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authorJames Morris <jmorris@namei.org>2009-06-19 08:20:55 +1000
committerJames Morris <jmorris@namei.org>2009-06-19 08:20:55 +1000
commitd905163c5b23f6d8511971e06081a1b525e8a0bd (patch)
treef76918c1be802ec068d37763466f5518efdb690e /include/linux/compiler.h
parent44c2d9bdd7022ca7d240d5adc009296fc1c6ce08 (diff)
parent0732f87761dbe417cb6e084b712d07e879e876ef (diff)
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Merge branch 'master' into next
Diffstat (limited to 'include/linux/compiler.h')
-rw-r--r--include/linux/compiler.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 37bcb50a4d7c..04fb5135b4e1 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -261,6 +261,11 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
# define __section(S) __attribute__ ((__section__(#S)))
#endif
+/* Are two types/vars the same type (ignoring qualifiers)? */
+#ifndef __same_type
+# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
+#endif
+
/*
* Prevent the compiler from merging or refetching accesses. The compiler
* is also forbidden from reordering successive instances of ACCESS_ONCE(),