Re: [PATCH 3/5] swiotlb: Add alloc and free APIs

[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-20200429]
[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: i386-randconfig-b002-20200429 (attached as .config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

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

All errors (new ones prefixed by >>):

   In file included from drivers/gpu/drm/i915/i915_scatterlist.h:12:0,
                    from drivers/gpu/drm/i915/i915_scatterlist.c:7:
   include/linux/swiotlb.h: In function 'swiotlb_alloc':
>> include/linux/swiotlb.h:231:9: error: 'DMA_MAPPING_ERROR' undeclared (first use in this function); did you mean 'APM_NO_ERROR'?
     return DMA_MAPPING_ERROR;
            ^~~~~~~~~~~~~~~~~
            APM_NO_ERROR
   include/linux/swiotlb.h:231:9: note: each undeclared identifier is reported only once for each function it appears in

vim +231 include/linux/swiotlb.h

   226	
   227	static inline phys_addr_t swiotlb_alloc(struct swiotlb_pool *pool,
   228			size_t alloc_size, unsigned long tbl_dma_addr,
   229			unsigned long mask)
   230	{
 > 231		return DMA_MAPPING_ERROR;
   232	}
   233	

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

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