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29 lines
858 B
Diff
29 lines
858 B
Diff
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From d81d24b9d4c897c508799cb390b13cb018758709 Mon Sep 17 00:00:00 2001
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From: Benjamin Valentin <benpicco@zedat.fu-berlin.de>
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Date: Fri, 10 Oct 2014 02:05:01 +0200
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Subject: [PATCH] only define container_of when necessary
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---
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src-api/common/container_of.h | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/src-api/common/container_of.h b/src-api/common/container_of.h
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index 9fd1893..fcb38fe 100644
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--- a/src-api/common/container_of.h
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+++ b/src-api/common/container_of.h
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@@ -58,10 +58,12 @@
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* @param member name of node inside struct
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* @return pointer to surrounding struct
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*/
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+#ifndef container_of
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#define container_of(ptr, type, member) ({ \
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const typeof(((type *)0)->member ) *__tempptr = (ptr); \
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(type *)((char *)__tempptr - offsetof(type,member)); \
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})
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+#endif
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/**
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* Helper function for NULL safe container_of macro
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--
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1.9.1
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