[alsa-devel] [PATCH RESEND v3 0/2] reducing memory footprint of ALSA

newer
[alsa-devel] [PATCH] ALSA: hda -...

older
[alsa-devel] [PATCH] ASoC: codecs:...

Jie Yang

27 May 2015 27 May '15

1:45 p.m.

We are planning to work on reducing memory footprint of ALSA, targeting on small memory embedded devices(e.g. IoT), this series focuses on disabling procfs, hw/sw params refinement, mmap, dpcm, dapm, compressed API, compat code APIs...

We plan to enable those reducing items only for EXPERT, and add knobs in sound/core/Kconfig.

These first two patches is a start, adding SND_PROC_FS to config disable/enable ALSA proc FS, this disabling can save about 9KB code size on x86_64 platform.

Changes in v3: 1. drop SND_REDUCED_MEMORY_FOOTPRINT and make configuration available only for EXPERT; 2. move the configure into sound/core/Kconfig; 3. Add missing Signed-off-by for PATCH 2/2.

Changes in v2: 1. Prompt "Sound Proc FS Support" appears only when SND_REDUCED_MEMORY_FOOTPRINT is true.

Jie Yang (2): ALSA: Kconfig: add config item SND_PROC_FS for expert ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS

-- 1.9.1

Show replies by date

Jie Yang

27 May 27 May

1:45 p.m.

New subject: [alsa-devel] [PATCH RESEND v3 1/2] ALSA: Kconfig: add config item SND_PROC_FS for expert

For some embedded devices, we need reduce code size and data footprint as much as possible, e.g. disabling procfs, hw/sw params refinement, mmap, dpcm, dapm, compressed API...

Here add SND_PROC_FS item for expert, we can unselect it to disable sound proc FS and reduce memory footprint.

Signed-off-by: Jie Yang yang.jie@intel.com --- sound/core/Kconfig | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/sound/core/Kconfig b/sound/core/Kconfig index 63cc2e9..88e0bc4 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -176,9 +176,18 @@ config SND_SUPPORT_OLD_API Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3 or older).

+config SND_PROC_FS + bool "Sound Proc FS Support" if EXPERT + depends on PROC_FS + default y + help + Say 'N' to disable Sound proc FS, which may reduce code size about + 9KB on x86_64 platform. + If unsure say Y. + config SND_VERBOSE_PROCFS bool "Verbose procfs contents" - depends on PROC_FS + depends on SND_PROC_FS default y help Say Y here to include code for verbose procfs contents (provides

-- 1.9.1

Mark Brown

6:31 p.m.

New subject: [alsa-devel] [PATCH RESEND v3 1/2] ALSA: Kconfig: add config item SND_PROC_FS for expert

On Wed, May 27, 2015 at 07:45:44PM +0800, Jie Yang wrote:

...

For some embedded devices, we need reduce code size and data footprint as much as possible, e.g. disabling procfs, hw/sw params refinement, mmap, dpcm, dapm, compressed API...

Reviewed-by: Mark Brown broonie@kernel.org

Jie Yang

1:45 p.m.

New subject: [alsa-devel] [PATCH RESEND v3 2/2] ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS

We may disable proc fs only for sound part, to reduce ALSA memory footprint. So add CONFIG_SND_PROC_FS and replace the old CONFIG_PROC_FSs in alsa code.

With sound proc fs disabled, we can save about 9KB memory size on X86_64 platform.

diff --git a/include/sound/info.h b/include/sound/info.h index 1626995..67390ee 100644 --- a/include/sound/info.h +++ b/include/sound/info.h @@ -92,14 +92,14 @@ struct snd_info_entry { struct list_head list; };

-#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) +#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_SND_PROC_FS) int snd_info_minor_register(void); #else #define snd_info_minor_register() 0 #endif

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS

extern struct snd_info_entry *snd_seq_root; #ifdef CONFIG_SND_OSSEMUL @@ -197,7 +197,7 @@ static inline int snd_info_check_reserved_words(const char *str) { return 1; } * OSS info part */

-#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) +#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_SND_PROC_FS)

#define SNDRV_OSS_INFO_DEV_AUDIO 0 #define SNDRV_OSS_INFO_DEV_SYNTH 1 @@ -210,6 +210,6 @@ static inline int snd_info_check_reserved_words(const char *str) { return 1; } int snd_oss_info_register(int dev, int num, char *string); #define snd_oss_info_unregister(dev, num) snd_oss_info_register(dev, num, NULL)

