linux-kernel - Re: [PATCH 05/11] mtd: nand: use new BBT API instead of old ones

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Date:	Mon, 28 Mar 2016 16:12:08 +0800
From:	Peter Pan <peterpansjtu@...il.com>
To:	Boris Brezillon <boris.brezillon@...e-electrons.com>
Cc:	Brian Norris <computersforpeace@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
	karlzhang@...ron.com, beanhuo@...ron.com, xuejiancheng@...wei.com,
	Peter Pan <peterpandong@...ron.com>
Subject: Re: [PATCH 05/11] mtd: nand: use new BBT API instead of old ones

On Fri, Mar 25, 2016 at 4:51 PM, Boris Brezillon
<boris.brezillon@...e-electrons.com> wrote:
> On Mon, 14 Mar 2016 02:47:58 +0000
> Peter Pan <peterpansjtu@...il.com> wrote:
>
>> Use new BBT APIs (nand_bbt_*()) in NAND. Keep old APIs (nand_*_bbt())
>> exist temporarily.
>>
>> Signed-off-by: Brian Norris <computersforpeace@...il.com>
>> Signed-off-by: Peter Pan <peterpandong@...ron.com>
>> ---
>>  drivers/mtd/nand/docg4.c     |   7 +-
>>  drivers/mtd/nand/nand_base.c | 151 ++++++++++++++++++++++++++++++++++++++++---
>>  include/linux/mtd/nand.h     |  15 ++++-
>>  3 files changed, 160 insertions(+), 13 deletions(-)
>>
>> diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
>> index b6facac..6f0e3b9 100644
>> --- a/drivers/mtd/nand/nand_base.c
>> +++ b/drivers/mtd/nand/nand_base.c
>
> [...]
>
>> +static int nand_default_bbt(struct mtd_info *mtd)
>> +{
>> +     struct nand_chip *chip = mtd_to_nand(mtd);
>> +     struct nand_bbt *nand_bbt = NULL;
>> +     struct nand_chip_layout_info *info =
>> +             kzalloc(sizeof(struct nand_chip_layout_info), GFP_KERNEL);
>
> No, this should be directly embedded in nand_chip, and should replace
> the numchips/chipsize/... fields declared in there.

As I said in patch 2, I keep it like this temporarily. Will embedded it in
struct nand_chip later.

Thanks,
Peter Pan