diff options
| author | Jinbum Park <jinb.park7@gmail.com> | 2017-12-12 01:25:30 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2017-12-17 23:16:20 +0100 |
| commit | 6fbab054eccd14480d0c0805cab80db08e0fb3ee (patch) | |
| tree | 87de3a8a5c6bbea148668bd2e496b1790bca1ff8 /arch | |
| parent | ARM: 8733/1: hw_breakpoint: Mark variables as __ro_after_init (diff) | |
| download | linux-6fbab054eccd14480d0c0805cab80db08e0fb3ee.tar.xz linux-6fbab054eccd14480d0c0805cab80db08e0fb3ee.zip | |
ARM: 8734/1: mm: idmap: Mark variables as ro_after_init
idmap_pgd, arch_phys_to_idmap_offset are setup once
while init stage, and never changed after that.
so, it is good candidate for __ro_after_init.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mm/idmap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mm/idmap.c b/arch/arm/mm/idmap.c index 10bfba85eb96..1d1edd064199 100644 --- a/arch/arm/mm/idmap.c +++ b/arch/arm/mm/idmap.c @@ -16,8 +16,8 @@ * are not supported on any CPU using the idmap tables as its current * page tables. */ -pgd_t *idmap_pgd; -long long arch_phys_to_idmap_offset; +pgd_t *idmap_pgd __ro_after_init; +long long arch_phys_to_idmap_offset __ro_after_init; #ifdef CONFIG_ARM_LPAE static void idmap_add_pmd(pud_t *pud, unsigned long addr, unsigned long end, |