-#endif /* CONFIG_SND_OSSEMUL && CONFIG_PROC_FS */ +#endif /* CONFIG_SND_OSSEMUL && CONFIG_SND_PROC_FS */

#endif /* __SOUND_INFO_H */ diff --git a/sound/core/Makefile b/sound/core/Makefile index 7dd17a3..9e5bb10 100644 --- a/sound/core/Makefile +++ b/sound/core/Makefile @@ -4,7 +4,7 @@ #

snd-y := sound.o init.o memory.o control.o misc.o device.o -ifneq ($(CONFIG_PROC_FS),) +ifneq ($(CONFIG_SND_PROC_FS),) snd-y += info.o snd-$(CONFIG_SND_OSSEMUL) += info_oss.o endif diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c index 51692c8..36d2416 100644 --- a/sound/core/hwdep.c +++ b/sound/core/hwdep.c @@ -484,7 +484,7 @@ static int snd_hwdep_dev_disconnect(struct snd_device *device) return 0; }

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * Info interface */ @@ -521,10 +521,10 @@ static void __exit snd_hwdep_proc_done(void) { snd_info_free_entry(snd_hwdep_proc_entry); } -#else /* !CONFIG_PROC_FS */ +#else /* !CONFIG_SND_PROC_FS */ #define snd_hwdep_proc_init() #define snd_hwdep_proc_done() -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */

/* diff --git a/sound/core/init.c b/sound/core/init.c index f8abd2d..3e0ceba 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -100,7 +100,7 @@ int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int free_flag); EXPORT_SYMBOL(snd_mixer_oss_notify_callback); #endif

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static void snd_card_id_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { @@ -122,7 +122,7 @@ static int init_info_for_card(struct snd_card *card)

return snd_info_card_register(card); } -#else /* !CONFIG_PROC_FS */ +#else /* !CONFIG_SND_PROC_FS */ #define init_info_for_card(card) #endif

@@ -776,7 +776,7 @@ int snd_card_register(struct snd_card *card)

EXPORT_SYMBOL(snd_card_register);

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static void snd_card_info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { @@ -861,7 +861,7 @@ int __init snd_card_info_init(void)

return 0; } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */

/** * snd_component_add - add a component string diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c index 056f8e2..a99f720 100644 --- a/sound/core/oss/mixer_oss.c +++ b/sound/core/oss/mixer_oss.c @@ -1111,7 +1111,7 @@ static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mix return 0; }

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* */ #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name @@ -1255,10 +1255,10 @@ static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer) snd_info_free_entry(mixer->proc_entry); mixer->proc_entry = NULL; } -#else /* !CONFIG_PROC_FS */ +#else /* !CONFIG_SND_PROC_FS */ #define snd_mixer_oss_proc_init(mix) #define snd_mixer_oss_proc_done(mix) -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */

static void snd_mixer_oss_build(struct snd_mixer_oss *mixer) { diff --git a/sound/core/pcm.c b/sound/core/pcm.c index b25bcf5..e537943 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -1181,7 +1181,7 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree) } EXPORT_SYMBOL(snd_pcm_notify);

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * Info interface */ @@ -1227,10 +1227,10 @@ static void snd_pcm_proc_done(void) snd_info_free_entry(snd_pcm_proc_entry); }

-#else /* !CONFIG_PROC_FS */ +#else /* !CONFIG_SND_PROC_FS */ #define snd_pcm_proc_init() #define snd_pcm_proc_done() -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */

/* diff --git a/sound/core/seq/oss/seq_oss.c b/sound/core/seq/oss/seq_oss.c index 72873a4..7354b8b 100644 --- a/sound/core/seq/oss/seq_oss.c +++ b/sound/core/seq/oss/seq_oss.c @@ -45,7 +45,7 @@ MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MUSIC); */ static int register_device(void); static void unregister_device(void); -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static int register_proc(void); static void unregister_proc(void); #else @@ -261,7 +261,7 @@ unregister_device(void) * /proc interface */

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS

static struct snd_info_entry *info_entry;

@@ -303,4 +303,4 @@ unregister_proc(void) snd_info_free_entry(info_entry); info_entry = NULL; } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c index 2de3fef..b1221b2 100644 --- a/sound/core/seq/oss/seq_oss_init.c +++ b/sound/core/seq/oss/seq_oss_init.c @@ -479,8 +479,7 @@ snd_seq_oss_reset(struct seq_oss_devinfo *dp) snd_seq_oss_timer_stop(dp->timer); }

