prb_read_valid identifier - Linux source code next-20260811

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linux

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FIXME
- FIXME
  - next-20260811

Documented in 1 files:

kernel/printk/printk_ringbuffer.c, line 2219

Defined in 1 files as a prototype:

kernel/printk/printk_ringbuffer.h, line 398 (as a prototype)

Defined in 1 files as a macro:

kernel/printk/printk.c, line 2517 (as a macro)

Defined in 1 files as a function:

kernel/printk/printk_ringbuffer.c, line 2242 (as a function)

Referenced in 5 files:

Smatch caller information:

kernel/printk/printk_ringbuffer_kunit_test.c prbtest_reader() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb	1548666391704272896
PARAM_VALUE	0	rb->desc_ring.count_bits	8
PARAM_VALUE	0	rb->desc_ring.descs	4654423483267223552
PARAM_VALUE	0	rb->desc_ring.head_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->desc_ring.infos	5303540069959147520
PARAM_VALUE	0	rb->desc_ring.last_finalized_seq.counter	0
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->fail.counter	0
PARAM_VALUE	0	rb->text_data_ring.data	4628938480679534592
PARAM_VALUE	0	rb->text_data_ring.size_bits	13
PARAM_VALUE	2	r	7768633291781369856
PARAM_VALUE	2	r->info	1587787889928577024
PARAM_VALUE	2	r->text_buf	5223409728738578432
PARAM_VALUE	2	r->text_buf_size	132
BUF_SIZE	0	rb	88

kernel/printk/printk_ringbuffer_kunit_test.c prbtest_reader() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb	1548666391704272896
PARAM_VALUE	0	rb->desc_ring.count_bits	8
PARAM_VALUE	0	rb->desc_ring.descs	4654423483267223552
PARAM_VALUE	0	rb->desc_ring.head_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->desc_ring.infos	5303540069959147520
PARAM_VALUE	0	rb->desc_ring.last_finalized_seq.counter	0
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->fail.counter	0
PARAM_VALUE	0	rb->text_data_ring.data	4628938480679534592
PARAM_VALUE	0	rb->text_data_ring.size_bits	13
PARAM_VALUE	2	r	7768633291781369856
PARAM_VALUE	2	r->info	1587787889928577024
PARAM_VALUE	2	r->text_buf	5223409728738578432
PARAM_VALUE	2	r->text_buf_size	132
BUF_SIZE	0	rb	88
CAPPED_DATA	0	rb->desc_ring.tail_id.counter	1
TASK_NOT_RUNNING

kernel/printk/printk_ringbuffer_kunit_test.c prbtest_reader() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb	1548666391704272896
PARAM_VALUE	0	rb->desc_ring.count_bits	8
PARAM_VALUE	0	rb->desc_ring.descs	4654423483267223552
PARAM_VALUE	0	rb->desc_ring.head_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->desc_ring.infos	5303540069959147520
PARAM_VALUE	0	rb->desc_ring.last_finalized_seq.counter	0
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->fail.counter	0
PARAM_VALUE	0	rb->text_data_ring.data	4628938480679534592
PARAM_VALUE	0	rb->text_data_ring.size_bits	13
PARAM_VALUE	2	r	7768633291781369856
PARAM_VALUE	2	r->info	1587787889928577024
PARAM_VALUE	2	r->text_buf	5223409728738578432
PARAM_VALUE	2	r->text_buf_size	132
BUF_SIZE	0	rb	88
CAPPED_DATA	0	rb->desc_ring.tail_id.counter	1
TASK_NOT_RUNNING

kernel/printk/printk_ringbuffer_kunit_test.c prbtest_reader() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb	1548666391704272896
PARAM_VALUE	0	rb->desc_ring.count_bits	8
PARAM_VALUE	0	rb->desc_ring.descs	4654423483267223552
PARAM_VALUE	0	rb->desc_ring.head_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->desc_ring.infos	5303540069959147520
PARAM_VALUE	0	rb->desc_ring.last_finalized_seq.counter	0
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->fail.counter	0
PARAM_VALUE	0	rb->text_data_ring.data	4628938480679534592
PARAM_VALUE	0	rb->text_data_ring.size_bits	13
PARAM_VALUE	2	r	7768633291781369856
PARAM_VALUE	2	r->info	1587787889928577024
PARAM_VALUE	2	r->text_buf	5223409728738578432
PARAM_VALUE	2	r->text_buf_size	132
BUF_SIZE	0	rb	88

