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authorTakashi Iwai <tiwai@suse.de>2005-12-01 10:42:42 +0100
committerJaroslav Kysela <perex@suse.cz>2006-01-03 12:30:02 +0100
commite28563cceb9f258ebe3c50fc27d8f4ff0ac4bfa4 (patch)
treeb69095abb998dedc2953368ba2c75978d80f644a /sound/core/timer.c
parent7cd01dd840824e7c6023ad1dbfdb94a2183a7adb (diff)
[ALSA] Optimize for config without PROC_FS
Modules: HWDEP Midlevel,ALSA Core,PCM Midlevel,Timer Midlevel Optimize the code when compiled without CONFIG_PROC_FS. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/timer.c')
-rw-r--r--sound/core/timer.c48
1 files changed, 31 insertions, 17 deletions
diff --git a/sound/core/timer.c b/sound/core/timer.c
index c62dbacdca13..2425b971b240 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -1052,6 +1052,7 @@ static int snd_timer_register_system(void)
return snd_timer_global_register(timer);
}
+#ifdef CONFIG_PROC_FS
/*
* Info interface
*/
@@ -1107,6 +1108,33 @@ static void snd_timer_proc_read(struct snd_info_entry *entry,
up(&register_mutex);
}
+static struct snd_info_entry *snd_timer_proc_entry = NULL;
+
+static void __init snd_timer_proc_init(void)
+{
+ struct snd_info_entry *entry;
+
+ entry = snd_info_create_module_entry(THIS_MODULE, "timers", NULL);
+ if (entry != NULL) {
+ entry->c.text.read_size = SNDRV_TIMER_DEVICES * 128;
+ entry->c.text.read = snd_timer_proc_read;
+ if (snd_info_register(entry) < 0) {
+ snd_info_free_entry(entry);
+ entry = NULL;
+ }
+ }
+ snd_timer_proc_entry = entry;
+}
+
+static void __exit snd_timer_proc_done(void)
+{
+ snd_info_unregister(snd_timer_proc_entry);
+}
+#else /* !CONFIG_PROC_FS */
+#define snd_timer_proc_init()
+#define snd_timer_proc_done()
+#endif
+
/*
* USER SPACE interface
*/
@@ -1928,27 +1956,15 @@ static struct file_operations snd_timer_f_ops =
* ENTRY functions
*/
-static struct snd_info_entry *snd_timer_proc_entry = NULL;
-
static int __init alsa_timer_init(void)
{
int err;
- struct snd_info_entry *entry;
#ifdef SNDRV_OSS_INFO_DEV_TIMERS
snd_oss_info_register(SNDRV_OSS_INFO_DEV_TIMERS, SNDRV_CARDS - 1,
"system timer");
#endif
- entry = snd_info_create_module_entry(THIS_MODULE, "timers", NULL);
- if (entry != NULL) {
- entry->c.text.read_size = SNDRV_TIMER_DEVICES * 128;
- entry->c.text.read = snd_timer_proc_read;
- if (snd_info_register(entry) < 0) {
- snd_info_free_entry(entry);
- entry = NULL;
- }
- }
- snd_timer_proc_entry = entry;
+
if ((err = snd_timer_register_system()) < 0)
snd_printk(KERN_ERR "unable to register system timer (%i)\n",
err);
@@ -1956,6 +1972,7 @@ static int __init alsa_timer_init(void)
&snd_timer_f_ops, NULL, "timer")) < 0)
snd_printk(KERN_ERR "unable to register timer device (%i)\n",
err);
+ snd_timer_proc_init();
return 0;
}
@@ -1969,10 +1986,7 @@ static void __exit alsa_timer_exit(void)
struct snd_timer *timer = list_entry(p, struct snd_timer, device_list);
snd_timer_unregister(timer);
}
- if (snd_timer_proc_entry) {
- snd_info_unregister(snd_timer_proc_entry);
- snd_timer_proc_entry = NULL;
- }
+ snd_timer_proc_done();
#ifdef SNDRV_OSS_INFO_DEV_TIMERS
snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_TIMERS, SNDRV_CARDS - 1);
#endif