Revert "Revert "module: Make module_enable_ro() static again""

This reverts commit 95a06095ff3e280f35a69858a69857c1953dfbd3 as it
should now be resolved.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I521215f77e69ac4d26d4977d2a16a40298d96509
diff --git a/include/linux/module.h b/include/linux/module.h
index 3e2a33b..b28a9eb 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -873,12 +873,6 @@ extern int module_sysfs_initialized;
 
 #define __MODULE_STRING(x) __stringify(x)
 
-#ifdef CONFIG_STRICT_MODULE_RWX
-extern void module_enable_ro(const struct module *mod, bool after_init);
-#else
-static inline void module_enable_ro(const struct module *mod, bool after_init) { }
-#endif
-
 #ifdef CONFIG_GENERIC_BUG
 void module_bug_finalize(const Elf_Ehdr *, const Elf_Shdr *,
 			 struct module *);
diff --git a/kernel/module.c b/kernel/module.c
index 76adc8e..cd21558 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2000,7 +2000,7 @@ static void frob_writable_data(const struct module_layout *layout,
 		   (layout->size - layout->ro_after_init_size) >> PAGE_SHIFT);
 }
 
-void module_enable_ro(const struct module *mod, bool after_init)
+static void module_enable_ro(const struct module *mod, bool after_init)
 {
 	if (!rodata_enabled)
 		return;
@@ -2028,6 +2028,7 @@ static void module_enable_nx(const struct module *mod)
 
 #else /* !CONFIG_STRICT_MODULE_RWX */
 static void module_enable_nx(const struct module *mod) { }
+static void module_enable_ro(const struct module *mod, bool after_init) {}
 #endif /*  CONFIG_STRICT_MODULE_RWX */
 static void module_enable_x(const struct module *mod)
 {