1 files changed, 15 insertions, 3 deletions

diff --git a/include/linux/kmemcheck.h b/include/linux/kmemcheck.h
index 47b39b7c7e84..e880d4cf9e22 100644
--- a/include/linux/kmemcheck.h
+++ b/include/linux/kmemcheck.h
@@ -34,6 +34,8 @@ void kmemcheck_mark_initialized_pages(struct page *p, unsigned int n);
 int kmemcheck_show_addr(unsigned long address);
 int kmemcheck_hide_addr(unsigned long address);
 
+bool kmemcheck_is_obj_initialized(unsigned long addr, size_t size);
+
 #else
 #define kmemcheck_enabled 0
 
@@ -99,6 +101,11 @@ static inline void kmemcheck_mark_initialized_pages(struct page *p,
 {
 }
 
+static inline bool kmemcheck_is_obj_initialized(unsigned long addr, size_t size)
+{
+        return true;
+}
+
 #endif /* CONFIG_KMEMCHECK */
 
 /*
@@ -137,10 +144,15 @@ static inline void kmemcheck_mark_initialized_pages(struct page *p,
         int name##_end[0];
 
 #define kmemcheck_annotate_bitfield(ptr, name)                          \
-        do if (ptr) {                                                   \
-                int _n = (long) &((ptr)->name##_end)                    \
+        do {                                                            \
+                int _n;                                                 \
+                                                                        \
+                if (!ptr)                                               \
+                        break;                                          \
+                                                                        \
+                _n = (long) &((ptr)->name##_end)                        \
                         - (long) &((ptr)->name##_begin);                \
-                BUILD_BUG_ON(_n < 0);                                   \
+                MAYBE_BUILD_BUG_ON(_n < 0);                             \
                                                                         \
                 kmemcheck_mark_initialized(&((ptr)->name##_begin), _n); \
         } while (0)