can: flexcan: FLEXCAN_IFLAG_MB: add () around macro argument

This patch fixes the following checkpatch warning:

| Macro argument 'x' may be better as '(x)' to avoid precedence issues

Fixes: cbffaf7aa09e ("can: flexcan: Always use last mailbox for TX")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 9dc14bc..7085eb3 100644 (file)
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -140,7 +140,7 @@
 #define FLEXCAN_TX_MB                          63
 #define FLEXCAN_RX_MB_OFF_TIMESTAMP_FIRST      (FLEXCAN_TX_MB_RESERVED_OFF_TIMESTAMP + 1)
 #define FLEXCAN_RX_MB_OFF_TIMESTAMP_LAST       (FLEXCAN_TX_MB - 1)
-#define FLEXCAN_IFLAG_MB(x)            BIT(x & 0x1f)
+#define FLEXCAN_IFLAG_MB(x)            BIT((x) & 0x1f)
 #define FLEXCAN_IFLAG_RX_FIFO_OVERFLOW BIT(7)
 #define FLEXCAN_IFLAG_RX_FIFO_WARN     BIT(6)
 #define FLEXCAN_IFLAG_RX_FIFO_AVAILABLE        BIT(5)