_queue_type)(struct scsi_device *, int);
-
- /*
* This function determines the BIOS parameters for a given
* harddisk. These tend to be numbers that are made up by
* the host adapter. Parameters:
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index fe4a70299419..59578beac053 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -15,9 +15,6 @@
#ifdef CONFIG_BLOCK
-
-int scsi_change_queue_type(struct scsi_device *sdev, int tag_type);
-
/**
* scsi_get_tag_type - get the type of tag the device supports
* @sdev: the scsi device