From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 908431CB515 for ; Thu, 10 Oct 2024 14:08:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728569314; cv=none; b=ZT4BI6jxEyWLa9dQgqKWYUEsVTaq0ZzPicQnCfOAmo0JHvLv1E4u/rcxavw09/435NPPWcLDvsLJT6uL5nW48BSWlpCSgpvG3z88e9imEVEfvYhgy0r0Owjw9px1bw56X6AZkT42j8KfeO11QyluSnW99b2lThzR9VC7b2k62QE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728569314; c=relaxed/simple; bh=xSCZX1TBWIItjzLN5OOkULJXKlmgSXHuWkvbuKZsiqQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=JXuXH5cFYCKcURR8ieuAUeSZxeMvDVD3ZY7bnF7PUV5fGC26V0mcX15rjCH7O8ZYEzlM8ofa1X4ewWA06BQtqY0a1oMq6QrXtgAMe1cpu1Um51ARyT/XODSNfhVRvkJgn9diiCibdcm5QCZBDhc1Z3dD+gK/qKtQDjBpt/2fbxQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jC7CfwzX; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jC7CfwzX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BC65FC4CEC5; Thu, 10 Oct 2024 14:08:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1728569314; bh=xSCZX1TBWIItjzLN5OOkULJXKlmgSXHuWkvbuKZsiqQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=jC7CfwzXRt9w224byL1+xLviFIGHuXUSaqrP45XPB7h14TZcqPrhPfS6Jfx7OWLmh NGxpd9VJqU+mvoyW/i2UcEKm0eW0O9MxGcJzFxZ2+B71Ba+qpYtbnJRbtVZRPrdHxk zHYZfe5yawltJTUKXqRcXDvfC4o7KRbLEx7nYj9rW1zVJa6+sFGiFTHz6k99TRn6Or rCtGyt28BEm6fZ9PuhyPymjyU9kfnG/7PnJQJE9VsKhS1ps51IlzygN0c9pKNy27Uv gHLUR4F8oEl8udSJ2+mIyqGI9NrFTdA+/mIsgSBzyUZJx2CAH+Oqs1rd2B8WL8hUMz W+X3e0VJ+AksQ== Date: Thu, 10 Oct 2024 10:08:32 -0400 From: Sasha Levin To: Ido Schimmel Cc: stable@vger.kernel.org, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, edumazet@google.com, jiri@nvidia.com, gregkh@linuxfoundation.org, vkarri@nvidia.com Subject: Re: [PATCH stable 6.1] devlink: Fix RCU stall when unregistering a devlink instance Message-ID: References: <20241001112035.973187-1-idosch@nvidia.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20241001112035.973187-1-idosch@nvidia.com> On Tue, Oct 01, 2024 at 02:20:35PM +0300, Ido Schimmel wrote: >I read the stable rules and I am not providing an "upstream commit ID" >since the code in upstream has been reworked, making this fix >irrelevant. The only affected stable kernel is 6.1.y. Could you please add some information about *how* the code has changed so backporting became infeasible? In our experience, custom backports tend to cause more pain than what they fix, so at least our future-selves could use some pointers around what happened here. -- Thanks, Sasha