[xen staging] x86/mm: fix IS_LnE_ALIGNED() to comply with Misra Rule 20.7

[patchbot@xxxxxxx]

commit 3ac41c60e8d29bde63e0f6a0ad2892b60b838ab7
Author:     Roger Pau Monné <roger.pau@xxxxxxxxxx>
AuthorDate: Tue Nov 19 11:34:41 2024 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Nov 19 19:53:51 2024 +0000

    x86/mm: fix IS_LnE_ALIGNED() to comply with Misra Rule 20.7
    
    While not strictly needed to guarantee operator precedence is as expected, 
add
    the parentheses to comply with Misra Rule 20.7.
    
    No functional change intended.
    
    Reported-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Fixes: 5b52e1b0436f ('x86/mm: skip super-page alignment checks for 
non-present entries')
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/arch/x86/mm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
index 494c14e80f..fa21903eb2 100644
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -5498,7 +5498,7 @@ int map_pages_to_xen(
  * be INVALID_MFN, since alignment is only relevant for present entries.
  */
 #define IS_LnE_ALIGNED(v, m, n) ({                              \
-    mfn_t m_ = m;                                               \
+    mfn_t m_ = (m);                                             \
                                                                 \
     ASSERT(!mfn_eq(m_, INVALID_MFN));                           \
     IS_ALIGNED(PFN_DOWN(v) | mfn_x(m_),                         \
--
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