From: Julia Lawall <julia.law...@lip6.fr> Introduce use of I2c_MSG_READ/WRITE/OP, for readability.
A length expressed as an explicit constant is also re-expressed as the size of the buffer in each case. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression a,b,c; identifier x; @@ struct i2c_msg x = - {.addr = a, .buf = b, .len = c, .flags = I2C_M_RD} + I2C_MSG_READ(a,b,c) ; @@ expression a,b,c; identifier x; @@ struct i2c_msg x = - {.addr = a, .buf = b, .len = c, .flags = 0} + I2C_MSG_WRITE(a,b,c) ; @@ expression a,b,c,d; identifier x; @@ struct i2c_msg x = - {.addr = a, .buf = b, .len = c, .flags = d} + I2C_MSG_OP(a,b,c,d) ; // </smpl> Signed-off-by: Julia Lawall <julia.law...@lip6.fr> --- drivers/media/tuners/fc2580.c | 20 +++----------------- 1 file changed, 3 insertions(+), 17 deletions(-) diff --git a/drivers/media/tuners/fc2580.c b/drivers/media/tuners/fc2580.c index aff39ae..d0c0ff1 100644 --- a/drivers/media/tuners/fc2580.c +++ b/drivers/media/tuners/fc2580.c @@ -45,12 +45,7 @@ static int fc2580_wr_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len) int ret; u8 buf[1 + len]; struct i2c_msg msg[1] = { - { - .addr = priv->cfg->i2c_addr, - .flags = 0, - .len = sizeof(buf), - .buf = buf, - } + I2C_MSG_WRITE(priv->cfg->i2c_addr, buf, sizeof(buf)) }; buf[0] = reg; @@ -73,17 +68,8 @@ static int fc2580_rd_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len) int ret; u8 buf[len]; struct i2c_msg msg[2] = { - { - .addr = priv->cfg->i2c_addr, - .flags = 0, - .len = 1, - .buf = ®, - }, { - .addr = priv->cfg->i2c_addr, - .flags = I2C_M_RD, - .len = sizeof(buf), - .buf = buf, - } + I2C_MSG_WRITE(priv->cfg->i2c_addr, ®, sizeof(reg)), + I2C_MSG_READ(priv->cfg->i2c_addr, buf, sizeof(buf)) }; ret = i2c_transfer(priv->i2c, msg, 2); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
