[PATCH] lockdep: add is_module_address()

[linux-2.6] / include / linux / module.h

diff --git a/include/linux/module.h b/include/linux/module.h
index 9ebbb74b7b729ee8fe17a8ed783c1a3327944fb8..d06c74fb8c262a13b4e5231ae41b489ce674ba8f 100644 (file)
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -203,6 +203,15 @@ void *__symbol_get_gpl(const char *symbol);
 #define EXPORT_SYMBOL_GPL_FUTURE(sym)                          \
        __EXPORT_SYMBOL(sym, "_gpl_future")
 
+
+#ifdef CONFIG_UNUSED_SYMBOLS
+#define EXPORT_UNUSED_SYMBOL(sym) __EXPORT_SYMBOL(sym, "_unused")
+#define EXPORT_UNUSED_SYMBOL_GPL(sym) __EXPORT_SYMBOL(sym, "_unused_gpl")
+#else
+#define EXPORT_UNUSED_SYMBOL(sym)
+#define EXPORT_UNUSED_SYMBOL_GPL(sym)
+#endif
+
 #endif
 
 struct module_ref
@@ -261,6 +270,15 @@ struct module
        unsigned int num_gpl_syms;
        const unsigned long *gpl_crcs;
 
+       /* unused exported symbols. */
+       const struct kernel_symbol *unused_syms;
+       unsigned int num_unused_syms;
+       const unsigned long *unused_crcs;
+       /* GPL-only, unused exported symbols. */
+       const struct kernel_symbol *unused_gpl_syms;
+       unsigned int num_unused_gpl_syms;
+       const unsigned long *unused_gpl_crcs;
+
        /* symbols that will be GPL-only in the near future. */
        const struct kernel_symbol *gpl_future_syms;
        unsigned int num_gpl_future_syms;
@@ -340,6 +358,7 @@ static inline int module_is_live(struct module *mod)
 /* Is this address in a module? (second is with no locks, for oops) */
 struct module *module_text_address(unsigned long addr);
 struct module *__module_text_address(unsigned long addr);
+int is_module_address(unsigned long addr);
 
 /* Returns module and fills in value, defined and namebuf, or NULL if
    symnum out of range. */
@@ -456,6 +475,8 @@ void module_remove_driver(struct device_driver *);
 #define EXPORT_SYMBOL(sym)
 #define EXPORT_SYMBOL_GPL(sym)
 #define EXPORT_SYMBOL_GPL_FUTURE(sym)
+#define EXPORT_UNUSED_SYMBOL(sym)
+#define EXPORT_UNUSED_SYMBOL_GPL(sym)
 
 /* Given an address, look for it in the exception tables. */
 static inline const struct exception_table_entry *
@@ -476,6 +497,11 @@ static inline struct module *__module_text_address(unsigned long addr)
        return NULL;
 }
 
+static inline int is_module_address(unsigned long addr)
+{
+       return 0;
+}
+
 /* Get/put a kernel symbol (calls should be symmetric) */
 #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); })
 #define symbol_put(x) do { } while(0)