- -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * misc. functions for proc interface */ @@ -531,4 +530,4 @@ snd_seq_oss_system_info_read(struct snd_info_buffer *buf) snd_seq_oss_readq_info_read(dp->readq, buf); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c index 96e8395..aaff9ee 100644 --- a/sound/core/seq/oss/seq_oss_midi.c +++ b/sound/core/seq/oss/seq_oss_midi.c @@ -665,7 +665,7 @@ snd_seq_oss_midi_make_info(struct seq_oss_devinfo *dp, int dev, struct midi_info }

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * proc interface */ @@ -705,4 +705,4 @@ snd_seq_oss_midi_info_read(struct snd_info_buffer *buf) snd_use_lock_free(&mdev->use_lock); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/oss/seq_oss_readq.c b/sound/core/seq/oss/seq_oss_readq.c index c080c73..ccd8935 100644 --- a/sound/core/seq/oss/seq_oss_readq.c +++ b/sound/core/seq/oss/seq_oss_readq.c @@ -222,7 +222,7 @@ snd_seq_oss_readq_put_timestamp(struct seq_oss_readq *q, unsigned long curt, int }

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * proc interface */ @@ -233,4 +233,4 @@ snd_seq_oss_readq_info_read(struct seq_oss_readq *q, struct snd_info_buffer *buf (waitqueue_active(&q->midi_sleep) ? "sleeping":"running"), q->qlen, q->input_time); } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c index 48e4fe1..0f3b381 100644 --- a/sound/core/seq/oss/seq_oss_synth.c +++ b/sound/core/seq/oss/seq_oss_synth.c @@ -630,7 +630,7 @@ snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_in }

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * proc interface */ @@ -658,4 +658,4 @@ snd_seq_oss_synth_info_read(struct snd_info_buffer *buf) snd_use_lock_free(&rec->use_lock); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c index edbdab8..b64f20d 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -2447,7 +2447,7 @@ EXPORT_SYMBOL(snd_seq_kernel_client_write_poll);

/*---------------------------------------------------------------------------*/

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * /proc interface */ @@ -2549,7 +2549,7 @@ void snd_seq_info_clients_read(struct snd_info_entry *entry, snd_seq_client_unlock(client); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */

/*---------------------------------------------------------------------------*/

diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c index d99f99d..288af56 100644 --- a/sound/core/seq/seq_device.c +++ b/sound/core/seq/seq_device.c @@ -72,7 +72,7 @@ static struct bus_type snd_seq_bus_type = { /* * proc interface -- just for compatibility */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static struct snd_info_entry *info_entry;

static int print_dev_info(struct device *dev, void *data) diff --git a/sound/core/seq/seq_info.h b/sound/core/seq/seq_info.h index 4892a7f..f8549f8 100644 --- a/sound/core/seq/seq_info.h +++ b/sound/core/seq/seq_info.h @@ -29,7 +29,7 @@ void snd_seq_info_timer_read(struct snd_info_entry *entry, struct snd_info_buffe void snd_seq_info_queues_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer);

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS int snd_seq_info_init( void ); int snd_seq_info_done( void ); #else diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c index a0cda38..7dfd0f4 100644 --- a/sound/core/seq/seq_queue.c +++ b/sound/core/seq/seq_queue.c @@ -753,7 +753,7 @@ int snd_seq_control_queue(struct snd_seq_event *ev, int atomic, int hop)

/*----------------------------------------------------------------*/

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* exported to seq_info.c */ void snd_seq_info_queues_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) @@ -787,5 +787,5 @@ void snd_seq_info_queues_read(struct snd_info_entry *entry, queuefree(q); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */

diff --git a/sound/core/seq/seq_timer.c b/sound/core/seq/seq_timer.c index 186f161..82b220c 100644 --- a/sound/core/seq/seq_timer.c +++ b/sound/core/seq/seq_timer.c @@ -422,7 +422,7 @@ snd_seq_tick_time_t snd_seq_timer_get_cur_tick(struct snd_seq_timer *tmr) }

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* exported to seq_info.c */ void snd_seq_info_timer_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) @@ -449,5 +449,5 @@ void snd_seq_info_timer_read(struct snd_info_entry *entry, queuefree(q); } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */

diff --git a/sound/core/sound.c b/sound/core/sound.c index e5d37bd..175f9e4 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -330,7 +330,7 @@ int snd_unregister_device(struct device *dev) } EXPORT_SYMBOL(snd_unregister_device);

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * INFO PART */ @@ -391,7 +391,7 @@ int __init snd_minor_info_init(void) entry->c.text.read = snd_minor_info_read; return snd_info_register(entry); /* freed in error path */ } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */

