linux-kernel - Re: arch/arm64/net/bpf_jit_comp.c:1683:16: sparse: sparse: incorrect type in assignment (different base types)

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Date:   Mon, 8 Aug 2022 11:32:05 +0800
From:   Xu Kuohai <xukuohai@...wei.com>
To:     Daniel Borkmann <daniel@...earbox.net>,
        kernel test robot <lkp@...el.com>
CC:     <kbuild-all@...ts.01.org>, <linux-kernel@...r.kernel.org>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>
Subject: Re: arch/arm64/net/bpf_jit_comp.c:1683:16: sparse: sparse: incorrect
 type in assignment (different base types)

On 8/6/2022 4:55 PM, Daniel Borkmann wrote:
> On 8/6/22 2:46 AM, kernel test robot wrote:
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head:   74cae210a335d159f2eb822e261adee905b6951a
>> commit: efc9909fdce00a827a37609628223cd45bf95d0b bpf, arm64: Add bpf trampoline for arm64
>> date:   4 weeks ago
>> config: arm64-randconfig-s051-20220805 
>> (https://download.01.org/0day-ci/archive/20220806/202208060800.EiP6qXW9-lkp@intel.com/config)
>> compiler: aarch64-linux-gcc (GCC) 12.1.0
>> reproduce:
>>          wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
>> ~/bin/make.cross
>>          chmod +x ~/bin/make.cross
>>          # apt-get install sparse
>>          # sparse version: v0.6.4-39-gce1a6720-dirty
>>          # 
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=efc9909fdce00a827a37609628223cd45bf95d0b 
>>
>>          git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>>          git fetch --no-tags linus master
>>          git checkout efc9909fdce00a827a37609628223cd45bf95d0b
>>          # save the config file
>>          mkdir build_dir && cp config build_dir/.config
>>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 
>> CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/net/
> 
> Xu, please take a look and send a fix, thanks!
> 

Sorry for the delay, I'll send a fix today.

>> If you fix the issue, kindly add following tag where applicable
>> Reported-by: kernel test robot <lkp@...el.com>