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Date:   Thu, 22 Jul 2021 15:18:05 -0400
From:   Sean Anderson <>
To:     kernel test robot <>,,,
        Thierry Reding <>
Cc:, Alvaro Gamez <>,
        Uwe Kleine-K├Ânig <>,, Lee Jones <>,,
Subject: Re: [PATCH v5 3/3] pwm: Add support for Xilinx AXI Timer

On 7/21/21 9:26 AM, kernel test robot wrote:
> Hi Sean,
> I love your patch! Yet something to improve:
> [auto build test ERROR on tip/timers/core]
> [also build test ERROR on pwm/for-next linus/master v5.14-rc2 next-20210720]
> [cannot apply to xlnx/master]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> url:
> base: 2d0a9eb23ccfdf11308bec6db0bc007585d919d2
> config: m68k-allmodconfig (attached as .config)
> compiler: m68k-linux-gcc (GCC) 10.3.0
> reproduce (this is a W=1 build):
>          wget -O ~/bin/make.cross
>          chmod +x ~/bin/make.cross
>          #
>          git remote add linux-review
>          git fetch --no-tags linux-review Sean-Anderson/dt-bindings-pwm-Add-Xilinx-AXI-Timer/20210720-144903
>          git checkout 338d061c42411ef012c4dce517355fd1d61c1cab
>          # save the attached .config to linux build tree
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=m68k
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <>
> All errors (new ones prefixed by >>, old ones prefixed by <<):
>>> ERROR: modpost: "xilinx_timer_tlr_cycles" [drivers/pwm/pwm-xilinx.ko] undefined!
>>> ERROR: modpost: "xilinx_timer_common_init" [drivers/pwm/pwm-xilinx.ko] undefined!
>>> ERROR: modpost: "xilinx_timer_get_period" [drivers/pwm/pwm-xilinx.ko] undefined!

Looks like I forgot my EXPORT_SYMBOLs. Will be fixed in v6.


> ---
> 0-DAY CI Kernel Test Service, Intel Corporation

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