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author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-03-14 11:10:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-03-14 11:10:43 -0700 |
commit | fe46a7dd189e25604716c03576d05ac8a5209743 (patch) | |
tree | de7572a9f41bb91e570dce1053283e56d1efdd94 /sound/core/seq/seq_ports.c | |
parent | 705c1da8fa4816fb0159b5602fef1df5946a3ee2 (diff) | |
parent | a39d51ff1f52cd0b6fe7d379ac93bd8b4237d1b7 (diff) | |
download | linux-stable-fe46a7dd189e25604716c03576d05ac8a5209743.tar.gz linux-stable-fe46a7dd189e25604716c03576d05ac8a5209743.tar.bz2 linux-stable-fe46a7dd189e25604716c03576d05ac8a5209743.zip |
Merge tag 'sound-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"This was a relatively calm development cycle. Most of changes are
rather small device-specific fixes and enhancements. The only
significant changes in ALSA core are code refactoring with the recent
cleanup infrastructure, which should bring no functionality changes.
Some highlights below:
Core:
- Lots of cleanups in ALSA core code with automatic kfree cleanup and
locking guard macros
- New ALSA core kunit test
ASoC:
- SoundWire support for AMD ACP 6.3 systems
- Support for reporting version information for AVS firmware
- Support DSPless mode for Intel Soundwire systems
- Support for configuring CS35L56 amplifiers using EFI calibration
data
- Log which component is being operated on as part of power
management trace events.
- Support for Microchip SAM9x7, NXP i.MX95 and Qualcomm WCD939x
HD- and USB-audio:
- More Cirrus HD-audio codec support
- TAS2781 HD-audio codec fixes
- Scarlett2 mixer fixes
Others:
- Enhancement of virtio driver for audio control supports
- Cleanups of legacy PM code with new macros
- Firewire sound updates"
* tag 'sound-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (307 commits)
ALSA: usb-audio: Stop parsing channels bits when all channels are found.
ALSA: hda/tas2781: remove unnecessary runtime_pm calls
ALSA: hda/realtek - ALC236 fix volume mute & mic mute LED on some HP models
ALSA: aaci: Delete unused variable in aaci_do_suspend
ALSA: scarlett2: Fix Scarlett 4th Gen input gain range again
ALSA: scarlett2: Fix Scarlett 4th Gen input gain range
ALSA: scarlett2: Fix Scarlett 4th Gen autogain status values
ALSA: scarlett2: Fix Scarlett 4th Gen 4i4 low-voltage detection
ALSA: hda/tas2781: restore power state after system_resume
ALSA: hda/tas2781: do not call pm_runtime_force_* in system_resume/suspend
ALSA: hda/tas2781: do not reset cur_* values in runtime_suspend
ALSA: hda/tas2781: add lock to system_suspend
ALSA: hda/tas2781: use dev_dbg in system_resume
ALSA: hda/realtek: fix ALC285 issues on HP Envy x360 laptops
platform/x86: serial-multi-instantiate: Add support for CS35L54 and CS35L57
ALSA: hda: cs35l56: Add support for CS35L54 and CS35L57
ASoC: cs35l56: Add support for CS35L54 and CS35L57
ASoC: Intel: catpt: Carefully use PCI bitwise constants
ALSA: hda: hda_component: Include sound/hda_codec.h
ALSA: hda: hda_component: Add missing #include guards
...
