powerpc: Make sure we copy all cpu_spec features except PMC related ones

static void __init setup_cpu_spec(unsigned long offset, struct cpu_spec *s)

{

	struct cpu_spec *t = &the_cpu_spec;

	struct cpu_spec old;

	t = PTRRELOC(t);

	old = *t;

	/* Copy everything, then do fixups */

	*t = *s;

	/*

	 * If we are overriding a previous value derived from the real

	 * PVR with a new value obtained using a logical PVR value,

	 * don't modify the performance monitor fields.

	 */

	if (t->num_pmcs && !s->num_pmcs) {

		t->cpu_name = s->cpu_name;

		t->cpu_features = s->cpu_features;

		t->cpu_user_features = s->cpu_user_features;

		t->icache_bsize = s->icache_bsize;

		t->dcache_bsize = s->dcache_bsize;

		t->cpu_setup = s->cpu_setup;

		t->cpu_restore = s->cpu_restore;

		t->platform = s->platform;

	if (old.num_pmcs && !s->num_pmcs) {

		t->num_pmcs = old.num_pmcs;

		t->pmc_type = old.pmc_type;

		t->oprofile_type = old.oprofile_type;

		t->oprofile_mmcra_sihv = old.oprofile_mmcra_sihv;

		t->oprofile_mmcra_sipr = old.oprofile_mmcra_sipr;

		t->oprofile_mmcra_clear = old.oprofile_mmcra_clear;

		/*

		 * If we have passed through this logic once before and

		 * have pulled the default case because the real PVR was

		 * and, in that case, keep the current value for

		 * oprofile_cpu_type.

		 */

		if (t->oprofile_cpu_type == NULL)

		if (old.oprofile_cpu_type == NULL)

			t->oprofile_cpu_type = s->oprofile_cpu_type;

	} else

		*t = *s;

	}

	*PTRRELOC(&cur_cpu_spec) = &the_cpu_spec;