linux-kernel - Re: [PATCH] Staging: vt6655: Fix camel case of variable

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Date:   Wed, 2 Jan 2019 14:07:45 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Petr Sedlák <hugosedlak@...il.com>
Cc:     Forest Bond <forest@...ttletooquiet.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Staging: vt6655: Fix camel case of variable

On Sat, Dec 29, 2018 at 11:59:52PM +0100, Petr Sedlák wrote:
> Replace variable uDelayUnit with u_delay_unit. Issue found by
> checkpatch.
> 
> Signed-off-by: Petr Sedlák <hugosedlak@...il.com>
> ---
>  drivers/staging/vt6655/upc.h | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/staging/vt6655/upc.h b/drivers/staging/vt6655/upc.h
> index 61b3e568ff9a..384af225336a 100644
> --- a/drivers/staging/vt6655/upc.h
> +++ b/drivers/staging/vt6655/upc.h
> @@ -42,15 +42,15 @@
>  #define VNSvOutPortD(dwIOAddress, dwData) \
>  	iowrite32((u32)(dwData), dwIOAddress)
>  
> -#define PCAvDelayByIO(uDelayUnit)				\
> +#define PCAvDelayByIO(u_delay_unit)				\
>  do {								\
>  	unsigned char byData;					\
>  	unsigned long ii;					\
>  								\
> -	if (uDelayUnit <= 50) {					\
> -		udelay(uDelayUnit);				\
> +	if (u_delay_unit <= 50) {					\
> +		udelay(u_delay_unit);				\
>  	} else {						\
> -		for (ii = 0; ii < (uDelayUnit); ii++)		\
> +		for (ii = 0; ii < (u_delay_unit); ii++)		\
>  			byData = inb(0x61);			\
>  	}							\
>  } while (0)


This is a hilariously awful macro.  It reads from a register usec number
of times to introduce a delay.  :P

Just delete it and fix the callers to use normal delay functions.

regards,
dan carpenter