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Subject: Re: [virtio-comment] [PATCH] vsock: add documentation about len header field
CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you can confirm the sender and know the content is safe. Hi Laura, On Tue, Mar 22, 2022 at 10:50 AM Laura Loghin <lauralg@amazon.com> wrote:Signed-off-by: Laura Loghin <lauralg@amazon.com> --- virtio-vsock.tex | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/virtio-vsock.tex b/virtio-vsock.tex index d79984d..e32cad8 100644 --- a/virtio-vsock.tex +++ b/virtio-vsock.tex @@ -107,6 +107,11 @@ \subsection{Device Operation}\label{sec:Device Types / Socket Device / Device Op #define VIRTIO_VSOCK_OP_CREDIT_REQUEST 7 \end{lstlisting} +\field{len} is the size of the payload, in bytes. However, the driver may +provide buffer(s) for the payload that have a total size longer than +\field{len}. If that is the case, only the first \field{len} bytes MUST be +used for the actual data. +IIUC MUST and friends are for normative sections, so I would remove the last sentence.
You're right, I'll remove it. It should already be clear enough only the first len bytes need to be used for the payload.
Thanks, Laura
Thanks, Stefano
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