Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: [PATCH] sched/core: Fix compiling warring in smp=n case
To:     linux-kernel@vger.kernel.org, x86@kernel.org
Cc:     tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        peterz@infradead.org, vincent.guittot@linaro.org,
        Dou Liyang <douly.fnst@cn.fujitsu.com>
References: <20180810023523.23923-1-douly.fnst@cn.fujitsu.com>
From:   Dou Liyang <dou_liyang@163.com>
Message-ID: <2278505d-94ce-ab68-dbe3-5e4e1c9094ef@163.com>
Date:   Thu, 13 Sep 2018 17:55:25 +0800
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101
 Thunderbird/52.5.2
MIME-Version: 1.0
In-Reply-To: <20180810023523.23923-1-douly.fnst@cn.fujitsu.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk


At 08/10/2018 10:35 AM, Dou Liyang wrote:
> When compiling kernel with SMP disabled, the build warns with:
> 
> kernel/sched/core.c: In function ‘update_rq_clock_task’:
> kernel/sched/core.c:139:17: warning: unused variable ‘irq_delta’ [-Wunused-variable]
>    s64 steal = 0, irq_delta = 0;
> 
> Fix this by revert the HAVE_SCHED_AVG_IRQ to
> 
>    defined(CONFIG_IRQ_TIME_ACCOUNTING) || defined(CONFIG_PARAVIRT_TIME_ACCOUNTING)
> 
> Fixes: 2e62c4743adc ("sched/fair: Remove #ifdefs from scale_rt_capacity()")

Hi,

  Miguel also found this warning. Can we pick it up now? ;-)

Thanks,
	dou