Hi Daniel,
First bad commit (maybe != root cause):
tree: git://anongit.freedesktop.org/drm-intel topic/core-for-CI
head: 1bb5f7fce1fe95fb9a9a9a23845b286ca47c9ed6
commit: 64b3f927aacc356dd742b3a83aead21fba7e56dd [6/9] lockdep: finer-grained completion key for kthread
reproduce: make htmldocs
All warnings (new ones prefixed by >>):
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'
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
include/net/mac80211.h:2083: warning: bad line: >
net/mac80211/sta_info.h:586: warning: Function parameter or member 'rx_stats_avg' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'rx_stats_avg.signal' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'rx_stats_avg.chain_signal' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.filtered' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.retry_failed' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.retry_count' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.lost_packets' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.last_tdls_pkt_time' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.msdu_retries' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.msdu_failed' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.last_ack' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.last_ack_signal' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.ack_signal_filled' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'tx_stats.packets' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'tx_stats.bytes' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'tx_stats.last_rate' not described in 'sta_info'
net/mac80211/sta_info.h:586: warning: Function parameter or member 'tx_stats.msdu' not described in 'sta_info'
kernel/sched/fair.c:3731: warning: Function parameter or member 'flags' not described in 'attach_entity_load_avg'
>> kernel/kthread.c:377: warning: Function parameter or member 'exited_key' not described in '_kthread_create_on_node'
>> kernel/kthread.c:377: warning: Function parameter or member 'parked_key' not described in '_kthread_create_on_node'
>> kernel/kthread.c:723: warning: Function parameter or member 'exited_key' not described in '_kthread_create_worker'
>> kernel/kthread.c:723: warning: Function parameter or member 'parked_key' not described in '_kthread_create_worker'
>> kernel/kthread.c:758: warning: Function parameter or member 'exited_key' not described in '_kthread_create_worker_on_cpu'
>> kernel/kthread.c:758: warning: Function parameter or member 'parked_key' not described in '_kthread_create_worker_on_cpu'
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'
Error: Cannot open file drivers/base/firmware_class.c
WARNING: kernel-doc 'scripts/kernel-doc -rst -enable-lineno -function request_firmware drivers/base/firmware_class.c' failed with return code 1
Error: Cannot open file drivers/base/firmware_class.c
WARNING: kernel-doc 'scripts/kernel-doc -rst -enable-lineno -function request_firmware_direct drivers/base/firmware_class.c' failed with return code 1
Error: Cannot open file drivers/base/firmware_class.c
WARNING: kernel-doc 'scripts/kernel-doc -rst -enable-lineno -function request_firmware_into_buf drivers/base/firmware_class.c' failed with return code 1
Error: Cannot open file drivers/base/firmware_class.c
WARNING: kernel-doc 'scripts/kernel-doc -rst -enable-lineno -function request_firmware_nowait drivers/base/firmware_class.c' failed with return code 1
Error: Cannot open file drivers/base/firmware_class.c
WARNING: kernel-doc 'scripts/kernel-doc -rst -enable-lineno -function firmware_request_cache drivers/base/firmware_class.c' failed with return code 1
include/linux/gpio/driver.h:142: warning: Function parameter or member 'request_key' not described in 'gpio_irq_chip'
include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.sign' not described in 'iio_chan_spec'
include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.realbits' not described in 'iio_chan_spec'
include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.storagebits' not described in 'iio_chan_spec'
include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.shift' not described in 'iio_chan_spec'
include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.repeat' not described in 'iio_chan_spec'
include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.endianness' not described in 'iio_chan_spec'
include/linux/iio/hw-consumer.h:1: warning: no structured comments found
Error: Cannot open file drivers/base/firmware_class.c
Error: Cannot open file drivers/base/firmware_class.c
WARNING: kernel-doc 'scripts/kernel-doc -rst -enable-lineno -export drivers/base/firmware_class.c' failed with return code 2
include/linux/input/sparse-keymap.h:46: warning: Function parameter or member 'sw' not described in 'key_entry'
include/linux/mtd/rawnand.h:752: warning: Function parameter or member 'timings.sdr' not described in 'nand_data_interface'
include/linux/mtd/rawnand.h:817: warning: Function parameter or member 'buf' not described in 'nand_op_data_instr'
include/linux/mtd/rawnand.h:817: warning: Function parameter or member 'buf.in' not described in 'nand_op_data_instr'
include/linux/mtd/rawnand.h:817: warning: Function parameter or member 'buf.out' not described in 'nand_op_data_instr'
include/linux/mtd/rawnand.h:863: warning: Function parameter or member 'ctx' not described in 'nand_op_instr'
include/linux/mtd/rawnand.h:863: warning: Function parameter or member 'ctx.cmd' not described in 'nand_op_instr'
include/linux/mtd/rawnand.h:863: warning: Function parameter or member 'ctx.addr' not described in 'nand_op_instr'
include/linux/mtd/rawnand.h:863: warning: Function parameter or member 'ctx.data' not described in 'nand_op_instr'
include/linux/mtd/rawnand.h:863: warning: Function parameter or member 'ctx.waitrdy' not described in 'nand_op_instr'
include/linux/mtd/rawnand.h:1010: warning: Function parameter or member 'ctx' not described in 'nand_op_parser_pattern_elem'
include/linux/mtd/rawnand.h:1010: warning: Function parameter or member 'ctx.addr' not described in 'nand_op_parser_pattern_elem'
include/linux/mtd/rawnand.h:1010: warning: Function parameter or member 'ctx.data' not described in 'nand_op_parser_pattern_elem'
include/linux/mtd/rawnand.h:1313: warning: Function parameter or member 'manufacturer.desc' not described in 'nand_chip'
include/linux/mtd/rawnand.h:1313: warning: Function parameter or member 'manufacturer.priv' not described in 'nand_chip'
include/linux/regulator/driver.h:222: warning: Function parameter or member 'resume_early' not described in 'regulator_ops'
drivers/regulator/core.c:4306: 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/typec/mux.c:186: warning: Function parameter or member 'mux' not described in 'typec_mux_unregister'
drivers/usb/typec/mux.c:186: warning: Excess function parameter 'sw' description in 'typec_mux_unregister'
vim +377 kernel/kthread.c
255451e4 Petr Mladek 2016-10-11 346
255451e4 Petr Mladek 2016-10-11 347 /**
255451e4 Petr Mladek 2016-10-11 348 * kthread_create_on_node - create a kthread.
