On 03/02/2012 06:31 AM, Robert Richter wrote:
On 23.02.12 17:25:11, Robert Richter wrote:
> On 23.02.12 10:12:35, Will Deacon wrote:
>> On Thu, Feb 23, 2012 at 04:08:23AM +0000, William Cohen wrote:
>>> I was looking to see why the arm kernel builds for fedora 17 were failing
>>> arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:28:28: error:
variably modified 'perf_events' at file scope
>>> The error points to the following line in oprofile_perf.c:
>>> static struct perf_event **perf_events[nr_cpumask_bits];
>> That or use NR_CPUS instead (which will be the same as nr_cpu_ids on ARM).
> the patch below uses per-cpu macros and should probably fix the
> above. But it's *compile tested only*.
could you give this patch a try? I would like to remove the cpu array
implementation and change the code to use the cpu framework.
Please, send me also your config for further testing.
I was also able to build a kernel with the patch/option and run it. I did make sure I had
the options set that previously caused problems, CONFIG_CPUMASK_OFFSTACK and
However, I don't think I am actually exercising the modified code because of:
Bug 741325 - ARM fc14 kernels does not provide hardware perf counter support