From: Yuval Shaia <yuval.shaia-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
To: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: benve-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org,
dgoodell-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org,
dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
monis-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org,
davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v1] {net,IB}/{rxe,usnic}: Utilize generic mac to eui32 function
Date: Mon, 6 Mar 2017 13:54:02 +0200 [thread overview]
Message-ID: <20170306115401.GA5230@yuval-lap> (raw)
In-Reply-To: <20170306051529.GN14379-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
> > > > >
> > > > > /*
> > > > > * The zSeries OSA network cards can be shared among various
> > > > > @@ -128,11 +137,8 @@ static inline int addrconf_ifid_eui48(u8 *eui, struct net_device *dev)
> > > > > if (dev->dev_id) {
> > > > > eui[3] = (dev->dev_id >> 8) & 0xFF;
> > > > > eui[4] = dev->dev_id & 0xFF;
> > > > > - } else {
> > > > > - eui[3] = 0xFF;
> > > > > - eui[4] = 0xFE;
> > > > > - eui[0] ^= 2;
> > > >
> > > > Sorry, but NAK.
> > > > You missed the assignment below. In original code it WASN'T for dev->dev_id != NULL, and now it is.
> > >
> > > s/below/above
> >
> > I'm sorry but which assignment is missing? Default values for 0, 3 and 4
> > are set in genaddrconf_ifid_eui48 then override here in case dev->dev_id is
> > set.
>
> Not really, in original code of addrconf_ifid_eui48(), the eui[0] is set
> conditionally to be "eui[0] ^= 2" or stays without change. In your
> proposed code, eui[0] will be always changed to be "eui[0] ^= 2".
Thanks!
I was confused by the "missing", you should have used "extra assignment" or
even "wrong extra assignment" in your first comment.
Appreciate if you can review v2 which will reset eui[0] to default if
dev_id is used.
>
>
> >
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prev parent reply other threads:[~2017-03-06 11:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-03 20:49 [PATCH v1] {net,IB}/{rxe,usnic}: Utilize generic mac to eui32 function Yuval Shaia
[not found] ` <1488574145-27179-1-git-send-email-yuval.shaia-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2017-03-05 7:46 ` Leon Romanovsky
[not found] ` <20170305074650.GH14379-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-03-05 8:12 ` Leon Romanovsky
[not found] ` <20170305081244.GJ14379-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-03-05 19:49 ` Yuval Shaia
2017-03-06 5:15 ` Leon Romanovsky
[not found] ` <20170306051529.GN14379-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-03-06 11:54 ` Yuval Shaia [this message]
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