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In qio_channel_socket_set_cork(), we call socket_set_cork() but ignore its success/failure return value. This is OK because we are implementing qio_channel_set_cork() here, and that function's API documentation states that the setting is merely a hint. So even if setting TCP_CORK on the underlying socket fails for some reason, this isn't going to be a problem for the caller; correspondingly the qio_channel_set_cork() function has no error return. Add a comment in qio_channel_socket_set_cork() explaining why we don't check for errors. Resolves: https://gitlab.com/qemu-project/qemu/-/work_items/2254 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>