path: root/drivers/mtd/nftlcore.c
diff options
authorAdrian Hunter <ext-adrian.hunter@nokia.com>2008-12-10 13:37:21 +0000
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-12-10 13:37:21 +0000
commit69423d99fc182a81f3c5db3eb5c140acc6fc64be (patch)
tree5f1818e6fb69388f0da276152646bf0597e318c0 /drivers/mtd/nftlcore.c
parent8a4c2495b142fe612b291a810d9e695f269c26db (diff)
[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>
Diffstat (limited to 'drivers/mtd/nftlcore.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index 320b929abe79..d1c4546513f7 100644
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -39,7 +39,7 @@ static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
struct NFTLrecord *nftl;
unsigned long temp;
- if (mtd->type != MTD_NANDFLASH)
+ if (mtd->type != MTD_NANDFLASH || mtd->size > UINT_MAX)
/* OK, this is moderately ugly. But probably safe. Alternatives? */
if (memcmp(mtd->name, "DiskOnChip", 10))