Re: [rcu:dev.2019.09.23a 61/77] htmldocs: kernel/rcu/tree.c:2706: warning: Function parameter or member 'krcp' not described in 'kfree_rcu_cpu_work'

From: Paul E. McKenney
Date: Tue Sep 24 2019 - 11:02:17 EST

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On Tue, Sep 24, 2019 at 10:24:24AM +0800, kbuild test robot wrote:
> tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2019.09.23a
> head: 97de53b94582c208ee239178b208b8e8b9472585
> commit: 3cc794ad18bfc6e46d58411b53f2784388d5bb85 [61/77] rcu: Add multiple in-flight batches of kfree_rcu() work
> reproduce: make htmldocs
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
>
> All warnings (new ones prefixed by >>):
>
> Warning: The Sphinx 'sphinx_rtd_theme' HTML theme was not found. Make sure you have the theme installed to produce pretty HTML output. Falling back to the default theme.
> WARNING: dot(1) not found, for better output quality install graphviz from http://www.graphviz.org
> WARNING: convert(1) not found, for SVG to PDF conversion install ImageMagick (https://www.imagemagick.org)
> include/linux/spi/spi.h:190: warning: Function parameter or member 'driver_override' not described in 'spi_device'
> include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
> include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints'
> include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops'
> fs/direct-io.c:258: warning: Excess function parameter 'offset' description in 'dio_complete'
> fs/libfs.c:496: warning: Excess function parameter 'available' description in 'simple_write_end'
> fs/posix_acl.c:647: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode'
> fs/posix_acl.c:647: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode'
> fs/posix_acl.c:647: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode'
> mm/util.c:1: warning: 'get_user_pages_fast' not found
> mm/slab.c:4215: warning: Function parameter or member 'objp' not described in '__ksize'
> drivers/usb/typec/bus.c:1: warning: 'typec_altmode_register_driver' not found
> drivers/usb/typec/bus.c:1: warning: 'typec_altmode_unregister_driver' not found
> drivers/usb/typec/class.c:1: warning: 'typec_altmode_unregister_notifier' not found
> drivers/usb/typec/class.c:1: warning: 'typec_altmode_register_notifier' not found
> include/linux/w1.h:272: warning: Function parameter or member 'of_match_table' not described in 'w1_family'
> include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry'
> include/linux/mod_devicetable.h:822: warning: Function parameter or member 'context' not described in 'wmi_device_id'
> drivers/gpu/drm/mcde/mcde_drv.c:1: warning: 'ST-Ericsson MCDE DRM Driver' not found
> lib/genalloc.c:1: warning: 'gen_pool_add_virt' not found
> lib/genalloc.c:1: warning: 'gen_pool_alloc' not found
> lib/genalloc.c:1: warning: 'gen_pool_free' not found
> lib/genalloc.c:1: warning: 'gen_pool_alloc_algo' not found
> include/linux/clk.h:381: warning: Function parameter or member 'num_clks' not described in 'devm_clk_bulk_get_optional'
> >> kernel/rcu/tree.c:2706: warning: Function parameter or member 'krcp' not described in 'kfree_rcu_cpu_work'

Good catch, fix set up to squash into original.

