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Date: Fri, 29 Jun 2018 18:56:02 +0800
From: kbuild test robot <lkp@...el.com>
To: ning.a.zhang@...el.com
Cc: kbuild-all@...org, gregkh@...uxfoundation.org,
rafael.j.wysocki@...el.com, dmitry.torokhov@...il.com,
linux-kernel@...r.kernel.org, mark.gross@...el.com,
Zhang Ning <ning.a.zhang@...el.com>
Subject: Re: [PATCH] driver core: support bus manage deferred probe
Hi Zhang,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on driver-core/driver-core-testing]
[also build test WARNING on v4.18-rc2 next-20180628]
[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/ning-a-zhang-intel-com/driver-core-support-bus-manage-deferred-probe/20180629-150608
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/device.h:150: warning: Function parameter or member 'manage_deferred' not described in 'bus_type'
>> include/linux/device.h:150: warning: Function parameter or member 'deferred_probe_pending_list' not described in 'bus_type'
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/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'
vim +150 include/linux/device.h
^1da177e4 Linus Torvalds 2005-04-16 62
880ffb5c6 Wanlong Gao 2011-05-05 63 /**
880ffb5c6 Wanlong Gao 2011-05-05 64 * struct bus_type - The bus type of the device
880ffb5c6 Wanlong Gao 2011-05-05 65 *
880ffb5c6 Wanlong Gao 2011-05-05 66 * @name: The name of the bus.
ca22e56de Kay Sievers 2011-12-14 67 * @dev_name: Used for subsystems to enumerate devices like ("foo%u", dev->id).
ca22e56de Kay Sievers 2011-12-14 68 * @dev_root: Default device to use as the parent.
12478ba07 Greg Kroah-Hartman 2013-08-08 69 * @bus_groups: Default attributes of the bus.
fa6fdb33b Greg Kroah-Hartman 2013-08-08 70 * @dev_groups: Default attributes of the devices on the bus.
ed0617b5c Greg Kroah-Hartman 2013-08-08 71 * @drv_groups: Default attributes of the device drivers on the bus.
880ffb5c6 Wanlong Gao 2011-05-05 72 * @match: Called, perhaps multiple times, whenever a new device or driver
656b8035b Tomeu Vizoso 2016-02-15 73 * is added for this bus. It should return a positive value if the
656b8035b Tomeu Vizoso 2016-02-15 74 * given device can be handled by the given driver and zero
656b8035b Tomeu Vizoso 2016-02-15 75 * otherwise. It may also return error code if determining that
656b8035b Tomeu Vizoso 2016-02-15 76 * the driver supports the device is not possible. In case of
656b8035b Tomeu Vizoso 2016-02-15 77 * -EPROBE_DEFER it will queue the device for deferred probing.
880ffb5c6 Wanlong Gao 2011-05-05 78 * @uevent: Called when a device is added, removed, or a few other things
880ffb5c6 Wanlong Gao 2011-05-05 79 * that generate uevents to add the environment variables.
880ffb5c6 Wanlong Gao 2011-05-05 80 * @probe: Called when a new device or driver add to this bus, and callback
880ffb5c6 Wanlong Gao 2011-05-05 81 * the specific driver's probe to initial the matched device.
880ffb5c6 Wanlong Gao 2011-05-05 82 * @remove: Called when a device removed from this bus.
880ffb5c6 Wanlong Gao 2011-05-05 83 * @shutdown: Called at shut-down time to quiesce the device.
4f3549d72 Rafael J. Wysocki 2013-05-02 84 *
4f3549d72 Rafael J. Wysocki 2013-05-02 85 * @online: Called to put the device back online (after offlining it).
4f3549d72 Rafael J. Wysocki 2013-05-02 86 * @offline: Called to put the device offline for hot-removal. May fail.
4f3549d72 Rafael J. Wysocki 2013-05-02 87 *
880ffb5c6 Wanlong Gao 2011-05-05 88 * @suspend: Called when a device on this bus wants to go to sleep mode.
880ffb5c6 Wanlong Gao 2011-05-05 89 * @resume: Called to bring a device on this bus out of sleep mode.
582a686f5 Phil Sutter 2017-01-18 90 * @num_vf: Called to find out how many virtual functions a device on this
582a686f5 Phil Sutter 2017-01-18 91 * bus supports.
07397df29 Nipun Gupta 2018-04-28 92 * @dma_configure: Called to setup DMA configuration on a device on
07397df29 Nipun Gupta 2018-04-28 93 this bus.
880ffb5c6 Wanlong Gao 2011-05-05 @94 * @pm: Power management operations of this bus, callback the specific
880ffb5c6 Wanlong Gao 2011-05-05 95 * device driver's pm-ops.
