diff options
Diffstat (limited to 'arch/arm64/kernel/vdso.c')
| -rw-r--r-- | arch/arm64/kernel/vdso.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c index 41f4d75bbc14..8074cbd3a3a8 100644 --- a/arch/arm64/kernel/vdso.c +++ b/arch/arm64/kernel/vdso.c @@ -74,6 +74,9 @@ static int aarch32_alloc_kuser_vdso_page(void) int kuser_sz = __kuser_helper_end - __kuser_helper_start; unsigned long vdso_page; + if (!IS_ENABLED(CONFIG_KUSER_HELPERS)) + return 0; + vdso_page = get_zeroed_page(GFP_ATOMIC); if (!vdso_page) return -ENOMEM; @@ -112,6 +115,9 @@ static int aarch32_kuser_helpers_setup(struct mm_struct *mm) { void *ret; + if (!IS_ENABLED(CONFIG_KUSER_HELPERS)) + return 0; + /* * Avoid VM_MAYWRITE for compatibility with arch/arm/, where it's * not safe to CoW the page containing the CPU exception vectors. |