Thanx, Paul

> include/linux/rculist.h:374: warning: Excess function parameter 'cond' description in 'list_for_each_entry_rcu'
> include/linux/rculist.h:651: warning: Excess function parameter 'cond' description in 'hlist_for_each_entry_rcu'
> drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:142: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_read_lock'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:347: warning: cannot understand function prototype: 'struct amdgpu_vm_pt_cursor '
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:348: warning: cannot understand function prototype: 'struct amdgpu_vm_pt_cursor '
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:494: warning: Function parameter or member 'start' not described in 'amdgpu_vm_pt_first_dfs'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:546: warning: Function parameter or member 'adev' not described in 'for_each_amdgpu_vm_pt_dfs_safe'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:546: warning: Function parameter or member 'vm' not described in 'for_each_amdgpu_vm_pt_dfs_safe'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:546: warning: Function parameter or member 'start' not described in 'for_each_amdgpu_vm_pt_dfs_safe'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:546: warning: Function parameter or member 'cursor' not described in 'for_each_amdgpu_vm_pt_dfs_safe'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:546: warning: Function parameter or member 'entry' not described in 'for_each_amdgpu_vm_pt_dfs_safe'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:823: warning: Function parameter or member 'level' not described in 'amdgpu_vm_bo_param'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1285: warning: Function parameter or member 'params' not described in 'amdgpu_vm_update_flags'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1285: warning: Function parameter or member 'bo' not described in 'amdgpu_vm_update_flags'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1285: warning: Function parameter or member 'level' not described in 'amdgpu_vm_update_flags'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1285: warning: Function parameter or member 'pe' not described in 'amdgpu_vm_update_flags'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1285: warning: Function parameter or member 'addr' not described in 'amdgpu_vm_update_flags'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1285: warning: Function parameter or member 'count' not described in 'amdgpu_vm_update_flags'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1285: warning: Function parameter or member 'incr' not described in 'amdgpu_vm_update_flags'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1285: warning: Function parameter or member 'flags' not described in 'amdgpu_vm_update_flags'
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:2822: warning: Function parameter or member 'pasid' not described in 'amdgpu_vm_make_compute'
> drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c:378: warning: Excess function parameter 'entry' description in 'amdgpu_irq_dispatch'
> drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c:379: warning: Function parameter or member 'ih' not described in 'amdgpu_irq_dispatch'
> drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c:379: warning: Excess function parameter 'entry' description in 'amdgpu_irq_dispatch'
> drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c:1: warning: no structured comments found
> drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1: warning: no structured comments found
> drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:1: warning: 'pp_dpm_sclk pp_dpm_mclk pp_dpm_pcie' not found
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:131: warning: Incorrect use of kernel-doc format: * @atomic_obj
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:237: warning: Incorrect use of kernel-doc format: * gpu_info FW provided soc bounding box struct or 0 if not
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:242: warning: Function parameter or member 'atomic_obj' not described in 'amdgpu_display_manager'
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:242: warning: Function parameter or member 'backlight_link' not described in 'amdgpu_display_manager'
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:242: warning: Function parameter or member 'backlight_caps' not described in 'amdgpu_display_manager'
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:242: warning: Function parameter or member 'freesync_module' not described in 'amdgpu_display_manager'
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:242: warning: Function parameter or member 'fw_dmcu' not described in 'amdgpu_display_manager'
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:242: warning: Function parameter or member 'dmcu_fw_version' not described in 'amdgpu_display_manager'
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:242: warning: Function parameter or member 'soc_bounding_box' not described in 'amdgpu_display_manager'
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:1: warning: 'register_hpd_handlers' not found
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:1: warning: 'dm_crtc_high_irq' not found
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:1: warning: 'dm_pflip_high_irq' not found
> include/drm/drm_drv.h:722: warning: Function parameter or member 'gem_prime_pin' not described in 'drm_driver'
> include/drm/drm_drv.h:722: warning: Function parameter or member 'gem_prime_unpin' not described in 'drm_driver'
> include/drm/drm_drv.h:722: warning: Function parameter or member 'gem_prime_res_obj' not described in 'drm_driver'
> include/drm/drm_drv.h:722: warning: Function parameter or member 'gem_prime_get_sg_table' not described in 'drm_driver'
> include/drm/drm_drv.h:722: warning: Function parameter or member 'gem_prime_import_sg_table' not described in 'drm_driver'
> include/drm/drm_drv.h:722: warning: Function parameter or member 'gem_prime_vmap' not described in 'drm_driver'
> include/drm/drm_drv.h:722: warning: Function parameter or member 'gem_prime_vunmap' not described in 'drm_driver'
> include/drm/drm_drv.h:722: warning: Function parameter or member 'gem_prime_mmap' not described in 'drm_driver'
> include/drm/drm_modeset_helper_vtables.h:1053: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
> include/drm/drm_modeset_helper_vtables.h:1053: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs'
> include/drm/drm_atomic_state_helper.h:1: warning: no structured comments found
> include/linux/skbuff.h:893: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'list' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'vlan_present' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
> include/linux/skbuff.h:893: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
> include/net/sock.h:233: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
> include/net/sock.h:233: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
> include/net/sock.h:233: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
> include/net/sock.h:233: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
> include/net/sock.h:233: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
> include/net/sock.h:233: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
> include/net/sock.h:233: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
> include/net/sock.h:233: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
> include/net/sock.h:233: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
> include/net/sock.h:233: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
> include/net/sock.h:233: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
> include/net/sock.h:515: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock'
> include/net/sock.h:515: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
> include/net/sock.h:515: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
> include/net/sock.h:515: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock'
> include/net/sock.h:515: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
> include/net/sock.h:515: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock'
> include/net/sock.h:515: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
> include/net/sock.h:515: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock'
> include/net/sock.h:2439: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE'
> include/net/sock.h:2439: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE'
> include/net/sock.h:2439: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE'
> include/linux/netdevice.h:2040: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
> include/linux/netdevice.h:2040: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
> include/linux/netdevice.h:2040: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
> include/linux/netdevice.h:2040: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
> include/linux/netdevice.h:2040: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
> include/linux/netdevice.h:2040: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
> include/linux/netdevice.h:2040: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
> include/linux/netdevice.h:2040: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
> include/linux/netdevice.h:2040: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
>
> vim +2706 kernel/rcu/tree.c
>
> 2694
> 2695 /**
> 2696 * struct kfree_rcu_cpu_work - single batch of kfree_rcu() requests
> 2697 * @rcu_work: Let queue_rcu_work() invoke workqueue handler after grace period
> 2698 * @head_free: List of kfree_rcu() objects waiting for a grace period
> 2699 * @kcrp: Pointer to @kfree_rcu_cpu structure
> 2700 */
> 2701
> 2702 struct kfree_rcu_cpu_work {
> 2703 struct rcu_work rcu_work;
> 2704 struct rcu_head *head_free;
> 2705 struct kfree_rcu_cpu *krcp;
> > 2706 };
> 2707
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation

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