On Fri, Aug 04, 2017 at 03:40:42AM +0800, kbuild test robot wrote: > Hi Johan, > > [auto build test ERROR on driver-core/driver-core-testing] > [also build test ERROR on v4.13-rc3 next-20170803] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Johan-Hovold/dma-mapping-skip-USB-devices-when-configuring-DMA-during-probe/20170804-014620 > config: microblaze-mmu_defconfig (attached as .config) > compiler: microblaze-linux-gcc (GCC) 6.2.0 > reproduce: > wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # save the attached .config to linux build tree > make.cross ARCH=microblaze > > All errors (new ones prefixed by >>): > > drivers/base/dma-mapping.o: In function `dma_configure': > >> drivers/base/dma-mapping.c:350: undefined reference to `usb_bus_type' > drivers/base/dma-mapping.o: In function `dma_deconfigure': > drivers/base/dma-mapping.c:377: undefined reference to `usb_bus_type' > net/sunrpc/stats.o: In function `rpc_print_iostats': > net/sunrpc/stats.c:206: undefined reference to `_GLOBAL_OFFSET_TABLE_' > scripts/link-vmlinux.sh: line 93: 76193 Segmentation fault ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} -T ${lds} ${objects} Thanks for the report. Alan Stern pointed this out during review, so this patch has already been superseded. Johan