Re: linux-next: Tree for July 17 (mfd: AB3100 - ab3100_probe: undefined reference to `rand_initialize_irq')

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On Tue, Jul 17, 2012 at 8:40 PM, Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
> On Tue, Jul 17, 2012 at 12:39 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
>> On Tue, Jul 17, 2012 at 12:21 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
>>> ...looks like AB3100 is the *only* driver still using rand_initialize_irq()...
>>>
>>> drivers/mfd/ab3100-core.c:939:  rand_initialize_irq(client->irq);
>>>
>>> ...but why has random.h still this...?
>>>
>>> include/linux/random.h:51:extern void rand_initialize_irq(int irq);
>>>
>>> Just thinking "loud"...
>>>
>>> - Sedat -
>>
>> Is this attached patch OK, Ted?
>
> You're just deleting a line from the AB3100 driver, so I guess you're
> regressing the system since that IRQ will no longer contribute
> to the entropy pool?
>
> How do we simultaneously make sure that this IRQ is still
> contributing to the entropy?
>

For the sake of completeness:
* Ted explained in his answer in [1].
* Just FYI: [2] has these changes merged into the original commit.

- Sedat -

[1] http://marc.info/?l=linux-next&m=134256445707799&w=2
[2] http://git.kernel.org/?p=linux/kernel/git/tytso/random.git;a=commitdiff;h=627574db8b21c51217c683909458500916e64963

> Yours,
> Linus Walleij
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