> -----Original Message-----
> From: Harini Katakam [mailto:hari...@xilinx.com]
> Sent: Tuesday, March 12, 2019 10:40 PM
> To: Paul Thomas <pthomas8...@gmail.com>
> Cc: Keller, Jacob E <jacob.e.kel...@intel.com>; netdev@vger.kernel.org
> Subject: Re: [PATCH] Check for SKBTX_HW_TSTAMP in macb driver
> 
> Hi Paul, Jake,
> On Wed, Mar 13, 2019 at 5:01 AM Paul Thomas <pthomas8...@gmail.com> wrote:
> >
> > On Tue, Mar 12, 2019 at 7:07 PM Keller, Jacob E
> > <jacob.e.kel...@intel.com> wrote:
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Paul Thomas [mailto:pthomas8...@gmail.com]
> > > > Sent: Tuesday, March 12, 2019 3:05 PM
> > > > To: Keller, Jacob E <jacob.e.kel...@intel.com>
> > > > Cc: netdev@vger.kernel.org
> > > > Subject: Re: [PATCH] Check for SKBTX_HW_TSTAMP in macb driver
> > > >
> > > > Hi Jake, thanks for all the help and for looking at this!
> > > >
> > > > >
> > > > > You have two conditionals inside, and I misread where you were doing 
> > > > > the
> checking
> > > > of the SKBTX_HW_TSTAMP flag.
> > > > >
> > > > > I would do the following :
> > > > >
> > > > > if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HWTSTAMP) &&
> > > > >     gem_ptp_do_txstamp(queue, skb, desc)) {
> 
> Thanks for looking into this. Shouldn't this be:
>  if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HWTSTAMP) &&
>       (gem_ptp_do_txstamp(queue, skb, desc) == 0)) {
> 
> Regards,
> Harini

Yes, you're correct, because gem_ptp_do_txstamp doesn't use the "non-zero = 
error code" pattern.

Thanks,
Jake

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