cmdlinepart with zero offset value

[Atsushi Nemoto]

I found that cmdlinepart.c can not handle zero offset value correctly
(ex. "mtdparts=id:2M at 2M,2M at 0").

This is a patch to fix it.  Also I removed including asm/setup.h since
some archs does not have it.  Please apply.

--- mtd-20030811/drivers/mtd/cmdlinepart.c	Fri May 30 07:00:05 2003
+++ mtd/drivers/mtd/cmdlinepart.c	Tue Aug 12 16:35:43 2003
@@ -29,7 +29,6 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/compatmac.h>
-#include <asm/setup.h>
 #include <linux/bootmem.h>
 
 /* error message prefix */
@@ -45,6 +44,7 @@
 
 /* special size referring to all the remaining space in a partition */
 #define SIZE_REMAINING 0xffffffff
+#define OFFSET_CONTINUOUS 0xffffffff
 
 struct cmdline_mtd_partition {
 	struct cmdline_mtd_partition *next;
@@ -77,7 +77,7 @@
 {
 	struct mtd_partition *parts;
 	unsigned long size;
-	unsigned long offset = 0;
+	unsigned long offset = OFFSET_CONTINUOUS;
 	char *name;
 	int name_len;
 	unsigned char *extra_mem;
@@ -312,7 +312,7 @@
 		{
 			for(i = 0, offset = 0; i < part->num_parts; i++)
 			{
-				if (!part->parts[i].offset)
+				if (part->parts[i].offset == OFFSET_CONTINUOUS)
 				  part->parts[i].offset = offset;
 				else
 				  offset = part->parts[i].offset;
---
Atsushi Nemoto