From: "David S. Miller" <davem@redhat.com>
To: Peter Chubb <peterc@gelato.unsw.edu.au>
Cc: linux-ia64@vger.kernel.org, linux-net@vger.kernel.org,
netdev@oss.sgi.com
Subject: Re: Making the NS83820 usable on IA64
Date: Tue, 16 Mar 2004 21:49:12 -0800 [thread overview]
Message-ID: <20040316214912.32b4c530.davem@redhat.com> (raw)
In-Reply-To: <16471.52400.222262.824746@wombat.disy.cse.unsw.edu.au>
On Wed, 17 Mar 2004 14:57:36 +1100
Peter Chubb <peterc@gelato.unsw.edu.au> wrote:
> The idea is to tell gcc that the IP header is 2-byte aligned,
> so it can generate the right code to access it. Otherwise, it tries
> to do a 4-byte load when trying to extract the header length bitfield,
> which traps. As far as I read the C standard, gcc can do almost
> whatever it wants as regarding the alignment and underlying storage
> size of a bitfield, so it's free to assume 32-bit alignment if it
> wants.
This makes every piece of code only able to assume 2-byte
alignment. I don't think this will get accepted :)
next prev parent reply other threads:[~2004-03-17 5:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-17 3:57 Making the NS83820 usable on IA64 Peter Chubb
[not found] ` <4057D1B8.9090508@pobox.com>
2004-03-17 4:33 ` Peter Chubb
2004-03-17 5:49 ` David S. Miller [this message]
2004-03-17 8:54 ` Peter Chubb
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20040316214912.32b4c530.davem@redhat.com \
--to=davem@redhat.com \
--cc=linux-ia64@vger.kernel.org \
--cc=linux-net@vger.kernel.org \
--cc=netdev@oss.sgi.com \
--cc=peterc@gelato.unsw.edu.au \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).