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From:   Josh Poimboeuf <jpoimboe@redhat.com>
To:     live-patching@vger.kernel.org
Cc:     linux-kernel@vger.kernel.org,
        Peter Zijlstra <peterz@infradead.org>,
        Jessica Yu <jeyu@kernel.org>,
        Joe Lawrence <joe.lawrence@redhat.com>
Subject: [PATCH v3 09/10] module: Remove module_disable_ro()
Date:   Sat, 25 Apr 2020 06:07:29 -0500
Message-Id: <33089a8ffb2e724cecfa51d72887ae9bf70354f9.1587812518.git.jpoimboe@redhat.com>
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module_disable_ro() has no more users.  Remove it.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 include/linux/module.h |  2 --
 kernel/module.c        | 13 -------------
 2 files changed, 15 deletions(-)

diff --git a/include/linux/module.h b/include/linux/module.h
index 1ad393e62bef..e4ef7b36feda 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -860,10 +860,8 @@ extern int module_sysfs_initialized;
=20
 #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
=20
 #ifdef CONFIG_GENERIC_BUG
diff --git a/kernel/module.c b/kernel/module.c
index 96b2575329f4..f0e414a01d91 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2016,19 +2016,6 @@ static void frob_writable_data(const struct module=
_layout *layout,
 		   (layout->size - layout->ro_after_init_size) >> PAGE_SHIFT);
 }
=20
-/* 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)
--=20
2.21.1