Re: INFO: task hung in rtnetlink_rcv_msg

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On Mon, 25 Feb 2019 08:55:40 -0800
Joe Perches <joe@xxxxxxxxxxx> wrote:

> On Mon, 2019-02-25 at 09:39 +0100, Jesper Dangaard Brouer wrote:
> > On Sat, 23 Feb 2019 01:47:00 +0100
> > Daniel Borkmann <daniel@xxxxxxxxxxxxx> wrote:
> >   
> > > On 02/22/2019 10:45 PM, Jakub Kicinski wrote:  
> > > > On Fri, 22 Feb 2019 12:14:57 -0800, Joe Perches wrote:    
> > > > > On Fri, 2019-02-22 at 12:01 -0800, Jakub Kicinski wrote:    
> > > > > > Hi!
> > > > > > 
> > > > > > Seems like something funny is going on with get_maintainer.pl since XDP
> > > > > > entry got added.  We seem to have been CCed on:      
> > > > > 
> > > > > I suggest removing the MAINTAINERS line with
> > > > > 
> > > > > 	K:	xdp
> > > > > 
> > > > > as xdp is a pretty generic file/patch content
> > > > > regex match for the K: type
> > > > > 
> > > > > $ git grep --name-only xdp | wc -l
> > > > > 236  
> > 
> > I'm unsure how K: works, but you grep definitely selects some wrong files.
> > 
> > I tried with "xdp_":
> >  git grep --name-only xdp_
> > 
> > That does catch all the driver that have XDP support, which is the
> > point of the exercise (to catch drivers).
> > 
> > It does contain a couple of false-positives:
> >   drivers/net/ethernet/neterion/vxge/vxge-traffic.c
> >   drivers/thunderbolt/tb_msgs.h
> >   drivers/thunderbolt/xdomain.c
> >   sound/soc/codecs/rt5670.c
> > 
> > Via the pattern '[^a-z]xdp_' I'm only left with the thunderbolt
> > false-positive, as it have a data struct's called tb_xdp_*.  
> 
> Then it's probably better to use
> 
> K:	\Wxdp_
> 
> and if XDP_ is also to be matched, maybe
> 
> K:	(?i:\Wxdp_)
> 

The last one seems to be the best at matching the relevant files :-)

-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Principal Kernel Engineer at Red Hat
  LinkedIn: http://www.linkedin.com/in/brouer



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