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
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(-)