[XEN PATCH 04/11] xentrace: address violation of MISRA C Rule 20.7

[Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>]

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@xxxxxxxxxxx>
---
 xen/include/public/trace.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/include/public/trace.h b/xen/include/public/trace.h
index 62a179971d2a..3c9f9c3c18b2 100644
--- a/xen/include/public/trace.h
+++ b/xen/include/public/trace.h
@@ -67,7 +67,7 @@
 #define TRC_SCHED_CLASS_EVT(_c, _e) \
   ( ( TRC_SCHED_CLASS | \
       ((TRC_SCHED_##_c << TRC_SCHED_ID_SHIFT) & TRC_SCHED_ID_MASK) ) + \
-    (_e & TRC_SCHED_EVT_MASK) )
+    ((_e) & TRC_SCHED_EVT_MASK) )
 
 /* Trace classes for DOM0 operations */
 #define TRC_DOM0_DOMOPS     0x00041000   /* Domains manipulations */
-- 
2.34.1