[MTD] update internal API to support 64-bit device size

MTD internal API presently uses 32-bit values to represent
device size.  This patch updates them to 64-bits but leaves
the external API unchanged.  Extending the external API
is a separate issue for several reasons.  First, no one
needs it at the moment.  Secondly, whether the implementation
is done with IOCTLs, sysfs or both is still debated.  Thirdly
external API changes require the internal API to be accepted
first.

Note that although the MTD API will be able to support 64-bit
device sizes, existing drivers do not and are not required
to do so, although NAND base has been updated.

In general, changing from 32-bit to 64-bit values cause little
or no changes to the majority of the code with the following
exceptions:
    	- printk message formats
    	- division and modulus of 64-bit values
    	- NAND base support
	- 32-bit local variables used by mtdpart and mtdconcat
	- naughtily assuming one structure maps to another
	in MEMERASE ioctl

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
index c92b4d439609..164c7d78687d 100644
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -36,8 +36,8 @@
 
 struct mtd_partition {
         char *name;                     /* identifier string */
-        u_int32_t size;                 /* partition size */
-        u_int32_t offset;               /* offset within the master MTD space */
+        uint64_t size;                  /* partition size */
+        uint64_t offset;                /* offset within the master MTD space */
         u_int32_t mask_flags;           /* master MTD flags to mask out for this partition */
         struct nand_ecclayout *ecclayout;       /* out of band layout for this partition (NAND only)*/
         struct mtd_info **mtdp;         /* pointer to store the MTD object */