#define DESC_ABLKCIPHER_DEC_LEN (DESC_ABLKCIPHER_BASE + \
15 * CAAM_CMD_SZ)
-#define DESC_MAX_USED_LEN (CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN)
+#define DESC_MAX_USED_BYTES (CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN)
+#define DESC_MAX_USED_LEN (DESC_MAX_USED_BYTES / CAAM_CMD_SZ)
#ifdef DEBUG
/* for print_hex_dumps with line references */