[tip:WIP.sched/core 4/11] htmldocs: include/linux/wait.h:155: warning: No description found for parameter 'wq_head'

From: kbuild test robot
Date: Thu Mar 09 2017 - 10:17:52 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.sched/core
head: 0605ab6fd5aa0c78133fc6611fa5e4f17e46c396
commit: 0f503ec9eb50ffbc1d0541674efe48bc7fdd3f99 [4/11] sched/wait: Standardize internal naming of wait-queue heads
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

include/linux/init.h:1: warning: no structured comments found
kernel/sched/core.c:2085: warning: No description found for parameter 'rf'
kernel/sched/core.c:2085: warning: Excess function parameter 'cookie' description in 'try_to_wake_up_local'
>> include/linux/wait.h:155: warning: No description found for parameter 'wq_head'
include/linux/wait.h:155: warning: Excess function parameter 'wq' description in 'wq_has_sleeper'
include/linux/kthread.h:26: warning: Excess function parameter '...' description in 'kthread_create'
kernel/sys.c:1: warning: no structured comments found
include/linux/device.h:969: warning: No description found for parameter 'dma_ops'
drivers/dma-buf/seqno-fence.c:1: warning: no structured comments found
include/linux/iio/iio.h:597: warning: No description found for parameter 'trig_readonly'
include/linux/iio/trigger.h:151: warning: No description found for parameter 'indio_dev'
include/linux/iio/trigger.h:151: warning: No description found for parameter 'trig'
include/linux/device.h:970: warning: No description found for parameter 'dma_ops'
drivers/regulator/core.c:1467: warning: Excess function parameter 'ret' description in 'regulator_dev_lookup'
include/drm/drm_drv.h:438: warning: No description found for parameter 'open'
include/drm/drm_drv.h:438: warning: No description found for parameter 'preclose'
include/drm/drm_drv.h:438: warning: No description found for parameter 'postclose'
include/drm/drm_drv.h:438: warning: No description found for parameter 'lastclose'
include/drm/drm_drv.h:438: warning: No description found for parameter 'set_busid'
include/drm/drm_drv.h:438: warning: No description found for parameter 'irq_handler'
include/drm/drm_drv.h:438: warning: No description found for parameter 'irq_preinstall'
include/drm/drm_drv.h:438: warning: No description found for parameter 'irq_postinstall'
include/drm/drm_drv.h:438: warning: No description found for parameter 'irq_uninstall'
include/drm/drm_drv.h:438: warning: No description found for parameter 'debugfs_init'
include/drm/drm_drv.h:438: warning: No description found for parameter 'debugfs_cleanup'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_open_object'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_close_object'
include/drm/drm_drv.h:438: warning: No description found for parameter 'prime_handle_to_fd'
include/drm/drm_drv.h:438: warning: No description found for parameter 'prime_fd_to_handle'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_prime_export'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_prime_import'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_prime_pin'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_prime_unpin'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_prime_res_obj'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_prime_get_sg_table'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_prime_import_sg_table'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_prime_vmap'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_prime_vunmap'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_prime_mmap'
include/drm/drm_drv.h:438: warning: No description found for parameter 'gem_vm_ops'
include/drm/drm_drv.h:438: warning: No description found for parameter 'major'
include/drm/drm_drv.h:438: warning: No description found for parameter 'minor'
include/drm/drm_drv.h:438: warning: No description found for parameter 'patchlevel'
include/drm/drm_drv.h:438: warning: No description found for parameter 'name'
include/drm/drm_drv.h:438: warning: No description found for parameter 'desc'
include/drm/drm_drv.h:438: warning: No description found for parameter 'date'
include/drm/drm_drv.h:438: warning: No description found for parameter 'driver_features'
include/drm/drm_drv.h:438: warning: No description found for parameter 'ioctls'
include/drm/drm_drv.h:438: warning: No description found for parameter 'num_ioctls'
include/drm/drm_drv.h:438: warning: No description found for parameter 'fops'
include/drm/drm_color_mgmt.h:1: warning: no structured comments found
drivers/gpu/drm/drm_fb_cma_helper.c:557: warning: Excess function parameter 'num_crtc' description in 'drm_fbdev_cma_init'
drivers/gpu/drm/drm_fb_cma_helper.c:558: warning: Excess function parameter 'num_crtc' description in 'drm_fbdev_cma_init'
drivers/gpu/drm/i915/intel_lpe_audio.c:342: warning: No description found for parameter 'pipe'
drivers/gpu/drm/i915/intel_lpe_audio.c:342: warning: No description found for parameter 'dp_output'
drivers/gpu/drm/i915/intel_lpe_audio.c:342: warning: No description found for parameter 'link_rate'
drivers/gpu/drm/i915/intel_lpe_audio.c:343: warning: No description found for parameter 'pipe'
drivers/gpu/drm/i915/intel_lpe_audio.c:343: warning: No description found for parameter 'dp_output'
drivers/gpu/drm/i915/intel_lpe_audio.c:343: warning: No description found for parameter 'link_rate'
drivers/media/dvb-core/dvb_frontend.h:677: warning: No description found for parameter 'refcount'
Documentation/core-api/assoc_array.rst:13: WARNING: Enumerated list ends without a blank line; unexpected unindent.
Documentation/doc-guide/sphinx.rst:110: ERROR: Unknown target name: "sphinx c domain".
kernel/sched/fair.c:7616: WARNING: Inline emphasis start-string without end-string.
kernel/time/timer.c:1200: ERROR: Unexpected indentation.
kernel/time/timer.c:1202: ERROR: Unexpected indentation.
kernel/time/timer.c:1203: WARNING: Block quote ends without a blank line; unexpected unindent.
include/linux/wait.h:126: WARNING: Block quote ends without a blank line; unexpected unindent.
include/linux/wait.h:129: ERROR: Unexpected indentation.
include/linux/wait.h:131: WARNING: Block quote ends without a blank line; unexpected unindent.
kernel/time/hrtimer.c:990: WARNING: Block quote ends without a blank line; unexpected unindent.
kernel/signal.c:322: WARNING: Inline literal start-string without end-string.
include/linux/iio/iio.h:219: ERROR: Unexpected indentation.
include/linux/iio/iio.h:220: WARNING: Block quote ends without a blank line; unexpected unindent.
include/linux/iio/iio.h:226: WARNING: Definition list ends without a blank line; unexpected unindent.
drivers/iio/industrialio-core.c:639: ERROR: Unknown target name: "iio_val".
drivers/iio/industrialio-core.c:646: ERROR: Unknown target name: "iio_val".
drivers/message/fusion/mptbase.c:5051: WARNING: Definition list ends without a blank line; unexpected unindent.
drivers/tty/serial/serial_core.c:1898: WARNING: Definition list ends without a blank line; unexpected unindent.
include/linux/regulator/driver.h:271: ERROR: Unknown target name: "regulator_regmap_x_voltage".
include/linux/spi/spi.h:369: ERROR: Unexpected indentation.
drivers/usb/core/message.c:478: ERROR: Unexpected indentation.
drivers/usb/core/message.c:479: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/driver-api/usb.rst:623: ERROR: Unknown target name: "usb_type".
Documentation/driver-api/usb.rst:623: ERROR: Unknown target name: "usb_dir".
Documentation/driver-api/usb.rst:623: ERROR: Unknown target name: "usb_recip".
Documentation/driver-api/usb.rst:689: ERROR: Unknown target name: "usbdevfs_urb_type".
sound/soc/soc-core.c:2670: ERROR: Unknown target name: "snd_soc_daifmt".
sound/core/jack.c:312: ERROR: Unknown target name: "snd_jack_btn".
WARNING: dvipng command 'dvipng' cannot be run (needed for math display), check the imgmath_dvipng setting

