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4 Commits

Author SHA1 Message Date
Christophe JAILLET
054c6b58fc mtd: nand: bbt: Use the bitmap API to allocate bitmaps 
Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/b18c2b6711b8930f0dfb8318b5d19ef6e41f0f9a.1656864573.git.christophe.jaillet@wanadoo.fr
 2022-09-20 10:06:58 +02:00
Doyle, Patrick
fd0d8d85f7 mtd: nand: bbt: Fix corner case in bad block table handling 
In the unlikely event that both blocks 10 and 11 are marked as bad (on a
32 bit machine), then the process of marking block 10 as bad stomps on
cached entry for block 11.  There are (of course) other examples.

Signed-off-by: Patrick Doyle <pdoyle@irobot.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Yoshio Furuyama <ytc-mb-yfuruyama7@kioxia.com>
[<miquel.raynal@bootlin.com>: Fixed the title]
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/774a92693f311e7de01e5935e720a179fb1b2468.1616635406.git.ytc-mb-yfuruyama7@kioxia.com
 2021-05-10 18:20:54 +02:00
Frieder Schrempf
40b412897c mtd: nand: Fix memory allocation in nanddev_bbt_init() 
Fix the size of the buffer allocated to store the in-memory BBT.
This bug was previously hidden by a different bug, that was fixed in
commit d098093ba06e ("mtd: nand: Fix nanddev_neraseblocks()").

Fixes: 9c3736a3de21 ("mtd: nand: Add core infrastructure to deal with NAND devices")
Cc: <stable@vger.kernel.org>
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
 2018-11-28 15:41:50 +01:00
Boris Brezillon
9c3736a3de mtd: nand: Add core infrastructure to deal with NAND devices 
Add an intermediate layer to abstract NAND device interface so that
some logic can be shared between SPI NANDs, parallel/raw NANDs,
OneNANDs, ...

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
 2018-02-16 10:10:53 +01:00