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SubjectRe: [PATCH net-2.6.24] remove bogus qeth type check
On Thu, 11 Oct 2007 17:24:54 -0700 (PDT)
David Miller <davem@davemloft.net> wrote:

> From: Stephen Hemminger <shemminger@linux-foundation.org>
> Date: Thu, 11 Oct 2007 13:24:58 -0700
>
> > Not sure why this crept in with hard-header-ops change.
> > Just kill it. Need to start doing cross-compiles for s390...
> >
> > Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
> >
> > --- a/drivers/s390/net/qeth_main.c 2007-10-10 08:26:48.000000000 -0700
> > +++ b/drivers/s390/net/qeth_main.c 2007-10-11 13:21:17.000000000 -0700
> > @@ -6581,9 +6581,6 @@ qeth_hard_header_parse(const struct sk_b
> > const struct qeth_card *card;
> > const struct ethhdr *eth;
> >
> > - if (dev->type != ARPHRD_IEEE802_TR)
> > - return 0;
> > -
> > card = qeth_get_card_from_dev(skb->dev);
> > if (card->options.layer2)
> > goto haveheader;
>
> Stephen this change is not right.
>
> In order to preserve the semantics that existed before your
> headerops changes, this test must be there. From the original
> qeth_main.c code:
>
> if (qeth_get_netdev_flags(card) & IFF_NOARP) {
> dev->rebuild_header = NULL;
> dev->hard_header = NULL;
> dev->header_cache_update = NULL;
> dev->hard_header_cache = NULL;
> }
> ...
> if (card->options.fake_ll &&
> (qeth_get_netdev_flags(card) & IFF_NOARP))
> dev->hard_header = qeth_fake_header;
> if (dev->type == ARPHRD_IEEE802_TR)
> dev->hard_header_parse = NULL;
> else
> dev->hard_header_parse = qeth_hard_header_parse;
>
> With the way you set up headerops in the driver, the only way
> to preserve the ARPHRD_IEEE802_TR guard, is to keep the
> test that you added to qeth_hard_header_parse().
>
> Andrew, please go back to using the first patch you wrote to
> fix the build, alternative resync with net-2.6.git as that
> version of the build fix is there too.

Dave, you right, that is why I put that test in. Should have kept
the staging tree and notes around longer.

--
Stephen Hemminger <shemminger@linux-foundation.org>
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