tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 02ddfb981de88a2c15621115dd7be2431252c568 commit: dc6fcaaba5a5411237d042a26c4d46689f3346bb drm/omap: Allow build with COMPILE_TEST=y date: 12 months ago config: arm64-randconfig-004-20250426 (https://download.01.org/0day-ci/archive/20250426/202504262148.7C3el3ws-lkp@xxxxxxxxx/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250426/202504262148.7C3el3ws-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202504262148.7C3el3ws-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/omapdrm/omap_gem.c:45: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * dma_addr contains the buffer DMA address. It is valid for >> drivers/gpu/drm/omapdrm/omap_gem.c:68: warning: Cannot understand * # of users on line 68 - I thought it was a doc line drivers/gpu/drm/omapdrm/omap_gem.c:73: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * If the buffer has been imported from a dmabuf the OMAP_DB_DMABUF flag drivers/gpu/drm/omapdrm/omap_gem.c:79: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * tiler block used when buffer is remapped in DMM/TILER. drivers/gpu/drm/omapdrm/omap_gem.c:84: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Array of backing pages, if allocated. Note that pages are never drivers/gpu/drm/omapdrm/omap_gem.c:93: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Virtual address, if mapped. -- >> drivers/gpu/drm/omapdrm/dss/pll.c:466: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * read the register back to ensure the write is vim +45 drivers/gpu/drm/omapdrm/omap_gem.c cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 27 cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 28 struct omap_gem_object { cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 29 struct drm_gem_object base; cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 30 f6b6036e56ca173 drivers/staging/omapdrm/omap_gem.c Rob Clark 2012-03-05 31 struct list_head mm_list; f6b6036e56ca173 drivers/staging/omapdrm/omap_gem.c Rob Clark 2012-03-05 32 dfe9cfccb264889 drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2018-02-11 33 u32 flags; cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 34 f7f9f4536a09f9f drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-05 35 /** width/height for tiled formats (rounded up to slot boundaries) */ dfe9cfccb264889 drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2018-02-11 36 u16 width, height; f7f9f4536a09f9f drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-05 37 a6a918274116d8e drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-09 38 /** roll applied when mapping to DMM */ dfe9cfccb264889 drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2018-02-11 39 u32 roll; a6a918274116d8e drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-09 40 1948d28db6215d0 drivers/gpu/drm/omapdrm/omap_gem.c Ivaylo Dimitrov 2022-01-19 41 /** protects pin_cnt, block, pages, dma_addrs and vaddr */ 3cbd0c587b129be drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2018-05-26 42 struct mutex lock; 3cbd0c587b129be drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2018-05-26 43 cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 44 /** 16869083b9bec8c drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2017-04-21 @45 * dma_addr contains the buffer DMA address. It is valid for cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 46 * b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 47 * - buffers allocated through the DMA mapping API (with the b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 48 * OMAP_BO_MEM_DMA_API flag set) b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 49 * b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 50 * - buffers imported from dmabuf (with the OMAP_BO_MEM_DMABUF flag set) f8cc37c59731c88 drivers/gpu/drm/omapdrm/omap_gem.c Andrew Davis 2023-11-13 51 * if they are physically contiguous b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 52 * 1948d28db6215d0 drivers/gpu/drm/omapdrm/omap_gem.c Ivaylo Dimitrov 2022-01-19 53 * - buffers mapped through the TILER when pin_cnt is not zero, in which 1948d28db6215d0 drivers/gpu/drm/omapdrm/omap_gem.c Ivaylo Dimitrov 2022-01-19 54 * case the DMA address points to the TILER aperture b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 55 * b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 56 * Physically contiguous buffers have their DMA address equal to the b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 57 * physical address as we don't remap those buffers through the TILER. b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 58 * b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 59 * Buffers mapped to the TILER have their DMA address pointing to the 1948d28db6215d0 drivers/gpu/drm/omapdrm/omap_gem.c Ivaylo Dimitrov 2022-01-19 60 * TILER aperture. As TILER mappings are refcounted (through pin_cnt) 1948d28db6215d0 drivers/gpu/drm/omapdrm/omap_gem.c Ivaylo Dimitrov 2022-01-19 61 * the DMA address must be accessed through omap_gem_pin() to ensure 1948d28db6215d0 drivers/gpu/drm/omapdrm/omap_gem.c Ivaylo Dimitrov 2022-01-19 62 * that the mapping won't disappear unexpectedly. References must be 1948d28db6215d0 drivers/gpu/drm/omapdrm/omap_gem.c Ivaylo Dimitrov 2022-01-19 63 * released with omap_gem_unpin(). cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 64 */ 16869083b9bec8c drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2017-04-21 65 dma_addr_t dma_addr; cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 66 f7f9f4536a09f9f drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-05 67 /** 1948d28db6215d0 drivers/gpu/drm/omapdrm/omap_gem.c Ivaylo Dimitrov 2022-01-19 @68 * # of users f7f9f4536a09f9f drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-05 69 */ 1948d28db6215d0 drivers/gpu/drm/omapdrm/omap_gem.c Ivaylo Dimitrov 2022-01-19 70 refcount_t pin_cnt; f7f9f4536a09f9f drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-05 71 b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 72 /** b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 73 * If the buffer has been imported from a dmabuf the OMAP_DB_DMABUF flag b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 74 * is set and the sgt field is valid. b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 75 */ b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 76 struct sg_table *sgt; b22e6690a3f656e drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2015-12-14 77 f7f9f4536a09f9f drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-05 78 /** f7f9f4536a09f9f drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-05 79 * tiler block used when buffer is remapped in DMM/TILER. f7f9f4536a09f9f drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-05 80 */ f7f9f4536a09f9f drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-05 81 struct tiler_block *block; f7f9f4536a09f9f drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-05 82 cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 83 /** cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 84 * Array of backing pages, if allocated. Note that pages are never cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 85 * allocated for buffers originally allocated from contiguous memory cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 86 */ cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 87 struct page **pages; cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 88 f3bc9d24cb4a221 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-20 89 /** addresses corresponding to pages in above array */ 57c22f7cc24ab62 drivers/gpu/drm/omapdrm/omap_gem.c Laurent Pinchart 2017-04-21 90 dma_addr_t *dma_addrs; f3bc9d24cb4a221 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-12-20 91 cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 92 /** cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 93 * Virtual address, if mapped. cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 94 */ cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 95 void *vaddr; cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 96 }; cd5351f4d2b1b88 drivers/staging/omapdrm/omap_gem.c Rob Clark 2011-11-12 97 :::::: The code at line 45 was first introduced by commit :::::: 16869083b9bec8c1090442bd176a5b376708aba0 drm: omapdrm: Rename occurrences of paddr to dma_addr :::::: TO: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> :::::: CC: Tomi Valkeinen <tomi.valkeinen@xxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
