diff -urNdb u-boot/arch/arm/cpu/armv7/tegra-common/board.c u-boot.new/arch/arm/cpu/armv7/tegra-common/board.c
--- u-boot/arch/arm/cpu/armv7/tegra-common/board.c	2011-12-15 17:28:52.000000000 +0100
+++ u-boot.new/arch/arm/cpu/armv7/tegra-common/board.c	2011-12-20 15:05:10.603876354 +0100
@@ -41,6 +41,7 @@
 	u32 reg;
 
 	reg = readl(&pmc->pmc_scratch20);
+	(void) reg;
 	debug("pmc->pmc_scratch20 (ODMData) = 0x%08X\n", reg);
 
 //Colibri T20 does not use OdmData
diff -urNdb u-boot/common/cmd_mtdparts.c u-boot.new/common/cmd_mtdparts.c
--- u-boot/common/cmd_mtdparts.c	2011-12-06 17:10:16.000000000 +0100
+++ u-boot.new/common/cmd_mtdparts.c	2011-12-20 15:12:07.454221888 +0100
@@ -871,9 +871,12 @@
 	debug("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
 			id->type, MTD_DEV_TYPE(id->type),
 			id->num, id->mtd_id);
+#ifdef  DEBUG
 	pend = strchr(p, ';');
 	debug("parsing partitions %.*s\n", (pend ? pend - p : strlen(p)), p);
-
+#else
+	(void)pend;
+#endif	
 
 	/* parse partitions */
 	num_parts = 0;
diff -urNdb u-boot/common/cmd_ubi.c u-boot.new/common/cmd_ubi.c
--- u-boot/common/cmd_ubi.c	2011-12-06 17:10:16.000000000 +0100
+++ u-boot.new/common/cmd_ubi.c	2011-12-20 15:14:57.464387590 +0100
@@ -316,7 +316,6 @@
 static int ubi_volume_read(char *volume, char *buf, size_t size)
 {
 	int err, lnum, off, len, tbuf_size;
-	size_t count_save = size;
 	void *tbuf;
 	unsigned long long tmp;
 	struct ubi_volume *vol;
@@ -347,7 +346,7 @@
 	if (vol->corrupted)
 		printf("read from corrupted volume %d", vol->vol_id);
 	if (offp + size > vol->used_bytes)
-		count_save = size = vol->used_bytes - offp;
+		size = vol->used_bytes - offp;
 
 	tbuf_size = vol->usable_leb_size;
 	if (size < tbuf_size)
diff -urNdb u-boot/drivers/mtd/ubi/vmt.c u-boot.new/drivers/mtd/ubi/vmt.c
--- u-boot/drivers/mtd/ubi/vmt.c	2011-12-06 17:10:16.000000000 +0100
+++ u-boot.new/drivers/mtd/ubi/vmt.c	2011-12-20 15:16:48.334522354 +0100
@@ -684,6 +684,7 @@
 
 	ubi->volumes[vol->vol_id] = NULL;
 	err = ubi_destroy_gluebi(vol);
+	(void) err;
 	cdev_del(&vol->cdev);
 	volume_sysfs_close(vol);
 }
diff -urNdb u-boot/drivers/usb/eth/asix.c u-boot.new/drivers/usb/eth/asix.c
--- u-boot/drivers/usb/eth/asix.c	2011-12-15 17:28:52.000000000 +0100
+++ u-boot.new/drivers/usb/eth/asix.c	2011-12-20 15:22:59.254665754 +0100
@@ -364,6 +364,8 @@
 
 	rx_ctl = asix_read_rx_ctl(dev);
 	debug("RX_CTL is 0x%04x after software reset\n", rx_ctl);
+        (void)rx_ctl;
+
 	if (asix_write_rx_ctl(dev, 0x0000) < 0)
 		goto out_err;
 
diff -urNdb u-boot/fs/jffs2/jffs2_1pass.c u-boot.new/fs/jffs2/jffs2_1pass.c
--- u-boot/fs/jffs2/jffs2_1pass.c	2011-12-06 17:10:01.000000000 +0100
+++ u-boot.new/fs/jffs2/jffs2_1pass.c	2011-12-20 15:40:45.114614263 +0100
@@ -813,6 +813,7 @@
 #if 0
 	putLabeledWord("read_inode: returning = ", totalSize);
 #endif
+	(void) ret;
 	return totalSize;
 }
 
@@ -1575,9 +1576,8 @@
 
 			if (*(uint32_t *)(&buf[ofs-buf_ofs]) == 0xffffffff) {
 				uint32_t inbuf_ofs;
-				uint32_t empty_start, scan_end;
+				uint32_t scan_end;
 
-				empty_start = ofs;
 				ofs += 4;
 				scan_end = min_t(uint32_t, EMPTY_SCAN_SIZE(
 							part->sector_size)/8,
diff -urNdb u-boot/lib/lzo/lzo1x_decompress.c u-boot.new/lib/lzo/lzo1x_decompress.c
--- u-boot/lib/lzo/lzo1x_decompress.c	2011-12-06 17:10:00.000000000 +0100
+++ u-boot.new/lib/lzo/lzo1x_decompress.c	2011-12-20 15:42:36.064554125 +0100
@@ -48,6 +48,7 @@
 	src += 7;
 	if (version >= 0x0940)
 		level = *src++;
+	(void) level;
 	if (get_unaligned_be32(src) & HEADER_HAS_FILTER)
 		src += 4; /* filter info */