Commit-ID: 1fcb01fa2d408e520816bfec5643e9bd0d20d0f3
Gitweb: http://git.kernel.org/tip/1fcb01fa2d408e520816bfec5643e9bd0d20d0f3
Author: Vegard Nossum <vegard.nossum@xxxxxxxxx>
AuthorDate: Sat, 28 Feb 2009 08:27:35 +0100
Commit: Vegard Nossum <vegard.nossum@xxxxxxxxx>
CommitDate: Sat, 28 Feb 2009 08:27:35 +0100
kmemcheck: bitfields: introduce hack to work around gcc bug
gcc doesn't allow anonymous union + variable-sized array as the
only members in a struct. Apparently, anonymous unions were never
quite kosher anyway (a gcc extension), but this hack works around
it. This is needed for an annotation in the ftrace framework.
Signed-off-by: Vegard Nossum <vegard.nossum@xxxxxxxxx>
---
include/linux/kmemcheck.h | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/include/linux/kmemcheck.h b/include/linux/kmemcheck.h
index 54c053b..bc88808 100644
--- a/include/linux/kmemcheck.h
+++ b/include/linux/kmemcheck.h
@@ -34,7 +34,14 @@
union { \
struct fields name; \
struct fields; \
- };
+ }; \
+ \
+ /* \
+ * Erk. Due to gcc bug, we'll get a "error: \
+ * flexible array member in otherwise empty \
+ * struct without this. \
+ */ \
+ int kmemcheck_dummy_##name##_[0];
#ifdef CONFIG_KMEMCHECK
extern int kmemcheck_enabled;
--
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