Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:54628 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932110AbcKQL20 (ORCPT ); Thu, 17 Nov 2016 06:28:26 -0500 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Subject: Re: [1/2] mwifiex: fix corner case power save issue From: Kalle Valo In-Reply-To: <1477062948-8558-1-git-send-email-akarwar@marvell.com> References: <1477062948-8558-1-git-send-email-akarwar@marvell.com> To: Amitkumar Karwar Cc: , Cathy Luo , Nishant Sarmukadam , Amitkumar Karwar Message-Id: <20161117112825.D8F186164F@smtp.codeaurora.org> (sfid-20161117_122830_486643_A3F34F31) Date: Thu, 17 Nov 2016 11:28:25 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org List-ID: Amitkumar Karwar wrote: > We may get SLEEP event from firmware even if TXDone for last Tx packet > is still pending. In this case, we may end up accessing PCIe memory for > handling TXDone after power save handshake is completed. This causes > kernel crash with external abort. > > We will delay sending SLEEP confirm to firmware in > this case to resolve the problem. > > Signed-off-by: Amitkumar Karwar > Tested-by: Brian Norris > Reviewed-by: Brian Norris Dropped per request from Amitkumar. Patch set to Changes Requested. -- https://patchwork.kernel.org/patch/9389485/ Documentation about submitting wireless patches and checking status from patchwork: https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches