[PATCH v4 11/11] module: Make module_enable_ro() static again

Josh Poimboeuf
2020-04-29T15:25:31Z

Now that module_enable_ro() has no more external users, make it static
again.

Suggested-by: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
---
include/linux/module.h | 6 ------
kernel/module.c | 4 ++--
2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/include/linux/module.h b/include/linux/module.h
index e4ef7b36feda..2c2e988bcf10 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -858,12 +858,6 @@ 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 f0e414a01d91..572d626508d2 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2016,7 +2016,7 @@ 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;
@@ -2057,7 +2057,7 @@ static int module_enforce_rwx_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
}

#else /* !CONFIG_STRICT_MODULE_RWX */
-/* module_{enable,disable}_ro() stubs are in module.h */
+static void module_enable_ro(const struct module *mod, bool after_init) {}
static void module_enable_nx(const struct module *mod) { }
static int module_enforce_rwx_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
char *secstrings, struct module *mod)
--
2.21.1