[xen staging] xen/nospec: Include <xen/stdbool.h>

[patchbot@xxxxxxx]

commit d2276b86e5eb8dd2617d917f7b49cdd1f29ac299
Author:     Michal Orzel <michal.orzel@xxxxxxx>
AuthorDate: Tue Mar 19 11:30:30 2024 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Mar 19 11:30:30 2024 +0100

    xen/nospec: Include <xen/stdbool.h>
    
    After introduction of lock_evaluate_nospec() using bool type, building
    Xen on Arm with UBSAN enabled fails:
    
    In file included from ./include/xen/spinlock.h:4,
                     from common/ubsan/ubsan.c:13:
    ./include/xen/nospec.h:79:22: error: unknown type name â??boolâ??
       79 | static always_inline bool lock_evaluate_nospec(bool condition)
    
    There is no issue on x86, as xen/stdbool.h is included somewhere along
    the asm/nospec.h path, which is not the case for other architectures.
    
    Fixes: 7ef0084418e1 ("x86/spinlock: introduce support for blocking 
speculation into critical regions")
    Signed-off-by: Michal Orzel <michal.orzel@xxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/include/xen/nospec.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/include/xen/nospec.h b/xen/include/xen/nospec.h
index e8d73f9538..9fb15aa26a 100644
--- a/xen/include/xen/nospec.h
+++ b/xen/include/xen/nospec.h
@@ -7,6 +7,8 @@
 #ifndef XEN_NOSPEC_H
 #define XEN_NOSPEC_H
 
+#include <xen/stdbool.h>
+
 #include <asm/nospec.h>
 
 /**
--
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