Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull core fixes from Ingo Molnar:
 "A handful of objtool updates, plus a documentation addition for
  __ab_c_size()"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix whitelist documentation typo
  objtool: Fix function fallthrough detection
  objtool: Don't use ignore flag for fake jumps
  overflow.h: Add comment documenting __ab_c_size()

1 files changed, 6 insertions, 2 deletions

diff --git a/include/linux/overflow.h b/include/linux/overflow.h
index 15eb85de9226..659045046468 100644
--- a/include/linux/overflow.h
+++ b/include/linux/overflow.h
@@ -284,11 +284,15 @@ static inline __must_check size_t array3_size(size_t a, size_t b, size_t c)
         return bytes;
 }
 
-static inline __must_check size_t __ab_c_size(size_t n, size_t size, size_t c)
+/*
+ * Compute a*b+c, returning SIZE_MAX on overflow. Internal helper for
+ * struct_size() below.
+ */
+static inline __must_check size_t __ab_c_size(size_t a, size_t b, size_t c)
 {
         size_t bytes;
 
-        if (check_mul_overflow(n, size, &bytes))
+        if (check_mul_overflow(a, b, &bytes))
                 return SIZE_MAX;
         if (check_add_overflow(bytes, c, &bytes))
                 return SIZE_MAX;