Re: [PATCH v8 50/53] media: core: Free range of buffers

kernel test robot
2023-09-30T05:10:22Z

Hi Benjamin,

kernel test robot noticed the following build errors:

[auto build test ERROR on media-tree/master]
[also build test ERROR on sunxi/sunxi/for-next dtor-input/next linus/master v6.6-rc3]
[cannot apply to dtor-input/for-linus next-20230929]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Benjamin-Gaignard/media-videobuf2-Rework-offset-cookie-encoding-pattern/20230928-003247
base: git://linuxtv.org/media_tree.git master
patch link: https://lore.kernel.org/r/20230927153558.159278-51-benjamin.gaignard%40collabora.com
patch subject: [PATCH v8 50/53] media: core: Free range of buffers
config: powerpc64-randconfig-001-20230930 (https://download.01.org/0day-ci/archive/20230930/202309301247.Y0hH4pjx-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230930/202309301247.Y0hH4pjx-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309301247.Y0hH4pjx-lkp@intel.com/

All errors (new ones prefixed by >>):

drivers/media/common/videobuf2/videobuf2-core.c:39:2: error: #error Expected PAGE_SHIFT to be 12
39 | #error Expected PAGE_SHIFT to be 12
| ^~~~~
drivers/media/common/videobuf2/videobuf2-core.c: In function '__vb2_queue_free':
>> drivers/media/common/videobuf2/videobuf2-core.c:596:14: error: 'buffer' undeclared (first use in this function)
596 | for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
| ^~~~~~
drivers/media/common/videobuf2/videobuf2-core.c:596:14: note: each undeclared identifier is reported only once for each function it appears in

