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authorKrzysztof Kozlowski <krzk@kernel.org>2016-12-10 16:47:33 +0300
committerKrzysztof Kozlowski <krzk@kernel.org>2016-12-29 16:28:55 +0300
commit731d97c236833c2179ce6fe7a5eb32c46f71df27 (patch)
treeb02a0c9532b2b7f1b2a9fd3a2ec315e2d086e94f
parentb4765037fc8c392027e604cf05771f0ac2790303 (diff)
downloadlinux-731d97c236833c2179ce6fe7a5eb32c46f71df27.tar.xz
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>
-rw-r--r--arch/arm/mach-exynos/exynos.c4
-rw-r--r--arch/arm/mach-exynos/mcpm-exynos.c2
-rw-r--r--arch/arm/mach-exynos/suspend.c2
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;