Re: [PATCH v3 3/8] drm/fb_helper: Introduce hotplug_suspend/resume()

From: kbuild test robot
Date: Wed Aug 01 2018 - 06:02:22 EST

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In reply to: kbuild test robot: "Re: [PATCH v3 3/8] drm/fb_helper: Introduce hotplug_suspend/resume()"
Next in thread: Daniel Vetter: "Re: [PATCH v3 3/8] drm/fb_helper: Introduce hotplug_suspend/resume()"
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Hi Lyude,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.18-rc7]
[cannot apply to next-20180731]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Lyude-Paul/Fix-connector-probing-deadlocks-from-RPM-bugs/20180801-153816
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

WARNING: convert(1) not found, for SVG to PDF conversion install ImageMagick (https://www.imagemagick.org)
mm/mempool.c:228: warning: Function parameter or member 'pool' not described in 'mempool_init'
include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.ibss' not described in 'wireless_dev'
include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.connect' not described in 'wireless_dev'
include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.keys' not described in 'wireless_dev'
include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.ie' not described in 'wireless_dev'
include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.ie_len' not described in 'wireless_dev'
include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.bssid' not described in 'wireless_dev'
include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.ssid' not described in 'wireless_dev'
include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.default_key' not described in 'wireless_dev'
include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.default_mgmt_key' not described in 'wireless_dev'
include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.prev_bssid_valid' not described in 'wireless_dev'
include/net/mac80211.h:2282: warning: Function parameter or member 'radiotap_timestamp.units_pos' not described in 'ieee80211_hw'
include/net/mac80211.h:2282: warning: Function parameter or member 'radiotap_timestamp.accuracy' not described in 'ieee80211_hw'
include/net/mac80211.h:955: warning: Function parameter or member 'control.rates' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'control.rts_cts_rate_idx' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'control.use_rts' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'control.use_cts_prot' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'control.short_preamble' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'control.skip_table' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'control.jiffies' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'control.vif' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'control.hw_key' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'control.flags' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'control.enqueue_time' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'ack' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'ack.cookie' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'status.rates' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'status.ack_signal' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'status.ampdu_ack_len' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'status.ampdu_len' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'status.antenna' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'status.tx_time' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'status.is_valid_ack_signal' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'status.status_driver_data' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'driver_rates' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'pad' not described in 'ieee80211_tx_info'
include/net/mac80211.h:955: warning: Function parameter or member 'rate_driver_data' not described in 'ieee80211_tx_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.signal' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.chain_signal' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.filtered' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_failed' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_count' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.lost_packets' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_tdls_pkt_time' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_retries' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_failed' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack_signal' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.ack_signal_filled' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.avg_ack_signal' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.packets' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.bytes' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.last_rate' not described in 'sta_info'
net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.msdu' not described in 'sta_info'
kernel/sched/fair.c:3760: warning: Function parameter or member 'flags' not described in 'attach_entity_load_avg'
include/linux/device.h:93: warning: bad line: this bus.