vim +/wq_head +155 include/linux/wait.h

69e51e92a Peter Zijlstra 2015-10-23 139 */
0f503ec9e Ingo Molnar 2017-03-05 140 static inline int waitqueue_active(struct wait_queue_head *wq_head)
^1da177e4 Linus Torvalds 2005-04-16 141 {
0f503ec9e Ingo Molnar 2017-03-05 142 return !list_empty(&wq_head->task_list);
^1da177e4 Linus Torvalds 2005-04-16 143 }
^1da177e4 Linus Torvalds 2005-04-16 144
1ce0bf50a Herbert Xu 2015-11-26 145 /**
1ce0bf50a Herbert Xu 2015-11-26 146 * wq_has_sleeper - check if there are any waiting processes
1ce0bf50a Herbert Xu 2015-11-26 147 * @wq: wait queue head
1ce0bf50a Herbert Xu 2015-11-26 148 *
1ce0bf50a Herbert Xu 2015-11-26 149 * Returns true if wq has waiting processes
1ce0bf50a Herbert Xu 2015-11-26 150 *
1ce0bf50a Herbert Xu 2015-11-26 151 * Please refer to the comment for waitqueue_active.
1ce0bf50a Herbert Xu 2015-11-26 152 */
0f503ec9e Ingo Molnar 2017-03-05 153 static inline bool wq_has_sleeper(struct wait_queue_head *wq_head)
1ce0bf50a Herbert Xu 2015-11-26 154 {
1ce0bf50a Herbert Xu 2015-11-26 @155 /*
1ce0bf50a Herbert Xu 2015-11-26 156 * We need to be sure we are in sync with the
1ce0bf50a Herbert Xu 2015-11-26 157 * add_wait_queue modifications to the wait queue.
1ce0bf50a Herbert Xu 2015-11-26 158 *
1ce0bf50a Herbert Xu 2015-11-26 159 * This memory barrier should be paired with one on the
1ce0bf50a Herbert Xu 2015-11-26 160 * waiting side.
1ce0bf50a Herbert Xu 2015-11-26 161 */
1ce0bf50a Herbert Xu 2015-11-26 162 smp_mb();
0f503ec9e Ingo Molnar 2017-03-05 163 return waitqueue_active(wq_head);

:::::: The code at line 155 was first introduced by commit
:::::: 1ce0bf50ae2233c7115a18c0c623662d177b434c net: Generalise wq_has_sleeper helper

:::::: TO: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
:::::: CC: David S. Miller <davem@xxxxxxxxxxxxx>

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