module: Use __module_address() for module_address_lookup()

Use the generic __module_address() addr to struct module lookup
instead of open coding it once more.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 7 insertions, 10 deletions

diff --git a/kernel/module.c b/kernel/module.c
index ac3044ceca3f..293dfaf4ce52 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3671,19 +3671,15 @@ const char *module_address_lookup(unsigned long addr,
                             char **modname,
                             char *namebuf)
 {
-        struct module *mod;
         const char *ret = NULL;
+        struct module *mod;
 
         preempt_disable();
-        list_for_each_entry_rcu(mod, &modules, list) {
-                if (mod->state == MODULE_STATE_UNFORMED)
-                        continue;
-                if (within_module(addr, mod)) {
-                        if (modname)
-                                *modname = mod->name;
-                        ret = get_ksymbol(mod, addr, size, offset);
-                        break;
-                }
+        mod = __module_address(addr);
+        if (mod) {
+                if (modname)
+                        *modname = mod->name;
+                ret = get_ksymbol(mod, addr, size, offset);
         }
         /* Make a copy in here where it's safe */
         if (ret) {
@@ -3691,6 +3687,7 @@ const char *module_address_lookup(unsigned long addr,
                 ret = namebuf;
         }
         preempt_enable();
+
         return ret;
 }