powerpc: Fix topology core_id endian issue on LE builds

cpu_to_core_id() is missing a byteswap:

cat /sys/devices/system/cpu/cpu63/topology/core_id
201326592

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index a3b64f3bf9a298b057cfdc57b008ea01eebecf63..c1cf4a1522d9940bf3bb97a3e995a2642dee41ca 100644 (file)
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -580,7 +580,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 int cpu_to_core_id(int cpu)
 {
        struct device_node *np;
-       const int *reg;
+       const __be32 *reg;
        int id = -1;
 
        np = of_get_cpu_node(cpu, NULL);
@@ -591,7 +591,7 @@ int cpu_to_core_id(int cpu)
        if (!reg)
                goto out;
 
-       id = *reg;
+       id = be32_to_cpup(reg);
 out:
        of_node_put(np);
        return id;