kernel/printk/printk_ringbuffer_kunit_test.c prbtest_reader() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb	1548666391704272896
PARAM_VALUE	0	rb->desc_ring.count_bits	8
PARAM_VALUE	0	rb->desc_ring.descs	4654423483267223552
PARAM_VALUE	0	rb->desc_ring.head_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->desc_ring.infos	5303540069959147520
PARAM_VALUE	0	rb->desc_ring.last_finalized_seq.counter	0
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->fail.counter	0
PARAM_VALUE	0	rb->text_data_ring.data	4628938480679534592
PARAM_VALUE	0	rb->text_data_ring.size_bits	13
PARAM_VALUE	2	r	7768633291781369856
PARAM_VALUE	2	r->info	1587787889928577024
PARAM_VALUE	2	r->text_buf	5223409728738578432
PARAM_VALUE	2	r->text_buf_size	132
BUF_SIZE	0	rb	88
CAPPED_DATA	0	rb->desc_ring.tail_id.counter	1
TASK_NOT_RUNNING

kernel/printk/printk_ringbuffer_kunit_test.c prbtest_reader() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb	1548666391704272896
PARAM_VALUE	0	rb->desc_ring.count_bits	8
PARAM_VALUE	0	rb->desc_ring.descs	4654423483267223552
PARAM_VALUE	0	rb->desc_ring.head_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->desc_ring.infos	5303540069959147520
PARAM_VALUE	0	rb->desc_ring.last_finalized_seq.counter	0
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	0	rb->fail.counter	0
PARAM_VALUE	0	rb->text_data_ring.data	4628938480679534592
PARAM_VALUE	0	rb->text_data_ring.size_bits	13
PARAM_VALUE	2	r	7768633291781369856
PARAM_VALUE	2	r->info	1587787889928577024
PARAM_VALUE	2	r->text_buf	5223409728738578432
PARAM_VALUE	2	r->text_buf_size	132
BUF_SIZE	0	rb	88
CAPPED_DATA	0	rb->desc_ring.tail_id.counter	1
TASK_NOT_RUNNING

kernel/printk/printk.c __console_flush_and_unlock() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	2	r	0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&_T->lock->lock
HALF_LOCKED2		&b->c->verify_lock
HALF_LOCKED2		&b->io_mutex
HALF_LOCKED2		&ch->open_lock
HALF_LOCKED2		&dev->clientlist_mutex
HALF_LOCKED2		&m->lock
HALF_LOCKED2		&of->mutex
HALF_LOCKED2		_T->flags
HALF_LOCKED2		_T->lock
HALF_LOCKED2		global &console_mutex
HALF_LOCKED2		global &registration_lock
HALF_LOCKED2		global &tty_mutex
HALF_LOCKED2		global &vgasr_mutex
HALF_LOCKED2		global &viafb_pm_hooks_lock
HALF_LOCKED2		irq
HALF_LOCKED2		rcu_read

kernel/printk/printk.c kmsg_dump_get_buffer() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	2	r	6291054084140023808
PARAM_VALUE	2	r->info	7811777040499580928
CAPPED_DATA	0	rb->desc_ring.tail_id.counter	1
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		flags
HALF_LOCKED2		global &psinfo->buf_lock
HALF_LOCKED2		rcu_read

kernel/printk/printk.c kmsg_dump_get_buffer() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	2	r	6291054084140023808
PARAM_VALUE	2	r->info	7811777040499580928
CAPPED_DATA	0	rb->desc_ring.tail_id.counter	1
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		flags
HALF_LOCKED2		global &psinfo->buf_lock
HALF_LOCKED2		rcu_read

kernel/printk/printk.c kmsg_dump_get_line() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	2	r	7611672691623514112
PARAM_VALUE	2	r->info	915431398805868544
PARAM_VALUE	2	r->text_buf	5717528320079499264
PARAM_VALUE	2	r->text_buf_size	201
HALF_LOCKED2		rcu_read

