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ALSA: seq: Treat snd_seq_client object directly in client drivers

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Introduce the new helpers, snd_seq_kernel_client_get() and _put() for
kernel client drivers to treat the snd_seq_client more directly.
This allows us to reduce the exported symbols and APIs at each time we
need to access some field in future.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-20-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2023-05-23 09:53:40 +02:00
parent ea46f79709
commit d0c8308fc5
2 changed files with 19 additions and 0 deletions
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15
sound/core/seq/seq_clientmgr.c
View File

@ -2390,6 +2390,21 @@ int snd_seq_kernel_client_write_poll(int clientid, struct file *file, poll_table
}
EXPORT_SYMBOL(snd_seq_kernel_client_write_poll);
/* get a sequencer client object; for internal use from a kernel client */
struct snd_seq_client *snd_seq_kernel_client_get(int id)
{
return snd_seq_client_use_ptr(id);
}
EXPORT_SYMBOL_GPL(snd_seq_kernel_client_get);
/* put a sequencer client object; for internal use from a kernel client */
void snd_seq_kernel_client_put(struct snd_seq_client *cptr)
{
if (cptr)
snd_seq_client_unlock(cptr);
}
EXPORT_SYMBOL_GPL(snd_seq_kernel_client_put);
/*---------------------------------------------------------------------------*/
#ifdef CONFIG_SND_PROC_FS

4
sound/core/seq/seq_clientmgr.h
View File

@ -88,4 +88,8 @@ void snd_seq_client_ioctl_unlock(int clientid);
extern int seq_client_load[15];
/* for internal use between kernel sequencer clients */
struct snd_seq_client *snd_seq_kernel_client_get(int client);
void snd_seq_kernel_client_put(struct snd_seq_client *cptr);
#endif