Re: [RESEND Patch v6 2/2] fpga: dfl: fme: add performance reporting support

[kbuild test robot <lkp@intel.com>]

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Hi Wu,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.5-rc6 next-20200117]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Wu-Hao/add-performance-reporting-support-to-FPGA-DFL-drivers/20200118-043806
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 13b2668d6fc95dcecd11e4f86f47be24fda7da1f
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=sh 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   drivers//fpga/dfl-fme-perf.c: In function 'fme_perf_fabric_events_visible':
>> drivers//fpga/dfl-fme-perf.c:600:8: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     var = (u64)eattr->var;
           ^

vim +600 drivers//fpga/dfl-fme-perf.c

   590	
   591	static umode_t fme_perf_fabric_events_visible(struct kobject *kobj,
   592						      struct attribute *attr, int n)
   593	{
   594		struct pmu *pmu = dev_get_drvdata(kobj_to_dev(kobj));
   595		struct fme_perf_priv *priv = to_fme_perf_priv(pmu);
   596		struct dev_ext_attribute *eattr;
   597		u64 var;
   598	
   599		eattr = container_of(attr, struct dev_ext_attribute, attr.attr);
 > 600		var = (u64)eattr->var;
   601	
   602		if (is_fabric_event_supported(priv, get_event(var), get_portid(var)))
   603			return attr->mode;
   604	
   605		return 0;
   606	}
   607	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

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