vim +/buffer +596 drivers/media/common/videobuf2/videobuf2-core.c

e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 540
2a87af6ba1b9df drivers/media/v4l2-core/videobuf2-core.c Mauro Carvalho Chehab 2017-11-27 541 /*
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 542 * __vb2_queue_free() - free count buffers from start index of the queue - video memory and
2d86401c2cbfce drivers/media/video/videobuf2-core.c Guennadi Liakhovetski 2011-09-28 543 * related information, if no buffers are left return the queue to an
2d86401c2cbfce drivers/media/video/videobuf2-core.c Guennadi Liakhovetski 2011-09-28 544 * uninitialized state. Might be called even if the queue has already been freed.
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 545 */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 546 static void __vb2_queue_free(struct vb2_queue *q, unsigned int start, unsigned int count)
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 547 {
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 548 unsigned int i;
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 549
01cb370ff6c5ab drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-11-30 550 lockdep_assert_held(&q->mmap_lock);
63faabfd89f4db drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2013-12-13 551
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 552 /* Call driver-provided cleanup function for each buffer, if provided */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 553 for (i = start; i < q->max_num_buffers && i < start + count; i++) {
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 554 struct vb2_buffer *vb = vb2_get_buffer(q, i);
256f3162c17595 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 555
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 556 if (!vb)
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 557 continue;
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 558 if (vb->planes[0].mem_priv)
a1d36d8c705e10 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-03-17 559 call_void_vb_qop(vb, buf_cleanup, vb);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 560 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 561
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 562 /* Release video buffer memory */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 563 __vb2_free_mem(q, start, count);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 564
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 565 #ifdef CONFIG_VIDEO_ADV_DEBUG
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 566 /*
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 567 * Check that all the calls were balanced during the life-time of this
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 568 * queue. If not then dump the counters to the kernel log.
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 569 */
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 570 if (vb2_get_num_buffers(q)) {
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 571 bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 572 q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 573 q->cnt_wait_prepare != q->cnt_wait_finish;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 574
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 575 if (unbalanced) {
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 576 pr_info("unbalanced counters for queue %p:\n", q);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 577 if (q->cnt_start_streaming != q->cnt_stop_streaming)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 578 pr_info(" setup: %u start_streaming: %u stop_streaming: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 579 q->cnt_queue_setup, q->cnt_start_streaming,
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 580 q->cnt_stop_streaming);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 581 if (q->cnt_prepare_streaming != q->cnt_unprepare_streaming)
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 582 pr_info(" prepare_streaming: %u unprepare_streaming: %u\n",
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 583 q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 584 if (q->cnt_wait_prepare != q->cnt_wait_finish)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 585 pr_info(" wait_prepare: %u wait_finish: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 586 q->cnt_wait_prepare, q->cnt_wait_finish);
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 587 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 588 q->cnt_queue_setup = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 589 q->cnt_wait_prepare = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 590 q->cnt_wait_finish = 0;
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 591 q->cnt_prepare_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 592 q->cnt_start_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 593 q->cnt_stop_streaming = 0;
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 594 q->cnt_unprepare_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 595 }
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 @596 for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 597 struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 598 bool unbalanced;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 599
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 600 if (!vb)
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 601 continue;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 602
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 603 unbalanced = vb->cnt_mem_alloc != vb->cnt_mem_put ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 604 vb->cnt_mem_prepare != vb->cnt_mem_finish ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 605 vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 606 vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 607 vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 608 vb->cnt_buf_queue != vb->cnt_buf_done ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 609 vb->cnt_buf_prepare != vb->cnt_buf_finish ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 610 vb->cnt_buf_init != vb->cnt_buf_cleanup;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 611
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 612 if (unbalanced) {
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 613 pr_info("unbalanced counters for queue %p, buffer %d:\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 614 q, buffer);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 615 if (vb->cnt_buf_init != vb->cnt_buf_cleanup)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 616 pr_info(" buf_init: %u buf_cleanup: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 617 vb->cnt_buf_init, vb->cnt_buf_cleanup);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 618 if (vb->cnt_buf_prepare != vb->cnt_buf_finish)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 619 pr_info(" buf_prepare: %u buf_finish: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 620 vb->cnt_buf_prepare, vb->cnt_buf_finish);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 621 if (vb->cnt_buf_queue != vb->cnt_buf_done)
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 622 pr_info(" buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 623 vb->cnt_buf_out_validate, vb->cnt_buf_queue,
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 624 vb->cnt_buf_done, vb->cnt_buf_request_complete);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 625 if (vb->cnt_mem_alloc != vb->cnt_mem_put)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 626 pr_info(" alloc: %u put: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 627 vb->cnt_mem_alloc, vb->cnt_mem_put);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 628 if (vb->cnt_mem_prepare != vb->cnt_mem_finish)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 629 pr_info(" prepare: %u finish: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 630 vb->cnt_mem_prepare, vb->cnt_mem_finish);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 631 if (vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 632 pr_info(" get_userptr: %u put_userptr: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 633 vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 634 if (vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 635 pr_info(" attach_dmabuf: %u detach_dmabuf: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 636 vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 637 if (vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 638 pr_info(" map_dmabuf: %u unmap_dmabuf: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 639 vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 640 pr_info(" get_dmabuf: %u num_users: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 641 vb->cnt_mem_get_dmabuf,
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 642 vb->cnt_mem_num_users);
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 643 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 644 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 645 #endif
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 646
3e947c36af524b drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-08-10 647 /* Free vb2 buffers */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 648 for (i = start; i < q->max_num_buffers && i < start + count; i++) {
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 649 struct vb2_buffer *vb = vb2_get_buffer(q, i);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 650
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 651 if (!vb)
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 652 continue;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 653
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 654 vb2_queue_remove_buffer(vb);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 655 kfree(vb);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 656 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 657
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 658 if (!vb2_get_num_buffers(q)) {
ce4686702f8f56 drivers/media/common/videobuf/videobuf2-core.c Satendra Singh Thakur 2017-12-28 659 q->memory = VB2_MEMORY_UNKNOWN;
bd50d999d4d4f3 drivers/media/video/videobuf2-core.c Marek Szyprowski 2011-10-25 660 INIT_LIST_HEAD(&q->queued_list);
a7afcaccfab2fb drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 661 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 662 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 663

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