[XEN PATCH 07/10] x86/acpi: power: address violations of MISRA 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/arch/x86/acpi/power.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/xen/arch/x86/acpi/power.c b/xen/arch/x86/acpi/power.c
index c6fa810a6b13..610937f42e95 100644
--- a/xen/arch/x86/acpi/power.c
+++ b/xen/arch/x86/acpi/power.c
@@ -422,12 +422,12 @@ static void tboot_sleep(u8 sleep_state)
 {
     uint32_t shutdown_type;
 
-#define TB_COPY_GAS(tbg, g)             \
-    tbg.space_id = g.space_id;          \
-    tbg.bit_width = g.bit_width;        \
-    tbg.bit_offset = g.bit_offset;      \
-    tbg.access_width = g.access_width;  \
-    tbg.address = g.address;
+#define TB_COPY_GAS(tbg, g)                 \
+    (tbg).space_id = (g).space_id;          \
+    (tbg).bit_width = (g).bit_width;        \
+    (tbg).bit_offset = (g).bit_offset;      \
+    (tbg).access_width = (g).access_width;  \
+    (tbg).address = (g).address;
 
     /* sizes are not same (due to packing) so copy each one */
     TB_COPY_GAS(g_tboot_shared->acpi_sinfo.pm1a_cnt_blk,
-- 
2.34.1