UPSTREAM: arm64: vdso: constify vm_special_mapping used for aarch32 vectors page

(cherry pick from commit b6d081bddf397026575a437b603b118dff2606ff)

The vm_special_mapping spec which is used for aarch32 vectors page is
never modified, so mark it as const.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Bug: 20045882
Bug: 19198045
Change-Id: If1afd11bfeefee45a2b96634b18143937a773a14

diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index 0949b48..3b8acfa 100644 (file)
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -88,7 +88,7 @@ int aarch32_setup_vectors_page(struct linux_binprm *bprm, int uses_interp)
 {
        struct mm_struct *mm = current->mm;
        unsigned long addr = AARCH32_VECTORS_BASE;
-       static struct vm_special_mapping spec = {
+       static const struct vm_special_mapping spec = {
                .name   = "[vectors]",
                .pages  = vectors_page,