tree: https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git master head: 636a9f7dbb24610805c1466de5be6411cc25fcf1 commit: 140e4a03ab203be8183a202601cd6d0ecd6f08bc [83/110] Merge remote-tracking branch 'iommu/next' into renesas-drivers config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?id=140e4a03ab203be8183a202601cd6d0ecd6f08bc git remote add renesas-drivers https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git git fetch --no-tags renesas-drivers master git checkout 140e4a03ab203be8183a202601cd6d0ecd6f08bc # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/gpu/drm/msm/msm_iommu.c: In function 'msm_iommu_pagetable_unmap': >> drivers/gpu/drm/msm/msm_iommu.c:46:2: error: implicit declaration of function 'iommu_flush_tlb_all'; did you mean 'iommu_flush_iotlb_all'? [-Werror=implicit-function-declaration] 46 | iommu_flush_tlb_all(to_msm_iommu(pagetable->parent)->domain); | ^~~~~~~~~~~~~~~~~~~ | iommu_flush_iotlb_all cc1: some warnings being treated as errors vim +46 drivers/gpu/drm/msm/msm_iommu.c b145c6e65eb05e Jordan Crouse 2020-08-17 31 b145c6e65eb05e Jordan Crouse 2020-08-17 32 static int msm_iommu_pagetable_unmap(struct msm_mmu *mmu, u64 iova, b145c6e65eb05e Jordan Crouse 2020-08-17 33 size_t size) b145c6e65eb05e Jordan Crouse 2020-08-17 34 { b145c6e65eb05e Jordan Crouse 2020-08-17 35 struct msm_iommu_pagetable *pagetable = to_pagetable(mmu); b145c6e65eb05e Jordan Crouse 2020-08-17 36 struct io_pgtable_ops *ops = pagetable->pgtbl_ops; b145c6e65eb05e Jordan Crouse 2020-08-17 37 size_t unmapped = 0; b145c6e65eb05e Jordan Crouse 2020-08-17 38 b145c6e65eb05e Jordan Crouse 2020-08-17 39 /* Unmap the block one page at a time */ b145c6e65eb05e Jordan Crouse 2020-08-17 40 while (size) { b145c6e65eb05e Jordan Crouse 2020-08-17 41 unmapped += ops->unmap(ops, iova, 4096, NULL); b145c6e65eb05e Jordan Crouse 2020-08-17 42 iova += 4096; b145c6e65eb05e Jordan Crouse 2020-08-17 43 size -= 4096; b145c6e65eb05e Jordan Crouse 2020-08-17 44 } b145c6e65eb05e Jordan Crouse 2020-08-17 45 b145c6e65eb05e Jordan Crouse 2020-08-17 @46 iommu_flush_tlb_all(to_msm_iommu(pagetable->parent)->domain); b145c6e65eb05e Jordan Crouse 2020-08-17 47 b145c6e65eb05e Jordan Crouse 2020-08-17 48 return (unmapped == size) ? 0 : -EINVAL; b145c6e65eb05e Jordan Crouse 2020-08-17 49 } b145c6e65eb05e Jordan Crouse 2020-08-17 50 :::::: The code at line 46 was first introduced by commit :::::: b145c6e65eb05e123097d726aa9d4f5b8f11c401 drm/msm: Add support to create a local pagetable :::::: TO: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx> :::::: CC: Rob Clark <robdclark@xxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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