spapr: cleanup spapr_fixup_cpu_numa_dt() usage

even though spapr_fixup_cpu_numa_dt() has no effect on FDT
if numa is disabled, don't call it uselessly. It makes it
obvious at call sites that function is needed only when numa
is enabled.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1496161442-96665-7-git-send-email-imammedo@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

hw/ppc/spapr.c

@@ -182,10 +182,8 @@ static int spapr_fixup_cpu_smt_dt(void *fdt, int offset, PowerPCCPU *cpu,
     return ret;
 }
 
-static int spapr_fixup_cpu_numa_dt(void *fdt, int offset, CPUState *cs)
+static int spapr_fixup_cpu_numa_dt(void *fdt, int offset, PowerPCCPU *cpu)
 {
-    int ret = 0;
-    PowerPCCPU *cpu = POWERPC_CPU(cs);
     int index = ppc_get_vcpu_dt_id(cpu);
     uint32_t associativity[] = {cpu_to_be32(0x5),
                                 cpu_to_be32(0x0),
@@ -195,12 +193,8 @@ static int spapr_fixup_cpu_numa_dt(void *fdt, int offset, CPUState *cs)
                                 cpu_to_be32(index)};
 
     /* Advertise NUMA via ibm,associativity */
-    if (nb_numa_nodes > 1) {
-        ret = fdt_setprop(fdt, offset, "ibm,associativity", associativity,
+    return fdt_setprop(fdt, offset, "ibm,associativity", associativity,
                           sizeof(associativity));
-    }
-
-    return ret;
 }
 
 /* Populate the "ibm,pa-features" property */
@@ -325,9 +319,11 @@ static int spapr_fixup_cpu_dt(void *fdt, sPAPRMachineState *spapr)
             return ret;
         }
 
-        ret = spapr_fixup_cpu_numa_dt(fdt, offset, cs);
-        if (ret < 0) {
-            return ret;
+        if (nb_numa_nodes > 1) {
+            ret = spapr_fixup_cpu_numa_dt(fdt, offset, cpu);
+            if (ret < 0) {
+                return ret;
+            }
         }
 
         ret = spapr_fixup_cpu_smt_dt(fdt, offset, cpu, compat_smt);
@@ -542,7 +538,9 @@ static void spapr_populate_cpu_dt(CPUState *cs, void *fdt, int offset,
     _FDT((fdt_setprop(fdt, offset, "ibm,pft-size",
                       pft_size_prop, sizeof(pft_size_prop))));
 
-    _FDT(spapr_fixup_cpu_numa_dt(fdt, offset, cs));
+    if (nb_numa_nodes > 1) {
+        _FDT(spapr_fixup_cpu_numa_dt(fdt, offset, cpu));
+    }
 
     _FDT(spapr_fixup_cpu_smt_dt(fdt, offset, cpu, compat_smt));