x86/amd: 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 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>

diff --git a/xen/arch/x86/include/asm/amd.h b/xen/arch/x86/include/asm/amd.h
index 2cc0ce2e9fd29c7e372d8f277bbc5361e676882c..fa4e0fc766aa6a14c6d205b6e7818409b52b3d52 100644 (file)
--- a/xen/arch/x86/include/asm/amd.h
+++ b/xen/arch/x86/include/asm/amd.h
@@ -119,7 +119,8 @@
 #define AMD_LEGACY_ERRATUM(...)         -1 /* legacy */, __VA_ARGS__, 0
 #define AMD_OSVW_ERRATUM(osvw_id, ...)  osvw_id, __VA_ARGS__, 0
 #define AMD_MODEL_RANGE(f, m_start, s_start, m_end, s_end)              \
-    ((f << 24) | (m_start << 16) | (s_start << 12) | (m_end << 4) | (s_end))
+    (((f) << 24) | ((m_start) << 16) | ((s_start) << 12) | \
+     ((m_end) << 4) | (s_end))
 #define AMD_MODEL_RANGE_FAMILY(range)   (((range) >> 24) & 0xff)
 #define AMD_MODEL_RANGE_START(range)    (((range) >> 12) & 0xfff)
 #define AMD_MODEL_RANGE_END(range)      ((range) & 0xfff)