ARM: nommu: do not initialise page tables in secondary_data structure

nommu systems do not require any page tables, so don't try to initialise
them when bringing up secondary cores.

Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 550d63c..44d1c00 100644 (file)
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -87,8 +87,10 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle)
         * its stack and the page tables.
         */
        secondary_data.stack = task_stack_page(idle) + THREAD_START_SP;
+#ifdef CONFIG_MMU
        secondary_data.pgdir = virt_to_phys(idmap_pgd);
        secondary_data.swapper_pg_dir = virt_to_phys(swapper_pg_dir);
+#endif
        __cpuc_flush_dcache_area(&secondary_data, sizeof(secondary_data));
        outer_clean_range(__pa(&secondary_data), __pa(&secondary_data + 1));