kernel/printk/printk.c legacy_kthread_should_wakeup() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	2	r	0
TASK_NOT_RUNNING
HALF_LOCKED2		global &console_sem

kernel/printk/printk.c printk_get_next_message() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	2	r	4115071307628265472
PARAM_VALUE	2	r->info	7526117390693183488
PARAM_VALUE	2	r->text_buf	4096-ptr_max
PARAM_VALUE	2	r->text_buf_size	1024,2048
DATA_SOURCE	1	seq	$1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&user->lock

kernel/printk/printk.c setup_log_buf() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb	8671433037713358848
PARAM_VALUE	2	r	5853890965509390336
PARAM_VALUE	2	r->info	1372526459607470080
PARAM_VALUE	2	r->text_buf	523419946706395136
PARAM_VALUE	2	r->text_buf_size	1024
LOCK2		flags
LOCK2		irq

kernel/printk/printk.c setup_log_buf() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb	8671433037713358848
PARAM_VALUE	2	r	5853890965509390336
PARAM_VALUE	2	r->info	1372526459607470080
PARAM_VALUE	2	r->text_buf	523419946706395136
PARAM_VALUE	2	r->text_buf_size	1024
LOCK2		flags
LOCK2		irq

kernel/printk/printk.c setup_log_buf() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb	8671433037713358848
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	2	r	5853890965509390336
PARAM_VALUE	2	r->info	1372526459607470080
PARAM_VALUE	2	r->text_buf	523419946706395136
PARAM_VALUE	2	r->text_buf_size	1024
LOCK2		irq

kernel/printk/printk.c setup_log_buf() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb	8671433037713358848
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	2	r	5853890965509390336
PARAM_VALUE	2	r->info	1372526459607470080
PARAM_VALUE	2	r->text_buf	523419946706395136
PARAM_VALUE	2	r->text_buf_size	1024
LOCK2		irq

kernel/printk/printk.c syslog_print() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	2	r	0
RX_PATH

kernel/printk/printk.c syslog_print() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	2	r	0
CAPPED_DATA	0	rb->desc_ring.tail_id.counter	1
RX_PATH
TASK_NOT_RUNNING

kernel/printk/printk.c syslog_print() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	0	rb->desc_ring.tail_id.counter	0-4611686018427387903
PARAM_VALUE	2	r	0
CAPPED_DATA	0	rb->desc_ring.tail_id.counter	1
RX_PATH
TASK_NOT_RUNNING

kernel/printk/printk.c syslog_print() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	2	r	1188496729551286272
PARAM_VALUE	2	r->info	4753443793594986496
PARAM_VALUE	2	r->text_buf	4096-ptr_max
PARAM_VALUE	2	r->text_buf_size	2048
RX_PATH
LOCK2		global &syslog_lock

kernel/printk/printk.c syslog_print_all() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	2	r	752610360589729792
PARAM_VALUE	2	r->info	5330263386491826176
PARAM_VALUE	2	r->text_buf	4096-ptr_max
PARAM_VALUE	2	r->text_buf_size	2048
RX_PATH

kernel/printk/printk.c syslog_print_all() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	2	r	752610360589729792
PARAM_VALUE	2	r->info	5330263386491826176
PARAM_VALUE	2	r->text_buf	4096-ptr_max
PARAM_VALUE	2	r->text_buf_size	2048
RX_PATH

kernel/printk/nbcon.c nbcon_atomic_flush_pending_con() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	1	seq	0-18446744073709551614
PARAM_VALUE	2	r	0
BIT_INFO	1	seq	0x0,0x7fffffffffffffff
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		irq

kernel/printk/nbcon.c nbcon_device_release() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	2	r	0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	1	seq	0
HALF_LOCKED2		&s->port.lock
HALF_LOCKED2		&tup->port.lock
HALF_LOCKED2		&up->lock
HALF_LOCKED2		&up->port.lock
HALF_LOCKED2		_T->lock
HALF_LOCKED2		irq

kernel/printk/nbcon.c nbcon_kthread_should_wakeup() -> prb_read_valid()

Type	Parameter	Key	Value
PARAM_VALUE	2	r	0