Diffstat (limited to 'sound/core/seq/seq_ports.c')
-rw-r--r-- | sound/core/seq/seq_ports.c | 114 |
1 files changed, 49 insertions, 65 deletions
diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c index f3f14ff0f80f..ca631ca4f2c6 100644 --- a/sound/core/seq/seq_ports.c +++ b/sound/core/seq/seq_ports.c @@ -48,17 +48,15 @@ struct snd_seq_client_port *snd_seq_port_use_ptr(struct snd_seq_client *client, if (client == NULL) return NULL; - read_lock(&client->ports_lock); + guard(read_lock)(&client->ports_lock); list_for_each_entry(port, &client->ports_list_head, list) { if (port->addr.port == num) { if (port->closing) break; /* deleting now */ snd_use_lock_use(&port->use_lock); - read_unlock(&client->ports_lock); return port; } } - read_unlock(&client->ports_lock); return NULL; /* not found */ } @@ -73,7 +71,7 @@ struct snd_seq_client_port *snd_seq_port_query_nearest(struct snd_seq_client *cl num = pinfo->addr.port; found = NULL; - read_lock(&client->ports_lock); + guard(read_lock)(&client->ports_lock); list_for_each_entry(port, &client->ports_list_head, list) { if ((port->capability & SNDRV_SEQ_PORT_CAP_INACTIVE) && !check_inactive) @@ -93,7 +91,6 @@ struct snd_seq_client_port *snd_seq_port_query_nearest(struct snd_seq_client *cl else snd_use_lock_use(&found->use_lock); } - read_unlock(&client->ports_lock); return found; } @@ -145,13 +142,12 @@ int snd_seq_create_port(struct snd_seq_client *client, int port, snd_use_lock_use(&new_port->use_lock); num = max(port, 0); - mutex_lock(&client->ports_mutex); - write_lock_irq(&client->ports_lock); + guard(mutex)(&client->ports_mutex); + guard(write_lock_irq)(&client->ports_lock); list_for_each_entry(p, &client->ports_list_head, list) { if (p->addr.port == port) { kfree(new_port); - num = -EBUSY; - goto unlock; + return -EBUSY; } if (p->addr.port > num) break; @@ -164,9 +160,6 @@ int snd_seq_create_port(struct snd_seq_client *client, int port, new_port->addr.port = num; /* store the port number in the port */ sprintf(new_port->name, "port-%d", num); *port_ret = new_port; - unlock: - write_unlock_irq(&client->ports_lock); - mutex_unlock(&client->ports_mutex); return num; } @@ -281,19 +274,18 @@ int snd_seq_delete_port(struct snd_seq_client *client, int port) { struct snd_seq_client_port *found = NULL, *p; - mutex_lock(&client->ports_mutex); - write_lock_irq(&client->ports_lock); - list_for_each_entry(p, &client->ports_list_head, list) { - if (p->addr.port == port) { - /* ok found. delete from the list at first */ - list_del(&p->list); - client->num_ports--; - found = p; - break; + scoped_guard(mutex, &client->ports_mutex) { + guard(write_lock_irq)(&client->ports_lock); + list_for_each_entry(p, &client->ports_list_head, list) { + if (p->addr.port == port) { + /* ok found. delete from the list at first */ + list_del(&p->list); + client->num_ports--; + found = p; + break; + } } } - write_unlock_irq(&client->ports_lock); - mutex_unlock(&client->ports_mutex); if (found) return port_delete(client, found); else @@ -309,16 +301,16 @@ int snd_seq_delete_all_ports(struct snd_seq_client *client) /* move the port list to deleted_list, and * clear the port list in the client data. */ - mutex_lock(&client->ports_mutex); - write_lock_irq(&client->ports_lock); - if (! list_empty(&client->ports_list_head)) { - list_add(&deleted_list, &client->ports_list_head); - list_del_init(&client->ports_list_head); - } else { - INIT_LIST_HEAD(&deleted_list); + guard(mutex)(&client->ports_mutex); + scoped_guard(write_lock_irq, &client->ports_lock) { + if (!list_empty(&client->ports_list_head)) { + list_add(&deleted_list, &client->ports_list_head); + list_del_init(&client->ports_list_head); + } else { + INIT_LIST_HEAD(&deleted_list); + } + client->num_ports = 0; } - client->num_ports = 0; - write_unlock_irq(&client->ports_lock); /* remove each port in deleted_list */ list_for_each_entry_safe(port, tmp, &deleted_list, list) { @@ -326,7 +318,6 @@ int snd_seq_delete_all_ports(struct snd_seq_client *client) snd_seq_system_client_ev_port_exit(port->addr.client, port->addr.port); port_delete(client, port); } - mutex_unlock(&client->ports_mutex); return 0; } @@ -506,42 +497,37 @@ static int check_and_subscribe_port(struct snd_seq_client *client, int err; grp = is_src ? &port->c_src : &port->c_dest; - err = -EBUSY; - down_write(&grp->list_mutex); + guard(rwsem_write)(&grp->list_mutex); if (exclusive) { if (!list_empty(&grp->list_head)) - goto __error; + return -EBUSY; } else { if (grp->exclusive) - goto __error; + return -EBUSY; /* check whether already exists */ list_for_each(p, &grp->list_head) { s = get_subscriber(p, is_src); if (match_subs_info(&subs->info, &s->info)) - goto __error; + return -EBUSY; } } err = subscribe_port(client, port, grp, &subs->info, ack); if (err < 0) { grp->exclusive = 0; - goto __error; + return err; } /* add to list */ - write_lock_irq(&grp->list_lock); + guard(write_lock_irq)(&grp->list_lock); if (is_src) list_add_tail(&subs->src_list, &grp->list_head); else list_add_tail(&subs->dest_list, &grp->list_head); grp->exclusive = exclusive; atomic_inc(&subs->ref_count); - write_unlock_irq(&grp->list_lock); - err = 0; - __error: - up_write(&grp->list_mutex); - return err; + return 0; } /* called with grp->list_mutex held */ @@ -556,12 +542,12 @@ static void __delete_and_unsubscribe_port(struct snd_seq_client *client, grp = is_src ? &port->c_src : &port->c_dest; list = is_src ? &subs->src_list : &subs->dest_list; - write_lock_irq(&grp->list_lock); - empty = list_empty(list); - if (!empty) - list_del_init(list); - grp->exclusive = 0; - write_unlock_irq(&grp->list_lock); + scoped_guard(write_lock_irq, &grp->list_lock) { + empty = list_empty(list); + if (!empty) + list_del_init(list); + grp->exclusive = 0; + } if (!empty) unsubscribe_port(client, port, grp, &subs->info, ack); @@ -575,9 +561,8 @@ static void delete_and_unsubscribe_port(struct snd_seq_client *client, struct snd_seq_port_subs_info *grp; grp = is_src ? &port->c_src : &port->c_dest; - down_write(&grp->list_mutex); + guard(rwsem_write)(&grp->list_mutex); __delete_and_unsubscribe_port(client, port, subs, is_src, ack); - up_write(&grp->list_mutex); } /* connect two ports */ @@ -639,18 +624,18 @@ int snd_seq_port_disconnect(struct snd_seq_client *connector, /* always start from deleting the dest port for avoiding concurrent * deletions */ - down_write(&dest->list_mutex); - /* look for the connection */ - list_for_each_entry(subs, &dest->list_head, dest_list) { - if (match_subs_info(info, &subs->info)) { - __delete_and_unsubscribe_port(dest_client, dest_port, - subs, false, - connector->number != dest_client->number); - err = 0; - break; + scoped_guard(rwsem_write, &dest->list_mutex) { + /* look for the connection */ + list_for_each_entry(subs, &dest->list_head, dest_list) { + if (match_subs_info(info, &subs->info)) { + __delete_and_unsubscribe_port(dest_client, dest_port, + subs, false, + connector->number != dest_client->number); + err = 0; + break; + } } } - up_write(&dest->list_mutex); if (err < 0) return err; @@ -669,7 +654,7 @@ int snd_seq_port_get_subscription(struct snd_seq_port_subs_info *src_grp, struct snd_seq_subscribers *s; int err = -ENOENT; - down_read(&src_grp->list_mutex); + guard(rwsem_read)(&src_grp->list_mutex); list_for_each_entry(s, &src_grp->list_head, src_list) { if (addr_match(dest_addr, &s->info.dest)) { *subs = s->info; @@ -677,7 +662,6 @@ int snd_seq_port_get_subscription(struct snd_seq_port_subs_info *src_grp, break; } } - up_read(&src_grp->list_mutex); return err; } |