RE: [Intel-wired-lan] [PATCH v2] ice: Fix improper handling of refcount in ice_sriov_set_msix_vec_count()

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> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@xxxxxxxxxx> On Behalf Of Greg
> KH
> Sent: Saturday, September 7, 2024 4:13 PM
> To: Markus Elfring <Markus.Elfring@xxxxxx>
> Cc: Nguyen, Anthony L <anthony.l.nguyen@xxxxxxxxx>; netdev@xxxxxxxxxxxxxxx;
> Eric Dumazet <edumazet@xxxxxxxxxx>; stable@xxxxxxxxxxxxxxx; LKML <linux-
> kernel@xxxxxxxxxxxxxxx>; Gui-Dong Han <hanguidong02@xxxxxxxxxxx>; Jia-Ju
> Bai <baijiaju1990@xxxxxxxxx>; intel-wired-lan@xxxxxxxxxxxxxxxx; Simon Horman
> <horms@xxxxxxxxxx>; Kitszel, Przemyslaw <przemyslaw.kitszel@xxxxxxxxx>;
> Jakub Kicinski <kuba@xxxxxxxxxx>; Paolo Abeni <pabeni@xxxxxxxxxx>; David S.
> Miller <davem@xxxxxxxxxxxxx>
> Subject: Re: [Intel-wired-lan] [PATCH v2] ice: Fix improper handling of refcount in
> ice_sriov_set_msix_vec_count()
> 
> On Sat, Sep 07, 2024 at 02:40:10PM +0200, Markus Elfring wrote:
> > …
> > > +++ b/drivers/net/ethernet/intel/ice/ice_sriov.c
> > > @@ -1096,8 +1096,10 @@ int ice_sriov_set_msix_vec_count(struct pci_dev
> *vf_dev, int msix_vec_count)
> > >  		return -ENOENT;
> > >
> > >  	vsi = ice_get_vf_vsi(vf);
> > > -	if (!vsi)
> > > +	if (!vsi) {
> > > +		ice_put_vf(vf);
> > >  		return -ENOENT;
> > > +	}
> > >
> > >  	prev_msix = vf->num_msix;
> > >  	prev_queues = vf->num_vf_qs;
> > > @@ -1142,8 +1144,10 @@ int ice_sriov_set_msix_vec_count(struct pci_dev
> *vf_dev, int msix_vec_count)
> > >  	vf->num_msix = prev_msix;
> > >  	vf->num_vf_qs = prev_queues;
> > >  	vf->first_vector_idx = ice_sriov_get_irqs(pf, vf->num_msix);
> > > -	if (vf->first_vector_idx < 0)
> > > +	if (vf->first_vector_idx < 0) {
> > > +		ice_put_vf(vf);
> > >  		return -EINVAL;
> > > +	}
> > >
> > >  	if (needs_rebuild) {
> > >  		ice_vf_reconfig_vsi(vf);
> >
> > Would you like to collaborate with any goto chains according to the
> > desired completion of exception handling?
> >
> > Regards,
> > Markus
> >
> 
> 
> Hi,
> 
> This is the semi-friendly patch-bot of Greg Kroah-Hartman.
> 
> Markus, you seem to have sent a nonsensical or otherwise pointless review
> comment to a patch submission on a Linux kernel developer mailing list.  I
> strongly suggest that you not do this anymore.  Please do not bother developers
> who are actively working to produce patches and features with comments that, in
> the end, are a waste of time.
> 
> Patch submitter, please ignore Markus's suggestion; you do not need to follow it
> at all.  The person/bot/AI that sent it is being ignored by almost all Linux kernel
> maintainers for having a persistent pattern of behavior of producing distracting
> and pointless commentary, and inability to adapt to feedback.  Please feel free to
> also ignore emails from them.
> 
> thanks,
> 
> greg k-h's patch email bot


Tested-by: Rafal Romanowski <rafal.romanowski@xxxxxxxxx>







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