Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:60487 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757485AbZJaKDu (ORCPT ); Sat, 31 Oct 2009 06:03:50 -0400 Subject: Re: ieee80211_tx_status: headroom too small From: Johannes Berg To: Ivo van Doorn Cc: Nikolai ZHUBR , linux-wireless@vger.kernel.org In-Reply-To: <200910311044.45687.IvDoorn@gmail.com> References: <1094614475.20091030230028@mail.ru> <200910311030.45582.IvDoorn@gmail.com> <1256981677.3555.94.camel@johannes.local> <200910311044.45687.IvDoorn@gmail.com> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-1PGU5q91NAAJFBGQA5p4" Date: Sat, 31 Oct 2009 11:03:52 +0100 Message-ID: <1256983432.3555.121.camel@johannes.local> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-1PGU5q91NAAJFBGQA5p4 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sat, 2009-10-31 at 10:44 +0100, Ivo van Doorn wrote: > > Or maybe we should just not bother with having drivers do the alignment > > any more -- mac80211 does that now and it only does it if necessary > > (i.e. not on powerpc/x86) >=20 > I think you mean the RX alignment, while I am talking about the TX alignm= ent. > Beacons and some othe frames must be 4-byte alignment because the wirelel= ess > hardware requires it. Oh, indeed, I got confused. Hmm. TX alignment is weird ... no driver really needs that except rt2x00 afaik. Which frames require this? johannes --=-1PGU5q91NAAJFBGQA5p4 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJK7AuFAAoJEODzc/N7+QmaSW0P/1r09T9lE2dGQWE3SdfRURRr jLraSyOa3p0WcJVZCFzsxDHIvXhDKFOB7Xdcaoemg/PEGooGSpatiRibaxYLrGaf FOhs6x9IaqfiOCZiYUEhxdp/5ZlKH84ojbeuDoLlOkVVHj29S1ZbMd5sEik+zuQX yDF52VWuw1izqNrQ9fSbZV4Zz2+etB7BdKfRH2Hh2quV7amMlTqdSSJJG1sScMvX qSbUD3pI9UvmrwS1ksu+AJU/0oWmH9FxptkiztM8BBg/aT6OC/+DYNurzoayutYI ZQiS+Tk935oXDJt74CLU++g0Lb/jIp/jpjYKkH/eZLIRv+bRGdI+31YsR6Skmm+l MKQThn5ABYGc3pKX9wApEVU52jM+5q4t6miwYRycQl4gwV5KrHCOifeXZQk/bFTZ i/cFCnH5mBr6wKrQMN5QXSZp8uf4vvT98Keh2fUmdRca4B7EwXIHYeXfotNcYQRa ox8HV1wc7rwgIGAaYayLW9Toqqp1KFWVpA2bMWM1rC/liEn5REepG9svW2mT8IkE 3zrOWf3zz+RomM9KPGNu7/JUYARxT0Rl0RzOEgIcRRjfNCyhFrUb+/gs0+uDp8m1 cPoH4kto2kjr27aaO1ruNIG8YEG+0xJZBlU0DRaeqmjF9Vw6Mvyo1+KVKO4LBtDR jxap6ErQU626Fy39gXU6 =geCg -----END PGP SIGNATURE----- --=-1PGU5q91NAAJFBGQA5p4--