arm64: remove dead-code depending on CONFIG_UP_LATE_INIT

Commit 4b3dc9679cf7 ("arm64: force CONFIG_SMP=y and remove redundant
and therfore can not be selected anymore.

Remove dead #ifdef-block depending on UP_LATE_INIT in
arch/arm64/kernel/setup.c

Signed-off-by: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
[will: kill do_post_cpus_up_work altogether]
Signed-off-by: Will Deacon <will.deacon@arm.com>

arch/arm64/include/asm/smp_plat.h

@@ -56,6 +56,4 @@ static inline int get_logical_index(u64 mpidr)
 	return -EINVAL;
 }
 
-void __init do_post_cpus_up_work(void);
-
 #endif /* __ASM_SMP_PLAT_H */

arch/arm64/kernel/setup.c

@@ -63,7 +63,6 @@
 #include <asm/memblock.h>
 #include <asm/psci.h>
 #include <asm/efi.h>
-#include <asm/virt.h>
 #include <asm/xen/hypervisor.h>
 
 unsigned long elf_hwcap __read_mostly;
@@ -197,30 +196,6 @@ static void __init smp_build_mpidr_hash(void)
 	__flush_dcache_area(&mpidr_hash, sizeof(struct mpidr_hash));
 }
 
-static void __init hyp_mode_check(void)
-{
-	if (is_hyp_mode_available())
-		pr_info("CPU: All CPU(s) started at EL2\n");
-	else if (is_hyp_mode_mismatched())
-		WARN_TAINT(1, TAINT_CPU_OUT_OF_SPEC,
-			   "CPU: CPUs started in inconsistent modes");
-	else
-		pr_info("CPU: All CPU(s) started at EL1\n");
-}
-
-void __init do_post_cpus_up_work(void)
-{
-	hyp_mode_check();
-	apply_alternatives_all();
-}
-
-#ifdef CONFIG_UP_LATE_INIT
-void __init up_late_init(void)
-{
-	do_post_cpus_up_work();
-}
-#endif /* CONFIG_UP_LATE_INIT */
-
 static void __init setup_processor(void)
 {
 	u64 features;

arch/arm64/kernel/smp.c

@@ -52,6 +52,7 @@
 #include <asm/sections.h>
 #include <asm/tlbflush.h>
 #include <asm/ptrace.h>
+#include <asm/virt.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/ipi.h>
@@ -310,10 +311,22 @@ void cpu_die(void)
 }
 #endif
 
+static void __init hyp_mode_check(void)
+{
+	if (is_hyp_mode_available())
+		pr_info("CPU: All CPU(s) started at EL2\n");
+	else if (is_hyp_mode_mismatched())
+		WARN_TAINT(1, TAINT_CPU_OUT_OF_SPEC,
+			   "CPU: CPUs started in inconsistent modes");
+	else
+		pr_info("CPU: All CPU(s) started at EL1\n");
+}
+
 void __init smp_cpus_done(unsigned int max_cpus)
 {
 	pr_info("SMP: Total of %d processors activated.\n", num_online_cpus());
-	do_post_cpus_up_work();
+	hyp_mode_check();
+	apply_alternatives_all();
 }
 
 void __init smp_prepare_boot_cpu(void)