xen/balloon: add header guard
In order to protect against the header being included multiple times on the same compilation unit. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20200901083326.21264-2-roger.pau@citrix.com Signed-off-by: Juergen Gross <jgross@suse.com>
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@ -2,6 +2,8 @@
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/******************************************************************************
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/******************************************************************************
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* Xen balloon functionality
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* Xen balloon functionality
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*/
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*/
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#ifndef _XEN_BALLOON_H
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#define _XEN_BALLOON_H
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#define RETRY_UNLIMITED 0
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#define RETRY_UNLIMITED 0
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@ -34,3 +36,5 @@ static inline void xen_balloon_init(void)
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{
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{
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}
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}
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#endif
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#endif
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#endif /* _XEN_BALLOON_H */
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