Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Subject: Re: [kbuild-all] Re:
 [ammarfaizi2-block:rostedt/linux-trace/ftrace/core 30/30]
 include/linux/cpumask.h:95:42: warning: function
 'trace_event_get_offsets_foo_bar' might be a candidate for 'gnu_printf'
 format attribute
To:     Steven Rostedt <rostedt@goodmis.org>,
        kernel test robot <lkp@intel.com>
Cc:     kbuild-all@lists.01.org, Ammar Faizi <ammarfaizi2@gnuweeb.org>,
        GNU/Weeb Mailing List <gwml@vger.gnuweeb.org>,
        linux-kernel@vger.kernel.org
References: <202207160905.GmOfByea-lkp@intel.com>
 <20220715230441.64c89d63@gandalf.local.home>
From:   "Chen, Rong A" <rong.a.chen@intel.com>
Message-ID: <a7692c5a-c432-8c51-413d-71072ab2153a@intel.com>
Date:   Tue, 19 Jul 2022 08:38:27 +0800
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
 Firefox/78.0 Thunderbird/78.12.0
MIME-Version: 1.0
In-Reply-To: <20220715230441.64c89d63@gandalf.local.home>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk


On 7/16/2022 11:04 AM, Steven Rostedt wrote:
> On Sat, 16 Jul 2022 09:09:15 +0800
> kernel test robot <lkp@intel.com> wrote:
> 
>> All warnings (new ones prefixed by >>):
>>
>>     In file included from include/trace/define_trace.h:102,
>>                      from samples/trace_events/trace-events-sample.h:608,
>>                      from samples/trace_events/trace-events-sample.c:12:
>>     samples/trace_events/./trace-events-sample.h: In function 'trace_event_get_offsets_foo_bar':
>>>> include/linux/cpumask.h:95:42: warning: function 'trace_event_get_offsets_foo_bar' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
>>        95 | #define cpu_possible_mask ((const struct cpumask *)&__cpu_possible_mask)
>>           |                                          ^~~~~~~
> 
> Please quiet the gnu_printf warning. I actually missed a real build issue
> from the kernel test robot in the last patch set because it was the needle
> in the gnu_printf haystack :-p
> 
> That is, after having 10 of these warnings, I missed the one that actually
> mattered.
> 
> -- Steve

Hi Steve,

Sorry for the noise, we didn't ignore gnu_printf warning in this file,
we will ignore all gnu_printf warnings.

Best Regards,
Rong Chen