[xen staging] xen/page_alloc: address violations of MISRA C Rule 20.7

[patchbot@xxxxxxx]

commit e2eeb1b753bb90865c05948f7836f119e12ceb0e
Author:     Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
AuthorDate: Wed Mar 27 09:12:06 2024 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Mar 27 09:12:06 2024 +0100

    xen/page_alloc: address violations of MISRA C Rule 20.7
    
    MISRA C Rule 20.7 states: "Expressions resulting from the expansion
    of macro parameters shall be enclosed in parentheses". Therefore, some
    macro definitions should either gain additional parentheses or have
    their expressions simplified to ensure that all current and future users
    will be safe with respect to expansions that can possibly alter the
    semantics of the passed-in macro parameter.
    
    No functional change.
    
    Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/common/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/common/page_alloc.c b/xen/common/page_alloc.c
index 28c510d666..c94834d71b 100644
--- a/xen/common/page_alloc.c
+++ b/xen/common/page_alloc.c
@@ -150,7 +150,7 @@
 #include <asm/paging.h>
 #else
 #define p2m_pod_offline_or_broken_hit(pg) 0
-#define p2m_pod_offline_or_broken_replace(pg) BUG_ON(pg != NULL)
+#define p2m_pod_offline_or_broken_replace(pg) BUG_ON(pg)
 #endif
 
 #ifndef PGC_static
--
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