linux-kernel - Re: [PATCH v14] i2c: virtio: add a virtio i2c frontend driver

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Message-ID: <YTW33xK8QkYcOoFw@kunai>
Date:   Mon, 6 Sep 2021 08:40:31 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     "Michael S. Tsirkin" <mst@...hat.com>,
        Jie Deng <jie.deng@...el.com>, linux-i2c@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, arnd@...db.de, jasowang@...hat.com,
        andriy.shevchenko@...ux.intel.com, yu1.wang@...el.com,
        shuo.a.liu@...el.com, conghui.chen@...el.com, stefanha@...hat.com,
        gregkh@...uxfoundation.org
Subject: Re: [PATCH v14] i2c: virtio: add a virtio i2c frontend driver


> The current version simply fails to transmit the messages in case the
> length of a buffer is 0. I have patch ready to make it work with the
> proposed spec changes, just waiting for them to be accepted.

For the record, it fails gracefully. The driver has the proper quirk
flag set, so the I2C core knows it doesn't zupport 0 length messages.


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