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Subject: Re: [PATCH] drivers/pinctrl/bcm: Simplify bool comparison
To:     Jiapeng Zhong <abaci-bugfix@linux.alibaba.com>, rjui@broadcom.com
Cc:     sbranden@broadcom.com, bcm-kernel-feedback-list@broadcom.com,
        linus.walleij@linaro.org, linux-arm-kernel@lists.infradead.org,
        linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org
References: <1610705349-24310-1-git-send-email-abaci-bugfix@linux.alibaba.com>
From:   Ray Jui <ray.jui@broadcom.com>
Message-ID: <64a316c8-bc53-69af-8325-2746f6f1827c@broadcom.com>
Date:   Fri, 15 Jan 2021 10:24:51 -0800
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On 1/15/2021 2:09 AM, Jiapeng Zhong wrote:
> Fix the follow coccicheck warnings:
> 
> ./drivers/pinctrl/bcm/pinctrl-ns2-mux.c:856:29-38: WARNING:
> Comparison to bool.
> 

Sorry I must be missing something here. Why is there a warning while
'pull_up' and 'pull_down' are already of type 'bool' and compared to
'false'?

> Reported-by: Abaci Robot <abaci@linux.alibaba.com>
> Signed-off-by: Jiapeng Zhong <abaci-bugfix@linux.alibaba.com>
> ---
>  drivers/pinctrl/bcm/pinctrl-ns2-mux.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pinctrl/bcm/pinctrl-ns2-mux.c b/drivers/pinctrl/bcm/pinctrl-ns2-mux.c
> index 57044ab..0fe4a1f 100644
> --- a/drivers/pinctrl/bcm/pinctrl-ns2-mux.c
> +++ b/drivers/pinctrl/bcm/pinctrl-ns2-mux.c
> @@ -853,7 +853,7 @@ static int ns2_pin_config_get(struct pinctrl_dev *pctldev, unsigned int pin,
>  	switch (param) {
>  	case PIN_CONFIG_BIAS_DISABLE:
>  		ns2_pin_get_pull(pctldev, pin, &pull_up, &pull_down);
> -		if ((pull_up == false) && (pull_down == false))
> +		if (!pull_up && !pull_down)


Looks fine as improvement, but I'm curious why there's a warning to
start with.

Thanks,

Ray

>  			return 0;
>  		else
>  			return -EINVAL;
> 

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