From 1f92267c51a514f35ad5b0fd46cb099c0980b679 Mon Sep 17 00:00:00 2001 From: Vitaly Wool Date: Tue, 6 Mar 2007 16:56:34 +0300 Subject: [PATCH] [MTD] [NAND] make oobavail public During the MTD rework the oobavail parameter of mtd_info structure has become private. This is not quite correct in terms of integrity and logic. If we have means to write to OOB area, then we'd like to know upfront how many bytes out of OOB are spare per page to be able to adapt to specific cases. The patch inlined adds the public oobavail parameter. Signed-off-by: Vitaly Wool Signed-off-by: David Woodhouse --- drivers/mtd/mtdconcat.c | 1 + drivers/mtd/mtdpart.c | 1 + drivers/mtd/nand/nand_base.c | 1 + drivers/mtd/onenand/onenand_base.c | 1 + include/linux/mtd/mtd.h | 1 + 5 files changed, 5 insertions(+) diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c index 880580c44e01..41844ea02462 100644 --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c @@ -727,6 +727,7 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[], /* subdevices to c concat->mtd.erasesize = subdev[0]->erasesize; concat->mtd.writesize = subdev[0]->writesize; concat->mtd.oobsize = subdev[0]->oobsize; + concat->mtd.oobavail = subdev[0]->oobavail; if (subdev[0]->writev) concat->mtd.writev = concat_writev; if (subdev[0]->read_oob) diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 633def3fb087..01e4afff42b0 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -338,6 +338,7 @@ int add_mtd_partitions(struct mtd_info *master, slave->mtd.size = parts[i].size; slave->mtd.writesize = master->writesize; slave->mtd.oobsize = master->oobsize; + slave->mtd.oobavail = master->oobavail; slave->mtd.subpage_sft = master->subpage_sft; slave->mtd.name = parts[i].name; diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index acaf97bc80d1..6af37b8cff65 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2524,6 +2524,7 @@ int nand_scan_tail(struct mtd_info *mtd) for (i = 0; chip->ecc.layout->oobfree[i].length; i++) chip->ecc.layout->oobavail += chip->ecc.layout->oobfree[i].length; + mtd->oobavail = chip->ecc.layout->oobavail; /* * Set the number of read / write steps for one page depending on ECC diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 7f1cb6e5dccb..621c3f8ec27b 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -2367,6 +2367,7 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) for (i = 0; this->ecclayout->oobfree[i].length; i++) this->ecclayout->oobavail += this->ecclayout->oobfree[i].length; + mtd->oobavail = this->ecclayout->oobavail; mtd->ecclayout = this->ecclayout; diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 6a8570be331b..3d956c3abb31 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -121,6 +121,7 @@ struct mtd_info { u_int32_t writesize; u_int32_t oobsize; // Amount of OOB data per block (e.g. 16) + u_int32_t oobavail; // Available OOB bytes per block // Kernel-only stuff starts here. char *name; -- 2.20.1