common: Move check_member() to kernel.h
The kernel.h file has a number of useful macros including a few related to structures. Move check_member() there too. Signed-off-by: Simon Glass <sjg@chromium.org>
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@@ -268,4 +268,15 @@
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const typeof( ((type *)0)->member ) *__mptr = (ptr); \
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(type *)( (char *)__mptr - offsetof(type,member) );})
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/*
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* check_member() - Check the offset of a structure member
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*
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* @structure: Name of structure (e.g. global_data)
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* @member: Name of member (e.g. baudrate)
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* @offset: Expected offset in bytes
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*/
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#define check_member(structure, member, offset) _Static_assert( \
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offsetof(struct structure, member) == (offset), \
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"`struct " #structure "` offset for `" #member "` is not " #offset)
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#endif
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