[PATCH v5 3/7] wireless: wl12xx: add platform data passing support

Michał Mirosław mirqus at gmail.com
Wed Sep 15 12:10:22 EDT 2010


W dniu 15 września 2010 10:25 użytkownik Russell King - ARM Linux
<linux at arm.linux.org.uk> napisał:
> On Mon, Sep 06, 2010 at 09:42:41PM +0200, Michał Mirosław wrote:
>> W dniu 6 września 2010 14:07 użytkownik Russell King - ARM Linux
>> <linux at arm.linux.org.uk> napisał:
>> > On Sat, Sep 04, 2010 at 02:23:19PM +0200, Michał Mirosław wrote:
>> >> 2010/9/1 Ohad Ben-Cohen <ohad at wizery.com>:
>> >> > Add a simple mechanism to pass platform data to the
>> >> > SDIO instances of wl12xx.
>> [cut patch]
>> >> Why do you need all that copying? Isn't the data constant?
>> > The first copy is to allow platforms to have their data marked with
>> > __initdata.  The second copy probably isn't necessary, but avoids
>> > problems where the driver may decide to modify the platform data.
>> Sorry for pushing at this, but why would you mark data that's meant to
>> be used after init phase as __initdata?
> Because you may have many instances of the data (due to multiple platform
> support), and only need one of them at run-time.

Ah. That makes sense.

Thanks,
Michał Mirosław



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