Re: [PATCH v2 12/14] net: axienet: Upgrade descriptors to hold 64-bit addresses

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

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Hi Andre,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]
[also build test WARNING on net/master v5.6-rc5 next-20200306]
[cannot apply to xlnx/master]
[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/Andre-Przywara/net-axienet-Update-error-handling-and-add-64-bit-DMA-support/20200310-051546
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git e2f5cb7280f81aa1f3e4d38f51f89995ac14e502
config: m68k-allmodconfig (attached as .config)
compiler: m68k-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=m68k 

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

All warnings (new ones prefixed by >>):

   drivers/net//ethernet/xilinx/xilinx_axienet_main.c: In function 'desc_get_phys_addr':
>> drivers/net//ethernet/xilinx/xilinx_axienet_main.c:170:37: warning: left shift count >= width of type [-Wshift-count-overflow]
      ret |= (dma_addr_t)desc->phys_msb << 32;
                                        ^~

vim +170 drivers/net//ethernet/xilinx/xilinx_axienet_main.c

   163	
   164	static dma_addr_t desc_get_phys_addr(struct axienet_local *lp,
   165					     struct axidma_bd *desc)
   166	{
   167		dma_addr_t ret = desc->phys;
   168	
   169		if (lp->features & XAE_FEATURE_DMA_64BIT)
 > 170			ret |= (dma_addr_t)desc->phys_msb << 32;
   171	
   172		return ret;
   173	}
   174	

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

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