[dpdk-dev] [PATCH v2] vfio: use right index when tracking devices in a vfio group

Thomas Monjalon thomas at monjalon.net
Wed May 10 15:31:06 CEST 2017


10/05/2017 11:11, Burakov, Anatoly:
> From: Alejandro Lucero [mailto:alejandro.lucero at netronome.com]
> > 
> > Previous fix for properly handling devices from the same VFIO group
> > introduced another bug where the file descriptor of a kernel vfio group is
> > used as the index for tracking number of devices of a vfio group struct
> > handled by dpdk vfio code. Instead of the file descriptor itself, the vfio group
> > object that file descriptor is registered with has to be used.
> > 
> > This patch introduces specific functions for incrementing or decrementing
> > the device counter for a specific vfio group using the vfio file descriptor as a
> > parameter. Note the code is not optimized as the vfio group is found
> > sequentially going through the vfio group array but this should not be a
> > problem as this is not related to packet handling at all.
> > 
> > Fixes: a9c349e3a100 ("vfio: fix device unplug when several devices per
> > group")
> > 
> > Signed-off-by: Alejandro Lucero <alejandro.lucero at netronome.com>
> 
> Acked-by: Anatoly  Burakov <anatoly.burakov at intel.com>

Applied, thanks


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