On Mon 22 Mar 2010 22:14, Song, Barry pondered:
> 
> >-----Original Message-----
> >From: Robin Getz [mailto:[email protected]] 
> >Sent: Tuesday, March 23, 2010 2:20 AM
> >To: [email protected]
> >Cc: [email protected]
> >Subject: Re: [Linux-kernel-commits] [8528] 
> >trunk/drivers/serial/bfin_5xx.c: bfin-serial: use nosync mode 
> >for dma_disable_irq in timer function
> >
> >On Mon 22 Mar 2010 05:37, [email protected] pondered:
> >> Revision
> >> 
> >8528<http://blackfin.uclinux.org/gf/project/linux-kernel/scmsvn
> >/?action=browse&path=/&view=rev&root=linux-kernel&revision=8528>
> >> Author
> >> bhsong<http://blackfin.uclinux.org/gf/user/bhsong/>
> >> Date
> >> 2010-03-22 05:37:11 -0400 (Mon, 22 Mar 2010)
> >> Log Message
> >> 
> >> bfin-serial: use nosync mode for dma_disable_irq  in timer function
> >
> >Why? Does this fix a bug?
> 
> It doesn't fix any existing bug. Just call an atomic version in softirq
> context to avoid possible deadlock.

Then that is what belongs in the changelog....

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