/* * INIT PART diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c index 86e2d91..0ca9d72 100644 --- a/sound/core/sound_oss.c +++ b/sound/core/sound_oss.c @@ -207,7 +207,7 @@ EXPORT_SYMBOL(snd_unregister_oss_device); * INFO PART */

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static const char *snd_oss_device_type_name(int type) { switch (type) { @@ -259,4 +259,4 @@ int __init snd_minor_info_oss_init(void) entry->c.text.read = snd_minor_info_oss_read; return snd_info_register(entry); /* freed in error path */ } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */ diff --git a/sound/core/timer.c b/sound/core/timer.c index a9a1a04..31f40f0 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1034,7 +1034,7 @@ static int snd_timer_register_system(void) return snd_timer_global_register(timer); }

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS /* * Info interface */ @@ -1104,7 +1104,7 @@ static void __exit snd_timer_proc_done(void) { snd_info_free_entry(snd_timer_proc_entry); } -#else /* !CONFIG_PROC_FS */ +#else /* !CONFIG_SND_PROC_FS */ #define snd_timer_proc_init() #define snd_timer_proc_done() #endif diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile index 9c259ce..2732890 100644 --- a/sound/pci/hda/Makefile +++ b/sound/pci/hda/Makefile @@ -5,7 +5,8 @@ snd-hda-intel-$(CONFIG_SND_HDA_I915) += hda_i915.o

snd-hda-codec-y := hda_bind.o hda_codec.o hda_jack.o hda_auto_parser.o hda_sysfs.o snd-hda-codec-y += hda_controller.o -snd-hda-codec-$(CONFIG_PROC_FS) += hda_proc.o +snd-hda-codec-$(CONFIG_SND_PROC_FS) += hda_proc.o + snd-hda-codec-$(CONFIG_SND_HDA_HWDEP) += hda_hwdep.o snd-hda-codec-$(CONFIG_SND_HDA_INPUT_BEEP) += hda_beep.o

diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 0e6d753..c746cd9 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -448,7 +448,7 @@ void snd_hdmi_show_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e) hdmi_show_short_audio_desc(codec, e->sad + i); }

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS

static void hdmi_print_sad_info(int i, struct cea_sad *a, struct snd_info_buffer *buffer) @@ -586,7 +586,7 @@ void snd_hdmi_write_eld_info(struct hdmi_eld *eld, } } } -#endif /* CONFIG_PROC_FS */ +#endif /* CONFIG_SND_PROC_FS */

/* update PCM info based on ELD */ void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e, diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index 3b567f4..be7c66d 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -330,7 +330,7 @@ int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, /* * generic proc interface */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS int snd_hda_codec_proc_new(struct hda_codec *codec); #else static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; } @@ -777,7 +777,7 @@ int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid, unsigned char *buf, int *eld_size, bool rev3_or_later);

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS void snd_hdmi_print_eld_info(struct hdmi_eld *eld, struct snd_info_buffer *buffer); void snd_hdmi_write_eld_info(struct hdmi_eld *eld, diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index ef8a562..73c20c0 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -86,7 +86,7 @@ struct hdmi_spec_per_pin { bool non_pcm; bool chmap_set; /* channel-map override by ALSA API? */ unsigned char chmap[8]; /* ALSA API channel-map */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS struct snd_info_entry *proc_entry; #endif }; @@ -548,7 +548,7 @@ static void hdmi_set_channel_count(struct hda_codec *codec, * ELD proc files */

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static void print_eld_info(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 43c99ce..054026a 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -4337,7 +4337,7 @@ static void stac_shutup(struct hda_codec *codec)

#define stac_free snd_hda_gen_free

-#ifdef CONFIG_PROC_FS +#ifdef CONFIG_SND_PROC_FS static void stac92hd_proc_hook(struct snd_info_buffer *buffer, struct hda_codec *codec, hda_nid_t nid) {

-- 1.9.1

Enrico Weigelt, metux IT consult

3:56 p.m.

New subject: [alsa-devel] [PATCH RESEND v3 2/2] ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS

Am 27.05.2015 um 13:45 schrieb Jie Yang:

...

We may disable proc fs only for sound part, to reduce ALSA memory footprint. So add CONFIG_SND_PROC_FS and replace the old CONFIG_PROC_FSs in alsa code.

With sound proc fs disabled, we can save about 9KB memory size on X86_64 platform.

