linux-kernel - Re: [PATCH] sound/core/seq: remove useless function

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Date:   Wed, 04 Nov 2020 09:16:14 +0100
From:   Takashi Iwai <tiwai@...e.de>
To:     Yu Hao <yuhaobehappy@...il.com>
Cc:     perex@...ex.cz, tiwai@...e.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sound/core/seq: remove useless function

On Tue, 03 Nov 2020 23:33:35 +0100,
Yu Hao wrote:
> 
> The function snd_seq_queue_client_termination() is only called from
> the function seq_free_client1(). The function seq_free_client1() calls
> the function snd_seq_queue_client_leave() and the function
> snd_seq_queue_client_termination() together. Because the function
> snd_seq_queue_client_leave() does all things, so the function
> snd_seq_queue_client_termination() is a useless function.

How poetic, rhymes awfully well :)

> Signed-off-by: Yu Hao <yuhaobehappy@...il.com>

Applied now.  Thanks!


Takashi

>  sound/core/seq/seq_clientmgr.c |  1 -
>  sound/core/seq/seq_queue.c     | 27 ---------------------------
>  sound/core/seq/seq_queue.h     |  3 ---
>  3 files changed, 31 deletions(-)
> 
> diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
> index cc93157fa950..f9f2fea58b32 100644
> --- a/sound/core/seq/seq_clientmgr.c
> +++ b/sound/core/seq/seq_clientmgr.c
> @@ -279,7 +279,6 @@ static int seq_free_client1(struct snd_seq_client *client)
>  	snd_seq_delete_all_ports(client);
>  	snd_seq_queue_client_leave(client->number);
>  	snd_use_lock_sync(&client->use_lock);
> -	snd_seq_queue_client_termination(client->number);
>  	if (client->pool)
>  		snd_seq_pool_delete(&client->pool);
>  	spin_lock_irq(&clients_lock);
> diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
> index 71a6ea62c3be..13cfc2d47fa7 100644
> --- a/sound/core/seq/seq_queue.c
> +++ b/sound/core/seq/seq_queue.c
> @@ -537,33 +537,6 @@ int snd_seq_queue_is_used(int queueid, int client)
>  
>  /*----------------------------------------------------------------*/
>  
> -/* notification that client has left the system -
> - * stop the timer on all queues owned by this client
> - */
> -void snd_seq_queue_client_termination(int client)
> -{
> -	unsigned long flags;
> -	int i;
> -	struct snd_seq_queue *q;
> -	bool matched;
> -
> -	for (i = 0; i < SNDRV_SEQ_MAX_QUEUES; i++) {
> -		if ((q = queueptr(i)) == NULL)
> -			continue;
> -		spin_lock_irqsave(&q->owner_lock, flags);
> -		matched = (q->owner == client);
> -		if (matched)
> -			q->klocked = 1;
> -		spin_unlock_irqrestore(&q->owner_lock, flags);
> -		if (matched) {
> -			if (q->timer->running)
> -				snd_seq_timer_stop(q->timer);
> -			snd_seq_timer_reset(q->timer);
> -		}
> -		queuefree(q);
> -	}
> -}
> -
>  /* final stage notification -
>   * remove cells for no longer exist client (for non-owned queue)
>   * or delete this queue (for owned queue)
> diff --git a/sound/core/seq/seq_queue.h b/sound/core/seq/seq_queue.h
> index 9254c8dbe5e3..1c3a8d3254d9 100644
> --- a/sound/core/seq/seq_queue.h
> +++ b/sound/core/seq/seq_queue.h
> @@ -59,9 +59,6 @@ struct snd_seq_queue *snd_seq_queue_alloc(int client, int locked, unsigned int f
>  /* delete queue (destructor) */
>  int snd_seq_queue_delete(int client, int queueid);
>  
> -/* notification that client has left the system */
> -void snd_seq_queue_client_termination(int client);
> -
>  /* final stage */
>  void snd_seq_queue_client_leave(int client);
>  
> -- 
> 2.17.1
>