linux-kernel - Re: [PATCH 2/7] USB: serial: add generic wait_until

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Message-ID: <20130508154855.GA14438@localhost>
Date:	Wed, 8 May 2013 17:48:55 +0200
From:	Johan Hovold <jhovold@...il.com>
To:	Stas Sergeev <stsp@...t.ru>
Cc:	Johan Hovold <jhovold@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Peter Hurley <peter@...leysoftware.com>,
	Jarkko Huijts <jarkko.huijts@...il.com>,
	Alan Cox <alan@...ux.intel.com>, linux-usb@...r.kernel.org,
	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	Caylan Van Larson <i@...lan.net>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [PATCH 2/7] USB: serial: add generic wait_until_sent
 implementation

On Wed, May 08, 2013 at 06:25:13PM +0400, Stas Sergeev wrote:
> 05.05.2013 22:32, Johan Hovold пишет:
> > Add generic wait_until_sent implementation which polls for empty
> > hardware buffers using the new port-operation tx_empty.
> >
> > The generic implementation will be used for all sub-drivers that
> > implement tx_empty but does not define wait_until_sent.
> Hi Johan.
> 
> The customer reports an Oops below.
> Does that ring any bells?
> Well, there is only one division in usb_serial_generic_wait_until_sent(),
> anyway. :)

Yes, you're right I forgot about B0. I'll send a v2.

Thanks for catching this,
Johan
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