[PATCHv3 3/9] net: fec: properly parenthesize macro args
Lothar Waßmann
LW at KARO-electronics.de
Tue Oct 28 06:22:58 PDT 2014
Signed-off-by: Lothar Waßmann <LW at KARO-electronics.de>
---
drivers/net/ethernet/freescale/fec.h | 31 ++++++++++++++++---------------
1 file changed, 16 insertions(+), 15 deletions(-)
diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index e778b9e..27e75cf 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -279,36 +279,37 @@ struct bufdesc_ex {
#define FEC_ENET_MAX_TX_QS 3
#define FEC_ENET_MAX_RX_QS 3
-#define FEC_R_DES_START(X) ((X == 1) ? FEC_R_DES_START_1 : \
- ((X == 2) ? \
+#define FEC_R_DES_START(X) (((X) == 1) ? FEC_R_DES_START_1 : \
+ (((X) == 2) ? \
FEC_R_DES_START_2 : FEC_R_DES_START_0))
-#define FEC_X_DES_START(X) ((X == 1) ? FEC_X_DES_START_1 : \
- ((X == 2) ? \
+#define FEC_X_DES_START(X) (((X) == 1) ? FEC_X_DES_START_1 : \
+ (((X) == 2) ? \
FEC_X_DES_START_2 : FEC_X_DES_START_0))
-#define FEC_R_DES_ACTIVE(X) ((X == 1) ? FEC_R_DES_ACTIVE_1 : \
- ((X == 2) ? \
+#define FEC_R_DES_ACTIVE(X) (((X) == 1) ? FEC_R_DES_ACTIVE_1 : \
+ (((X) == 2) ? \
FEC_R_DES_ACTIVE_2 : FEC_R_DES_ACTIVE_0))
-#define FEC_X_DES_ACTIVE(X) ((X == 1) ? FEC_X_DES_ACTIVE_1 : \
- ((X == 2) ? \
+#define FEC_X_DES_ACTIVE(X) (((X) == 1) ? FEC_X_DES_ACTIVE_1 : \
+ (((X) == 2) ? \
FEC_X_DES_ACTIVE_2 : FEC_X_DES_ACTIVE_0))
-#define FEC_DMA_CFG(X) ((X == 2) ? FEC_DMA_CFG_2 : FEC_DMA_CFG_1)
+#define FEC_DMA_CFG(X) (((X) == 2) ? FEC_DMA_CFG_2 : FEC_DMA_CFG_1)
#define DMA_CLASS_EN (1 << 16)
-#define FEC_RCMR(X) ((X == 2) ? FEC_RCMR_2 : FEC_RCMR_1)
+#define FEC_RCMR(X) (((X) == 2) ? FEC_RCMR_2 : FEC_RCMR_1)
#define IDLE_SLOPE_MASK 0xffff
#define IDLE_SLOPE_1 0x200 /* BW fraction: 0.5 */
#define IDLE_SLOPE_2 0x200 /* BW fraction: 0.5 */
-#define IDLE_SLOPE(X) ((X == 1) ? (IDLE_SLOPE_1 & IDLE_SLOPE_MASK) : \
+#define IDLE_SLOPE(X) (((X) == 1) ? \
+ (IDLE_SLOPE_1 & IDLE_SLOPE_MASK) : \
(IDLE_SLOPE_2 & IDLE_SLOPE_MASK))
#define RCMR_MATCHEN (0x1 << 16)
-#define RCMR_CMP_CFG(v, n) ((v & 0x7) << (n << 2))
+#define RCMR_CMP_CFG(v, n) (((v) & 0x7) << (n << 2))
#define RCMR_CMP_1 (RCMR_CMP_CFG(0, 0) | RCMR_CMP_CFG(1, 1) | \
RCMR_CMP_CFG(2, 2) | RCMR_CMP_CFG(3, 3))
#define RCMR_CMP_2 (RCMR_CMP_CFG(4, 0) | RCMR_CMP_CFG(5, 1) | \
RCMR_CMP_CFG(6, 2) | RCMR_CMP_CFG(7, 3))
-#define RCMR_CMP(X) ((X == 1) ? RCMR_CMP_1 : RCMR_CMP_2)
-#define FEC_TX_BD_FTYPE(X) ((X & 0xf) << 20)
+#define RCMR_CMP(X) (((X) == 1) ? RCMR_CMP_1 : RCMR_CMP_2)
+#define FEC_TX_BD_FTYPE(X) (((X) & 0xf) << 20)
/* The number of Tx and Rx buffers. These are allocated from the page
* pool. The code may assume these are power of two, so it it best
@@ -359,7 +360,7 @@ struct bufdesc_ex {
/* ENET interrupt coalescing macro define */
#define FEC_ITR_CLK_SEL (0x1 << 30)
#define FEC_ITR_EN (0x1 << 31)
-#define FEC_ITR_ICFT(X) ((X & 0xff) << 20)
+#define FEC_ITR_ICFT(X) (((X) & 0xff) << 20)
#define FEC_ITR_ICTT(X) ((X) & 0xffff)
#define FEC_ITR_ICFT_DEFAULT 200 /* Set 200 frame count threshold */
#define FEC_ITR_ICTT_DEFAULT 1000 /* Set 1000us timer threshold */
--
1.7.10.4
More information about the linux-arm-kernel
mailing list