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From: Thierry Reding <thierry.reding@gmail.com>
To: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Heiko Stuebner <heiko@sntech.de>,
	David Wu <david.wu@rock-chips.com>,
	linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] pwm: rockchip: simplify rockchip_pwm_get_state()
Date: Tue, 2 Jun 2020 14:39:14 +0200	[thread overview]
Message-ID: <20200602123914.GA3360525@ulmo> (raw)
In-Reply-To: <20190919091728.24756-1-linux@rasmusvillemoes.dk>

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On Thu, Sep 19, 2019 at 11:17:27AM +0200, Rasmus Villemoes wrote:
> The way state->enabled is computed is rather convoluted and hard to
> read - both branches of the if() actually do the exact same thing. So
> remove the if(), and further simplify "<boolean condition> ? true :
> false" to "<boolean condition>".
> 
> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
> ---
> I stumbled on this while trying to understand how the pwm subsystem
> works. This patch is a semantic no-op, but it's also possible that,
> say, the first branch simply contains a "double negative" so either
> the != should be == or the "false : true" should be "true : false".
> 
>  drivers/pwm/pwm-rockchip.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)

I've applied this. Irrespective of any feedback David would have this is
correct and a nice simplification.

Thierry

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WARNING: multiple messages have this Message-ID (diff)
From: Thierry Reding <thierry.reding@gmail.com>
To: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: linux-pwm@vger.kernel.org, Heiko Stuebner <heiko@sntech.de>,
	linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
	David Wu <david.wu@rock-chips.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] pwm: rockchip: simplify rockchip_pwm_get_state()
Date: Tue, 2 Jun 2020 14:39:14 +0200	[thread overview]
Message-ID: <20200602123914.GA3360525@ulmo> (raw)
In-Reply-To: <20190919091728.24756-1-linux@rasmusvillemoes.dk>


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On Thu, Sep 19, 2019 at 11:17:27AM +0200, Rasmus Villemoes wrote:
> The way state->enabled is computed is rather convoluted and hard to
> read - both branches of the if() actually do the exact same thing. So
> remove the if(), and further simplify "<boolean condition> ? true :
> false" to "<boolean condition>".
> 
> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
> ---
> I stumbled on this while trying to understand how the pwm subsystem
> works. This patch is a semantic no-op, but it's also possible that,
> say, the first branch simply contains a "double negative" so either
> the != should be == or the "false : true" should be "true : false".
> 
>  drivers/pwm/pwm-rockchip.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)

I've applied this. Irrespective of any feedback David would have this is
correct and a nice simplification.

Thierry

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  parent reply	other threads:[~2020-06-02 12:39 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-19  9:17 [PATCH] pwm: rockchip: simplify rockchip_pwm_get_state() Rasmus Villemoes
2019-09-19  9:17 ` Rasmus Villemoes
2019-09-19  9:17 ` Rasmus Villemoes
2019-09-19 11:11 ` oUwe Kleine-König
2019-09-19 11:11   ` oUwe Kleine-König
2020-05-23 20:01   ` Uwe Kleine-König
2020-05-23 20:01     ` Uwe Kleine-König
2020-05-23 20:01     ` Uwe Kleine-König
2020-06-02 12:39 ` Thierry Reding [this message]
2020-06-02 12:39   ` Thierry Reding
2020-06-03  3:10   ` David Wu
2020-06-03  3:10     ` David Wu

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