netdev - [PATCH 6/7] can: mcp251x: define helper functions mcp251x_is_2510, mcp251x_is

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Date:	Fri, 15 Oct 2010 12:49:21 +0200
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	socketcan-core@...ts.berlios.de
Cc:	netdev@...r.kernel.org, Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH 6/7] can: mcp251x: define helper functions mcp251x_is_2510, mcp251x_is_2515

Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/mcp251x.c |   16 ++++++++++++----
 1 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c
index f5e2edd..28281f9 100644
--- a/drivers/net/can/mcp251x.c
+++ b/drivers/net/can/mcp251x.c
@@ -252,6 +252,16 @@ struct mcp251x_priv {
 	int restart_tx;
 };
 
+#define MCP251X_IS(_model) \
+static inline int mcp251x_is_##_model(struct spi_device *spi) \
+{ \
+	struct mcp251x_platform_data *pdata = spi->dev.platform_data; \
+	return pdata->model == CAN_MCP251X_MCP##_model; \
+}
+
+MCP251X_IS(2510);
+MCP251X_IS(2515);
+
 static void mcp251x_clean(struct net_device *net)
 {
 	struct mcp251x_priv *priv = netdev_priv(net);
@@ -362,10 +372,9 @@ static void mcp251x_write_bits(struct spi_device *spi, u8 reg,
 static void mcp251x_hw_tx_frame(struct spi_device *spi, u8 *buf,
 				int len, int tx_buf_idx)
 {
-	struct mcp251x_platform_data *pdata = spi->dev.platform_data;
 	struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev);
 
-	if (pdata->model == CAN_MCP251X_MCP2510) {
+	if (mcp251x_is_2510(spi)) {
 		int i;
 
 		for (i = 1; i < TXBDAT_OFF + len; i++)
@@ -408,9 +417,8 @@ static void mcp251x_hw_rx_frame(struct spi_device *spi, u8 *buf,
 				int buf_idx)
 {
 	struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev);
-	struct mcp251x_platform_data *pdata = spi->dev.platform_data;
 
-	if (pdata->model == CAN_MCP251X_MCP2510) {
+	if (mcp251x_is_2510(spi)) {
 		int i, len;
 
 		for (i = 1; i < RXBDAT_OFF; i++)
-- 
1.7.0.4

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