--- zzzz-none-000/linux-2.6.32.61/drivers/scsi/sg.c	2013-06-10 09:43:48.000000000 +0000
+++ ar9-7330-650/linux-2.6.32.61/drivers/scsi/sg.c	2011-10-21 12:21:44.000000000 +0000
@@ -707,7 +707,7 @@
 sg_common_write(Sg_fd * sfp, Sg_request * srp,
 		unsigned char *cmnd, int timeout, int blocking)
 {
-	int k, data_dir;
+	int k, data_dir __maybe_unused__;
 	Sg_device *sdp = sfp->parentdp;
 	sg_io_hdr_t *hp = &srp->header;