[XEN PATCH 04/10] drivers: char: 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 chage.

Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
---
 xen/drivers/char/omap-uart.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/xen/drivers/char/omap-uart.c b/xen/drivers/char/omap-uart.c
index 03b5b66e7acb..9e1abf306ace 100644
--- a/xen/drivers/char/omap-uart.c
+++ b/xen/drivers/char/omap-uart.c
@@ -48,8 +48,9 @@
 /* System configuration register */
 #define UART_OMAP_SYSC_DEF_CONF   0x0d   /* autoidle mode, wakeup is enabled */
 
-#define omap_read(uart, off)       readl((uart)->regs + (off<<REG_SHIFT))
-#define omap_write(uart, off, val) writel((val), (uart)->regs + 
(off<<REG_SHIFT))
+#define omap_read(uart, off)       readl((uart)->regs + ((off) << REG_SHIFT))
+#define omap_write(uart, off, val) writel((val), (uart)->regs + \
+                                                 ((off) << REG_SHIFT))
 
 static struct omap_uart {
     u32 baud, clock_hz, data_bits, parity, stop_bits, fifo_size;
-- 
2.34.1