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Subject: Re: [virtio-dev] Re: [PATCH V2] virtio: i2c: Allow zero-length transactions
On 18-08-21, 13:39, Viresh Kumar wrote: > On 18-08-21, 10:03, Arnd Bergmann wrote: > > I'd prefer your earlier approach. > > > > My feeling is that changing the virtqueue code to allow zero-length > > buffers is more fragile than having something in the virtio-i2c code > > that has a special case for leaving out both read_buf and write_buf. > > Exactly what I think about it and so my hesitation for the same :) > > > Even if we fix the linux virtqueue code to deal with zero-length > > NULL buffers, there are other implementations that will require > > similar workarounds for existing sanity checks. > > Lets say what Michael thinks about it. Michael, do you want to re comment on this ? -- viresh
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