From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 21FDAECAAD8 for ; Wed, 21 Sep 2022 10:38:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230520AbiIUKiw (ORCPT ); Wed, 21 Sep 2022 06:38:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44686 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229709AbiIUKit (ORCPT ); Wed, 21 Sep 2022 06:38:49 -0400 Received: from nbd.name (nbd.name [46.4.11.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AEF308E4D8 for ; Wed, 21 Sep 2022 03:38:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From: References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=fXVNVPjkRy6nV2YL28Jo3KA41s6U1PojjlV+/uomvR8=; b=F6hor1hr/Nbtl112dYgxteES+E Xba+pgfiqn063qm/wF8hzFIXEMyBsYra9/w9DSNO5w9HVsC7RLf1Q8ozAlP3exg8A5KIK70XnRaIB 0XW4LOmeZpiuWCu5llmGK9Yg8E08Ch6adi77LSY8+vdqP9WVNKQFUa93rnuq5lEWUjyY=; Received: from p200300daa7301d00a986799c2cf5dafb.dip0.t-ipconnect.de ([2003:da:a730:1d00:a986:799c:2cf5:dafb] helo=nf.local) by ds12 with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1oax7t-006WK0-S7; Wed, 21 Sep 2022 12:38:45 +0200 Message-ID: Date: Wed, 21 Sep 2022 12:38:45 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.13.0 Subject: Re: [PATCH v2] wifi: mac80211: Fix performance issue with mutex_lock Content-Language: en-US To: Venkat Ch Cc: johannes@sipsolutions.net, linux-wireless@vger.kernel.org, Venkat Chimata References: <20220915043527.737133-1-venkatch@gmail.com> <238a21a8-c97b-5a38-6c08-9057055bf73f@nbd.name> <9acc4159-8223-bbca-a83f-d075660ac6db@nbd.name> <4040f674-8430-69ba-1b6f-f9fd92da413d@nbd.name> From: Felix Fietkau In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 21.09.22 10:31, Venkat Ch wrote: > Hi Felix, > > Thanks again for patiently discussing things. I clearly understand > what you said about locks. Now that we know the background of the > problem, do you suggest any potential solution or any potential > direction that I should start investigating? Please let me know. Maybe try enabling lockdep and see if anything shows up. - Felix