Return-path: Received: from mga01.intel.com ([192.55.52.88]:14524 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759152Ab0JFToG (ORCPT ); Wed, 6 Oct 2010 15:44:06 -0400 Subject: Re: [PATCH 1/6] iwlwifi: schedule to deprecate software scan support From: "Guy, Wey-Yi" To: "John W. Linville" Cc: "linux-wireless@vger.kernel.org" , "ipw3945-devel@lists.sourceforge.net" In-Reply-To: <20101006190343.GI2472@tuxdriver.com> References: <1286378593-7509-1-git-send-email-wey-yi.w.guy@intel.com> <1286378593-7509-2-git-send-email-wey-yi.w.guy@intel.com> <20101006173609.GH2472@tuxdriver.com> <1286387500.12594.24.camel@wwguy-ubuntu> <20101006190343.GI2472@tuxdriver.com> Content-Type: text/plain Date: Wed, 06 Oct 2010 12:43:17 -0700 Message-Id: <1286394197.12594.25.camel@wwguy-ubuntu> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: Johannes, could you help to answer! On Wed, 2010-10-06 at 12:03 -0700, John W. Linville wrote: > On Wed, Oct 06, 2010 at 10:51:40AM -0700, Guy, Wey-Yi wrote: > > On Wed, 2010-10-06 at 10:36 -0700, John W. Linville wrote: > > > On Wed, Oct 06, 2010 at 08:23:08AM -0700, Wey-Yi Guy wrote: > > > > Hardware scan is the prefer method for all iwlwifi devices; > > > > especially for dual-mode functions. Schedule to deprecate the > > > > software scan support in kernel 2.6.40 > > > > > > > > Signed-off-by: Wey-Yi Guy > > > > > > Hmmm...perhaps you have more confidence in this than I do? > > > My experience suggests that hardware scanning has been the source of > > > a number of problems and having the option to turn it off has provided > > > a useful workaround for any number of users. > > > > > > Anyone else have heartburn over this one? > > > > > The current HW scan implementation was improve a lot and sw scan will > > cause problem, especially once we introduce P2P. > > What support issues are caused by supporting software scanning? > > Whatever issues are caused by scanning with P2P, doesn't mac80211 > have to handle them anyway? > > John