linux-kernel - Re: [net PATCH V3 1/3] octeontx2-pf: Fix PFC TX scheduler free

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Message-ID: <20230822200542.GA3523530@kernel.org>
Date:   Tue, 22 Aug 2023 22:05:42 +0200
From:   Simon Horman <horms@...nel.org>
To:     Paolo Abeni <pabeni@...hat.com>
Cc:     Suman Ghosh <sumang@...vell.com>, sgoutham@...vell.com,
        gakula@...vell.com, sbhatta@...vell.com, hkelam@...vell.com,
        lcherian@...vell.com, jerinj@...vell.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [net PATCH V3 1/3] octeontx2-pf: Fix PFC TX scheduler free

On Tue, Aug 22, 2023 at 12:58:04PM +0200, Paolo Abeni wrote:
> On Tue, 2023-08-22 at 09:11 +0200, Simon Horman wrote:
> > On Mon, Aug 21, 2023 at 10:55:14AM +0530, Suman Ghosh wrote:
> > > During PFC TX schedulers free, flag TXSCHQ_FREE_ALL was being set
> > > which caused free up all schedulers other than the PFC schedulers.
> > > This patch fixes that to free only the PFC Tx schedulers.
> > > 
> > > Fixes: 99c969a83d82 ("octeontx2-pf: Add egress PFC support")
> > > Signed-off-by: Suman Ghosh <sumang@...vell.com>
> > > ---
> > >  .../ethernet/marvell/octeontx2/nic/otx2_common.c  |  1 +
> > >  .../ethernet/marvell/octeontx2/nic/otx2_dcbnl.c   | 15 ++++-----------
> > >  2 files changed, 5 insertions(+), 11 deletions(-)
> > > 
> > > diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
> > > index 77c8f650f7ac..289371b8ce4f 100644
> > > --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
> > > +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
> > > @@ -804,6 +804,7 @@ void otx2_txschq_free_one(struct otx2_nic *pfvf, u16 lvl, u16 schq)
> > >  
> > >  	mutex_unlock(&pfvf->mbox.lock);
> > >  }
> > > +EXPORT_SYMBOL(otx2_txschq_free_one);
> > 
> > Hi Suman,
> > 
> > Given that the licence of both this file and otx2_dcbnl.c is GPLv2,
> > I wonder if EXPORT_SYMBOL_GPL would be more appropriate here.
> 
> AFAICS all the symbols exported by otx2_common use plain
> EXPORT_SYMBOL(). I think we can keep that for consistency in a -net
> patch.

Sure, no objection.

> In the long run it would be nice to move all of them to
> EXPORT_SYMBOL_GPL :)
> 
> Cheers,
> 
> Paolo
>