Re: [PATCH v4 07/15] mtd: nand: move Samsung specific init/detection logic in nand_samsung.c

[Marek Vasut]

On 01/04/2017 06:08 PM, Boris Brezillon wrote:
> On Wed, 4 Jan 2017 16:14:07 +0100
> Marek Vasut <marek.vasut@xxxxxxxxx> wrote:
> 
>> On 01/03/2017 02:01 PM, Boris Brezillon wrote:
>>> Move Samsung specific initialization and detection logic into
>>> nand_samsung.c. This is part of the "separate vendor specific code from
>>> core" cleanup process.
>>>
>>> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>  
>>
>> [...]
>>
>>> diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c
>>> index b3a332f37e14..05e9366696c9 100644
>>> --- a/drivers/mtd/nand/nand_ids.c
>>> +++ b/drivers/mtd/nand/nand_ids.c
>>> @@ -10,7 +10,7 @@
>>>  #include <linux/mtd/nand.h>
>>>  #include <linux/sizes.h>
>>>  
>>> -#define LP_OPTIONS NAND_SAMSUNG_LP_OPTIONS
>>> +#define LP_OPTIONS 0
>>>  #define LP_OPTIONS16 (LP_OPTIONS | NAND_BUSWIDTH_16)
>>>  
>>>  #define SP_OPTIONS NAND_NEED_READRDY
>>> @@ -169,10 +169,12 @@ struct nand_flash_dev nand_flash_ids[] = {
>>>  };
>>>  
>>>  /* Manufacturer IDs */
>>> +extern const struct nand_manufacturer_ops samsung_nand_manuf_ops;  
>>
>> Is the extern needed ?
> 
> Yes, unless you have another solution. If you remove the extern keyword
> you just redeclare samsung_nand_manuf_ops here, which is not what we
> want.

Maybe some accessor function can help ?

-- 
Best regards,
Marek Vasut