diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-10 11:26:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-10 11:26:25 -0700 |
| commit | 29250d301b0c75ef142b51eebee6b7403cc79624 (patch) | |
| tree | f304faa1aa9e808eaca6e2de67018708674e31c8 | |
| parent | a2d9214c730f54ff72c2940bcd7f22d1fccb26ec (diff) | |
| parent | 4dbbe2d8e95c351157f292ece067f985c30c7b53 (diff) | |
| download | linux-29250d301b0c75ef142b51eebee6b7403cc79624.tar.bz2 | |
Merge tag 'trace-v4.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"This is a trivial patch that changes a check for a cpumask from a NULL
pointer to using cpumask_available(), which will do the check. This is
because cpumasks when not allocated are always set, and clang
complains about it"
* tag 'trace-v4.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Use cpumask_available() to check if cpumask variable may be used
| -rw-r--r-- | kernel/trace/trace.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 4ad4420b33d6..c4536c449021 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3311,13 +3311,14 @@ static void test_cpu_buff_start(struct trace_iterator *iter) if (!(iter->iter_flags & TRACE_FILE_ANNOTATE)) return; - if (iter->started && cpumask_test_cpu(iter->cpu, iter->started)) + if (cpumask_available(iter->started) && + cpumask_test_cpu(iter->cpu, iter->started)) return; if (per_cpu_ptr(iter->trace_buffer->data, iter->cpu)->skipped_entries) return; - if (iter->started) + if (cpumask_available(iter->started)) cpumask_set_cpu(iter->cpu, iter->started); /* Don't print started cpu buffer for the first entry of the trace */ |