Hi Marek, I love your patch! Perhaps something to improve: [auto build test WARNING on next-20200618] [also build test WARNING 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/20200619-000417 base: ce2cc8efd7a40cbd17841add878cb691d0ce0bba config: x86_64-randconfig-s021-20200618 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-rc1-10-gc17b1b06-dirty # save the attached .config to linux build tree make W=1 C=1 ARCH=x86_64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c:365:38: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected struct sg_table *sgt @@ got struct sg_table sgt @@ >> drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c:365:38: sparse: expected struct sg_table *sgt >> drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c:365:38: sparse: got struct sg_table sgt drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c:386:43: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected struct sg_table *sgt @@ got struct sg_table sgt @@ drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c:386:43: sparse: expected struct sg_table *sgt drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c:386:43: sparse: got struct sg_table sgt vim +365 drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c 352 353 /** 354 * vmw_ttm_unmap_from_dma - unmap device addresses previsouly mapped for 355 * TTM pages 356 * 357 * @vmw_tt: Pointer to a struct vmw_ttm_backend 358 * 359 * Used to free dma mappings previously mapped by vmw_ttm_map_for_dma. 360 */ 361 static void vmw_ttm_unmap_from_dma(struct vmw_ttm_tt *vmw_tt) 362 { 363 struct device *dev = vmw_tt->dev_priv->dev->dev; 364 > 365 dma_unmap_sgtable(dev, vmw_tt->sgt, DMA_BIDIRECTIONAL, 0); 366 vmw_tt->sgt.nents = vmw_tt->sgt.orig_nents; 367 } 368 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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