tree: git://linuxtv.org/pinchartl/media.git gmsl/max9286/bindings head: b551a93fb443867f1a950d6063910639bd303daf commit: 1bf95761342cbb5585b976194300d58bc6f30000 [44/45] media: subdev: Extend routing validation helper config: sparc64-randconfig-r014-20211216 (https://download.01.org/0day-ci/archive/20211217/202112171621.k6d6CR2S-lk...) compiler: sparc64-linux-gcc (GCC) 11.2.0 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 git remote add pinchartl-media git://linuxtv.org/pinchartl/media.git git fetch --no-tags pinchartl-media gmsl/max9286/bindings git checkout 1bf95761342cbb5585b976194300d58bc6f30000 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc64 SHELL=/bin/bash drivers/media/v4l2-core/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/media/v4l2-core/v4l2-subdev.c: In function '__v4l2_subdev_init_finalize': drivers/media/v4l2-core/v4l2-subdev.c:1409:17: error: implicit declaration of function '__v4l2_subdev_state_alloc' [-Werror=implicit-function-declaration] 1409 | state = __v4l2_subdev_state_alloc(sd, name, key); | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/v4l2-core/v4l2-subdev.c:1409:15: warning: assignment to 'struct v4l2_subdev_state *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1409 | state = __v4l2_subdev_state_alloc(sd, name, key); | ^ drivers/media/v4l2-core/v4l2-subdev.c: In function 'v4l2_subdev_cleanup': drivers/media/v4l2-core/v4l2-subdev.c:1421:9: error: implicit declaration of function '__v4l2_subdev_state_free' [-Werror=implicit-function-declaration] 1421 | __v4l2_subdev_state_free(sd->active_state); | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/v4l2-core/v4l2-subdev.c: In function 'v4l2_subdev_routing_validate': 1595 | remote_pads = kcalloc(sd->entity.num_pads, sizeof(*remote_pads), | ^~ drivers/media/v4l2-core/v4l2-subdev.c:1600:35: error: 'struct v4l2_subdev' has no member named 'entity' 1600 | for (i = 0; i < sd->entity.num_pads; ++i) | ^~ drivers/media/v4l2-core/v4l2-subdev.c:1608:42: error: 'struct v4l2_subdev' has no member named 'entity' 1608 | if (route->sink_pad >= sd->entity.num_pads || | ^~ drivers/media/v4l2-core/v4l2-subdev.c:1609:25: error: 'struct v4l2_subdev' has no member named 'entity' 1609 | !(sd->entity.pads[route->sink_pad].flags & MEDIA_PAD_FL_SINK)) { | ^~ drivers/media/v4l2-core/v4l2-subdev.c:1615:44: error: 'struct v4l2_subdev' has no member named 'entity' 1615 | if (route->source_pad >= sd->entity.num_pads || | ^~ drivers/media/v4l2-core/v4l2-subdev.c:1616:25: error: 'struct v4l2_subdev' has no member named 'entity' 1616 | !(sd->entity.pads[route->source_pad].flags & MEDIA_PAD_FL_SOURCE)) { | ^~ cc1: some warnings being treated as errors vim +1595 drivers/media/v4l2-core/v4l2-subdev.c 1585 1586 int v4l2_subdev_routing_validate(struct v4l2_subdev *sd, 1587 const struct v4l2_subdev_krouting *routing, 1588 enum v4l2_subdev_routing_restriction disallow) 1589 { 1590 u32 *remote_pads = NULL; 1591 unsigned int i, j; 1592 int ret = -EINVAL; 1593 1594 if (disallow & V4L2_SUBDEV_ROUTING_NO_STREAM_MIX) { 1596 GFP_KERNEL); 1597 if (!remote_pads) 1598 return -ENOMEM; 1599 1600 for (i = 0; i < sd->entity.num_pads; ++i) 1601 remote_pads[i] = U32_MAX; 1602 } 1603 1604 for (i = 0; i < routing->num_routes; ++i) { 1605 const struct v4l2_subdev_route *route = &routing->routes[i]; 1606 1607 /* Validate the sink and source pad numbers. */ 1608 if (route->sink_pad >= sd->entity.num_pads || 1609 !(sd->entity.pads[route->sink_pad].flags & MEDIA_PAD_FL_SINK)) { 1610 dev_dbg(sd->dev, "route %u sink (%u) is not a sink pad\n", 1611 i, route->sink_pad); 1612 goto out; 1613 } 1614 1615 if (route->source_pad >= sd->entity.num_pads || 1616 !(sd->entity.pads[route->source_pad].flags & MEDIA_PAD_FL_SOURCE)) { 1617 dev_dbg(sd->dev, "route %u source (%u) is not a source pad\n", 1618 i, route->source_pad); 1619 goto out; 1620 } 1621 1622 /* 1623 * V4L2_SUBDEV_ROUTING_NO_STREAM_MIX: Streams on the same pad 1624 * may not be routed to streams on different pads. 1625 */ 1626 if (disallow & V4L2_SUBDEV_ROUTING_NO_STREAM_MIX) { 1627 if (remote_pads[route->sink_pad] != U32_MAX && 1628 remote_pads[route->sink_pad] != route->source_pad) { 1629 dev_dbg(sd->dev, 1630 "route %u attempts to mix %s streams\n", 1631 i, "sink"); 1632 goto out; 1633 } 1634 1635 if (remote_pads[route->source_pad] != U32_MAX && 1636 remote_pads[route->source_pad] != route->sink_pad) { 1637 dev_dbg(sd->dev, 1638 "route %u attempts to mix %s streams\n", 1639 i, "source"); 1640 goto out; 1641 } 1642 1643 remote_pads[route->sink_pad] = route->source_pad; 1644 remote_pads[route->source_pad] = route->sink_pad; 1645 } 1646 1647 for (j = i + 1; j < routing->num_routes; ++j) { 1648 const struct v4l2_subdev_route *r = &routing->routes[j]; 1649 1650 /* 1651 * V4L2_SUBDEV_ROUTING_NO_1_TO_N: No two routes can 1652 * originate from the same (sink) stream. 1653 */ 1654 if ((disallow & V4L2_SUBDEV_ROUTING_NO_1_TO_N) && 1655 route->sink_pad == r->sink_pad && 1656 route->sink_stream == r->sink_stream) { 1657 dev_dbg(sd->dev, 1658 "routes %u and %u originate from same sink (%u/%u)\n", 1659 i, j, route->sink_pad, 1660 route->sink_stream); 1661 goto out; 1662 } 1663 1664 /* 1665 * V4L2_SUBDEV_ROUTING_NO_N_TO_1: No two routes can end 1666 * at the same (source) stream. 1667 */ 1668 if ((disallow & V4L2_SUBDEV_ROUTING_NO_N_TO_1) && 1669 route->source_pad == r->source_pad && 1670 route->source_stream == r->source_stream) { 1671 dev_dbg(sd->dev, 1672 "routes %u and %u end at same source (%u/%u)\n", 1673 i, j, route->source_pad, 1674 route->source_stream); 1675 goto out; 1676 } 1677 } 1678 } 1679 1680 ret = 0; 1681 1682 out: 1683 kfree(remote_pads); 1684 return ret; 1685 } 1686 EXPORT_SYMBOL_GPL(v4l2_subdev_routing_validate); 1687 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org