scsi: target: use #define for xcopy descriptor len

Link: https://lore.kernel.org/r/20200327141954.955-2-ddiss@suse.de
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 425c1070de08143e19a01efa459a62dae5186788..7e5b13da0c20b313de50f526326de63d4deac90b 100644 (file)
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -134,7 +134,7 @@ static int target_xcopy_parse_tiddesc_e4(struct se_cmd *se_cmd, struct xcopy_op
         * Assigned designator
         */
        desig_len = desc[7];
-       if (desig_len != 16) {
+       if (desig_len != XCOPY_NAA_IEEE_REGEX_LEN) {
                pr_err("XCOPY 0xe4: invalid desig_len: %d\n", (int)desig_len);
                return -EINVAL;
        }