[ARM] Convert kmalloc+memset to kzalloc

[powerpc.git] / arch / arm / kernel / smp.c

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index e55ea95..02aa300 100644 (file)
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -114,7 +114,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
         * We need to tell the secondary core where to find
         * its stack and the page tables.
         */
-       secondary_data.stack = (void *)idle->thread_info + THREAD_START_SP;
+       secondary_data.stack = task_stack_page(idle) + THREAD_START_SP;
        secondary_data.pgdir = virt_to_phys(pgd);
        wmb();
 
@@ -245,7 +245,7 @@ void __cpuexit cpu_die(void)
        __asm__("mov    sp, %0\n"
        "       b       secondary_start_kernel"
                :
-               : "r" ((void *)current->thread_info + THREAD_SIZE - 8));
+               : "r" (task_stack_page(current) + THREAD_SIZE - 8));
 }
 #endif /* CONFIG_HOTPLUG_CPU */
 
@@ -256,9 +256,7 @@ void __cpuexit cpu_die(void)
 asmlinkage void __cpuinit secondary_start_kernel(void)
 {
        struct mm_struct *mm = &init_mm;
-       unsigned int cpu;
-
-       cpu = smp_processor_id();
+       unsigned int cpu = smp_processor_id();
 
        printk("CPU%u: Booted secondary processor\n", cpu);
 
@@ -340,7 +338,6 @@ void __init smp_prepare_boot_cpu(void)
 
        per_cpu(cpu_data, cpu).idle = current;
 
-       cpu_set(cpu, cpu_possible_map);
        cpu_set(cpu, cpu_present_map);
        cpu_set(cpu, cpu_online_map);
 }