Hi Christian, I love your patch! Yet something to improve:
[auto build test ERROR on drm/drm-next] [also build test ERROR on v4.17-rc2 next-20180424] [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/Christian-K-nig/dma-buf-use-parameter-structure-for-dma_buf_attach/20180413-080639 base: git://people.freedesktop.org/~airlied/linux.git drm-next config: powerpc64-allmodconfig (attached as .config) compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: 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 make.cross ARCH=powerpc64 All errors (new ones prefixed by >>): drivers/staging/media/tegra-vde/tegra-vde.c: In function 'tegra_vde_attach_dmabuf': >> drivers/staging/media/tegra-vde/tegra-vde.c:534:13: error: 'dmabuf' >> undeclared (first use in this function); did you mean 'dma_buf'? .dmabuf = dmabuf ^~~~~~ dma_buf drivers/staging/media/tegra-vde/tegra-vde.c:534:13: note: each undeclared identifier is reported only once for each function it appears in vim +534 drivers/staging/media/tegra-vde/tegra-vde.c 521 522 static int tegra_vde_attach_dmabuf(struct device *dev, 523 int fd, 524 unsigned long offset, 525 unsigned int min_size, 526 struct dma_buf_attachment **a, 527 dma_addr_t *addr, 528 struct sg_table **s, 529 size_t *size, 530 enum dma_data_direction dma_dir) 531 { 532 struct dma_buf_attach_info attach_info = { 533 .dev = dev, > 534 .dmabuf = dmabuf 535 }; 536 struct dma_buf_attachment *attachment; 537 struct dma_buf *dmabuf; 538 struct sg_table *sgt; 539 int err; 540 541 dmabuf = dma_buf_get(fd); 542 if (IS_ERR(dmabuf)) { 543 dev_err(dev, "Invalid dmabuf FD\n"); 544 return PTR_ERR(dmabuf); 545 } 546 547 if ((u64)offset + min_size > dmabuf->size) { 548 dev_err(dev, "Too small dmabuf size %zu @0x%lX, " 549 "should be at least %d\n", 550 dmabuf->size, offset, min_size); 551 return -EINVAL; 552 } 553 554 attachment = dma_buf_attach(&attach_info); 555 if (IS_ERR(attachment)) { 556 dev_err(dev, "Failed to attach dmabuf\n"); 557 err = PTR_ERR(attachment); 558 goto err_put; 559 } 560 561 sgt = dma_buf_map_attachment(attachment, dma_dir); 562 if (IS_ERR(sgt)) { 563 dev_err(dev, "Failed to get dmabufs sg_table\n"); 564 err = PTR_ERR(sgt); 565 goto err_detach; 566 } 567 568 if (sgt->nents != 1) { 569 dev_err(dev, "Sparse DMA region is unsupported\n"); 570 err = -EINVAL; 571 goto err_unmap; 572 } 573 574 *addr = sg_dma_address(sgt->sgl) + offset; 575 *a = attachment; 576 *s = sgt; 577 578 if (size) 579 *size = dmabuf->size - offset; 580 581 return 0; 582 583 err_unmap: 584 dma_buf_unmap_attachment(attachment, sgt, dma_dir); 585 err_detach: 586 dma_buf_detach(dmabuf, attachment); 587 err_put: 588 dma_buf_put(dmabuf); 589 590 return err; 591 } 592 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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