[alsa-devel] [PATCH 2/6] ALSA: fireworks: simplify symbol space for local linkage
Takashi Sakamoto
o-takashi at sakamocchi.jp
Tue Jan 3 13:41:17 CET 2017
This module has some implementations for operation structures which sound
subsystem defines. All of them are referred just by each local function to
register corresponding operations. In this case, it's better to put them
into the function local so that symbol space in local linkage of
translation unit is kept to be simple.
This commit moves such symbols to function local.
Signed-off-by: Takashi Sakamoto <o-takashi at sakamocchi.jp>
---
sound/firewire/fireworks/fireworks_hwdep.c | 19 ++++++-----
sound/firewire/fireworks/fireworks_midi.c | 26 +++++++--------
sound/firewire/fireworks/fireworks_pcm.c | 52 ++++++++++++++----------------
3 files changed, 46 insertions(+), 51 deletions(-)
diff --git a/sound/firewire/fireworks/fireworks_hwdep.c b/sound/firewire/fireworks/fireworks_hwdep.c
index 2e1d9a2..a3a3a16 100644
--- a/sound/firewire/fireworks/fireworks_hwdep.c
+++ b/sound/firewire/fireworks/fireworks_hwdep.c
@@ -303,17 +303,16 @@ hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file,
#define hwdep_compat_ioctl NULL
#endif
-static const struct snd_hwdep_ops hwdep_ops = {
- .read = hwdep_read,
- .write = hwdep_write,
- .release = hwdep_release,
- .poll = hwdep_poll,
- .ioctl = hwdep_ioctl,
- .ioctl_compat = hwdep_compat_ioctl,
-};
-
int snd_efw_create_hwdep_device(struct snd_efw *efw)
{
+ static const struct snd_hwdep_ops ops = {
+ .read = hwdep_read,
+ .write = hwdep_write,
+ .release = hwdep_release,
+ .poll = hwdep_poll,
+ .ioctl = hwdep_ioctl,
+ .ioctl_compat = hwdep_compat_ioctl,
+ };
struct snd_hwdep *hwdep;
int err;
@@ -322,7 +321,7 @@ int snd_efw_create_hwdep_device(struct snd_efw *efw)
goto end;
strcpy(hwdep->name, "Fireworks");
hwdep->iface = SNDRV_HWDEP_IFACE_FW_FIREWORKS;
- hwdep->ops = hwdep_ops;
+ hwdep->ops = ops;
hwdep->private_data = efw;
hwdep->exclusive = true;
end:
diff --git a/sound/firewire/fireworks/fireworks_midi.c b/sound/firewire/fireworks/fireworks_midi.c
index 3e8c4cf..2873eca 100644
--- a/sound/firewire/fireworks/fireworks_midi.c
+++ b/sound/firewire/fireworks/fireworks_midi.c
@@ -107,18 +107,6 @@ static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
spin_unlock_irqrestore(&efw->lock, flags);
}
-static struct snd_rawmidi_ops midi_capture_ops = {
- .open = midi_capture_open,
- .close = midi_capture_close,
- .trigger = midi_capture_trigger,
-};
-
-static struct snd_rawmidi_ops midi_playback_ops = {
- .open = midi_playback_open,
- .close = midi_playback_close,
- .trigger = midi_playback_trigger,
-};
-
static void set_midi_substream_names(struct snd_efw *efw,
struct snd_rawmidi_str *str)
{
@@ -132,6 +120,16 @@ static void set_midi_substream_names(struct snd_efw *efw,
int snd_efw_create_midi_devices(struct snd_efw *efw)
{
+ static struct snd_rawmidi_ops capture_ops = {
+ .open = midi_capture_open,
+ .close = midi_capture_close,
+ .trigger = midi_capture_trigger,
+ };
+ static struct snd_rawmidi_ops playback_ops = {
+ .open = midi_playback_open,
+ .close = midi_playback_close,
+ .trigger = midi_playback_trigger,
+ };
struct snd_rawmidi *rmidi;
struct snd_rawmidi_str *str;
int err;
@@ -151,7 +149,7 @@ int snd_efw_create_midi_devices(struct snd_efw *efw)
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
- &midi_capture_ops);
+ &capture_ops);
str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT];
@@ -162,7 +160,7 @@ int snd_efw_create_midi_devices(struct snd_efw *efw)
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
- &midi_playback_ops);
+ &playback_ops);
str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT];
diff --git a/sound/firewire/fireworks/fireworks_pcm.c b/sound/firewire/fireworks/fireworks_pcm.c
index f4fbf75..9171702 100644
--- a/sound/firewire/fireworks/fireworks_pcm.c
+++ b/sound/firewire/fireworks/fireworks_pcm.c
@@ -383,33 +383,31 @@ static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstrm)
return amdtp_stream_pcm_pointer(&efw->rx_stream);
}
-static const struct snd_pcm_ops pcm_capture_ops = {
- .open = pcm_open,
- .close = pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_capture_hw_params,
- .hw_free = pcm_capture_hw_free,
- .prepare = pcm_capture_prepare,
- .trigger = pcm_capture_trigger,
- .pointer = pcm_capture_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
-};
-
-static const struct snd_pcm_ops pcm_playback_ops = {
- .open = pcm_open,
- .close = pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_playback_hw_params,
- .hw_free = pcm_playback_hw_free,
- .prepare = pcm_playback_prepare,
- .trigger = pcm_playback_trigger,
- .pointer = pcm_playback_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
- .mmap = snd_pcm_lib_mmap_vmalloc,
-};
-
int snd_efw_create_pcm_devices(struct snd_efw *efw)
{
+ static const struct snd_pcm_ops capture_ops = {
+ .open = pcm_open,
+ .close = pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = pcm_capture_hw_params,
+ .hw_free = pcm_capture_hw_free,
+ .prepare = pcm_capture_prepare,
+ .trigger = pcm_capture_trigger,
+ .pointer = pcm_capture_pointer,
+ .page = snd_pcm_lib_get_vmalloc_page,
+ };
+ static const struct snd_pcm_ops playback_ops = {
+ .open = pcm_open,
+ .close = pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = pcm_playback_hw_params,
+ .hw_free = pcm_playback_hw_free,
+ .prepare = pcm_playback_prepare,
+ .trigger = pcm_playback_trigger,
+ .pointer = pcm_playback_pointer,
+ .page = snd_pcm_lib_get_vmalloc_page,
+ .mmap = snd_pcm_lib_mmap_vmalloc,
+ };
struct snd_pcm *pcm;
int err;
@@ -419,8 +417,8 @@ int snd_efw_create_pcm_devices(struct snd_efw *efw)
pcm->private_data = efw;
snprintf(pcm->name, sizeof(pcm->name), "%s PCM", efw->card->shortname);
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_playback_ops);
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_capture_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
end:
return err;
}
--
2.9.3
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