Re: Yet more ARM breakage in linux-next

From: Mike Frysinger
Date: Wed Dec 03 2008 - 22:56:00 EST


On Wed, Dec 3, 2008 at 21:15, Rusty Russell wrote:
> On Thursday 04 December 2008 12:03:57 Mike Frysinger wrote:
>> On Wed, Dec 3, 2008 at 18:22, Rusty Russell wrote:
>> > On Thursday 04 December 2008 07:11:09 Andrew Morton wrote:
>> >> On Wed, 3 Dec 2008 19:29:05 +0000
>> >>
>> >> Russell King <rmk+lkml@xxxxxxxxxxxxxxxx> wrote:
>> >> > This seems to be causing lots of ARM breakage:
>> >> >
>> >> > lib/find_next_bit.c:183: error: implicit declaration of function
>> >> > '__fls'
>> >> >
>> >> > Whoever's responsible,
>> >>
>> >> git-blame?
>> >
>> > It's me. Turns out sparc, avr32 and arm all don't define __fls in their
>> > asm/bitops.h, and I'm the first one to use it in generic code.
>>
>> the Blackfin port also does not ... you going to post a change for
>> that since the build breaks for Blackfin atm too ?
>
> Sure, why not join the party!
>
> (Hmm, maybe I should change that list to a shorter list of archs which
> *do* define __fls?)
>
> blackfin: define __fls
>
> Like fls, but can't be handed 0 and returns the bit number.
>
> (I broke this arch in linux-next by using __fls in generic code).
>
> Signed-off-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>

cheers
Acked-by: Mike Frysinger <vapier@xxxxxxxxxx>
-mike
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