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Date: Thu, 17 Nov 2016 08:51:23 +0100 From: Boris Brezillon <boris.brezillon@...e-electrons.com> To: Peter Pan <peterpansjtu@...il.com> Cc: Richard Weinberger <richard@....at>, linux-mtd@...ts.infradead.org, David Woodhouse <dwmw2@...radead.org>, Brian Norris <computersforpeace@...il.com>, Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>, linux-kernel@...r.kernel.org, "peterpandong@...ron.com" <peterpandong@...ron.com> Subject: Re: [PATCH v2 6/7] mtd: nand: raw: make BBT code more generic On Thu, 17 Nov 2016 14:19:29 +0800 Peter Pan <peterpansjtu@...il.com> wrote: > Hi Boris, > > On Sun, Oct 16, 2016 at 10:35 PM, Boris Brezillon > <boris.brezillon@...e-electrons.com> wrote: > > BBT support is currently tightly tied to raw NAND, though this is the kind > > of code we could share across all NAND based devices, no matter what > > physical interface is to communicate with the NAND chip. > > > > Make BBT code interface agnostic by replacing all occurrence of > > struct nand_chip by struct nand_device, and move functions that are > > specific to raw NANDs to drivers/mtd/nand/rawnand/nand_base.c. > > > > Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com> > > --- > > drivers/mtd/nand/raw/nand_base.c | 78 ++++- > > drivers/mtd/nand/raw/nand_bbt.c | 609 ++++++++++++++++++--------------------- > > include/linux/mtd/nand.h | 8 + > > include/linux/mtd/rawnand.h | 4 - > > 4 files changed, 361 insertions(+), 338 deletions(-) > > > > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c > > index b86f4a1bfbe1..4930b3569de9 100644 > > --- a/drivers/mtd/nand/raw/nand_base.c > > +++ b/drivers/mtd/nand/raw/nand_base.c > > @@ -471,7 +471,7 @@ static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs) > > > > /* Mark block bad in BBT */ > > if (chip->bbt) { > > Should be "if (!nand->bbt.bbt)". Indeed. And this makes me realize this chip->bbt field should be gone (which is not the case since I had no compilation error). > > > - res = nand_markbad_bbt(mtd, ofs); > > + res = nand_markbad_bbt(mtd_to_nand(mtd), ofs); > > if (!ret) > > ret = res; > > }
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