Re: [PATCH 2.5] fixes for airo.c

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Wed Jul 23 2003 - 13:03:24 EST


On Mer, 2003-07-23 at 18:56, Daniel Ritz wrote:
> > You cannot use down() in xmit, as it may be called in interrupt context. I
> > know it slows things down, but that's the only way I figured out of
> > handling a transmission while the card is processing a long command.
>
> hu? no. you can do a down() as xmit is never called from interrupt context. and
> the dev->hard_start_xmit() calls are serialized with the dev->xmit_lock. the
> serialization is broken by the schedule_work() thing.

If you are about to start a long command why not mark the device busy
for transmit before starting ?
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