Re: [PATCH] input: edt-ft5x06: fixed a macro coding style issue

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On Tue, 2014-12-09 at 08:34 +0200, Asaf Vertz wrote:
> Fixed a coding style error, macros with complex values should be
> enclosed in parentheses.
[]
> diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
[]
> @@ -849,10 +849,11 @@ static int edt_ft5x06_ts_identify(struct i2c_client *client,
>  	return 0;
>  }
>  
> -#define EDT_ATTR_CHECKSET(name, reg) \
> +#define EDT_ATTR_CHECKSET(name, reg) { \
>  	if (pdata->name >= edt_ft5x06_attr_##name.limit_low &&		\
>  	    pdata->name <= edt_ft5x06_attr_##name.limit_high)		\
> -		edt_ft5x06_register_write(tsdata, reg, pdata->name)
> +		edt_ft5x06_register_write(tsdata, reg, pdata->name);	\
> +}

Any time you see a naked if (foo) bar in a macro
prefer to use a do while (0) like;

#define EDT_ATTR_CHECKSET(name, reg)					\
do {									\
	if (pdata->name >= edt_ft5x06_attr_##name.limit_low &&		\
	    pdata->name <= edt_ft5x06_attr_##name.limit_high)		\
		edt_ft5x06_register_write(tsdata, reg, pdata->name);	\
while (0)

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