From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Perches Subject: Re: [PATCH] skbuff: make skb_put_zero() return void Date: Wed, 14 Jun 2017 14:18:16 -0700 Message-ID: <1497475096.18751.76.camel@perches.com> References: <20170614201720.21070-1-johannes@sipsolutions.net> <1497472613.18751.67.camel@perches.com> <1497472829.9377.13.camel@sipsolutions.net> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit To: Johannes Berg , netdev@vger.kernel.org Return-path: Received: from smtprelay0248.hostedemail.com ([216.40.44.248]:36339 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751760AbdFNVST (ORCPT ); Wed, 14 Jun 2017 17:18:19 -0400 In-Reply-To: <1497472829.9377.13.camel@sipsolutions.net> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, 2017-06-14 at 22:40 +0200, Johannes Berg wrote: > On Wed, 2017-06-14 at 13:36 -0700, Joe Perches wrote: > > > > Given you are adding a lot of these, it might be better > > to add an exported function that duplicates most of > > skb_put with a memset at the end. > > Yeah, could be done. I'm not sure why you'd want to duplicate it rather > than call it though? To make it about as fast? Yeah, that and reduced stack use. Dunno how performance sensitive these uses really are but it seems some might be for slow cpu wireless APs in both the rx and tx paths.