linux-kernel - Re: [PATCH] usb: xhci-mtk: set the dma max_seg

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Date:   Thu, 29 Jun 2023 09:13:23 +0200
From:   Ricardo Ribalda <ribalda@...omium.org>
To:     Zubin Mithra <zsm@...omium.org>
Cc:     Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        linux-usb@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: xhci-mtk: set the dma max_seg_size

Hi Zubin

On Wed, 28 Jun 2023 at 23:57, Zubin Mithra <zsm@...omium.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@...omium.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@...omium.org>
> > Reported-by: Zubin Mithra <zsm@...omium.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:

Fixes: 0cbd4b34cda9 ("xhci: mediatek: support MTK xHCI host controller")
Cc: stable@...r.kernel.org