Steven Rostedt (VMware) 2519c1bbe3 tracing: Quiet gcc warning about maybe unused link variable ...

Commit 57ea2a34ad ("tracing/kprobes: Fix trace_probe flags on
enable_trace_kprobe() failure") added an if statement that depends on another
if statement that gcc doesn't see will initialize the "link" variable and
gives the warning:

 "warning: 'link' may be used uninitialized in this function"

It is really a false positive, but to quiet the warning, and also to make
sure that it never actually is used uninitialized, initialize the "link"
variable to NULL and add an if (!WARN_ON_ONCE(!link)) where the compiler
thinks it could be used uninitialized.

Cc: stable@vger.kernel.org
Fixes: 57ea2a34ad ("tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

2018-07-25 22:33:50 -04:00

..

blktrace.c

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bpf_trace.c

bpf: guard bpf_get_current_cgroup_id() with CONFIG_CGROUPS

2018-06-04 21:52:26 +02:00

ftrace.c

ftrace: Nuke clear_ftrace_function

2018-07-03 18:33:19 -04:00

Kconfig

docs: Fix some broken references

2018-06-15 18:10:01 -03:00

Makefile

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power-traces.c

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ring_buffer_benchmark.c

…

ring_buffer.c

ring_buffer: tracing: Inherit the tracing setting to next ring buffer

2018-07-25 10:29:41 -04:00

rpm-traces.c

…

trace_benchmark.c

rcu: Rename cond_resched_rcu_qs() to cond_resched_tasks_rcu_qs()

2018-05-15 10:27:29 -07:00

trace_benchmark.h

…

trace_branch.c

…

trace_clock.c

tracing: Hide global trace clock from lockdep

2018-04-06 08:56:52 -04:00

trace_entries.h

tracing: Add trigger file for trace_markers tracefs/ftrace/print

2018-05-29 08:28:53 -04:00

trace_event_perf.c

perf/core: Fix perf_uprobe_init()

2018-04-10 07:33:10 +02:00

trace_events_filter_test.h

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trace_events_filter.c

tracing: Make create_filter() code match the comments

2018-07-03 18:14:40 -04:00

trace_events_hist.c

tracing: Avoid string overflow

2018-07-03 18:14:39 -04:00

trace_events_trigger.c

tracing: Fix possible double free in event_enable_trigger_func()

2018-07-25 21:25:16 -04:00

trace_events.c

tracing: Do not show filter file for ftrace internal events

2018-05-29 08:28:46 -04:00

trace_export.c

tracing: Add trigger file for trace_markers tracefs/ftrace/print

2018-05-29 08:28:53 -04:00

trace_functions_graph.c

tracing: Fix missing return symbol in function_graph output

2018-07-03 18:47:11 -04:00

trace_functions.c

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trace_hwlat.c

…

trace_irqsoff.c

…

trace_kdb.c

…

trace_kprobe.c

tracing: Quiet gcc warning about maybe unused link variable

2018-07-25 22:33:50 -04:00

trace_mmiotrace.c

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trace_nop.c

…

trace_output.c

tracing: Reorder display of TGID to be after PID

2018-07-12 19:56:25 -04:00

trace_output.h

…

trace_printk.c

treewide: Align function definition open/close braces

2018-03-26 11:13:09 +02:00

trace_probe.c

tracing: probeevent: Fix to support minus offset from symbol

2018-03-23 12:02:37 -04:00

trace_probe.h

Merge branch 'perf/urgent' into perf/core

2018-03-29 16:03:48 +02:00

trace_sched_switch.c

…

trace_sched_wakeup.c

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trace_selftest_dynamic.c

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trace_selftest.c

…

trace_seq.c

…

trace_stack.c

tracing: Fix the file mode of stack tracer

2018-05-03 11:58:05 -04:00

trace_stat.c

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trace_stat.h

…

trace_syscalls.c

…

trace_uprobe.c

bpf: introduce bpf subcommand BPF_TASK_FD_QUERY

2018-05-24 18:18:19 -07:00

trace.c

ring_buffer: tracing: Inherit the tracing setting to next ring buffer

2018-07-25 10:29:41 -04:00

trace.h

tracing: Optimize trace_buffer_iter() logic

2018-07-03 18:23:33 -04:00

tracing_map.c

treewide: Use array_size() in vmalloc()

2018-06-12 16:19:22 -07:00

tracing_map.h

tracing: Add per-element variable support to tracing_map

2018-03-10 16:05:53 -05:00