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authorChristoph Hellwig <hch@lst.de>2016-09-11 19:35:39 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2016-09-15 09:41:09 -0400
commit6ebf105cc047f3877ac530cd19d13b3e788ab02e (patch)
treef46faa0690c84d0016f0f5309954c4f887c167e0 /drivers/scsi
parentc08b3f9a27006c5c541b5c0fa273444a93617fda (diff)
scsi: scsi_debug: Use struct t10_pi_tuple instead of struct sd_dif_tuple
And remove the declaration of the latter in sd.h as scsi_debug was the only user. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/scsi_debug.c15
-rw-r--r--drivers/scsi/sd.h9
2 files changed, 8 insertions, 16 deletions
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 6a219a0844d3..044fc939043f 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -42,6 +42,7 @@
#include <linux/atomic.h>
#include <linux/hrtimer.h>
#include <linux/uuid.h>
+#include <linux/t10-pi.h>
#include <net/checksum.h>
@@ -627,7 +628,7 @@ static LIST_HEAD(sdebug_host_list);
static DEFINE_SPINLOCK(sdebug_host_list_lock);
static unsigned char *fake_storep; /* ramdisk storage */
-static struct sd_dif_tuple *dif_storep; /* protection info */
+static struct t10_pi_tuple *dif_storep; /* protection info */
static void *map_storep; /* provisioning map */
static unsigned long map_size;
@@ -682,7 +683,7 @@ static void *fake_store(unsigned long long lba)
return fake_storep + lba * sdebug_sector_size;
}
-static struct sd_dif_tuple *dif_store(sector_t sector)
+static struct t10_pi_tuple *dif_store(sector_t sector)
{
sector = sector_div(sector, sdebug_store_sectors);
@@ -2430,7 +2431,7 @@ static __be16 dif_compute_csum(const void *buf, int len)
return csum;
}
-static int dif_verify(struct sd_dif_tuple *sdt, const void *data,
+static int dif_verify(struct t10_pi_tuple *sdt, const void *data,
sector_t sector, u32 ei_lba)
{
__be16 csum = dif_compute_csum(data, sdebug_sector_size);
@@ -2504,7 +2505,7 @@ static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
unsigned int sectors, u32 ei_lba)
{
unsigned int i;
- struct sd_dif_tuple *sdt;
+ struct t10_pi_tuple *sdt;
sector_t sector;
for (i = 0; i < sectors; i++, ei_lba++) {
@@ -2696,7 +2697,7 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec,
unsigned int sectors, u32 ei_lba)
{
int ret;
- struct sd_dif_tuple *sdt;
+ struct t10_pi_tuple *sdt;
void *daddr;
sector_t sector = start_sec;
int ppage_offset;
@@ -2722,7 +2723,7 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec,
}
for (ppage_offset = 0; ppage_offset < piter.length;
- ppage_offset += sizeof(struct sd_dif_tuple)) {
+ ppage_offset += sizeof(struct t10_pi_tuple)) {
/* If we're at the end of the current
* data page advance to the next one
*/
@@ -5026,7 +5027,7 @@ static int __init scsi_debug_init(void)
if (sdebug_dix) {
int dif_size;
- dif_size = sdebug_store_sectors * sizeof(struct sd_dif_tuple);
+ dif_size = sdebug_store_sectors * sizeof(struct t10_pi_tuple);
dif_storep = vmalloc(dif_size);
pr_err("dif_storep %u bytes @ %p\n", dif_size, dif_storep);
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index 765a6f1ac1b7..d00966d6b41e 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -239,15 +239,6 @@ static inline unsigned int sd_prot_flag_mask(unsigned int prot_op)
return flag_mask[prot_op];
}
-/*
- * Data Integrity Field tuple.
- */
-struct sd_dif_tuple {
- __be16 guard_tag; /* Checksum */
- __be16 app_tag; /* Opaque storage */
- __be32 ref_tag; /* Target LBA or indirect LBA */
-};
-
#ifdef CONFIG_BLK_DEV_INTEGRITY
extern void sd_dif_config_host(struct scsi_disk *);