powerpc/prom: Fix 32-bit build

Add an IS_ENABLED() check to fix the build error:

arch/powerpc/kernel/prom.o: in function `early_init_dt_scan_cpus':
  prom.c:(.init.text+0x2ea): undefined reference to `boot_cpu_node_count'

Fixes: e13d23a404f2 ("powerpc: export the CPU node count")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 645f4450dfc38b4a8578c333edf899b14aa31951..4f1c920aa13ed5b0c5b0cb2e6890269a5d10ac46 100644 (file)
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -336,7 +336,8 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
        if (type == NULL || strcmp(type, "cpu") != 0)
                return 0;
 
-       boot_cpu_node_count++;
+       if (IS_ENABLED(CONFIG_PPC64))
+               boot_cpu_node_count++;
 
        /* Get physical cpuid */
        intserv = of_get_flat_dt_prop(node, "ibm,ppc-interrupt-server#s", &len);