255451e4 Petr Mladek 2016-10-11 349 * @threadfn: the function to run until signal_pending(current).
255451e4 Petr Mladek 2016-10-11 350 * @data: data ptr for @threadfn.
255451e4 Petr Mladek 2016-10-11 351 * @node: task and thread structures for the thread are allocated on this node
255451e4 Petr Mladek 2016-10-11 352 * @namefmt: printf-style name for the thread.
255451e4 Petr Mladek 2016-10-11 353 *
255451e4 Petr Mladek 2016-10-11 354 * Description: This helper function creates and names a kernel
255451e4 Petr Mladek 2016-10-11 355 * thread. The thread will be stopped: use wake_up_process() to start
255451e4 Petr Mladek 2016-10-11 356 * it. See also kthread_run(). The new thread has SCHED_NORMAL policy and
255451e4 Petr Mladek 2016-10-11 357 * is affine to all CPUs.
255451e4 Petr Mladek 2016-10-11 358 *
255451e4 Petr Mladek 2016-10-11 359 * If thread is going to be bound on a particular cpu, give its node
255451e4 Petr Mladek 2016-10-11 360 * in @node, to get NUMA affinity for kthread stack, or else give NUMA_NO_NODE.
255451e4 Petr Mladek 2016-10-11 361 * When woken, the thread will run @threadfn() with @data as its
255451e4 Petr Mladek 2016-10-11 362 * argument. @threadfn() can either call do_exit() directly if it is a
255451e4 Petr Mladek 2016-10-11 363 * standalone thread for which no one will call kthread_stop(), or
255451e4 Petr Mladek 2016-10-11 364 * return when 'kthread_should_stop()' is true (which means
255451e4 Petr Mladek 2016-10-11 365 * kthread_stop() has been called). The return value should be zero
255451e4 Petr Mladek 2016-10-11 366 * or a negative error number; it will be passed to kthread_stop().
255451e4 Petr Mladek 2016-10-11 367 *
255451e4 Petr Mladek 2016-10-11 368 * Returns a task_struct or ERR_PTR(-ENOMEM) or ERR_PTR(-EINTR).
255451e4 Petr Mladek 2016-10-11 369 */
64b3f927 Daniel Vetter 2017-11-29 370 struct task_struct *_kthread_create_on_node(int (*threadfn)(void *data),
255451e4 Petr Mladek 2016-10-11 371 void *data, int node,
64b3f927 Daniel Vetter 2017-11-29 372 struct lock_class_key *exited_key,
64b3f927 Daniel Vetter 2017-11-29 373 struct lock_class_key *parked_key,
255451e4 Petr Mladek 2016-10-11 374 const char namefmt[],
255451e4 Petr Mladek 2016-10-11 375 ...)
255451e4 Petr Mladek 2016-10-11 376 {
255451e4 Petr Mladek 2016-10-11 @377 struct task_struct *task;
255451e4 Petr Mladek 2016-10-11 378 va_list args;
255451e4 Petr Mladek 2016-10-11 379
255451e4 Petr Mladek 2016-10-11 380 va_start(args, namefmt);
64b3f927 Daniel Vetter 2017-11-29 381 task = __kthread_create_on_node(threadfn, data, node,
64b3f927 Daniel Vetter 2017-11-29 382 exited_key, parked_key, namefmt, args);
255451e4 Petr Mladek 2016-10-11 383 va_end(args);
255451e4 Petr Mladek 2016-10-11 384
255451e4 Petr Mladek 2016-10-11 385 return task;
255451e4 Petr Mladek 2016-10-11 386 }
64b3f927 Daniel Vetter 2017-11-29 387 EXPORT_SYMBOL(_kthread_create_on_node);
^1da177e Linus Torvalds 2005-04-16 388
:::::: The code at line 377 was first introduced by commit
:::::: 255451e45345bcd19e79f25e9afc0b9e14ccb104 kthread: allow to call __kthread_create_on_node() with va_list args
:::::: TO: Petr Mladek <pmladek@xxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
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