1 files changed, 6 insertions, 22 deletions

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index ff2299ce1ad7..a41c93988d2c 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -880,10 +880,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
 		 */
 		boot_alias_start = phys_to_idmap(start);
 		if (arm_has_idmap_alias() && boot_alias_start != IDMAP_INVALID_ADDR) {
-			res = memblock_alloc(sizeof(*res), SMP_CACHE_BYTES);
-			if (!res)
-				panic("%s: Failed to allocate %zu bytes\n",
-				      __func__, sizeof(*res));
+			res = memblock_alloc_or_panic(sizeof(*res), SMP_CACHE_BYTES);
 			res->name = "System RAM (boot alias)";
 			res->start = boot_alias_start;
 			res->end = phys_to_idmap(res_end);
@@ -891,10 +888,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
 			request_resource(&iomem_resource, res);
 		}
 
-		res = memblock_alloc(sizeof(*res), SMP_CACHE_BYTES);
-		if (!res)
-			panic("%s: Failed to allocate %zu bytes\n", __func__,
-			      sizeof(*res));
+		res = memblock_alloc_or_panic(sizeof(*res), SMP_CACHE_BYTES);
 		res->name  = "System RAM";
 		res->start = start;
 		res->end = res_end;
@@ -979,7 +973,7 @@ static int __init init_machine_late(void)
 }
 late_initcall(init_machine_late);
 
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_CRASH_RESERVE
 /*
  * The crash region must be aligned to 128MB to avoid
  * zImage relocating below the reserved region.
@@ -1066,7 +1060,7 @@ static void __init reserve_crashkernel(void)
 }
 #else
 static inline void reserve_crashkernel(void) {}
-#endif /* CONFIG_KEXEC */
+#endif /* CONFIG_CRASH_RESERVE*/
 
 void __init hyp_mode_check(void)
 {
@@ -1201,20 +1195,10 @@ void __init setup_arch(char **cmdline_p)
 		mdesc->init_early();
 }
 
-
-static int __init topology_init(void)
+bool arch_cpu_is_hotpluggable(int num)
 {
-	int cpu;
-
-	for_each_possible_cpu(cpu) {
-		struct cpuinfo_arm *cpuinfo = &per_cpu(cpu_data, cpu);
-		cpuinfo->cpu.hotpluggable = platform_can_hotplug_cpu(cpu);
-		register_cpu(&cpuinfo->cpu, cpu);
-	}
-
-	return 0;
+	return platform_can_hotplug_cpu(num);
 }
-subsys_initcall(topology_init);
 
 #ifdef CONFIG_HAVE_PROC_CPU
 static int __init proc_cpu_init(void)