Hi Marek, I love your patch! Yet something to improve: [auto build test ERROR on next-20200618] [also build test ERROR on v5.8-rc1] [cannot apply to linuxtv-media/master staging/staging-testing drm-exynos/exynos-drm-next drm-intel/for-linux-next linus/master v5.8-rc1 v5.7 v5.7-rc7] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Marek-Szyprowski/DRM-fix-struct-sg_table-nents-vs-orig_nents-misuse/20200619-184302 base: ce2cc8efd7a40cbd17841add878cb691d0ce0bba config: c6x-allyesconfig (attached as .config) compiler: c6x-elf-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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=c6x 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/staging/media/tegra-vde/iommu.c: In function 'tegra_vde_iommu_map': >> drivers/staging/media/tegra-vde/iommu.c:39:9: error: implicit declaration of function 'iommu_map_sgtable'; did you mean 'dma_map_sgtable'? [-Werror=implicit-function-declaration] 39 | size = iommu_map_sgtable(vde->domain, addr, sgt, | ^~~~~~~~~~~~~~~~~ | dma_map_sgtable cc1: some warnings being treated as errors vim +39 drivers/staging/media/tegra-vde/iommu.c 18 19 int tegra_vde_iommu_map(struct tegra_vde *vde, 20 struct sg_table *sgt, 21 struct iova **iovap, 22 size_t size) 23 { 24 struct iova *iova; 25 unsigned long shift; 26 unsigned long end; 27 dma_addr_t addr; 28 29 end = vde->domain->geometry.aperture_end; 30 size = iova_align(&vde->iova, size); 31 shift = iova_shift(&vde->iova); 32 33 iova = alloc_iova(&vde->iova, size >> shift, end >> shift, true); 34 if (!iova) 35 return -ENOMEM; 36 37 addr = iova_dma_addr(&vde->iova, iova); 38 > 39 size = iommu_map_sgtable(vde->domain, addr, sgt, 40 IOMMU_READ | IOMMU_WRITE); 41 if (!size) { 42 __free_iova(&vde->iova, iova); 43 return -ENXIO; 44 } 45 46 *iovap = iova; 47 48 return 0; 49 } 50 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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