[PATCH] kernel/modules: fix build without ARCH_HAS_STRICT_MODULE_RWX

[Max Filippov <jcmvbkbc@gmail.com>]

On configurations with CONFIG_ARCH_HAS_STRICT_MODULE_RWX disabled kernel
build fails with the following message:

  kernel/module.c:3593:2: error: implicit declaration of function
  ‘module_enable_ro’;

Add empty module_enable_ro definition to fix the build.

Fixes: e6eff4376e28 ("module: Make module_enable_ro() static again")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
 kernel/module.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/module.c b/kernel/module.c
index bca993c5f1bc..a74a29001814 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2038,6 +2038,7 @@ static void module_enable_x(const struct module *mod)
 #else /* !CONFIG_ARCH_HAS_STRICT_MODULE_RWX */
 static void module_enable_nx(const struct module *mod) { }
 static void module_enable_x(const struct module *mod) { }
+static void module_enable_ro(const struct module *mod, bool after_init) {}
 #endif /* CONFIG_ARCH_HAS_STRICT_MODULE_RWX */
 
 
-- 
2.20.1