RE: [PATCH] new helper to define common struct resource constructs

From: H Hartley Sweeten
Date: Wed Jul 13 2011 - 18:15:24 EST


On Wednesday, July 13, 2011 2:42 PM, Arnd Bergmann wrote:
> On Wednesday 13 July 2011 23:18:49 Andrew Morton wrote:
>>> On Monday 11 July 2011, Uwe Kleine-K__nig wrote:
>>>> resource definitions that just define start, end and flags = IORESOURCE_MEM
>>>> or IORESOURCE_IRQ (with start=end) are quite common. So introduce a shortcut
>>>> for them. Also make available a macro to specify named resources of both
>>>> types which are less common.
>>>>
>>>> Signed-off-by: Uwe Kleine-K____nig <u.kleine-koenig@xxxxxxxxxxxxxx>
>>>
>>> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
>>>
>>> What do others think, is this worthwhile?
>>> Should we also define macros for IORESOURCE_IO and IORESOURCE_DMA?
>>>
>>
>> It would help if we could see some usage examples (ie: sample
>> conversions), to get a better idea of the value of this.
>
> Uwe posted a patch '[PATCH] ARM: mxc: use new helpers to define
> common struct resource entries' that converts one ARM platform to use
> it, with reasonable outcome:
>
> 26 files changed, 72 insertions(+), 308 deletions(-)

ep93xx doesn't have that many but converting it's core.c gives:

1 files changed, 19 insertions(+), 93 deletions(-)

Regards,
Hartley
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/