From: Namhyung Kim <namhyung@gmail.com>
Date: Tue, 26 Oct 2010 01:31:19 +0900

quoted text
> 2010-10-25 (월), 08:59 -0700, David Miller:
>> From: Namhyung Kim <namhyung@gmail.com>
>> Date: Tue, 26 Oct 2010 00:52:37 +0900
>> 
>> > Remove HAVE_PERF_EVENTS and PERF_USE_VMALLOC under config
>> > SPARC because they're under SPARC64 too. Supporting
>> > perf_event needs atomic64 operations but AFAIK sparc32
>> > doesn't provide them, CMIIW. ;-) Also removes redundant
>> > HAVE_IRQ_WORK line.
>> > 
>> > Signed-off-by: Namhyung Kim <namhyung@gmail.com>
>> 
>> The generic non-hw perf event stuff builds fine on sparc32,
>> please don't remove this unless you have a legitimate build
>> failure to report and fix.
>> 
>> Even if sparc32 doesn't provide atomic64_t support, it very
>> easily could do so using include/asm-generic/atomic64.h which
>> implements them using spinlocks.
> 
> Now I see following build failure without this patch. Maybe some work is
> needed to deal with atomic64_t. I'll try to prepare for it soon. Thanks.

Nevermind, I see the issue.  Ok, your patch is fine:

Acked-by: David S. Miller <davem@davemloft.net>
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