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authorAdrian Hunter <adrian.hunter@intel.com>2018-11-22 14:29:37 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-12-17 20:54:21 +0300
commit0631ca3a6e6edd23a2ca7cab707d1abf291a097d (patch)
tree88a5b31e3e36871e45808388381bd28258f5bcd4
parent692d0e63324d2954a0c63a812a8588e97023a295 (diff)
downloadlinux-0631ca3a6e6edd23a2ca7cab707d1abf291a097d.tar.xz
tools lib traceevent: Fix compile warnings in tools/lib/traceevent/event-parse.c
Fix following warnings: event-parse.c: In function ‘tep_find_event_by_name’: event-parse.c:3521:21: warning: ‘event’ may be used uninitialized in this function [-Wmaybe-uninitialized] pevent->last_event = event; ~~~~~~~~~~~~~~~~~~~^~~~~~~ CC ui/gtk/hists.o LINK plugin_mac80211.so CC nlattr.o event-parse.c: In function ‘tep_data_lat_fmt’: event-parse.c:5200:4: warning: ‘migrate_disable’ may be used uninitialized in this function [-Wmaybe-uninitialized] trace_seq_printf(s, "%d", migrate_disable); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ event-parse.c:5207:4: warning: ‘lock_depth’ may be used uninitialized in this function [-Wmaybe-uninitialized] trace_seq_printf(s, "%d", lock_depth); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ LINK plugin_sched_switch.so LINK plugin_function.so LINK plugin_xen.so event-parse.c: In function ‘tep_event_info’: event-parse.c:5047:7: warning: ‘len_arg’ may be used uninitialized in this function [-Wmaybe-uninitialized] trace_seq_printf(s, format, len_arg, (char)val); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ event-parse.c:4884:6: note: ‘len_arg’ was declared here int len_arg; ^~~~~~~ event-parse.c:4338:11: warning: ‘vsize’ may be used uninitialized in this function [-Wmaybe-uninitialized] val = tep_read_number(pevent, bptr, vsize); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ event-parse.c:4224:6: note: ‘vsize’ was declared here int vsize; ^~~~~ $ gcc --version gcc (Clear Linux OS for Intel Architecture) 8.2.1 20180502 Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com> Link: http://lkml.kernel.org/r/20181122112937.10582-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/lib/traceevent/event-parse.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 3692f29fee46..fbd6d6813fab 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3498,7 +3498,7 @@ struct tep_event_format *
tep_find_event_by_name(struct tep_handle *pevent,
const char *sys, const char *name)
{
- struct tep_event_format *event;
+ struct tep_event_format *event = NULL;
int i;
if (pevent->last_event &&
@@ -4221,7 +4221,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
unsigned long long ip, val;
char *ptr;
void *bptr;
- int vsize;
+ int vsize = 0;
field = pevent->bprint_buf_field;
ip_field = pevent->bprint_ip_field;
@@ -4881,7 +4881,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
char format[32];
int show_func;
int len_as_arg;
- int len_arg;
+ int len_arg = 0;
int len;
int ls;
@@ -5146,8 +5146,8 @@ void tep_data_lat_fmt(struct tep_handle *pevent,
static int migrate_disable_exists;
unsigned int lat_flags;
unsigned int pc;
- int lock_depth;
- int migrate_disable;
+ int lock_depth = 0;
+ int migrate_disable = 0;
int hardirq;
int softirq;
void *data = record->data;