Hi Jisheng, I love your patch! Yet something to improve: [auto build test ERROR on pci/next] [also build test ERROR on v4.18 next-20180820] [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/Jisheng-Zhang/PCI-dwc-fix-scheduling-while-atomic-issues/20180821-110033 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next config: arm-omap2plus_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 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=7.2.0 make.cross ARCH=arm All errors (new ones prefixed by >>): drivers/pci/controller/dwc/pcie-designware.o: In function `dw_pcie_prog_outbound_atu': >> pcie-designware.c:(.text+0x32c): undefined reference to `__bad_udelay' pcie-designware.c:(.text+0x424): undefined reference to `__bad_udelay' drivers/pci/controller/dwc/pcie-designware.o: In function `dw_pcie_prog_inbound_atu': pcie-designware.c:(.text+0x538): undefined reference to `__bad_udelay' pcie-designware.c:(.text+0x608): undefined reference to `__bad_udelay' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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