> There is no need to carry support for pure 32-bit CPUs around in
> cpu_probe() in arch/mips64/kernel/setup.c, since such CPUs are not
> supported by the port and likely won't ever reach that code due to a
> reserved instruction exception earlier. The code is misleading and a
> possible cause of troubles, e.g. the 2.4 branch doesn't link now because
> of an unresolved reference to cpu_has_fpu() which is only needed for
> R2000/R3000.
>
> The following patch removes the code for 2.4. For the trunk
> cpu_has_fpu() would be removed as well. Any objections?
I'm on the road and don't have ready access to the sources,
but if I understand you correctly, I object. The MIPS 5Kc and
the NEC Vr41xx are two examples of 64-bit CPUs which don't
have FPUs, and I believe there is at least one other from
Toshiba. (Tx49-something-or-other).
My personal bleief is that the mips and mips64 trees
should ultimately be merged, and that creating additional
and gratuitous differences should be avoided.
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