ARM: EXYNOS: Annotate iomem and pm_data pointers __ro_after_init

The pointers to __iomem sysram and exynos_pm_data are set only during
initcalls.  Later the pointers itself are used only in read-only way so
we can mark them __ro_after_init to increase code safeness.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

3 files changed, 4 insertions, 4 deletions

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 757fc11de30d..35b832f4bc7e 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -45,8 +45,8 @@ static struct platform_device exynos_cpuidle = {
         .id                = -1,
 };
 
-void __iomem *sysram_base_addr;
-void __iomem *sysram_ns_base_addr;
+void __iomem *sysram_base_addr __ro_after_init;
+void __iomem *sysram_ns_base_addr __ro_after_init;
 
 void __init exynos_sysram_init(void)
 {
diff --git a/arch/arm/mach-exynos/mcpm-exynos.c b/arch/arm/mach-exynos/mcpm-exynos.c
index f086bf615b29..038fd8c993d0 100644
--- a/arch/arm/mach-exynos/mcpm-exynos.c
+++ b/arch/arm/mach-exynos/mcpm-exynos.c
@@ -32,7 +32,7 @@
 #define EXYNOS5420_USE_ARM_CORE_DOWN_STATE      BIT(29)
 #define EXYNOS5420_USE_L2_COMMON_UP_STATE       BIT(30)
 
-static void __iomem *ns_sram_base_addr;
+static void __iomem *ns_sram_base_addr __ro_after_init;
 
 /*
  * The common v7_exit_coherency_flush API could not be used because of the
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index be29f06d04f1..518420241062 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -66,7 +66,7 @@ struct exynos_pm_data {
         int (*cpu_suspend)(unsigned long);
 };
 
-static const struct exynos_pm_data *pm_data;
+static const struct exynos_pm_data *pm_data __ro_after_init;
 
 static int exynos5420_cpu_state;
 static unsigned int exynos_pmu_spare3;