[PATCH 09/17] MTD: nand: make MTD_OOB_PLACE work correctly.
in [Kernel]
|
Prev: [PATCH 11/17] MTD: nand: make suspend work if device is accessed by kernel threads.
Next: of platforms: Move common static initialization to of_node_init()
From: Maxim Levitsky on 9 Feb 2010 12:00 MTD_OOB_PLACE is supposed to read/write raw oob data similiar to MTD_OOB_RAW however due to a bug, currently its not possible to read more data that specified in oob 'free' regions Signed-off-by: Maxim Levitsky <maximlevitsky(a)gmail.com> --- drivers/mtd/nand/nand_base.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 8f2958f..405c538 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1232,6 +1232,9 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, int ret = 0; uint32_t readlen = ops->len; uint32_t oobreadlen = ops->ooblen; + uint32_t max_oobsize = ops->mode == MTD_OOB_AUTO ? + mtd->oobavail : mtd->oobsize; + uint8_t *bufpoi, *oob, *buf; stats = mtd->ecc_stats; @@ -1282,10 +1285,11 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, buf += bytes; if (unlikely(oob)) { + /* Raw mode does data:oob:data:oob */ if (ops->mode != MTD_OOB_RAW) { int toread = min(oobreadlen, - chip->ecc.layout->oobavail); + max_oobsize); if (toread) { oob = nand_transfer_oob(chip, oob, ops, toread); -- 1.6.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |