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| author | Wei Yang <richard.weiyang@linux.alibaba.com> | 2020-07-03 10:06:10 +0800 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-07-09 18:14:58 -0400 |
| commit | 36b8aacf2a483ba40fbe91c830d314e0bc133044 (patch) | |
| tree | 9b706a5392a724d69fb855ba7d9dcedf3f45ab72 /kernel/trace/trace_output.c | |
| parent | 746cf3459f118592a72ef42e7551777ff17b1684 (diff) | |
| download | linux-36b8aacf2a483ba40fbe91c830d314e0bc133044.tar.gz linux-36b8aacf2a483ba40fbe91c830d314e0bc133044.tar.bz2 linux-36b8aacf2a483ba40fbe91c830d314e0bc133044.zip | |
tracing: Save one trace_event->type by using __TRACE_LAST_TYPE
Static defined trace_event->type stops at (__TRACE_LAST_TYPE - 1) and
dynamic trace_event->type starts from (__TRACE_LAST_TYPE + 1).
To save one trace_event->type index, let's use __TRACE_LAST_TYPE.
Link: https://lkml.kernel.org/r/20200703020612.12930-3-richard.weiyang@linux.alibaba.com
Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_output.c')
| -rw-r--r-- | kernel/trace/trace_output.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index a35232d61601..4d1893564912 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -20,7 +20,7 @@ DECLARE_RWSEM(trace_event_sem); static struct hlist_head event_hash[EVENT_HASHSIZE] __read_mostly; -static int next_event_type = __TRACE_LAST_TYPE + 1; +static int next_event_type = __TRACE_LAST_TYPE; enum print_line_t trace_print_bputs_msg_only(struct trace_iterator *iter) { @@ -675,7 +675,7 @@ static LIST_HEAD(ftrace_event_list); static int trace_search_list(struct list_head **list) { struct trace_event *e; - int next = __TRACE_LAST_TYPE + 1; + int next = __TRACE_LAST_TYPE; if (list_empty(&ftrace_event_list)) { *list = &ftrace_event_list; |