linux-kernel - Re: [PATCH] sched: Declare sched_rt_bandwidth

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Date:   Fri, 26 Jun 2020 15:41:11 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     kernel test robot <lkp@...el.com>
Cc:     Ingo Molnar <mingo@...hat.com>, kbuild-all@...ts.01.org,
        clang-built-linux@...glegroups.com,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sched: Declare sched_rt_bandwidth_account() in include
 file

On Sat, Jun 27, 2020 at 03:16:15AM +0800, kernel test robot wrote:
> Hi Guenter,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on tip/sched/core]
> [also build test ERROR on tip/auto-latest linux/master linus/master v5.8-rc2 next-20200626]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use  as documented in
> https://git-scm.com/docs/git-format-patch]
> 
> url:    https://github.com/0day-ci/linux/commits/Guenter-Roeck/sched-Declare-sched_rt_bandwidth_account-in-include-file/20200626-220544
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 01e377c539ca52a6c753d0fdbe93b3b8fcd66a1c
> config: x86_64-allnoconfig (attached as .config)
> compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 6e11ed52057ffc39941cb2de6d93cae522db4782)
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # install x86_64 cross compiling tool for clang build
>         # apt-get install binutils-x86-64-linux-gnu
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All errors (new ones prefixed by >>):
> 
> >> kernel/sched/deadline.c:1315:7: error: implicit declaration of function 'sched_rt_bandwidth_account' [-Werror,-Wimplicit-function-declaration]
>                    if (sched_rt_bandwidth_account(rt_rq))
>                        ^

Guess I missed some condition. I'll try again.

Guenter