include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_excl.cb' not described in 'dma_buf'
include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_excl.poll' not described in 'dma_buf'
include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_excl.active' not described in 'dma_buf'
include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_shared.cb' not described in 'dma_buf'
include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_shared.poll' not described in 'dma_buf'
include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_shared.active' not described in 'dma_buf'
include/linux/dma-fence-array.h:54: warning: Function parameter or member 'work' not described in 'dma_fence_array'
include/linux/gpio/driver.h:142: warning: Function parameter or member 'request_key' not described in 'gpio_irq_chip'
include/linux/iio/hw-consumer.h:1: warning: no structured comments found
include/linux/device.h:94: warning: bad line: this bus.
include/linux/input/sparse-keymap.h:46: warning: Function parameter or member 'sw' not described in 'key_entry'
include/linux/regulator/driver.h:227: warning: Function parameter or member 'resume_early' not described in 'regulator_ops'
drivers/regulator/core.c:4465: warning: Excess function parameter 'state' description in 'regulator_suspend_late'
arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw0' not described in 'irb'
arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw1' not described in 'irb'
arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw2' not described in 'irb'
arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw3' not described in 'irb'
arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.eadm' not described in 'irb'
drivers/usb/dwc3/gadget.c:510: warning: Excess function parameter 'dwc' description in 'dwc3_gadget_start_config'
include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_pin' not described in 'drm_driver'
include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_unpin' not described in 'drm_driver'
include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_res_obj' not described in 'drm_driver'
include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_get_sg_table' not described in 'drm_driver'
include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_import_sg_table' not described in 'drm_driver'
include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vmap' not described in 'drm_driver'
include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vunmap' not described in 'drm_driver'
include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_mmap' not described in 'drm_driver'
>> drivers/gpu/drm/drm_fb_helper.c:2750: warning: Function parameter or member 'fb_helper' not described in 'drm_fb_helper_resume_hotplug'
drivers/gpu/drm/i915/i915_vma.h:48: warning: cannot understand function prototype: 'struct i915_vma '
drivers/gpu/drm/i915/i915_vma.h:1: warning: no structured comments found
include/drm/tinydrm/tinydrm.h:34: warning: Function parameter or member 'fb_dirty' not described in 'tinydrm_device'
drivers/gpu/drm/tinydrm/mipi-dbi.c:272: warning: Function parameter or member 'crtc_state' not described in 'mipi_dbi_enable_flush'
drivers/gpu/drm/tinydrm/mipi-dbi.c:272: warning: Function parameter or member 'plane_state' not described in 'mipi_dbi_enable_flush'
include/linux/skbuff.h:852: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'skb_mstamp' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'offload_fwd_mark' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'offload_mr_fwd_mark' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
include/linux/skbuff.h:852: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
include/net/sock.h:234: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
include/net/sock.h:234: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
include/net/sock.h:234: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
include/net/sock.h:234: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
include/net/sock.h:234: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
include/net/sock.h:234: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
include/net/sock.h:234: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
include/net/sock.h:234: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
include/net/sock.h:234: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
include/net/sock.h:234: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
include/net/sock.h:234: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
include/net/sock.h:493: warning: Function parameter or member 'sk_backlog.rmem_alloc' not described in 'sock'
include/net/sock.h:493: warning: Function parameter or member 'sk_backlog.len' not described in 'sock'
include/net/sock.h:493: warning: Function parameter or member 'sk_backlog.head' not described in 'sock'
include/net/sock.h:493: warning: Function parameter or member 'sk_backlog.tail' not described in 'sock'
include/net/sock.h:493: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
include/net/sock.h:493: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
include/net/sock.h:493: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
include/net/sock.h:493: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
