linux-kernel - Re: [PATCH] soc: qcom: llcc: Support chipsets that can write to llcc registers

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Date:   Mon, 17 Aug 2020 19:38:50 +0530
From:   Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
To:     kernel test robot <lkp@...el.com>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Stephen Boyd <swboyd@...omium.org>, kbuild-all@...ts.01.org,
        clang-built-linux@...glegroups.com, linux-arm-msm@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>,
        linux-kernel@...r.kernel.org,
        "Isaac J. Manjarres" <isaacm@...eaurora.org>
Subject: Re: [PATCH] soc: qcom: llcc: Support chipsets that can write to llcc
 registers

On 2020-08-17 18:13, kernel test robot wrote:
> Hi Sai,
> 
> Thank you for the patch! Perhaps something to improve:
> 
> [auto build test WARNING on linux/master]
> [also build test WARNING on linus/master v5.9-rc1 next-20200817]
> [cannot apply to agross-msm/qcom/for-next]
> [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]
> 
> url:
> https://github.com/0day-ci/linux/commits/Sai-Prakash-Ranjan/soc-qcom-llcc-Support-chipsets-that-can-write-to-llcc-registers/20200817-161342
> base:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> bcf876870b95592b52519ed4aafcf9d95999bc9c
> config: mips-randconfig-r006-20200817 (attached as .config)
> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project
> de71b46a519db014ce906a39f8a0e1b235ef1568)
> 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 mips cross compiling tool for clang build
>         # apt-get install binutils-mips-linux-gnu
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 
> ARCH=mips
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All warnings (new ones prefixed by >>):
> 
>    drivers/soc/qcom/llcc-qcom.c:343:28: warning: unused variable 'np'
> [-Wunused-variable]
>            const struct device_node *np = dev_of_node(&pdev->dev);
>                                      ^
>>> drivers/soc/qcom/llcc-qcom.c:324:34: warning: unused variable 
>>> 'qcom_llcc_configure_of_match' [-Wunused-const-variable]
>    static const struct of_device_id qcom_llcc_configure_of_match[] = {
>                                     ^
>    2 warnings generated.
> 

Ok, W=1 build and CONFIG_OF=n, so I need __maybe_unused for 
qcom_llcc_configure_of_match.
Will add and send v2.

Thanks,
Sai

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