Re: [PATCH V0 1/1] soc: qcom: dcc: Add QAD, Cti-trigger and Bootconfig support for DCC

[Souradeep Chowdhury]

On 1/9/2023 8:58 PM, kernel test robot wrote:
> Hi Souradeep,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on next-20230109]
> [cannot apply to clk/clk-next soc/for-next linus/master v6.2-rc3 v6.2-rc2 v6.2-rc1 v6.2-rc3]
> [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
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Souradeep-Chowdhury/soc-qcom-dcc-Add-QAD-Cti-trigger-and-Bootconfig-support-for-DCC/20230109-181920
> patch link:    https://lore.kernel.org/r/8337e5672559b197a13699d2c0ee69f18f6167a6.1673247689.git.quic_schowdhu%40quicinc.com
> patch subject: [PATCH V0 1/1] soc: qcom: dcc: Add QAD, Cti-trigger and Bootconfig support for DCC
> config: powerpc-allmodconfig
> compiler: powerpc-linux-gcc (GCC) 12.1.0
> 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
>          # https://github.com/intel-lab-lkp/linux/commit/887ce0321641a448b3c53ad5e3f5b05a47c83ae9
>          git remote add linux-review https://github.com/intel-lab-lkp/linux
>          git fetch --no-tags linux-review Souradeep-Chowdhury/soc-qcom-dcc-Add-QAD-Cti-trigger-and-Bootconfig-support-for-DCC/20230109-181920
>          git checkout 887ce0321641a448b3c53ad5e3f5b05a47c83ae9
>          # save the config file
>          mkdir build_dir && cp config build_dir/.config
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash
>
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
>
> All errors (new ones prefixed by >>, old ones prefixed by <<):
>
> > > ERROR: modpost: "xbc_node_get_child" [drivers/soc/qcom/dcc.ko] undefined!
> > > ERROR: modpost: "xbc_node_get_next" [drivers/soc/qcom/dcc.ko] undefined!
> > > ERROR: modpost: "xbc_node_find_value" [drivers/soc/qcom/dcc.ko] undefined!
> > > ERROR: modpost: "xbc_node_get_data" [drivers/soc/qcom/dcc.ko] undefined!
> > > ERROR: modpost: "xbc_node_find_subkey" [drivers/soc/qcom/dcc.ko] undefined!

This error is getting thrown again because 'QCOM_DCC' is declared as 
tristate. Since DCC is using bootconfig apis which belongs to the __init 
section of the kernel, it can no longer be used as an external module to 
link with bootconfig apis. Will be changing it to bool in the next 
version. Thank you.