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From: Oliver Neukum <oliver@neukum.org>
To: stefani@seibold.net
Cc: linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org,
	linux-usb@vger.kernel.org
Subject: Re: [PATCH 03/13] remove dead code
Date: Thu, 7 Jun 2012 17:04:39 +0200	[thread overview]
Message-ID: <201206071704.39688.oliver@neukum.org> (raw)
In-Reply-To: <1339057243-10029-4-git-send-email-stefani@seibold.net>

Am Donnerstag, 7. Juni 2012, 10:20:33 schrieb stefani@seibold.net:
> From: Stefani Seibold <stefani@seibold.net>
> 
> All code which use processed_urb can be eliminated.

If you eliminate it, how do you balance the completion?

	Regards
		Oliver
> 
> Signed-off-by: Stefani Seibold <stefani@seibold.net>
> ---
>  drivers/usb/usb-skeleton.c |   12 ------------
>  1 files changed, 0 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c
> index 7385aa8..92cdfca 100644
> --- a/drivers/usb/usb-skeleton.c
> +++ b/drivers/usb/usb-skeleton.c
> @@ -59,7 +59,6 @@ struct usb_skel {
>  	__u8			bulk_out_endpointAddr;	/* the address of the bulk out endpoint */
>  	int			errors;			/* the last request tanked */
>  	bool			ongoing_read;		/* a read is going on */
> -	bool			processed_urb;		/* indicates we haven't processed the urb */
>  	spinlock_t		err_lock;		/* lock for errors */
>  	struct kref		kref;
>  	struct mutex		io_mutex;		/* synchronize I/O with disconnect */
> @@ -256,17 +255,6 @@ retry:
>  		 * we must finish now
>  		 */
>  		dev->bulk_in_copied = 0;
> -		dev->processed_urb = true;
> -	}
> -
> -	if (!dev->processed_urb) {
> -		/*
> -		 * the URB hasn't been processed
> -		 * do it now
> -		 */
> -		wait_for_completion(&dev->bulk_in_completion);
> -		dev->bulk_in_copied = 0;
> -		dev->processed_urb = true;
>  	}
>  
>  	/* errors must be reported */
> -- 
> 1.7.8.6
> 
> --
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> 



  reply	other threads:[~2012-06-07 15:07 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-07  8:20 [PATCH] fix usb skeleton driver stefani
2012-06-07  8:20 ` [PATCH 01/13] fix wrong label in skel_open stefani
2012-06-13  1:03   ` Greg KH
2012-06-07  8:20 ` [PATCH 02/13] code cleanup stefani
2012-06-07  9:06   ` Bjørn Mork
2012-06-07  9:21     ` Stefani Seibold
2012-06-07 10:49       ` Bjørn Mork
2012-06-13  1:03         ` Greg KH
2012-06-13  1:02   ` Greg KH
2012-06-13 18:00     ` Stefani Seibold
2012-06-07  8:20 ` [PATCH 03/13] remove dead code stefani
2012-06-07 15:04   ` Oliver Neukum [this message]
2012-06-07 19:40     ` Stefani Seibold
2012-06-07  8:20 ` [PATCH 04/13] remove unneeded forward declaration stefani
2012-06-07  8:20 ` [PATCH 05/13] remove pr_err() noise in skel_open stefani
2012-06-07  8:20 ` [PATCH 06/13] Handle a non blocking read without blocking stefani
2012-06-07  8:20 ` [PATCH 07/13] fix flush function stefani
2012-06-07  8:20 ` [PATCH 08/13] add fsync function stefani
2012-06-07  8:20 ` [PATCH 09/13] remove unneeded lock in skel_open stefani
2012-06-07  8:20 ` [PATCH 10/13] fix race in skel_write stefani
2012-06-07  8:20 ` [PATCH 11/13] fix kref usage in skel_open stefani
2012-06-07  8:20 ` [PATCH 12/13] Introduce single user mode stefani
2012-06-13  1:05   ` Greg KH
2012-06-07  8:20 ` [PATCH 13/13] Bump version number and add aditional author stefani
2012-06-07  9:09   ` Bjørn Mork
2012-06-13  1:00     ` Greg KH

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