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 8FF9228E5F4; Wed, 4 Jun 2025 13:28:45 +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=1749043725; cv=none; b=jV1eo7FYJXf9LPW7dlM1mIchBHJ7OmnZM7YdBjS/1aHwsVao7/1dpF/FS1MQTOjA3bRn/VYr6myx9dldYMbYeErZwC4Sw6nSqIZVbzav3AWGLiXhbO8bR63m+DTJBjZcETnJcnqXZRASr8mkEv12IYOhLKJyuUA9eCTy/Y82xyI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749043725; c=relaxed/simple; bh=EtYNXrwdjeQMy5hhXvDN/L4Y98+z7ZeKJjwYdpvwtS0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Q3XnwpSrROMbVFqvEdN8mYoCQ3BRCr1ovCsC7jpzdWLAREeiYDerdf7fYzimHU2vUsV58EFGd6uh1PGlww1mwfIGBL/qQd/nsyKebjW7GgyDX4illTPfLtl1oI701xRn2EbcFqojJPGBo8e2FJsAdlE9jxjnxHQjgHBDWRKJ2DM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=F+MWY6uP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="F+MWY6uP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1524C4CEE7; Wed, 4 Jun 2025 13:28:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1749043725; bh=EtYNXrwdjeQMy5hhXvDN/L4Y98+z7ZeKJjwYdpvwtS0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=F+MWY6uPm2sV7U6/G78GX0MVVufjul6GtlgGc/tW+junQz3A49bZD/XqQljSUEI8e tSa8CrOAQnY9H38VHesjYxnSK1S5vxA+4g1uKJhFGwD/+gTpGodObmQ5CKgy/DQMtB xQInpk/o9C8kUmEXifUkn3gmR9mdgS1tVNJWALTA= Date: Wed, 4 Jun 2025 15:28:42 +0200 From: Greg Kroah-Hartman To: Francesco Dolcini Cc: Sasha Levin , stable@vger.kernel.org, patches@lists.linux.dev, Jeff Chen , Francesco Dolcini , Johannes Berg , Vitor Soares Subject: Re: [PATCH 6.12 130/626] wifi: mwifiex: Fix HT40 bandwidth issue. Message-ID: <2025060427-putdown-rumble-fefb@gregkh> References: <20250527162445.028718347@linuxfoundation.org> <20250527162450.311998747@linuxfoundation.org> <20250603203337.GA109929@francesco-nb> <2025060408-concur-bubbly-04ea@gregkh> <20250604102352.GB31115@francesco-nb> <2025060419-gloomily-exclusive-dc3c@gregkh> <20250604131724.GA273097@francesco-nb> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250604131724.GA273097@francesco-nb> On Wed, Jun 04, 2025 at 03:17:24PM +0200, Francesco Dolcini wrote: > On Wed, Jun 04, 2025 at 12:36:12PM +0200, Greg Kroah-Hartman wrote: > > On Wed, Jun 04, 2025 at 12:23:52PM +0200, Francesco Dolcini wrote: > > > On Wed, Jun 04, 2025 at 10:39:09AM +0200, Greg Kroah-Hartman wrote: > > > > On Tue, Jun 03, 2025 at 10:33:54PM +0200, Francesco Dolcini wrote: > > > > > Hello Greg, Sasha > > > > > > > > > > On Tue, May 27, 2025 at 06:20:23PM +0200, Greg Kroah-Hartman wrote: > > > > > > 6.12-stable review patch. If anyone has any objections, please let me know. > > > > > > > > > > > > ------------------ > > > > > > > > > > > > From: Jeff Chen > > > > > > > > > > > > [ Upstream commit 4fcfcbe457349267fe048524078e8970807c1a5b ] > > > > > > > > > > > > This patch addresses an issue where, despite the AP supporting 40MHz > > > > > > bandwidth, the connection was limited to 20MHz. Without this fix, > > > > > > even if the access point supports 40MHz, the bandwidth after > > > > > > connection remains at 20MHz. This issue is not a regression. > > > > > > > > > > > > Signed-off-by: Jeff Chen > > > > > > Reviewed-by: Francesco Dolcini > > > > > > Link: https://patch.msgid.link/20250314094238.2097341-1-jeff.chen_1@nxp.com > > > > > > Signed-off-by: Johannes Berg > > > > > > Signed-off-by: Sasha Levin > > > > > > > > > > Can you please drop this patch from any additional stable kernel update? > > > > > It seems that on 6.12.y it introduced a regression, we are currently > > > > > investigating it and we'll eventually send a revert for 6.12.y. > > > > > > > > This is already in the following released kernels: > > > > 6.12.31 6.14.9 6.15 > > > > I'll be glad to queue up the revert when it hits Linus's tree. Is that > > > > planned anytime soon? > > > > > > mainline is not affected, the issues seems specific of the backport on > > > 6.12 (6.14 not tested yet), therefore I do not expect any revert in > > > Linus tree. > > > > So 6.15 is not an issue either? > > > > > I am looking into the details now, to be sure about my finding, I'll > > > confirm you in the next few days. > > > > > > If you prefer to not wait, given that this fix was just improving the > > > performance of a specific use case, you can just revert from 6.12.y and > > > 6.14.y. > > > > And 6.15? I'd prefer if you submit the revert as that way it can > > contain the relevant information about why the revert is only needed > > in the stable kernel(s) and not also in Linus's tree. > > After more testing I can say that this commit is just broken on > every tree, I'll send a revert to mainline soon, and after that you > should get it like any other fix. Make sure to have a cc: stable on it so that we do get it properly :) thanks, greg k-h