scsi: hpsa: Use vsnprintf extension %phN

Using this extension reduces the object size.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/hpsa.c

@@ -4619,21 +4619,13 @@ static int hpsa_scatter_gather(struct ctlr_info *h,
 	return 0;
 }
 
-#define BUFLEN 128
 static inline void warn_zero_length_transfer(struct ctlr_info *h,
 						u8 *cdb, int cdb_len,
 						const char *func)
 {
-	char buf[BUFLEN];
-	int outlen;
-	int i;
-
-	outlen = scnprintf(buf, BUFLEN,
-				"%s: Blocking zero-length request: CDB:", func);
-	for (i = 0; i < cdb_len; i++)
-		outlen += scnprintf(buf+outlen, BUFLEN - outlen,
-					"%02hhx", cdb[i]);
-	dev_warn(&h->pdev->dev, "%s\n", buf);
+	dev_warn(&h->pdev->dev,
+		 "%s: Blocking zero-length request: CDB:%*phN\n",
+		 func, cdb_len, cdb);
 }
 
 #define IO_ACCEL_INELIGIBLE 1