[xen master] xsm/dummy: fix MISRA C 2012 Directive 4.10 violation

[patchbot@xxxxxxx]

commit 124f138b37d595294b3100349e26ffb3f1df7b13
Author:     Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
AuthorDate: Fri Jul 29 08:50:58 2022 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Jul 29 08:50:58 2022 +0200

    xsm/dummy: fix MISRA C 2012 Directive 4.10 violation
    
    Protect header file from being included more than once by adding ifndef 
guard.
    
    Signed-off-by: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
    Reviewed-by: Luca Fancellu <luca.fancellu@xxxxxxx>
    Acked-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
---
 xen/include/xsm/dummy.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/xen/include/xsm/dummy.h b/xen/include/xsm/dummy.h
index 77f27e7163..8671af1ba4 100644
--- a/xen/include/xsm/dummy.h
+++ b/xen/include/xsm/dummy.h
@@ -15,6 +15,9 @@
  *  value of action.
  */
 
+#ifndef __XEN_XSM_DUMMY_H__
+#define __XEN_XSM_DUMMY_H__
+
 #include <xen/sched.h>
 #include <xsm/xsm.h>
 #include <public/hvm/params.h>
@@ -843,3 +846,5 @@ static XSM_INLINE int cf_check xsm_domain_resource_map(
     XSM_ASSERT_ACTION(XSM_DM_PRIV);
     return xsm_default_action(action, current->domain, d);
 }
+
+#endif /* __XEN_XSM_DUMMY_H__ */
--
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