include/linux/netdevice.h:1997: warning: Function parameter or member 'adj_list.upper' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'adj_list.lower' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'switchdev_ops' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member '____cacheline_aligned_in_smp' not described in 'net_device'
include/linux/netdevice.h:1997: warning: Function parameter or member 'qdisc_hash' 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'
sound/soc/soc-core.c:2787: warning: Excess function parameter 'legacy_dai_naming' description in 'snd_soc_register_dais'
include/linux/rcupdate.h:571: ERROR: Unexpected indentation.
include/linux/rcupdate.h:575: ERROR: Unexpected indentation.
include/linux/rcupdate.h:579: WARNING: Block quote ends without a blank line; unexpected unindent.
include/linux/rcupdate.h:581: WARNING: Block quote ends without a blank line; unexpected unindent.
include/linux/rcupdate.h:581: WARNING: Inline literal start-string without end-string.
lib/reed_solomon/reed_solomon.c:287: ERROR: Unknown target name: "gfp".
include/linux/wait.h:110: WARNING: Block quote ends without a blank line; unexpected unindent.
include/linux/wait.h:113: ERROR: Unexpected indentation.
include/linux/wait.h:115: WARNING: Block quote ends without a blank line; unexpected unindent.
kernel/time/hrtimer.c:1129: WARNING: Block quote ends without a blank line; unexpected unindent.
kernel/signal.c:327: WARNING: Inline literal start-string without end-string.
drivers/video/fbdev/core/modedb.c:647: WARNING: Inline strong start-string without end-string.
drivers/video/fbdev/core/modedb.c:647: WARNING: Inline strong start-string without end-string.
drivers/video/fbdev/core/modedb.c:647: WARNING: Inline strong start-string without end-string.
drivers/video/fbdev/core/modedb.c:647: WARNING: Inline strong start-string without end-string.
drivers/ata/libata-core.c:5946: ERROR: Unknown target name: "hw".
drivers/message/fusion/mptbase.c:5054: WARNING: Definition list ends without a blank line; unexpected unindent.
drivers/tty/serial/serial_core.c:1892: WARNING: Definition list ends without a blank line; unexpected unindent.
include/linux/mtd/rawnand.h:1446: WARNING: Inline strong start-string without end-string.
include/linux/mtd/rawnand.h:1448: WARNING: Inline strong start-string without end-string.
include/linux/regulator/driver.h:279: ERROR: Unknown target name: "regulator_regmap_x_voltage".
Documentation/driver-api/soundwire/locking.rst:50: ERROR: Inconsistent literal block quoting.
Documentation/driver-api/soundwire/locking.rst:51: WARNING: Line block ends without a blank line.
Documentation/driver-api/soundwire/locking.rst:55: WARNING: Inline substitution_reference start-string without end-string.
Documentation/driver-api/soundwire/locking.rst:56: WARNING: Line block ends without a blank line.
Documentation/driver-api/soundwire/stream.rst:177: WARNING: Explicit markup ends without a blank line; unexpected unindent.
Documentation/driver-api/soundwire/stream.rst:203: WARNING: Explicit markup ends without a blank line; unexpected unindent.
Documentation/driver-api/soundwire/stream.rst:248: WARNING: Explicit markup ends without a blank line; unexpected unindent.
Documentation/driver-api/soundwire/stream.rst:277: WARNING: Explicit markup ends without a blank line; unexpected unindent.
Documentation/driver-api/soundwire/stream.rst:304: WARNING: Explicit markup ends without a blank line; unexpected unindent.
Documentation/driver-api/soundwire/stream.rst:328: WARNING: Explicit markup ends without a blank line; unexpected unindent.
Documentation/driver-api/soundwire/stream.rst:352: WARNING: Explicit markup ends without a blank line; unexpected unindent.
Documentation/driver-api/soundwire/stream.rst:364: WARNING: Explicit markup ends without a blank line; unexpected unindent.
include/linux/spi/spi.h:373: ERROR: Unexpected indentation.
block/bio.c:958: WARNING: Inline emphasis start-string without end-string.
Documentation/gpu/drivers.rst:5: WARNING: toctree contains reference to nonexisting document u'gpu/v3d'
Documentation/misc-devices/ibmvmc.rst:2: WARNING: Explicit markup ends without a blank line; unexpected unindent.
net/core/dev.c:4650: ERROR: Unknown target name: "page_is".
Documentation/networking/net_failover.rst:48: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/networking/net_failover.rst:50: ERROR: Unexpected indentation.

vim +2750 drivers/gpu/drm/drm_fb_helper.c

2735
2736 /**
2737 * drm_fb_helper_resume_hotplug - Allow fb_helper to handle probing new
2738 * connectors again, and bring it up to date
2739 * with the current device's connector status
2740 * fb_helper: driver-allocated fbdev helper, can be NULL
2741 *
2742 * Allow fb_helper to react to connector status changes again after having
2743 * been disabled through drm_fb_helper_suspend_hotplug(). This also schedules
2744 * a fb_helper hotplug event to bring fb_helper up to date with the current
2745 * status of the DRM device's connectors.
2746 */
2747 void
2748 drm_fb_helper_resume_hotplug(struct drm_fb_helper *fb_helper)
2749 {
> 2750 fb_helper->hotplug_suspended = false;
2751 drm_fb_helper_hotplug_event(fb_helper);
2752 }
2753 EXPORT_SYMBOL(drm_fb_helper_resume_hotplug);
2754

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