[xen staging] arm/atomic: fix MISRA C 2012 Rule 20.7 violation

[patchbot@xxxxxxx]

commit 062790aca6b1faea62c9ed2737c3791efb0d0f4c
Author:     Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
AuthorDate: Fri Jul 29 08:51:31 2022 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Jul 29 08:51:31 2022 +0200

    arm/atomic: fix MISRA C 2012 Rule 20.7 violation
    
    The macro parameter 'p' is used as an expression and needs to be enclosed in
    parentheses.
    
    Signed-off-by: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/arch/arm/include/asm/atomic.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/xen/arch/arm/include/asm/atomic.h 
b/xen/arch/arm/include/asm/atomic.h
index ac2798d095..1f60c28b1b 100644
--- a/xen/arch/arm/include/asm/atomic.h
+++ b/xen/arch/arm/include/asm/atomic.h
@@ -123,15 +123,15 @@ static always_inline void write_atomic_size(volatile void 
*p,
 }
 
 #define read_atomic(p) ({                                               \
-    union { typeof(*p) val; char c[0]; } x_;                            \
-    read_atomic_size(p, x_.c, sizeof(*p));                              \
+    union { typeof(*(p)) val; char c[0]; } x_;                          \
+    read_atomic_size(p, x_.c, sizeof(*(p)));                            \
     x_.val;                                                             \
 })
 
 #define write_atomic(p, x)                                              \
     do {                                                                \
-        typeof(*p) x_ = (x);                                            \
-        write_atomic_size(p, &x_, sizeof(*p));                          \
+        typeof(*(p)) x_ = (x);                                          \
+        write_atomic_size(p, &x_, sizeof(*(p)));                        \
     } while ( false )
 
 #define add_sized(p, x) ({                                              \
--
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