Add SPC version verification to avoid unnecessary inquiry command
Signed-off-by: Yohan Joung <yohan.joung@xxxxxx>
---
drivers/scsi/sd.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 6203915945a4..9d71ad24d8e3 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3413,11 +3413,16 @@ static inline sector_t sd64_to_sectors(struct scsi_disk *sdkp, u8 *buf)
static void sd_read_cpr(struct scsi_disk *sdkp)
{
struct blk_independent_access_ranges *iars = NULL;
+ struct scsi_device *sdev = sdkp->device;
unsigned char *buffer = NULL;
unsigned int nr_cpr = 0;
int i, vpd_len, buf_len = SD_BUF_SIZE;
u8 *desc;
+ /* Support for CPR was defined in SPC-5. */
+ if (sdev->scsi_level < SCSI_SPC_5)
+ return;
+
/*
* We need to have the capacity set first for the block layer to be
* able to check the ranges.
--
2.25.1
