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 5DFC3C25B06 for ; Thu, 11 Aug 2022 16:12:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236124AbiHKQMX (ORCPT ); Thu, 11 Aug 2022 12:12:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235371AbiHKQMD (ORCPT ); Thu, 11 Aug 2022 12:12:03 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2A7098D04; Thu, 11 Aug 2022 08:56:59 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 80C58B8214A; Thu, 11 Aug 2022 15:56:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EFC8AC43470; Thu, 11 Aug 2022 15:56:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1660233417; bh=ZnvyI0mIDZodC4vJ4wFlk3LaRrrpcSAdA/qWbSvK0Ww=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=VyTG+PqH1Ss6lWD9+43NRO+a8Zc9sDT5QCM1yCT0VHmH5KHToaawkMLHjbNRGY2d4 oLJTtmvzXEmqHhJv3ujJXyyheP/cLFOcfZ2QTlUfobFk22UNQjxaqWK4SLOybqdGyc 2vRz5S9aT43mFmp3CZHTRFjqYEicpk/P/nfPVPUjsBKxbCzRizt4hGgKlQiwzCJTAL nkDHujCTcl1pJ0Bemc8Pzs5Nj5MxxaaWAcAjQekmWIBhnjtviXcLwmK+DhHoM3X9qw YHH5vDvzB2aP9lQIoacCx19LjwtUikeVVME2cCIuJI+MVHjmVVW9y9q6KXHhP+tN8K 6seOBjZe/JW/w== Date: Thu, 11 Aug 2022 08:56:48 -0700 From: Jakub Kicinski To: Sasha Levin Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Moshe Shemesh , Jiri Pirko , davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, netdev@vger.kernel.org Subject: Re: [PATCH AUTOSEL 5.19 076/105] net: devlink: avoid false DEADLOCK warning reported by lockdep Message-ID: <20220811085648.33664dda@kernel.org> In-Reply-To: <20220811152851.1520029-76-sashal@kernel.org> References: <20220811152851.1520029-1-sashal@kernel.org> <20220811152851.1520029-76-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Thu, 11 Aug 2022 11:28:00 -0400 Sasha Levin wrote: > From: Moshe Shemesh > > [ Upstream commit e26fde2f5befad0951fe6345403616bf51e901be ] > > Add a lock_class_key per devlink instance to avoid DEADLOCK warning by > lockdep, while locking more than one devlink instance in driver code, > for example in opening VFs flow. I think we can drop this one, no driver locks multiple instances in 5.19. The whole infra for that stuff is new. Not that adding a lockdep key can hurt in any way..