Hi Matthew, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [cannot apply to v5.3-rc1 next-20190724] [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/Matthew-Wilcox/Make-working-with-compound-pages-easier/20190722-030555 config: powerpc64-allyesconfig (attached as .config) compiler: powerpc64-linux-gcc (GCC) 7.4.0 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=7.4.0 make.cross ARCH=powerpc64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> Note: the linux-review/Matthew-Wilcox/Make-working-with-compound-pages-easier/20190722-030555 HEAD e1bb8b04ba8cf861b2610b0ae646ee49cb069568 builds fine. It only hurts bisectibility. All error/warnings (new ones prefixed by >>): drivers/vfio/vfio_iommu_spapr_tce.c: In function 'tce_page_is_contained': >> drivers/vfio/vfio_iommu_spapr_tce.c:193:9: error: called object 'page_shift' is not a function or function pointer return page_shift(compound_head(page)) >= page_shift; ^~~~~~~~~~ drivers/vfio/vfio_iommu_spapr_tce.c:179:16: note: declared here unsigned int page_shift) ^~~~~~~~~~ >> drivers/vfio/vfio_iommu_spapr_tce.c:194:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ vim +/page_shift +193 drivers/vfio/vfio_iommu_spapr_tce.c --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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