From 0d9fbf78fefb421a3af97394ce80bba0db4f046a Mon Sep 17 00:00:00 2001 From: Josh Poimboeuf Date: Wed, 29 Apr 2020 10:24:51 -0500 Subject: [PATCH] module: Remove module_disable_ro() module_disable_ro() has no more users. Remove it. Signed-off-by: Josh Poimboeuf Acked-by: Peter Zijlstra (Intel) Acked-by: Joe Lawrence Acked-by: Miroslav Benes Acked-by: Jessica Yu Signed-off-by: Jiri Kosina --- 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; #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 index fdd9f6970e9a..3ba024afe379 100644 --- 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)