diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c
index 250dcf0c0b228fa9b17d8fa8c18dedc5e853f9f0..de91755e2556b0311d9da8327d7db4f7803b49af 100644
--- a/drivers/cpufreq/exynos4210-cpufreq.c
+++ b/drivers/cpufreq/exynos4210-cpufreq.c
@@ -114,7 +114,7 @@ static void exynos4210_set_apll(unsigned int index)
 	} while (tmp != (0x1 << EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT));
 }
 
-bool exynos4210_pms_change(unsigned int old_index, unsigned int new_index)
+static bool exynos4210_pms_change(unsigned int old_index, unsigned int new_index)
 {
 	unsigned int old_pm = apll_freq_4210[old_index].mps >> 8;
 	unsigned int new_pm = apll_freq_4210[new_index].mps >> 8;
diff --git a/drivers/cpufreq/exynos4x12-cpufreq.c b/drivers/cpufreq/exynos4x12-cpufreq.c
index 224445d3fd4f2a0406a6e273f860ed43d99bb9a7..0661039e5d4a709d6422f76fd819c7b45be0785e 100644
--- a/drivers/cpufreq/exynos4x12-cpufreq.c
+++ b/drivers/cpufreq/exynos4x12-cpufreq.c
@@ -166,7 +166,7 @@ static void exynos4x12_set_apll(unsigned int index)
 	} while (tmp != (0x1 << EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT));
 }
 
-bool exynos4x12_pms_change(unsigned int old_index, unsigned int new_index)
+static bool exynos4x12_pms_change(unsigned int old_index, unsigned int new_index)
 {
 	unsigned int old_pm = apll_freq_4x12[old_index].mps >> 8;
 	unsigned int new_pm = apll_freq_4x12[new_index].mps >> 8;
diff --git a/drivers/cpufreq/exynos5250-cpufreq.c b/drivers/cpufreq/exynos5250-cpufreq.c
index 736a5cfdfd17709b0788b085bb7888f41a244a46..b9344869f822a5bf4845337a60bc5d60afb7412d 100644
--- a/drivers/cpufreq/exynos5250-cpufreq.c
+++ b/drivers/cpufreq/exynos5250-cpufreq.c
@@ -143,7 +143,7 @@ static void set_apll(unsigned int new_index,
 
 }
 
-bool exynos5250_pms_change(unsigned int old_index, unsigned int new_index)
+static bool exynos5250_pms_change(unsigned int old_index, unsigned int new_index)
 {
 	unsigned int old_pm = apll_freq_5250[old_index].mps >> 8;
 	unsigned int new_pm = apll_freq_5250[new_index].mps >> 8;