Hi Ramalingam, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master v5.5 next-20200207] [cannot apply to drm/drm-next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Ramalingam-C/drm-hdcp-optimizing-the-srm-handling/20200208-060809 base: git://anongit.freedesktop.org/drm-intel for-linux-next 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 >>): include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'perf_event_alloc' not described in 'security_list_options' include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'perf_event_free' not described in 'security_list_options' include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'perf_event_read' not described in 'security_list_options' include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'perf_event_write' not described in 'security_list_options' drivers/usb/typec/bus.c:1: warning: 'typec_altmode_unregister_driver' not found drivers/usb/typec/bus.c:1: warning: 'typec_altmode_register_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 sound/soc/soc-core.c:2522: warning: Function parameter or member 'legacy_dai_naming' not described in 'snd_soc_register_dai' 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' include/linux/skbuff.h:888: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'list' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'head_frag' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'encapsulation' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'csum_valid' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'vlan_present' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'csum_level' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff' include/linux/skbuff.h:888: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff' include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common' include/net/sock.h:514: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock' include/net/sock.h:514: warning: Function parameter or member 'sk_wq_raw' not described in 'sock' include/net/sock.h:514: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock' include/net/sock.h:514: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock' include/net/sock.h:514: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock' include/net/sock.h:514: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock' include/net/sock.h:514: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock' include/net/sock.h:514: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock' include/net/sock.h:2459: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE' include/net/sock.h:2459: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE' include/net/sock.h:2459: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE' net/core/skbuff.c:5489: warning: Function parameter or member 'ethernet' not described in 'skb_mpls_push' include/linux/netdevice.h:2082: warning: Function parameter or member 'gso_partial_features' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'name_assign_type' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'mpls_ptr' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'xdp_prog' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'qdisc_hash' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device' include/linux/netdevice.h:2082: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device' include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state' include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state' drivers/infiniband/core/umem_odp.c:167: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child' drivers/infiniband/core/umem_odp.c:217: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get' drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc' drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap' include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry' include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs' include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs' drivers/gpu/drm/bridge/panel.c:303: warning: Function parameter or member 'bridge' not described in 'drm_panel_bridge_connector' >> drivers/gpu/drm/drm_hdcp.c:284: warning: Function parameter or member 'ksvs_in' not described in 'drm_hdcp_check_ksvs_revoked' drivers/gpu/drm/drm_hdcp.c:284: warning: Excess function parameter 'ksvs' description in 'drm_hdcp_check_ksvs_revoked' include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port' include/drm/gpu_scheduler.h:103: warning: Function parameter or member 'priority' not described in 'drm_sched_entity' drivers/gpu/drm/i915/i915_vma.h:1: warning: 'Virtual Memory Address' not found drivers/gpu/drm/i915/i915_gem_gtt.c:1: warning: 'Global GTT views' not found include/linux/host1x.h:66: warning: Function parameter or member 'parent' not described in 'host1x_client' include/linux/host1x.h:66: warning: Function parameter or member 'usecount' not described in 'host1x_client' include/linux/host1x.h:66: warning: Function parameter or member 'lock' not described in 'host1x_client' include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters' include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops' include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta' include/linux/devfreq.h:187: warning: Function parameter or member 'last_status' not described in 'devfreq' drivers/devfreq/devfreq.c:1818: warning: bad line: - Resource-managed devfreq_register_notifier() drivers/devfreq/devfreq.c:1854: warning: bad line: - Resource-managed devfreq_unregister_notifier() drivers/devfreq/devfreq-event.c:355: warning: Function parameter or member 'edev' not described in 'devfreq_event_remove_edev' drivers/devfreq/devfreq-event.c:355: warning: Excess function parameter 'dev' description in 'devfreq_event_remove_edev' Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/driver-api/driver-model/driver.rst:215: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/driver-model/driver.rst:215: WARNING: Inline emphasis start-string without end-string. include/uapi/linux/firewire-cdev.h:312: WARNING: Inline literal start-string without end-string. drivers/firewire/core-transaction.c:606: WARNING: Inline strong start-string without end-string. Documentation/x86/boot.rst:72: WARNING: Malformed table. Text in column margin in table line 57. vim +284 drivers/gpu/drm/drm_hdcp.c 255 256 /** 257 * drm_hdcp_check_ksvs_revoked - Check the revoked status of the IDs 258 * 259 * @drm_dev: drm_device for which HDCP revocation check is requested 260 * @ksvs: List of KSVs (HDCP receiver IDs) 261 * @ksv_count: KSV count passed in through @ksvs 262 * 263 * This function reads the HDCP System renewability Message(SRM Table) 264 * from userspace as a firmware and parses it for the revoked HDCP 265 * KSVs(Receiver IDs) detected by DCP LLC. Once the revoked KSVs are known, 266 * revoked state of the KSVs in the list passed in by display drivers are 267 * decided and response is sent. 268 * 269 * SRM should be presented in the name of "display_hdcp_srm.bin". 270 * 271 * Format of the SRM table, that userspace needs to write into the binary file, 272 * is defined at: 273 * 1. Renewability chapter on 55th page of HDCP 1.4 specification 274 * https://www.digital-cp.com/sites/default/files/specifications/HDCP%20Specification%20Rev1_4_Secure.pdf 275 * 2. Renewability chapter on 63rd page of HDCP 2.2 specification 276 * https://www.digital-cp.com/sites/default/files/specifications/HDCP%20on%20HDMI%20Specification%20Rev2_2_Final1.pdf 277 * 278 * Returns: 279 * Count of the revoked KSVs or -ve error number incase of the failure. 280 */ 281 int drm_hdcp_check_ksvs_revoked(struct drm_device *drm_dev, u8 *ksvs_in, 282 u32 ksv_count) 283 { > 284 u32 revoked_ksv_cnt = 0, i, j; 285 u8 *revoked_ksv_list = NULL; 286 int ret = 0; 287 288 ret = drm_hdcp_request_srm(drm_dev, &revoked_ksv_list, 289 &revoked_ksv_cnt); 290 291 /* revoked_ksv_cnt will be zero when above function failed */ 292 for (i = 0; i < revoked_ksv_cnt; i++) 293 for (j = 0; j < ksv_count; j++) 294 if (!memcmp(&ksvs_in[j * DRM_HDCP_KSV_LEN], 295 &revoked_ksv_list[i * DRM_HDCP_KSV_LEN], 296 DRM_HDCP_KSV_LEN)) { 297 DRM_DEBUG("Revoked KSV is "); 298 drm_hdcp_print_ksv(&ksvs_in[j * DRM_HDCP_KSV_LEN]); 299 ret++; 300 } 301 302 kfree(revoked_ksv_list); 303 return ret; 304 } 305 EXPORT_SYMBOL_GPL(drm_hdcp_check_ksvs_revoked); 306 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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