From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from s3.sipsolutions.net ([5.9.151.49]:40555 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751006AbcEaKOf (ORCPT ); Tue, 31 May 2016 06:14:35 -0400 Message-ID: <1464689672.3076.11.camel@sipsolutions.net> (sfid-20160531_121438_658103_63BAD29E) Subject: Re: [PATCH] mac80211: fix fast_tx header alignment From: Johannes Berg To: Felix Fietkau , linux-wireless@vger.kernel.org Date: Tue, 31 May 2016 12:14:32 +0200 In-Reply-To: <1463672078-7982-1-git-send-email-nbd@nbd.name> References: <1463672078-7982-1-git-send-email-nbd@nbd.name> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, 2016-05-19 at 17:34 +0200, Felix Fietkau wrote: > The header field is defined as u8[] but also accessed as struct > ieee80211_hdr. Enforce an alignment of 2 to prevent unnecessary > unaligned accesses, which can be very harmful for performance on many > platforms. > > Applied, thanks. johannes