[kbuild-all] drivers/dma/mmp_tdma.c:650:10: warning: cast to smaller integer type 'enum mmp_tdma_type' from 'const void *'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: c8c109546a19613d323a319d0c921cb1f317e629 commit: 9f3c14d4433b98c87f958128045539f297a2fa6d dmaengine: mmp_tdma: Allow building as a module date: 10 months ago config: riscv-randconfig-r042-20211111 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 63ef0e17e28827eae53133b3467bdac7d9729318) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 9f3c14d4433b98c87f958128045539f297a2fa6d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): type = (enum mmp_tdma_type) of_id->data; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +650 drivers/dma/mmp_tdma.c f1a7757008b810 Zhangfei Gao 2012-09-03 636 463a1f8b3ceebe Bill Pemberton 2012-11-19 637 static int mmp_tdma_probe(struct platform_device *pdev) c6da0ba8dfc826 Zhangfei Gao 2012-06-15 638 { f1a7757008b810 Zhangfei Gao 2012-09-03 639 enum mmp_tdma_type type; f1a7757008b810 Zhangfei Gao 2012-09-03 640 const struct of_device_id *of_id; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 641 struct mmp_tdma_device *tdev; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 642 struct resource *iores; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 643 int i, ret; f1a7757008b810 Zhangfei Gao 2012-09-03 644 int irq = 0, irq_num = 0; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 645 int chan_num = TDMA_CHANNEL_NUM; 1eed601a5b02a1 Qiao Zhou 2015-03-03 646 struct gen_pool *pool = NULL; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 647 f1a7757008b810 Zhangfei Gao 2012-09-03 648 of_id = of_match_device(mmp_tdma_dt_ids, &pdev->dev); f1a7757008b810 Zhangfei Gao 2012-09-03 649 if (of_id) f1a7757008b810 Zhangfei Gao 2012-09-03 @650 type = (enum mmp_tdma_type) of_id->data; f1a7757008b810 Zhangfei Gao 2012-09-03 651 else f1a7757008b810 Zhangfei Gao 2012-09-03 652 type = platform_get_device_id(pdev)->driver_data; f1a7757008b810 Zhangfei Gao 2012-09-03 653 c6da0ba8dfc826 Zhangfei Gao 2012-06-15 654 /* always have couple channels */ c6da0ba8dfc826 Zhangfei Gao 2012-06-15 655 tdev = devm_kzalloc(&pdev->dev, sizeof(*tdev), GFP_KERNEL); c6da0ba8dfc826 Zhangfei Gao 2012-06-15 656 if (!tdev) c6da0ba8dfc826 Zhangfei Gao 2012-06-15 657 return -ENOMEM; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 658 c6da0ba8dfc826 Zhangfei Gao 2012-06-15 659 tdev->dev = &pdev->dev; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 660 f1a7757008b810 Zhangfei Gao 2012-09-03 661 for (i = 0; i < chan_num; i++) { f1a7757008b810 Zhangfei Gao 2012-09-03 662 if (platform_get_irq(pdev, i) > 0) f1a7757008b810 Zhangfei Gao 2012-09-03 663 irq_num++; f1a7757008b810 Zhangfei Gao 2012-09-03 664 } c6da0ba8dfc826 Zhangfei Gao 2012-06-15 665 c6da0ba8dfc826 Zhangfei Gao 2012-06-15 666 iores = platform_get_resource(pdev, IORESOURCE_MEM, 0); 7331205a9662a7 Thierry Reding 2013-01-21 667 tdev->base = devm_ioremap_resource(&pdev->dev, iores); 7331205a9662a7 Thierry Reding 2013-01-21 668 if (IS_ERR(tdev->base)) 