Re: [RFC PATCH 07/17] fpga: altera-cvp: Drop uses of pci_read_config_*() return value

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

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Hi "Saheed,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on wsa/i2c/for-next]
[also build test WARNING on linus/master v5.8-rc7 next-20200731]
[cannot apply to ras/edac-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/Saheed-O-Bolarinwa/Drop-uses-of-pci_read_config_-return-value/20200801-202925
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next
config: arm64-randconfig-r032-20200801 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 9f21947a331203ee2579db87f1d1ec22a949e20a)
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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

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

All warnings (new ones prefixed by >>):

>> drivers/fpga/altera-cvp.c:100:14: warning: comparison between pointer and integer ('u8 *' (aka 'unsigned char *') and 'u8' (aka 'unsigned char')) [-Wpointer-integer-compare]
           return (val == (u8)~0) ? -ENODEV : 0;
                   ~~~ ^  ~~~~~~
>> drivers/fpga/altera-cvp.c:107:14: warning: comparison between pointer and integer ('u32 *' (aka 'unsigned int *') and 'u32' (aka 'unsigned int')) [-Wpointer-integer-compare]
           return (val == (u32)~0) ? -ENODEV : 0;
                   ~~~ ^  ~~~~~~~
   2 warnings generated.

vim +100 drivers/fpga/altera-cvp.c

    95	
    96	static int altera_read_config_byte(struct altera_cvp_conf *conf,
    97					   int where, u8 *val)
    98	{
    99		pci_read_config_byte(conf->pci_dev, conf->vsec_offset + where, val);
 > 100		return (val == (u8)~0) ? -ENODEV : 0;
   101	}
   102	
   103	static int altera_read_config_dword(struct altera_cvp_conf *conf,
   104					    int where, u32 *val)
   105	{
   106		pci_read_config_dword(conf->pci_dev, conf->vsec_offset + where, val);
 > 107		return (val == (u32)~0) ? -ENODEV : 0;
   108	}
   109	

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

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