[PATCH] mtd: spi-nor: extend description of size member of struct flash_info
Tudor Ambarus
tudor.ambarus at linaro.org
Thu Dec 19 02:01:41 PST 2024
On 12/19/24 9:38 AM, Miquel Raynal wrote:
> On 19/12/2024 at 09:20:04 GMT, Tudor Ambarus <tudor.ambarus at linaro.org> wrote:
>
>> We use the size as an indicator whether to parse SFDP or not. We don't
>> introduce a dedicated member for SFDP parsing because we'd like to keep
>> the struct size at a minimum, as it's used for every flash declaration.
>> Ideally we won't have flash entries at all, but there are still flash
>> parameters that aren't defined by SFDP, thus we need to statically
>> specify them.
>
> TBH I'd be perfectly fine (and prefer) a dedicated member, because
> code clarity is IMO more important than memory footprint today.
>
> However for now I am totally agreeing with changes clarifying what we
> currently do, so:
>
> Reviewed-by: Miquel Raynal <miquel.raynal at bootlin.com>
>
> One minor nit below though:
>
>> + * @size: the size of the flash in bytes. The flash size is one
>> + * property parsed by the SFDP. We use it as an indicator
>> + * whether we need SFDP parsing for a particular flash.
>> + * I.e. non-legacy flash entries in flash_info will have
>> + * a size of zero iff SFDP should be used.
>
> typo, 'if' ^^^
>
iff is a conjunction: if and only if.
I think Michael used it to emphasize that we don't allow size > 0 when
we want SFDP parsing. Using if allows it.
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