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[SCSI] Add VPD helper

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Based on prior work by Martin Petersen and James Bottomley, this patch
adds a generic helper for retrieving VPD pages from SCSI devices.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Matthew Wilcox
2008-12-31 13:12:46 -05:00
committed by James Bottomley
parent 5fa0ae1982
commit 881a256d84
2 changed files with 105 additions and 0 deletions
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1
include/scsi/scsi_device.h
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@@ -340,6 +340,7 @@ extern int scsi_mode_select(struct scsi_device *sdev, int pf, int sp,
struct scsi_sense_hdr *);
extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout,
int retries, struct scsi_sense_hdr *sshdr);
extern unsigned char *scsi_get_vpd_page(struct scsi_device *, u8 page);
extern int scsi_device_set_state(struct scsi_device *sdev,
enum scsi_device_state state);
extern struct scsi_event *sdev_evt_alloc(enum scsi_device_event evt_type,