linux-kernel - Re: [PATCH] staging: wilc1000: correct inconsistent indenting

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Date:   Thu, 29 Nov 2018 14:45:04 +0100
From:   Michael Straube <straube.linux@...il.com>
To:     Joe Perches <joe@...ches.com>, gregkh@...uxfoundation.org
Cc:     ajay.kathat@...rochip.com, adham.abozaeid@...rochip.com,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: wilc1000: correct inconsistent indenting

On 11/29/18 7:24 AM, Joe Perches wrote:
> On Wed, 2018-11-28 at 19:17 +0100, Michael Straube wrote:
>> Correct inconsistent indenting reported by smatch.
> []
>> diff --git a/drivers/staging/wilc1000/wilc_spi.c b/drivers/staging/wilc1000/wilc_spi.c
> []
>> @@ -963,7 +963,7 @@ static int wilc_spi_read_int(struct wilc *wilc, u32 *int_status)
>>   			dev_err(&spi->dev,
>>   				"Unexpected interrupt(2):j=%d,tmp=%x,mask=%x\n",
>>   				j, tmp, unknown_mask);
>> -				happened = 1;
>> +			happened = 1;s a
>>   		}
>>   
>>   		j++;
> 
> Perhaps a little refactoring instead
> ---
>   drivers/staging/wilc1000/wilc_spi.c | 12 +++++-------
>   1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/staging/wilc1000/wilc_spi.c b/drivers/staging/wilc1000/wilc_spi.c
> index 35ff432587fe..a38ddb1f0a1f 100644
> --- a/drivers/staging/wilc1000/wilc_spi.c
> +++ b/drivers/staging/wilc1000/wilc_spi.c
> @@ -927,7 +927,8 @@ static int wilc_spi_read_int(struct wilc *wilc, u32 *int_status)
>   	int ret;
>   	u32 tmp;
>   	u32 byte_cnt;
> -	int happened, j;
> +	bool unexpected_irq;
> +	int j;
>   	u32 unknown_mask;
>   	u32 irq_flags;
>   	int k = IRG_FLAGS_OFFSET + 5;
> @@ -947,8 +948,6 @@ static int wilc_spi_read_int(struct wilc *wilc, u32 *int_status)
>   
>   	j = 0;
>   	do {
> -		happened = 0;
> -
>   		wilc_spi_read_reg(wilc, 0x1a90, &irq_flags);
>   		tmp |= ((irq_flags >> 27) << IRG_FLAGS_OFFSET);
>   
> @@ -959,15 +958,14 @@ static int wilc_spi_read_int(struct wilc *wilc, u32 *int_status)
>   
>   		unknown_mask = ~((1ul << spi_priv->nint) - 1);
>   
> -		if ((tmp >> IRG_FLAGS_OFFSET) & unknown_mask) {
> +		unexpected_irq = (tmp >> IRG_FLAGS_OFFSET) & unknown_mask;
> +		if (unexpected_irq)
>   			dev_err(&spi->dev,
>   				"Unexpected interrupt(2):j=%d,tmp=%x,mask=%x\n",
>   				j, tmp, unknown_mask);
> -				happened = 1;
> -		}
>   
>   		j++;
> -	} while (happened);
> +	} while (unexpected_irq);
>   
>   	*int_status = tmp;
>   
> 
Hi Joe,

that looks good to me.
Naming the loop condition unexpected_irq also improves readability.

I will send a new patch, thanks.
Michael