7331205a9662a7 Thierry Reding 2013-01-21 669 return PTR_ERR(tdev->base); c6da0ba8dfc826 Zhangfei Gao 2012-06-15 670 f1a7757008b810 Zhangfei Gao 2012-09-03 671 INIT_LIST_HEAD(&tdev->device.channels); f1a7757008b810 Zhangfei Gao 2012-09-03 672 3b0f4a54f247b2 Nenghua Cao 2013-12-13 673 if (pdev->dev.of_node) abdd4a7025282f Vladimir Zapolskiy 2015-06-30 674 pool = of_gen_pool_get(pdev->dev.of_node, "asram", 0); 3b0f4a54f247b2 Nenghua Cao 2013-12-13 675 else 3b0f4a54f247b2 Nenghua Cao 2013-12-13 676 pool = sram_get_gpool("asram"); 3b0f4a54f247b2 Nenghua Cao 2013-12-13 677 if (!pool) { 3b0f4a54f247b2 Nenghua Cao 2013-12-13 678 dev_err(&pdev->dev, "asram pool not available\n"); 3b0f4a54f247b2 Nenghua Cao 2013-12-13 679 return -ENOMEM; 3b0f4a54f247b2 Nenghua Cao 2013-12-13 680 } 3b0f4a54f247b2 Nenghua Cao 2013-12-13 681 f1a7757008b810 Zhangfei Gao 2012-09-03 682 if (irq_num != chan_num) { f1a7757008b810 Zhangfei Gao 2012-09-03 683 irq = platform_get_irq(pdev, 0); f1a7757008b810 Zhangfei Gao 2012-09-03 684 ret = devm_request_irq(&pdev->dev, irq, c09a7ce668a666 Lubomir Rintel 2020-06-01 685 mmp_tdma_int_handler, IRQF_SHARED, "tdma", tdev); c6da0ba8dfc826 Zhangfei Gao 2012-06-15 686 if (ret) c6da0ba8dfc826 Zhangfei Gao 2012-06-15 687 return ret; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 688 } c6da0ba8dfc826 Zhangfei Gao 2012-06-15 689 c6da0ba8dfc826 Zhangfei Gao 2012-06-15 690 /* initialize channel parameters */ c6da0ba8dfc826 Zhangfei Gao 2012-06-15 691 for (i = 0; i < chan_num; i++) { f1a7757008b810 Zhangfei Gao 2012-09-03 692 irq = (irq_num != chan_num) ? 0 : platform_get_irq(pdev, i); 3b0f4a54f247b2 Nenghua Cao 2013-12-13 693 ret = mmp_tdma_chan_init(tdev, i, irq, type, pool); c6da0ba8dfc826 Zhangfei Gao 2012-06-15 694 if (ret) c6da0ba8dfc826 Zhangfei Gao 2012-06-15 695 return ret; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 696 } c6da0ba8dfc826 Zhangfei Gao 2012-06-15 697 f1a7757008b810 Zhangfei Gao 2012-09-03 698 dma_cap_set(DMA_SLAVE, tdev->device.cap_mask); f1a7757008b810 Zhangfei Gao 2012-09-03 699 dma_cap_set(DMA_CYCLIC, tdev->device.cap_mask); c6da0ba8dfc826 Zhangfei Gao 2012-06-15 700 tdev->device.dev = &pdev->dev; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 701 tdev->device.device_alloc_chan_resources = c6da0ba8dfc826 Zhangfei Gao 2012-06-15 702 mmp_tdma_alloc_chan_resources; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 703 tdev->device.device_free_chan_resources = c6da0ba8dfc826 Zhangfei Gao 2012-06-15 704 mmp_tdma_free_chan_resources; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 705 tdev->device.device_prep_dma_cyclic = mmp_tdma_prep_dma_cyclic; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 706 tdev->device.device_tx_status = mmp_tdma_tx_status; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 707 tdev->device.device_issue_pending = mmp_tdma_issue_pending; f43a6fd400ba66 Maxime Ripard 2014-11-17 708 tdev->device.device_config = mmp_tdma_config; f43a6fd400ba66 Maxime Ripard 2014-11-17 709 tdev->device.device_pause = mmp_tdma_pause_chan; f43a6fd400ba66 Maxime Ripard 2014-11-17 710 tdev->device.device_resume = mmp_tdma_resume_chan; f43a6fd400ba66 Maxime Ripard 2014-11-17 711 tdev->device.device_terminate_all = mmp_tdma_terminate_all; 77a68e56aae141 Maxime Ripard 2015-07-20 712 tdev->device.copy_align = DMAENGINE_ALIGN_8_BYTES; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 713 baed6b34ceea87 Lubomir Rintel 2020-04-19 714 tdev->device.