[Qemu-devel] [PULL 15/20] audio: remove LOG_TO_MONITOR along with default_mon

[Gerd Hoffmann <kraxel@redhat.com>]

From: Kővágó, Zoltán <dirty.ice.hu@gmail.com>

Setting QEMU_AUDIO_LOG_TO_MONITOR=1 can crash qemu (if qemu tries to log
to the monitor before it's being initialized), and also nothing else in
qemu logs to the monitor.

This log to monitor feature was the last thing that used the default_mon
variable, so I removed it too (as using it can cause problems).

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 audio/audio.c             | 23 +++--------------------
 include/monitor/monitor.h |  1 -
 monitor.c                 |  4 ----
 3 files changed, 3 insertions(+), 25 deletions(-)

diff --git a/audio/audio.c b/audio/audio.c
index 9d018e9..cb1cba9 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -67,7 +67,6 @@ static struct {
         int64_t ticks;
     } period;
     int plive;
-    int log_to_monitor;
     int try_poll_in;
     int try_poll_out;
 } conf = {
@@ -97,7 +96,6 @@ static struct {
 
     .period = { .hertz = 100 },
     .plive = 0,
-    .log_to_monitor = 0,
     .try_poll_in = 1,
     .try_poll_out = 1,
 };
@@ -331,20 +329,11 @@ static const char *audio_get_conf_str (const char *key,
 
 void AUD_vlog (const char *cap, const char *fmt, va_list ap)
 {
-    if (conf.log_to_monitor) {
-        if (cap) {
-            monitor_printf(default_mon, "%s: ", cap);
-        }
-
-        monitor_vprintf(default_mon, fmt, ap);
+    if (cap) {
+        fprintf(stderr, "%s: ", cap);
     }
-    else {
-        if (cap) {
-            fprintf (stderr, "%s: ", cap);
-        }
 
-        vfprintf (stderr, fmt, ap);
-    }
+    vfprintf(stderr, fmt, ap);
 }
 
 void AUD_log (const char *cap, const char *fmt, ...)
@@ -1654,12 +1643,6 @@ static struct audio_option audio_options[] = {
         .valp  = &conf.plive,
         .descr = "(undocumented)"
     },
-    {
-        .name  = "LOG_TO_MONITOR",
-        .tag   = AUD_OPT_BOOL,
-        .valp  = &conf.log_to_monitor,
-        .descr = "Print logging messages to monitor instead of stderr"
-    },
     { /* End of list */ }
 };
 
diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h
index 57f8394..88644ce 100644
--- a/include/monitor/monitor.h
+++ b/include/monitor/monitor.h
@@ -8,7 +8,6 @@
 #include "qemu/readline.h"
 
 extern Monitor *cur_mon;
-extern Monitor *default_mon;
 
 /* flags for monitor_init */
 #define MONITOR_IS_DEFAULT    0x01
diff --git a/monitor.c b/monitor.c
index 6a46424..8e1a2e8 100644
--- a/monitor.c
+++ b/monitor.c
@@ -226,7 +226,6 @@ static mon_cmd_t info_cmds[];
 static const mon_cmd_t qmp_cmds[];
 
 Monitor *cur_mon;
-Monitor *default_mon;
 
 static void monitor_command_cb(void *opaque, const char *cmdline,
                                void *readline_opaque);
@@ -5298,9 +5297,6 @@ void monitor_init(CharDriverState *chr, int flags)
     qemu_mutex_lock(&monitor_lock);
     QLIST_INSERT_HEAD(&mon_list, mon, entry);
     qemu_mutex_unlock(&monitor_lock);
-
-    if (!default_mon || (flags & MONITOR_IS_DEFAULT))
-        default_mon = mon;
 }
 
 static void bdrv_password_cb(void *opaque, const char *password,
-- 
1.8.3.1