mm: expose arch_mmap_rnd when available

[mirror_ubuntu-zesty-kernel.git] / arch / arm / mm / mmap.c

diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 15a8160096b34127be8a7193097dddd17770e72c..407dc786583aec0e6077f50a8374f99002ca8233 100644 (file)
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -169,7 +169,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
        return addr;
 }
 
-static unsigned long mmap_rnd(void)
+unsigned long arch_mmap_rnd(void)
 {
        unsigned long rnd;
 
@@ -184,7 +184,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
        unsigned long random_factor = 0UL;
 
        if (current->flags & PF_RANDOMIZE)
-               random_factor = mmap_rnd();
+               random_factor = arch_mmap_rnd();
 
        if (mmap_is_legacy()) {
                mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;