Re: [PATCH 5/5] virtio: Add bounce DMA ops

[kbuild test robot]

Hi Srivatsa,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on vhost/linux-next]
[also build test ERROR on xen-tip/linux-next linus/master v5.7-rc3 next-20200428]
[cannot apply to swiotlb/linux-next]
[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/Srivatsa-Vaddagiri/virtio-on-Type-1-hypervisor/20200429-032334
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: s390-randconfig-a001-20200428 (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
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   drivers/virtio/virtio_bounce.c: In function 'virtio_bounce_setup':
>> drivers/virtio/virtio_bounce.c:144:7: error: implicit declaration of function 'of_get_flat_dt_prop' [-Werror=implicit-function-declaration]
     144 |  if (!of_get_flat_dt_prop(node, "no-map", NULL))
         |       ^~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/of_get_flat_dt_prop +144 drivers/virtio/virtio_bounce.c

   139	
   140	static int __init virtio_bounce_setup(struct reserved_mem *rmem)
   141	{
   142		unsigned long node = rmem->fdt_node;
   143	
 > 144		if (!of_get_flat_dt_prop(node, "no-map", NULL))
   145			return -EINVAL;
   146	
   147		return virtio_register_bounce_buffer(rmem->base, rmem->size);
   148	}
   149	

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

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