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); baed6b34ceea87 Lubomir Rintel 2020-04-19 715 if (type == MMP_AUD_TDMA) { baed6b34ceea87 Lubomir Rintel 2020-04-19 716 tdev->device.max_burst = SZ_128; baed6b34ceea87 Lubomir Rintel 2020-04-19 717 tdev->device.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES); baed6b34ceea87 Lubomir Rintel 2020-04-19 718 tdev->device.dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES); baed6b34ceea87 Lubomir Rintel 2020-04-19 719 } else if (type == PXA910_SQU) { baed6b34ceea87 Lubomir Rintel 2020-04-19 720 tdev->device.max_burst = SZ_32; baed6b34ceea87 Lubomir Rintel 2020-04-19 721 } baed6b34ceea87 Lubomir Rintel 2020-04-19 722 tdev->device.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST; baed6b34ceea87 Lubomir Rintel 2020-04-19 723 tdev->device.descriptor_reuse = true; baed6b34ceea87 Lubomir Rintel 2020-04-19 724 c6da0ba8dfc826 Zhangfei Gao 2012-06-15 725 dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); c6da0ba8dfc826 Zhangfei Gao 2012-06-15 726 platform_set_drvdata(pdev, tdev); c6da0ba8dfc826 Zhangfei Gao 2012-06-15 727 a5f99a95869e30 Huang Shijie 2018-08-06 728 ret = dmaenginem_async_device_register(&tdev->device); c6da0ba8dfc826 Zhangfei Gao 2012-06-15 729 if (ret) { c6da0ba8dfc826 Zhangfei Gao 2012-06-15 730 dev_err(tdev->device.dev, "unable to register\n"); c6da0ba8dfc826 Zhangfei Gao 2012-06-15 731 return ret; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 732 } c6da0ba8dfc826 Zhangfei Gao 2012-06-15 733 7dedc002c0ec67 Nenghua Cao 2014-01-20 734 if (pdev->dev.of_node) { 7dedc002c0ec67 Nenghua Cao 2014-01-20 735 ret = of_dma_controller_register(pdev->dev.of_node, 7dedc002c0ec67 Nenghua Cao 2014-01-20 736 mmp_tdma_xlate, tdev); 7dedc002c0ec67 Nenghua Cao 2014-01-20 737 if (ret) { 7dedc002c0ec67 Nenghua Cao 2014-01-20 738 dev_err(tdev->device.dev, 7dedc002c0ec67 Nenghua Cao 2014-01-20 739 "failed to register controller\n"); a5f99a95869e30 Huang Shijie 2018-08-06 740 return ret; 7dedc002c0ec67 Nenghua Cao 2014-01-20 741 } 7dedc002c0ec67 Nenghua Cao 2014-01-20 742 } 7dedc002c0ec67 Nenghua Cao 2014-01-20 743 c6da0ba8dfc826 Zhangfei Gao 2012-06-15 744 dev_info(tdev->device.dev, "initialized\n"); c6da0ba8dfc826 Zhangfei Gao 2012-06-15 745 return 0; c6da0ba8dfc826 Zhangfei Gao 2012-06-15 746 } c6da0ba8dfc826 Zhangfei Gao 2012-06-15 747 :::::: The code at line 650 was first introduced by commit :::::: f1a7757008b810217b2380d01b740244f21c09bd dmaengine: mmp_tdma: add dt support :::::: TO: Zhangfei Gao <zhangfei.gao(a)marvell.com&gt; :::::: CC: Vinod Koul <vinod.koul(a)linux.intel.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org