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authorBart Van Assche <bart.vanassche@sandisk.com>2015-05-08 11:07:48 +0300
committerJames Bottomley <JBottomley@Odin.com>2015-06-01 17:32:43 +0300
commit07e3842055c391e611dd907c81760f4c705f9acb (patch)
tree56005ced37b31c082fa984981a8073a241ff3839 /drivers/scsi/scsi_scan.c
parentc5f1ac8b94bd10f97f5aa1a3279ad8e8bbc6311a (diff)
downloadlinux-07e3842055c391e611dd907c81760f4c705f9acb.tar.xz
Move code that is used both by initiator and target drivers
Move the functions that are used by both the initiator and target subsystems into scsi_common.c/.h. This change will allow to remove the initiator SCSI header include directives from most SCSI target source files in a later patch. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/scsi_scan.c')
-rw-r--r--drivers/scsi/scsi_scan.c62
1 files changed, 0 insertions, 62 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 53a2e3391454..f9f3f8203d42 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1270,68 +1270,6 @@ static void scsi_sequential_lun_scan(struct scsi_target *starget,
}
/**
- * scsilun_to_int - convert a scsi_lun to an int
- * @scsilun: struct scsi_lun to be converted.
- *
- * Description:
- * Convert @scsilun from a struct scsi_lun to a four byte host byte-ordered
- * integer, and return the result. The caller must check for
- * truncation before using this function.
- *
- * Notes:
- * For a description of the LUN format, post SCSI-3 see the SCSI
- * Architecture Model, for SCSI-3 see the SCSI Controller Commands.
- *
- * Given a struct scsi_lun of: d2 04 0b 03 00 00 00 00, this function
- * returns the integer: 0x0b03d204
- *
- * This encoding will return a standard integer LUN for LUNs smaller
- * than 256, which typically use a single level LUN structure with
- * addressing method 0.
- **/
-u64 scsilun_to_int(struct scsi_lun *scsilun)
-{
- int i;
- u64 lun;
-
- lun = 0;
- for (i = 0; i < sizeof(lun); i += 2)
- lun = lun | (((u64)scsilun->scsi_lun[i] << ((i + 1) * 8)) |
- ((u64)scsilun->scsi_lun[i + 1] << (i * 8)));
- return lun;
-}
-EXPORT_SYMBOL(scsilun_to_int);
-
-/**
- * int_to_scsilun - reverts an int into a scsi_lun
- * @lun: integer to be reverted
- * @scsilun: struct scsi_lun to be set.
- *
- * Description:
- * Reverts the functionality of the scsilun_to_int, which packed
- * an 8-byte lun value into an int. This routine unpacks the int
- * back into the lun value.
- *
- * Notes:
- * Given an integer : 0x0b03d204, this function returns a
- * struct scsi_lun of: d2 04 0b 03 00 00 00 00
- *
- **/
-void int_to_scsilun(u64 lun, struct scsi_lun *scsilun)
-{
- int i;
-
- memset(scsilun->scsi_lun, 0, sizeof(scsilun->scsi_lun));
-
- for (i = 0; i < sizeof(lun); i += 2) {
- scsilun->scsi_lun[i] = (lun >> 8) & 0xFF;
- scsilun->scsi_lun[i+1] = lun & 0xFF;
- lun = lun >> 16;
- }
-}
-EXPORT_SYMBOL(int_to_scsilun);
-
-/**
* scsi_report_lun_scan - Scan using SCSI REPORT LUN results
* @starget: which target
* @bflags: Zero or a mix of BLIST_NOLUN, BLIST_REPORTLUN2, or BLIST_NOREPORTLUN