diff --git a/os/linux/driver.c b/os/linux/driver.c
index b90018e..bf7b6af 100644
--- a/os/linux/driver.c
+++ b/os/linux/driver.c
@@ -66,7 +66,7 @@ static bool tegra_hwpm_read_support_soc_tools_prop(struct platform_device *pdev)
 	return allow_node;
 }
 
-int tegra_hwpm_init_chip_info(struct tegra_hwpm_os_linux *hwpm_linux)
+static int tegra_hwpm_init_chip_info(struct tegra_hwpm_os_linux *hwpm_linux)
 {
 	hwpm_linux->device_info.chip = tegra_get_chip_id();
 	hwpm_linux->device_info.chip_revision = tegra_get_major_rev();
diff --git a/os/linux/io_utils.h b/os/linux/io_utils.h
index 9ae59ad..f6d369e 100644
--- a/os/linux/io_utils.h
+++ b/os/linux/io_utils.h
@@ -31,4 +31,4 @@ int tegra_hwpm_regops_writel_impl(struct tegra_soc_hwpm *hwpm,
 	struct hwpm_ip_inst *ip_inst, struct hwpm_ip_aperture *aperture,
 	u64 addr, u32 val);
 
-#endif /* TEGRA_HWPM_OS_LINUX_IO_UTILS_H */
\ No newline at end of file
+#endif /* TEGRA_HWPM_OS_LINUX_IO_UTILS_H */
diff --git a/os/linux/regops_utils.h b/os/linux/regops_utils.h
index afeb658..8383933 100644
--- a/os/linux/regops_utils.h
+++ b/os/linux/regops_utils.h
@@ -20,4 +20,4 @@ struct tegra_soc_hwpm_exec_reg_ops;
 int tegra_hwpm_exec_regops(struct tegra_soc_hwpm *hwpm,
 	struct tegra_soc_hwpm_exec_reg_ops *exec_reg_ops);
 
-#endif /* TEGRA_HWPM_OS_LINUX_REGOPS_UTILS_H */
\ No newline at end of file
+#endif /* TEGRA_HWPM_OS_LINUX_REGOPS_UTILS_H */