For consistency, both patches should be squashed into one, IMHO.

cu -- Enrico Weigelt, metux IT consult +49-151-27565287 MELAG Medizintechnik oHG Sitz Berlin Registergericht AG Charlottenburg HRA 21333 B

Wichtiger Hinweis: Diese Nachricht kann vertrauliche oder nur für einen begrenzten Personenkreis bestimmte Informationen enthalten. Sie ist ausschließlich für denjenigen bestimmt, an den sie gerichtet worden ist. Wenn Sie nicht der Adressat dieser E-Mail sind, dürfen Sie diese nicht kopieren, weiterleiten, weitergeben oder sie ganz oder teilweise in irgendeiner Weise nutzen. Sollten Sie diese E-Mail irrtümlich erhalten haben, so benachrichtigen Sie bitte den Absender, indem Sie auf diese Nachricht antworten. Bitte löschen Sie in diesem Fall diese Nachricht und alle Anhänge, ohne eine Kopie zu behalten. Important Notice: This message may contain confidential or privileged information. It is intended only for the person it was addressed to. If you are not the intended recipient of this email you may not copy, forward, disclose or otherwise use it or any part of it in any form whatsoever. If you received this email in error please notify the sender by replying and delete this message and any attachments without retaining a copy.

Mark Brown

6:32 p.m.

New subject: [alsa-devel] [PATCH RESEND v3 2/2] ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS

On Wed, May 27, 2015 at 07:45:45PM +0800, Jie Yang wrote:

...

We may disable proc fs only for sound part, to reduce ALSA memory footprint. So add CONFIG_SND_PROC_FS and replace the old CONFIG_PROC_FSs in alsa code.

Reviwed-by: Mark Brown broonie@kernel.org

Takashi Iwai

9:26 p.m.

New subject: [alsa-devel] [PATCH RESEND v3 0/2] reducing memory footprint of ALSA

At Wed, 27 May 2015 19:45:43 +0800, Jie Yang wrote:

...

We are planning to work on reducing memory footprint of ALSA, targeting on small memory embedded devices(e.g. IoT), this series focuses on disabling procfs, hw/sw params refinement, mmap, dpcm, dapm, compressed API, compat code APIs...

We plan to enable those reducing items only for EXPERT, and add knobs in sound/core/Kconfig.

These first two patches is a start, adding SND_PROC_FS to config disable/enable ALSA proc FS, this disabling can save about 9KB code size on x86_64 platform.

Changes in v3:

drop SND_REDUCED_MEMORY_FOOTPRINT and make configuration

available only for EXPERT; 2. move the configure into sound/core/Kconfig; 3. Add missing Signed-off-by for PATCH 2/2.

Changes in v2:

Prompt "Sound Proc FS Support" appears only when

SND_REDUCED_MEMORY_FOOTPRINT is true.

Jie Yang (2): ALSA: Kconfig: add config item SND_PROC_FS for expert ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS

Applied both patches. Thanks.

Takashi

...

include/sound/info.h | 8 ++++---- sound/core/Kconfig | 11 ++++++++++- sound/core/Makefile | 2 +- sound/core/hwdep.c | 6 +++--- sound/core/init.c | 8 ++++---- sound/core/oss/mixer_oss.c | 6 +++--- sound/core/pcm.c | 6 +++--- sound/core/seq/oss/seq_oss.c | 6 +++--- sound/core/seq/oss/seq_oss_init.c | 5 ++--- sound/core/seq/oss/seq_oss_midi.c | 4 ++-- sound/core/seq/oss/seq_oss_readq.c | 4 ++-- sound/core/seq/oss/seq_oss_synth.c | 4 ++-- sound/core/seq/seq_clientmgr.c | 4 ++-- sound/core/seq/seq_device.c | 2 +- sound/core/seq/seq_info.h | 2 +- sound/core/seq/seq_queue.c | 4 ++-- sound/core/seq/seq_timer.c | 4 ++-- sound/core/sound.c | 4 ++-- sound/core/sound_oss.c | 4 ++-- sound/core/timer.c | 4 ++-- sound/pci/hda/Makefile | 3 ++- sound/pci/hda/hda_eld.c | 4 ++-- sound/pci/hda/hda_local.h | 4 ++-- sound/pci/hda/patch_hdmi.c | 4 ++-- sound/pci/hda/patch_sigmatel.c | 2 +- 25 files changed, 62 insertions(+), 53 deletions(-)

-- 1.9.1

3497

Age (days ago)

3497

Last active (days ago)

List overview

Download

6 comments

4 participants

tags (0)

participants (4)

Enrico Weigelt, metux IT consult
Jie Yang
Mark Brown
Takashi Iwai