From: Scott Branden <scott.branden@broadcom.com>
To: Florian Fainelli <f.fainelli@gmail.com>,
Lee Jones <lee.jones@linaro.org>,
thierry.reding@gmail.com, u.kleine-koenig@pengutronix.de,
linux-pwm@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>,
bcm-kernel-feedback-list@broadcom.com
Subject: Re: [PATCH 1/4] pwm: bcm-iproc: Remove impossible comparison when validating duty cycle
Date: Mon, 29 Jun 2020 09:54:20 -0700 [thread overview]
Message-ID: <76a657ca-d30e-c5f2-f057-1c1bb7c8e1bf@broadcom.com> (raw)
In-Reply-To: <3470e941-aa86-11a8-674b-5258a08fedb1@gmail.com>
On 2020-06-29 9:45 a.m., Florian Fainelli wrote:
>
> On 6/29/2020 5:47 AM, Lee Jones wrote:
>> 'duty' here is an unsigned int, thus checking for <0 will always
>> evaluate to false.
>>
>> Fixes the following W=1 warning:
>>
>> drivers/pwm/pwm-bcm-iproc.c:147:12: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
>>
>> Cc: Ray Jui <rjui@broadcom.com>
>> Cc: Scott Branden <sbranden@broadcom.com>
>> Cc: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
>> Cc: bcm-kernel-feedback-list@broadcom.com
>> Cc: linux-pwm@vger.kernel.org
>> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> And IPROC_PWM_DUTY_CYCLE_MIN is unused after remove this single use of
> the define, if you also remove it you can add:
>
> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
We actually made this same change internally recently but hadn't
upstreamed it yet.
Tested-by: Scott Branden <scott.branden@broadcom.com>
next prev parent reply other threads:[~2020-06-29 19:22 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-29 12:47 [PATCH 0/4] Fix a bunch of W=1 warnings in PWM Lee Jones
2020-06-29 12:47 ` [PATCH 1/4] pwm: bcm-iproc: Remove impossible comparison when validating duty cycle Lee Jones
2020-06-29 16:45 ` Florian Fainelli
2020-06-29 16:54 ` Scott Branden [this message]
2020-06-29 19:45 ` Uwe Kleine-König
2020-06-29 12:47 ` [PATCH 2/4] pwm: bcm-kona: " Lee Jones
2020-06-29 16:45 ` Florian Fainelli
2020-06-29 19:41 ` Uwe Kleine-König
2020-06-29 12:47 ` [PATCH 3/4] pwm: mediatek: Provide missing kerneldoc description for 'soc' arg Lee Jones
2020-06-29 19:47 ` Uwe Kleine-König
2020-06-29 12:47 ` [PATCH 4/4] pwm: omap-dmtimer: Repair pwm_omap_dmtimer_chip's broken kerneldoc header Lee Jones
2020-06-29 19:39 ` Uwe Kleine-König
2020-07-27 7:50 ` [PATCH 0/4] Fix a bunch of W=1 warnings in PWM Thierry Reding
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