Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Thu, 29 Jun 2023 10:40:09 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Ricardo Ribalda <ribalda@chromium.org>
Cc:     Zubin Mithra <zsm@chromium.org>,
        Chunfeng Yun <chunfeng.yun@mediatek.com>,
        Mathias Nyman <mathias.nyman@intel.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] usb: xhci-mtk: set the dma max_seg_size
Message-ID: <2023062942-thumb-giddily-f0e0@gregkh>
References: <20230628-mtk-usb-v1-1-3c5b2ea3d6b9@chromium.org>
 <CANiDSCsAgD33gMk9-CTGHuUv_b4KfRnO02ETEt6jFtQvw+6cag@mail.gmail.com>
 <ZJystxdl0jVoe5b6@google.com>
 <CANiDSCu3WOqK9wdLDXmW+zbckq15gmxKjtFA4Aghv6uoidO_3Q@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CANiDSCu3WOqK9wdLDXmW+zbckq15gmxKjtFA4Aghv6uoidO_3Q@mail.gmail.com>
Precedence: bulk

On Thu, Jun 29, 2023 at 09:13:23AM +0200, Ricardo Ribalda wrote:
> Hi Zubin
> 
> On Wed, 28 Jun 2023 at 23:57, Zubin Mithra <zsm@chromium.org> wrote:
> >
> > On Wed, Jun 28, 2023 at 11:04:20PM +0200, Ricardo Ribalda wrote:
> > > On Wed, 28 Jun 2023 at 23:00, Ricardo Ribalda <ribalda@chromium.org> wrote:
> > > >
> > > > Allow devices to have dma operations beyond 64K, and avoid warnings such
> > > > as:
> > > >
> > > > DMA-API: xhci-mtk 11200000.usb: mapping sg segment longer than device claims to support [len=98304] [max=65536]
> > > >
> > > > Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> > > Reported-by: Zubin Mithra <zsm@chromium.org>
> >
> > Should this be cc'd to stable@ as well?
> 
> Not sure, in most of the cases this is "just" a warning fix. Let the
> maintainer decide:

Warnings can cause reboots as the majority of the linux systems in the
world run panic-on-warn, so yes, it should be backported.

thanks,

greg k-h