Hi Arnd, I love your patch! Perhaps something to improve: [auto build test WARNING on linuxtv-media/master] [also build test WARNING on v4.17-rc2 next-20180426] [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/Arnd-Bergmann/media-zoran-move-to-dma-mapping-interface/20180426-032120 base: git://linuxtv.org/media_tree.git master reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> drivers/media/pci/zoran/zoran_driver.c:419:33: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned long long [unsigned] [usertype] addr @@ got nsigned long long [unsigned] [usertype] addr @@ drivers/media/pci/zoran/zoran_driver.c:419:33: expected unsigned long long [unsigned] [usertype] addr drivers/media/pci/zoran/zoran_driver.c:419:33: got restricted __le32 [assigned] [usertype] frag_tab vim +419 drivers/media/pci/zoran/zoran_driver.c 395 396 /* free the MJPEG grab buffers */ 397 static void jpg_fbuffer_free(struct zoran_fh *fh) 398 { 399 struct zoran *zr = fh->zr; 400 int i, j, off; 401 unsigned char *mem; 402 __le32 frag_tab; 403 struct zoran_buffer *buffer; 404 405 dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__); 406 407 for (i = 0, buffer = &fh->buffers.buffer[0]; 408 i < fh->buffers.num_buffers; i++, buffer++) { 409 if (!buffer->jpg.frag_tab) 410 continue; 411 412 if (fh->buffers.need_contiguous) { 413 frag_tab = buffer->jpg.frag_tab[0]; 414 415 if (frag_tab) { 416 mem = buffer->jpg.frag_virt_tab[0]; 417 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE) 418 ClearPageReserved(virt_to_page(mem + off)); > 419 dma_unmap_single(&zr->pci_dev->dev, frag_tab, PAGE_SIZE, DMA_FROM_DEVICE); 420 kfree(mem); 421 buffer->jpg.frag_tab[0] = 0; 422 buffer->jpg.frag_tab[1] = 0; 423 } 424 } else { 425 for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) { 426 frag_tab = buffer->jpg.frag_tab[2 * j]; 427 428 if (!frag_tab) 429 break; 430 ClearPageReserved(virt_to_page(buffer->jpg.frag_virt_tab[j])); 431 dma_unmap_single(&zr->pci_dev->dev, le32_to_cpu(frag_tab), PAGE_SIZE, DMA_FROM_DEVICE); 432 free_page((unsigned long)buffer->jpg.frag_virt_tab[j]); 433 buffer->jpg.frag_virt_tab[j] = NULL; 434 buffer->jpg.frag_tab[2 * j] = 0; 435 buffer->jpg.frag_tab[2 * j + 1] = 0; 436 } 437 } 438 439 dma_unmap_single(&zr->pci_dev->dev, buffer->jpg.frag_tab_dma, PAGE_SIZE, DMA_TO_DEVICE); 440 free_page((unsigned long)buffer->jpg.frag_tab); 441 free_page((unsigned long)buffer->jpg.frag_virt_tab); 442 buffer->jpg.frag_virt_tab = NULL; 443 buffer->jpg.frag_tab = NULL; 444 } 445 446 fh->buffers.allocated = 0; 447 } 448 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
