[Q] perf, x86: should perf_event_x.c being compiled conditionally?

[Cyrill Gorcunov]

Hi,

while was building the kernel for pretty old laptop I've noticed
that perf_event_x.c depends on CONFIG_CPU_SUP_ only. So I'm somehow
confused. Should not some additional condition being used?

For example if a person have Core 2 or Nehalem machine, he will
definitely not need p6 and p4 events (yes, they are not _that_ big
in size, but anyway).

On the other hands distro builders would prefer to have all compiled in.

Not sure about what is the best way to resolve this, but perhaps I'm just
missing some key moment?

	-- Cyrill
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