module: Remove module_disable_ro()

module_disable_ro() has no more users. Remove it. Signed-off-by: Josh Poimboeuf <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Acked-by: Joe Lawrence <[email protected]> Acked-by: Miroslav Benes <[email protected]> Acked-by: Jessica Yu <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
bobolmw · May 7, 2020 · 0d9fbf7 · 0d9fbf7
1 parent d556e1b
commit 0d9fbf7
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diff --git a/include/linux/module.h b/include/linux/module.h
@@ -860,10 +860,8 @@ extern int module_sysfs_initialized;
 
 #ifdef CONFIG_STRICT_MODULE_RWX
 extern void module_enable_ro(const struct module *mod, bool after_init);
-extern void module_disable_ro(const struct module *mod);
 #else
 static inline void module_enable_ro(const struct module *mod, bool after_init) { }
-static inline void module_disable_ro(const struct module *mod) { }
 #endif
 
 #ifdef CONFIG_GENERIC_BUG

diff --git a/kernel/module.c b/kernel/module.c
@@ -1997,19 +1997,6 @@ static void frob_writable_data(const struct module_layout *layout,
 		   (layout->size - layout->ro_after_init_size) >> PAGE_SHIFT);
 }
 
-/* livepatching wants to disable read-only so it can frob module. */
-void module_disable_ro(const struct module *mod)
-{
-	if (!rodata_enabled)
-		return;
-
-	frob_text(&mod->core_layout, set_memory_rw);
-	frob_rodata(&mod->core_layout, set_memory_rw);
-	frob_ro_after_init(&mod->core_layout, set_memory_rw);
-	frob_text(&mod->init_layout, set_memory_rw);
-	frob_rodata(&mod->init_layout, set_memory_rw);
-}
-
 void module_enable_ro(const struct module *mod, bool after_init)
 {
 	if (!rodata_enabled)