Hi Johan, [auto build test ERROR on driver-core/driver-core-testing] [also build test ERROR on v4.13-rc3 next-20170804] [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/20170804-155414 config: x86_64-randconfig-a0-08061415 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/base/dma-mapping.o: In function `dma_configure': >> (.text+0x7de): undefined reference to `usb_bus_type' drivers/base/dma-mapping.o: In function `dma_deconfigure': (.text+0x8ca): undefined reference to `usb_bus_type' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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