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[PATCH 29/44] compat/2.6.22: rework `uninitialized_var' and `__maybe_unused' macros

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Protect their definitions, and add fallbacks.

Signed-off-by: Arnaud Lacombe <lacombar@xxxxxxxxx>
---
 include/linux/compat-2.6.22.h |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/include/linux/compat-2.6.22.h b/include/linux/compat-2.6.22.h
index 7ca1b18..174a269 100644
--- a/include/linux/compat-2.6.22.h
+++ b/include/linux/compat-2.6.22.h
@@ -80,9 +80,18 @@ static inline void skb_copy_from_linear_data_offset(const struct sk_buff *skb,
 	memcpy(to, skb->data + offset, len);
 }
 
-#define __maybe_unused	__attribute__((unused))
+#if defined(__GNUC__)
+#define __maybe_unused		__attribute__((unused))
+#define uninitialized_var(x)	x = x
+#endif
+
+#ifndef __maybe_unused
+#define __maybe_unused		/* unimplemented */
+#endif
 
-#define uninitialized_var(x) x = x
+#ifndef uninitialized_var
+#define uninitialized_var(x)	x
+#endif
 
 /* This will lead to very weird behaviour... */
 #define NLA_BINARY NLA_STRING
-- 
1.7.2.30.gc37d7.dirty

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