7b08fae8f Marcos Paulo de Souza 2011-11-01 96 * @iommu_ops: IOMMU specific operations for this bus, used to attach IOMMU
ff21776d1 Joerg Roedel 2011-08-26 97 * driver implementations to a bus and allow the driver to do
ff21776d1 Joerg Roedel 2011-08-26 98 * bus-specific setup
880ffb5c6 Wanlong Gao 2011-05-05 99 * @p: The private data of the driver core, only the driver core can
880ffb5c6 Wanlong Gao 2011-05-05 100 * touch this.
bfd63cd24 Michael Opdenacker 2013-06-26 101 * @lock_key: Lock class key for use by the lock validator
8c97a46af Martin Liu 2018-05-31 102 * @need_parent_lock: When probing or removing a device on this bus, the
8c97a46af Martin Liu 2018-05-31 103 * device core should lock the device's parent.
880ffb5c6 Wanlong Gao 2011-05-05 104 *
880ffb5c6 Wanlong Gao 2011-05-05 105 * A bus is a channel between the processor and one or more devices. For the
880ffb5c6 Wanlong Gao 2011-05-05 106 * purposes of the device model, all devices are connected via a bus, even if
880ffb5c6 Wanlong Gao 2011-05-05 107 * it is an internal, virtual, "platform" bus. Buses can plug into each other.
880ffb5c6 Wanlong Gao 2011-05-05 108 * A USB controller is usually a PCI device, for example. The device model
880ffb5c6 Wanlong Gao 2011-05-05 109 * represents the actual connections between buses and the devices they control.
880ffb5c6 Wanlong Gao 2011-05-05 110 * A bus is represented by the bus_type structure. It contains the name, the
880ffb5c6 Wanlong Gao 2011-05-05 111 * default attributes, the bus' methods, PM operations, and the driver core's
880ffb5c6 Wanlong Gao 2011-05-05 112 * private data.
880ffb5c6 Wanlong Gao 2011-05-05 113 */
^1da177e4 Linus Torvalds 2005-04-16 114 struct bus_type {
8d790d740 Dmitry Torokhov 2005-04-26 115 const char *name;
ca22e56de Kay Sievers 2011-12-14 116 const char *dev_name;
ca22e56de Kay Sievers 2011-12-14 117 struct device *dev_root;
12478ba07 Greg Kroah-Hartman 2013-08-08 118 const struct attribute_group **bus_groups;
fa6fdb33b Greg Kroah-Hartman 2013-08-08 119 const struct attribute_group **dev_groups;
ed0617b5c Greg Kroah-Hartman 2013-08-08 120 const struct attribute_group **drv_groups;
^1da177e4 Linus Torvalds 2005-04-16 121
^1da177e4 Linus Torvalds 2005-04-16 122 int (*match)(struct device *dev, struct device_driver *drv);
7eff2e7a8 Kay Sievers 2007-08-14 123 int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
594c8281f Russell King 2006-01-05 124 int (*probe)(struct device *dev);
594c8281f Russell King 2006-01-05 125 int (*remove)(struct device *dev);
594c8281f Russell King 2006-01-05 126 void (*shutdown)(struct device *dev);
7c8265f51 Linus Torvalds 2006-06-24 127
4f3549d72 Rafael J. Wysocki 2013-05-02 128 int (*online)(struct device *dev);
4f3549d72 Rafael J. Wysocki 2013-05-02 129 int (*offline)(struct device *dev);
4f3549d72 Rafael J. Wysocki 2013-05-02 130
^1da177e4 Linus Torvalds 2005-04-16 131 int (*suspend)(struct device *dev, pm_message_t state);
^1da177e4 Linus Torvalds 2005-04-16 132 int (*resume)(struct device *dev);
b8c5cec23 Kay Sievers 2007-02-16 133
582a686f5 Phil Sutter 2017-01-18 134 int (*num_vf)(struct device *dev);
582a686f5 Phil Sutter 2017-01-18 135
07397df29 Nipun Gupta 2018-04-28 136 int (*dma_configure)(struct device *dev);
07397df29 Nipun Gupta 2018-04-28 137
8150f32b9 Dmitry Torokhov 2009-07-24 138 const struct dev_pm_ops *pm;
1eede070a Rafael J. Wysocki 2008-05-20 139
b22f6434c Thierry Reding 2014-06-27 140 const struct iommu_ops *iommu_ops;
ff21776d1 Joerg Roedel 2011-08-26 141
6b6e39a6a Kay Sievers 2010-11-15 142 struct subsys_private *p;
be871b7e5 Michal Hocko 2013-03-12 143 struct lock_class_key lock_key;
d89e2378a Robin Murphy 2017-10-12 144
8c97a46af Martin Liu 2018-05-31 145 bool need_parent_lock;
1bb174019 Zhang Ning 2018-06-29 146
1bb174019 Zhang Ning 2018-06-29 147 bool manage_deferred;
1bb174019 Zhang Ning 2018-06-29 148 struct list_head deferred_probe_pending_list;
^1da177e4 Linus Torvalds 2005-04-16 149 };
^1da177e4 Linus Torvalds 2005-04-16 @150
:::::: The code at line 150 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
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