On Mon, Mar 02, 2015 at 04:19:45PM -0800, Kees Cook wrote:
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 9f1f09a2bc9b..248d99cabaa8 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -3,6 +3,7 @@ config ARM
> default y
> select ARCH_BINFMT_ELF_RANDOMIZE_PIE
> select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
> + select ARCH_HAS_ELF_RANDOMIZE
> select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
> select ARCH_HAVE_CUSTOM_GPIO_H
> select ARCH_HAS_GCOV_PROFILE_ALL
> diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
> index 0f8bc158f2c6..3c1fedb034bb 100644
> --- 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 = 0UL;
>
> @@ -183,7 +183,7 @@ static unsigned long mmap_rnd(void)
>
> void arch_pick_mmap_layout(struct mm_struct *mm)
> {
> - unsigned long random_factor = mmap_rnd();
> + unsigned long random_factor = arch_mmap_rnd();
>
> if (mmap_is_legacy()) {
> mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
For the above,
Acked-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
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