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commit 0d02b75d7cd3a24989d7982f6a0b0c8da580074e
Author: Nicola Vetrini <nicola.vetrini@bugseng.com>
AuthorDate: Thu Apr 25 09:49:04 2024 +0200
Commit: Jan Beulich <jbeulich@suse.com>
CommitDate: Thu Apr 25 09:49:04 2024 +0200

xen/page-defs: address violation 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 gain additional parentheses 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@bugseng.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
---
xen/include/xen/page-defs.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/xen/include/xen/page-defs.h b/xen/include/xen/page-defs.h
index 540f8b0b64..682da6b7b4 100644
--- a/xen/include/xen/page-defs.h
+++ b/xen/include/xen/page-defs.h
@@ -4,7 +4,8 @@
/* Helpers for different page granularities. */
#define PAGE_SIZE_GRAN(gran) ((paddr_t)1 << PAGE_SHIFT_##gran)
#define PAGE_MASK_GRAN(gran) (-PAGE_SIZE_GRAN(gran))
-#define PAGE_ALIGN_GRAN(gran, addr) ((addr + ~PAGE_MASK_##gran) & PAGE_MASK_##gran)
+#define PAGE_ALIGN_GRAN(gran, addr) (((addr) + ~PAGE_MASK_##gran) & \
+ PAGE_MASK_##gran)

#define PAGE_SHIFT_4K 12
#define PAGE_SIZE_4K PAGE_SIZE_GRAN(4K)
--
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