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Subject: Re: [PATCH -next] tracing: Remove set but not used variable 'ret'
To:     Steven Rostedt <rostedt@goodmis.org>
CC:     <mingo@redhat.com>, <linux-kernel@vger.kernel.org>,
        <weiyongjun1@huawei.com>, <yuehaibing@huawei.com>,
        <yangjihong1@huawei.com>, <yukuai3@huawei.com>
References: <20210527091032.3878436-1-libaokun1@huawei.com>
 <4ab45eeb-ad26-03e8-f2c5-2dc4582a2946@huawei.com>
 <20210615113925.27ad04ea@oasis.local.home>
From:   "libaokun (A)" <libaokun1@huawei.com>
Message-ID: <ff4437bb-5285-5bf5-8c87-757dd07e51ef@huawei.com>
Date:   Wed, 16 Jun 2021 09:11:04 +0800
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Thank you for your reminder.

Best Regards.


在 2021/6/15 23:39, Steven Rostedt 写道:
> On Tue, 15 Jun 2021 09:59:10 +0800
> "libaokun (A)" <libaokun1@huawei.com> wrote:
>
>> ping
>>
>> 在 2021/5/27 17:10, Baokun Li 写道:
>>> Fixes gcc '-Wunused-but-set-variable' warning:
>>>
>>> kernel/trace/trace_events_hist.c: In function 'unregister_field_var_hists':
>>> kernel/trace/trace_events_hist.c:5228:6: warning:
>>>    variable ‘ret’ set but not used [-Wunused-but-set-variable]
>>>
>>> It never used since introduction.
> Which was a bug.
>
>>> Signed-off-by: Baokun Li <libaokun1@huawei.com>
> This was fixed differently:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=6c610dba6e2beb1a16ac309672181d0090fb8d30
>
> -- Steve
> .