Name macro parameters after what they represent instead of 'x' and make sure the evaluation of that will have no side effects. Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Signed-off-by: Marcus Folkesson <marcus.folkesson@xxxxxxxxx> --- Notes: v5: - New patch in this series v6: - change 'ch' to '(ch)' v7: - Reword commit message drivers/iio/adc/mcp3911.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c index f9db08813645..281cc1211fd6 100644 --- a/drivers/iio/adc/mcp3911.c +++ b/drivers/iio/adc/mcp3911.c @@ -29,8 +29,8 @@ #define MCP3911_REG_MOD 0x06 #define MCP3911_REG_PHASE 0x07 #define MCP3911_REG_GAIN 0x09 -#define MCP3911_GAIN_MASK(ch) (GENMASK(2, 0) << 3 * ch) -#define MCP3911_GAIN_VAL(ch, val) ((val << 3 * ch) & MCP3911_GAIN_MASK(ch)) +#define MCP3911_GAIN_MASK(ch) (GENMASK(2, 0) << 3 * (ch)) +#define MCP3911_GAIN_VAL(ch, val) ((val << 3 * (ch)) & MCP3911_GAIN_MASK(ch)) #define MCP3911_REG_STATUSCOM 0x0a #define MCP3911_STATUSCOM_DRHIZ BIT(12) @@ -51,8 +51,8 @@ #define MCP3911_REG_GAINCAL_CH1 0x17 #define MCP3911_REG_VREFCAL 0x1a -#define MCP3911_CHANNEL(x) (MCP3911_REG_CHANNEL0 + x * 3) -#define MCP3911_OFFCAL(x) (MCP3911_REG_OFFCAL_CH0 + x * 6) +#define MCP3911_CHANNEL(ch) (MCP3911_REG_CHANNEL0 + (ch) * 3) +#define MCP3911_OFFCAL(ch) (MCP3911_REG_OFFCAL_CH0 + (ch) * 6) /* Internal voltage reference in mV */ #define MCP3911_INT_VREF_MV 1200 -- 2.41.0