From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Ikjoon Jang <ikjn@chromium.org>
Cc: Zhanyong Wang <zhanyong.wang@mediatek.com>,
Mathias Nyman <mathias.nyman@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Tianping Fang <tianping.fang@mediatek.com>,
linux-mediatek@lists.infradead.org,
Matthias Brugger <matthias.bgg@gmail.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5] usb: xhci-mtk: fix unreleased bandwidth data
Date: Fri, 8 Jan 2021 14:34:08 +0800 [thread overview]
Message-ID: <1610087648.24856.41.camel@mhfsdcap03> (raw)
In-Reply-To: <20201229142406.v5.1.Id0d31b5f3ddf5e734d2ab11161ac5821921b1e1e@changeid>
On Tue, 2020-12-29 at 14:24 +0800, Ikjoon Jang wrote:
> xhci-mtk has hooks on add_endpoint() and drop_endpoint() from xhci
> to handle its own sw bandwidth managements and stores bandwidth data
> into internal table every time add_endpoint() is called,
> so when bandwidth allocation fails at one endpoint, all earlier
> allocation from the same interface could still remain at the table.
If failed to add an endpoint, will cause failure of its interface
config, then the other endpoints in the same interface will be dropped
later? you mean some endpoints in an interface may fail but without
affecting its function?
>
> This patch adds two more hooks from check_bandwidth() and
> reset_bandwidth(), and make mtk-xhci to releases all failed endpoints
> from reset_bandwidth().
>
> Fixes: 08e469de87a2 ("usb: xhci-mtk: supports bandwidth scheduling with multi-TT")
> Signed-off-by: Ikjoon Jang <ikjn@chromium.org>
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next prev parent reply other threads:[~2021-01-08 6:34 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-29 6:24 [PATCH v5] usb: xhci-mtk: fix unreleased bandwidth data Ikjoon Jang
2021-01-07 11:09 ` Mathias Nyman
2021-01-08 2:56 ` Ikjoon Jang
2021-01-08 6:11 ` Chunfeng Yun
2021-01-08 14:46 ` Mathias Nyman
2021-01-12 5:48 ` Ikjoon Jang
2021-01-14 2:23 ` Chunfeng Yun
2021-01-14 8:29 ` Chunfeng Yun
2021-01-15 2:51 ` Ikjoon Jang
2021-01-19 2:33 ` Chunfeng Yun
2021-01-08 6:34 ` Chunfeng Yun [this message]
2021-01-08 10:50 ` Ikjoon Jang
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