linux/kernel/trace
JaeSang Yoo 3203ce39ac tracing: Fix tp_printk option related with tp_printk_stop_on_boot
The kernel parameter "tp_printk_stop_on_boot" starts with "tp_printk" which is
the same as another kernel parameter "tp_printk". If "tp_printk" setup is
called before the "tp_printk_stop_on_boot", it will override the latter
and keep it from being set.

This is similar to other kernel parameter issues, such as:
  Commit 745a600cf1 ("um: console: Ignore console= option")
or init/do_mounts.c:45 (setup function of "ro" kernel param)

Fix it by checking for a "_" right after the "tp_printk" and if that
exists do not process the parameter.

Link: https://lkml.kernel.org/r/20220208195421.969326-1-jsyoo5b@gmail.com

Signed-off-by: JaeSang Yoo <jsyoo5b@gmail.com>
[ Fixed up change log and added space after if condition ]
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-02-08 15:47:00 -05:00
..
blktrace.c blktrace: switch trace spinlock to a raw spinlock 2021-12-20 13:50:14 -07:00
bpf_trace.c bpf: Add MEM_RDONLY for helper args that are pointers to rdonly mem. 2021-12-18 13:27:41 -08:00
bpf_trace.h
error_report-traces.c
fgraph.c
ftrace_internal.h
ftrace.c ftrace: Fix s390 breakage from sorting mcount tables 2022-01-23 08:07:02 +02:00
Kconfig ftrace: Have architectures opt-in for mcount build time sorting 2022-01-27 19:15:44 -05:00
kprobe_event_gen_test.c
Makefile
pid_list.c
pid_list.h
power-traces.c
preemptirq_delay_test.c
ring_buffer_benchmark.c
ring_buffer.c ring-buffer: make use of the helper function kthread_run_on_cpu() 2022-01-15 16:30:23 +02:00
rpm-traces.c
synth_event_gen_test.c
trace_benchmark.c
trace_benchmark.h
trace_boot.c
trace_branch.c
trace_clock.c
trace_dynevent.c
trace_dynevent.h
trace_entries.h
trace_eprobe.c tracing: Remove ops param from event_command reg()/unreg() callbacks 2022-01-10 11:09:11 -05:00
trace_event_perf.c
trace_events_filter_test.h
trace_events_filter.c tracing: Add ustring operation to filtering string pointers 2022-01-14 03:42:24 -05:00
trace_events_hist.c tracing: Propagate is_signed to expression 2022-01-27 19:15:49 -05:00
trace_events_inject.c tracing: Support __rel_loc relative dynamic data location attribute 2021-12-06 15:37:21 -05:00
trace_events_synth.c Tracing updates for 5.17: 2022-01-16 10:15:32 +02:00
trace_events_trigger.c tracing: Add helper functions to simplify event_command.parse() callback handling 2022-01-10 11:09:11 -05:00
trace_events.c tracing: Remove duplicate warnings when calling trace_create_file() 2022-01-13 17:02:42 -05:00
trace_export.c
trace_functions_graph.c
trace_functions.c
trace_hwlat.c trace/hwlat: make use of the helper function kthread_run_on_cpu() 2022-01-15 16:30:24 +02:00
trace_irqsoff.c
trace_kdb.c
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c Tracing updates for 5.17: 2022-01-16 10:15:32 +02:00
trace_mmiotrace.c
trace_nop.c
trace_osnoise.c Tracing updates for 5.17: 2022-01-16 10:15:32 +02:00
trace_output.c tracing: Account bottom half disabled sections. 2022-01-13 16:23:04 -05:00
trace_output.h
trace_preemptirq.c
trace_printk.c
trace_probe_tmpl.h
trace_probe.c tracing/probes: check the return value of kstrndup() for pbuf 2022-01-13 16:23:04 -05:00
trace_probe.h
trace_recursion_record.c
trace_sched_switch.c
trace_sched_wakeup.c
trace_selftest_dynamic.c
trace_selftest.c
trace_seq.c
trace_stack.c
trace_stat.c
trace_stat.h
trace_synth.h
trace_syscalls.c tracing: Have syscall trace events use trace_event_buffer_lock_reserve() 2022-01-13 16:23:05 -05:00
trace_uprobe.c Tracing updates for 5.17: 2022-01-16 10:15:32 +02:00
trace.c tracing: Fix tp_printk option related with tp_printk_stop_on_boot 2022-02-08 15:47:00 -05:00
trace.h tracing: Add helper functions to simplify event_command.parse() callback handling 2022-01-10 11:09:11 -05:00
tracing_map.c tracing: Fix a kmemleak false positive in tracing_map 2021-12-01 21:04:34 -05:00
tracing_map.h