netdev - Re: [PATCH net-next] net: psample: Introduce stubs to remove NIC driver dependency

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Date:   Wed, 27 Jan 2021 13:49:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     Chris Mi <cmi@...dia.com>, netdev@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, jiri@...dia.com, saeedm@...dia.com,
        Chris Mi <cmi@...dia.com>
Subject: Re: [PATCH net-next] net: psample: Introduce stubs to remove NIC
 driver dependency

Hi Chris,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Chris-Mi/net-psample-Introduce-stubs-to-remove-NIC-driver-dependency/20210127-082451
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 02c26940908fd31bb112e9742adedfb06eca19e1
config: s390-randconfig-s031-20210126 (attached as .config)
compiler: s390-linux-gcc (GCC) 9.3.0
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: v0.6.3-212-g56dbccf5-dirty
        # https://github.com/0day-ci/linux/commit/f2df98afc1a1f1809d9e8a178b2d4766cbca8bf7
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Chris-Mi/net-psample-Introduce-stubs-to-remove-NIC-driver-dependency/20210127-082451
        git checkout f2df98afc1a1f1809d9e8a178b2d4766cbca8bf7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=s390 

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


"sparse warnings: (new ones prefixed by >>)"
>> net/psample/psample.c:468:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> net/psample/psample.c:468:17: sparse:    struct psample_ops const [noderef] __rcu *
>> net/psample/psample.c:468:17: sparse:    struct psample_ops const *
   net/psample/psample.c:474:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
   net/psample/psample.c:474:9: sparse:    struct psample_ops const [noderef] __rcu *
   net/psample/psample.c:474:9: sparse:    struct psample_ops const *

vim +468 net/psample/psample.c

   461	
   462	static int __init psample_module_init(void)
   463	{
   464		int ret;
   465	
   466		ret = genl_register_family(&psample_nl_family);
   467		if (!ret)
 > 468			RCU_INIT_POINTER(psample_ops, &psample_sample_ops);
   469		return ret;
   470	}
   471	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (19518 bytes)