3 files changed, 26 insertions, 20 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 6d9df3f7e334..93230e97e897 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -455,6 +455,7 @@ int ftrace_update_record(struct dyn_ftrace *rec, int enable);
 int ftrace_test_record(struct dyn_ftrace *rec, int enable);
 void ftrace_run_stop_machine(int command);
 unsigned long ftrace_location(unsigned long ip);
+unsigned long ftrace_location_range(unsigned long start, unsigned long end);
 unsigned long ftrace_get_addr_new(struct dyn_ftrace *rec);
 unsigned long ftrace_get_addr_curr(struct dyn_ftrace *rec);
 
diff --git a/include/linux/livepatch.h b/include/linux/livepatch.h
index 90843ccb7852..a93a0b23dc8d 100644
--- a/include/linux/livepatch.h
+++ b/include/linux/livepatch.h
@@ -65,27 +65,8 @@ struct klp_func {
 };
 
 /**
- * struct klp_reloc - relocation structure for live patching
- * @loc:	address where the relocation will be written
- * @sympos:	position in kallsyms to disambiguate symbols (optional)
- * @type:	ELF relocation type
- * @name:	name of the referenced symbol (for lookup/verification)
- * @addend:	offset from the referenced symbol
- * @external:	symbol is either exported or within the live patch module itself
- */
-struct klp_reloc {
-	unsigned long loc;
-	unsigned long sympos;
-	unsigned long type;
-	const char *name;
-	int addend;
-	int external;
-};
-
-/**
  * struct klp_object - kernel object structure for live patching
  * @name:	module name (or NULL for vmlinux)
- * @relocs:	relocation entries to be applied at load time
  * @funcs:	function entries for functions to be patched in the object
  * @kobj:	kobject for sysfs resources
  * @mod:	kernel module associated with the patched object
@@ -95,7 +76,6 @@ struct klp_reloc {
 struct klp_object {
 	/* external */
 	const char *name;
-	struct klp_reloc *relocs;
 	struct klp_func *funcs;
 
 	/* internal */
diff --git a/include/linux/module.h b/include/linux/module.h
index 2bb0c3085706..3daf2b3a09d2 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -330,6 +330,15 @@ struct mod_kallsyms {
 	char *strtab;
 };
 
+#ifdef CONFIG_LIVEPATCH
+struct klp_modinfo {
+	Elf_Ehdr hdr;
+	Elf_Shdr *sechdrs;
+	char *secstrings;
+	unsigned int symndx;
+};
+#endif
+
 struct module {
 	enum module_state state;
 
@@ -456,7 +465,11 @@ struct module {
 #endif
 
 #ifdef CONFIG_LIVEPATCH
+	bool klp; /* Is this a livepatch module? */
 	bool klp_alive;
+
+	/* Elf information */
+	struct klp_modinfo *klp_info;
 #endif
 
 #ifdef CONFIG_MODULE_UNLOAD
@@ -630,6 +643,18 @@ static inline bool module_requested_async_probing(struct module *module)
 	return module && module->async_probe_requested;
 }
 
+#ifdef CONFIG_LIVEPATCH
+static inline bool is_livepatch_module(struct module *mod)
+{
+	return mod->klp;
+}
+#else /* !CONFIG_LIVEPATCH */
+static inline bool is_livepatch_module(struct module *mod)
+{
+	return false;
+}
+#endif /* CONFIG_LIVEPATCH */
+
 #else /* !CONFIG_MODULES... */
 
 /* Given an address, look for it in the exception tables. */