linux-kernel - Re: [tip: timers/core] posix-cpu-timers: Use common permission check in posix_cpu_clock

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Date:   Thu, 29 Aug 2019 13:21:59 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     kbuild test robot <lkp@...el.com>
cc:     tip-bot2 for Thomas Gleixner <tip-bot2@...utronix.de>,
        kbuild-all@...org, linux-tip-commits@...r.kernel.org,
        Frederic Weisbecker <frederic@...nel.org>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [tip: timers/core] posix-cpu-timers: Use common permission check
 in posix_cpu_clock_get()

On Thu, 29 Aug 2019, kbuild test robot wrote:
> Thank you for the patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [cannot apply to v5.3-rc6 next-20190828]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

I have no idea what you are testing there.

>    kernel/time/posix-cpu-timers.c: In function 'posix_cpu_clock_get':
> >> kernel/time/posix-cpu-timers.c:275:8: error: implicit declaration of function 'get_task_for_clock'; did you mean 'get_task_struct'? [-Werror=implicit-function-declaration]
>      tsk = get_task_for_clock(clock);
>            ^~~~~~~~~~~~~~~~~~
>            get_task_struct
> >> kernel/time/posix-cpu-timers.c:275:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
>      tsk = get_task_for_clock(clock);
>          ^
>    cc1: some warnings being treated as errors

That commit comes _after_ the commit which introduced the function and
get_task_for_clock() is defined above posix_cpu_clock_get(), so I assume
you missed to apply the commit on which this depends on.

Thanks,

	tglx