From: Michael Buesch <mb@bu3sch.de>
To: linux-wireless@vger.kernel.org,
Shaddy Baddah <shaddy_baddah@hotmail.com>
Subject: Re: zd1211rw (2.6.26 sparc64): unaligned access (zd_mac_rx)
Date: Fri, 28 Nov 2008 23:44:29 +0100 [thread overview]
Message-ID: <200811282344.29293.mb@bu3sch.de> (raw)
In-Reply-To: <BAY104-DAV671C2C6DE8B2A05AD785E99040@phx.gbl>
On Friday 28 November 2008 06:34:34 Shaddy Baddah wrote:
> case the same simple function replacement would not be OK. But I saw
> several places where memcmp() is preferred to compare_ether_addr(),
> which I assume indicates that mac80211 does not expect alignment of
> 80211 packets passed to it.
The whole networking stack expects 4byte alignment and the driver _must_
make sure it is this way. Either by padding a constant number of bytes at the front
of each allocated SKB, or (if the alignment differs) use dynamic checks
for the lowest few bits of the pointer passed to mac80211.
--
Greetings Michael.
next prev parent reply other threads:[~2008-11-28 22:45 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-25 8:54 zd1211rw (2.6.26 sparc64): unaligned access (zd_mac_rx) Shaddy Baddah
2008-10-25 9:17 ` Johannes Berg
2008-10-25 11:25 ` Sebastian Andrzej Siewior
2008-10-25 12:05 ` Johannes Berg
2008-10-26 22:00 ` Sebastian Andrzej Siewior
2008-10-27 7:00 ` Johannes Berg
2008-10-25 11:21 ` Sebastian Andrzej Siewior
2008-10-25 11:25 ` Michael Buesch
2008-10-25 11:28 ` Sebastian Andrzej Siewior
2008-10-25 11:31 ` Michael Buesch
2008-10-25 11:38 ` Sebastian Andrzej Siewior
2008-10-25 15:13 ` Shaddy Baddah
[not found] ` <491589ED.4090904@hotmail.com>
2008-11-08 12:45 ` Shaddy Baddah
2008-11-08 13:11 ` Johannes Berg
[not found] ` <491653A6.20705@hotmail.com>
2008-11-09 3:06 ` Shaddy Baddah
[not found] ` <49165436.4040306@hotmail.com>
2008-11-09 3:08 ` Shaddy Baddah
2008-11-09 12:00 ` Michael Buesch
2008-11-09 8:56 ` Johannes Berg
2008-11-09 9:03 ` Johannes Berg
2008-11-09 12:02 ` Michael Buesch
2008-11-09 18:31 ` Johannes Berg
[not found] ` <4916F1C0.1040703@hotmail.com>
2008-11-09 14:20 ` Shaddy Baddah
[not found] ` <49184F82.9070102@hotmail.com>
2008-11-10 15:13 ` Shaddy Baddah
[not found] ` <492F82EA.4030902@hotmail.com>
2008-11-28 5:34 ` Shaddy Baddah
2008-11-28 7:10 ` David Miller
2008-11-28 22:44 ` Michael Buesch [this message]
[not found] ` <49310454.60906@hotmail.com>
2008-11-29 8:59 ` Shaddy Baddah
2008-11-29 9:50 ` Johannes Berg
[not found] ` <49313C0E.9030309@hotmail.com>
2008-11-29 12:56 ` Shaddy Baddah
[not found] ` <492F856D.9020200@hotmail.com>
2008-11-28 5:45 ` Shaddy Baddah
2008-11-28 6:47 ` Harvey Harrison
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=200811282344.29293.mb@bu3sch.de \
--to=mb@bu3sch.de \
--cc=linux-wireless@vger.kernel.org \
--cc=shaddy_baddah@hotmail.com \
/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).