powerpc/setup: cleanup ifdef mess in check_cache_coherency()

Use IS_ENABLED() instead of #ifdefs

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 3cb3774..6d3ebc4 100644 (file)
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -737,23 +737,19 @@ void __init setup_panic(void)
  * BUG() in that case.
  */
 
-#ifdef CONFIG_NOT_COHERENT_CACHE
-#define KERNEL_COHERENCY       0
-#else
-#define KERNEL_COHERENCY       1
-#endif
+#define KERNEL_COHERENCY       (!IS_ENABLED(CONFIG_NOT_COHERENT_CACHE))
 
 static int __init check_cache_coherency(void)
 {
        struct device_node *np;
        const void *prop;
-       int devtree_coherency;
+       bool devtree_coherency;
 
        np = of_find_node_by_path("/");
        prop = of_get_property(np, "coherency-off", NULL);
        of_node_put(np);
 
-       devtree_coherency = prop ? 0 : 1;
+       devtree_coherency = prop ? false : true;
 
        if (devtree_coherency != KERNEL_COHERENCY) {
                printk(KERN_ERR