23 Aug
2021
23 Aug
'21
7:31 a.m.
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 ?
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viresh