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ARM: 8595/2: apply more __ro_after_init

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Guided by grsecurity's analogous __read_only markings in arch/arm,
this applies several uses of __ro_after_init to structures that are
only updated during __init.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Kees Cook 2016-08-10 22:46:49 +01:00 committed by Russell King
parent d782e426b8
commit 7619751f8c
5 changed files with 9 additions and 9 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

2
arch/arm/kernel/cpuidle.c
View file

@ -19,7 +19,7 @@ extern struct of_cpuidle_method __cpuidle_method_of_table[];
static const struct of_cpuidle_method __cpuidle_method_of_table_sentinel
__used __section(__cpuidle_method_of_table_end);
static struct cpuidle_ops cpuidle_ops[NR_CPUS];
static struct cpuidle_ops cpuidle_ops[NR_CPUS] __ro_after_init;
/**
* arm_cpuidle_simple_enter() - a wrapper to cpu_do_idle()

10
arch/arm/kernel/setup.c
View file

@ -114,19 +114,19 @@ EXPORT_SYMBOL(elf_hwcap2);
#ifdef MULTI_CPU
struct processor processor __read_mostly;
struct processor processor __ro_after_init;
#endif
#ifdef MULTI_TLB
struct cpu_tlb_fns cpu_tlb __read_mostly;
struct cpu_tlb_fns cpu_tlb __ro_after_init;
#endif
#ifdef MULTI_USER
struct cpu_user_fns cpu_user __read_mostly;
struct cpu_user_fns cpu_user __ro_after_init;
#endif
#ifdef MULTI_CACHE
struct cpu_cache_fns cpu_cache __read_mostly;
struct cpu_cache_fns cpu_cache __ro_after_init;
#endif
#ifdef CONFIG_OUTER_CACHE
struct outer_cache_fns outer_cache __read_mostly;
struct outer_cache_fns outer_cache __ro_after_init;
EXPORT_SYMBOL(outer_cache);
#endif

2
arch/arm/kernel/smp.c
View file

@ -82,7 +82,7 @@ enum ipi_msg_type {
static DECLARE_COMPLETION(cpu_running);
static struct smp_operations smp_ops;
static struct smp_operations smp_ops __ro_after_init;
void __init smp_set_ops(const struct smp_operations *ops)
{

2
arch/arm/lib/delay.c
View file

@ -29,7 +29,7 @@
/*
* Default to the loop-based delay implementation.
*/
struct arm_delay_ops arm_delay_ops = {
struct arm_delay_ops arm_delay_ops __ro_after_init = {
.delay = __loop_delay,
.const_udelay = __loop_const_udelay,
.udelay = __loop_udelay,

2
arch/arm/mm/mmu.c
View file

@ -243,7 +243,7 @@ __setup("noalign", noalign_setup);
#define PROT_PTE_S2_DEVICE PROT_PTE_DEVICE
#define PROT_SECT_DEVICE PMD_TYPE_SECT|PMD_SECT_AP_WRITE
static struct mem_type mem_types[] = {
static struct mem_type mem_types[] __ro_after_init = {
[MT_DEVICE] = { /* Strongly ordered / ARMv6 shared device */
.prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_SHARED |
L_PTE_SHARED,