CC: [email protected] BCC: [email protected] TO: Ammar Faizi <[email protected]>
tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android12-5.4 head: 61c005f0f1663789612bbe039932620f51779526 commit: e618a51f562f1f038f31b6a4b4a250c062d70eab [6455/9999] ANDROID: Delete the DMA-BUF attachment sysfs statistics :::::: branch date: 9 weeks ago :::::: commit date: 11 months ago config: x86_64-randconfig-m001 (https://download.01.org/0day-ci/archive/20220603/[email protected]/config) compiler: gcc-11 (Debian 11.3.0-1) 11.3.0 If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> smatch warnings: drivers/dma-buf/dma-buf.c:728 dma_buf_attach() warn: ignoring unreachable code. vim +728 drivers/dma-buf/dma-buf.c d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 677 d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 678 /** d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 679 * dma_buf_attach - Add the device to dma_buf's attachments list; optionally, d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 680 * calls attach() of dma_buf_ops to allow device-specific attach functionality d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 681 * @dmabuf: [in] buffer to attach device to. d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 682 * @dev: [in] device to be attached. d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 683 * 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 684 * Returns struct dma_buf_attachment pointer for this attachment. Attachments 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 685 * must be cleaned up by calling dma_buf_detach(). 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 686 * 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 687 * Returns: 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 688 * 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 689 * A pointer to newly created &dma_buf_attachment on success, or a negative 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 690 * error code wrapped into a pointer on failure. 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 691 * 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 692 * Note that this can fail if the backing storage of @dmabuf is in a place not 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 693 * accessible to @dev, and cannot be moved to a more suitable place. This is 2904a8c1311f028 drivers/dma-buf/dma-buf.c Daniel Vetter 2016-12-09 694 * indicated with the error code -EBUSY. d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 695 */ d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 696 struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf, d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 697 struct device *dev) d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 698 { d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 699 struct dma_buf_attachment *attach; d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 700 int ret; d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 701 d1aa06a1eaf5f75 drivers/base/dma-buf.c Laurent Pinchart 2012-01-26 702 if (WARN_ON(!dmabuf || !dev)) d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 703 return ERR_PTR(-EINVAL); d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 704 db7942b6292306a drivers/dma-buf/dma-buf.c Markus Elfring 2017-05-08 705 attach = kzalloc(sizeof(*attach), GFP_KERNEL); 34d84ec4881d134 drivers/dma-buf/dma-buf.c Markus Elfring 2017-05-08 706 if (!attach) a9fbc3b73127efb drivers/base/dma-buf.c Laurent Pinchart 2012-01-26 707 return ERR_PTR(-ENOMEM); d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 708 d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 709 attach->dev = dev; d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 710 attach->dmabuf = dmabuf; 2ed9201bdd9a8e4 drivers/base/dma-buf.c Laurent Pinchart 2012-01-26 711 2ed9201bdd9a8e4 drivers/base/dma-buf.c Laurent Pinchart 2012-01-26 712 mutex_lock(&dmabuf->lock); 2ed9201bdd9a8e4 drivers/base/dma-buf.c Laurent Pinchart 2012-01-26 713 d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 714 if (dmabuf->ops->attach) { a19741e5e5a9f1f drivers/dma-buf/dma-buf.c Christian König 2018-05-28 715 ret = dmabuf->ops->attach(dmabuf, attach); d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 716 if (ret) d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 717 goto err_attach; d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 718 } d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 719 list_add(&attach->node, &dmabuf->attachments); d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 720 d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 721 return attach; d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 722 d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 723 err_attach: d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 724 kfree(attach); d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 725 mutex_unlock(&dmabuf->lock); d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 726 return ERR_PTR(ret); 90935b28546d2cf drivers/dma-buf/dma-buf.c Hridya Valsaraju 2021-02-01 727 90935b28546d2cf drivers/dma-buf/dma-buf.c Hridya Valsaraju 2021-02-01 @728 dma_buf_detach(dmabuf, attach); 90935b28546d2cf drivers/dma-buf/dma-buf.c Hridya Valsaraju 2021-02-01 729 return ERR_PTR(ret); d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 730 } d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 731 EXPORT_SYMBOL_GPL(dma_buf_attach); d15bd7ee445d070 drivers/base/dma-buf.c Sumit Semwal 2011-12-26 732 :::::: The code at line 728 was first introduced by commit :::::: 90935b28546d2cfb7541d76c71e749496f77968b BACKPORT: FROMLIST: dmabuf: Add the capability to expose DMA-BUF stats in sysfs :::::: TO: Hridya Valsaraju <[email protected]> :::::: CC: Suren Baghdasaryan <[email protected]> -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
