| Message ID | 1305906601-25324-3-git-send-email-peter.maydell@linaro.org |
|---|---|
| State | New |
| Headers | show |
Peter Maydell <peter.maydell@linaro.org> writes: > Don't warn about the default network setup that you get if no command line > -net options are specified. There are two cases that we would otherwise > complain about: > > (1) board doesn't support a NIC but the implicit "-net nic" requested one Maybe such board should declare no_nic, similar to no_parallel & friends. But that's out of this patch's scope. This complaint is only added in the next patch, isn't it? I don't mind. > (2) CONFIG_SLIRP not set, so the implicit "-net nic" sets up a nic that > isn't connected to anything This one's already there, I think.
On 23 May 2011 09:30, Markus Armbruster <armbru@redhat.com> wrote: > Peter Maydell <peter.maydell@linaro.org> writes: > >> Don't warn about the default network setup that you get if no command line >> -net options are specified. There are two cases that we would otherwise >> complain about: >> >> (1) board doesn't support a NIC but the implicit "-net nic" requested one > > Maybe such board should declare no_nic, similar to no_parallel & > friends. But that's out of this patch's scope. I think in the brave new qdev world this kind of thing should be handled generically by warning about any -device requested devices which couldn't be plugged into anything sensible. > This complaint is only added in the next patch, isn't it? I don't mind. It won't explicitly say "you asked for a NIC and didn't get one", but it will make the obscurer complaint "Warning: vlan 0 with no nics", because the implicit '-net user' is then not connected to anything. I was deliberately slightly vague with the comment text so it would be true both before and after the following patch :-) >> (2) CONFIG_SLIRP not set, so the implicit "-net nic" sets up a nic that >> isn't connected to anything > > This one's already there, I think. No, without this patch qemu will complain "Warning: vlan 0 is not connected to host network" if you configured with --disable-slirp. (--disable-slirp seems to have been left out of configure --help; I assume that's an oversight.) -- PMM
diff --git a/net.c b/net.c index 1b521a9..68c2840 100644 --- a/net.c +++ b/net.c @@ -1305,6 +1305,18 @@ void net_check_clients(void) VLANState *vlan; VLANClientState *vc; + /* Don't warn about the default network setup that you get if + * no command line -net or -netdev options are specified. There + * are two cases that we would otherwise complain about: + * (1) board doesn't support a NIC but the implicit "-net nic" + * requested one + * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" + * sets up a nic that isn't connected to anything. + */ + if (default_net) { + return; + } + QTAILQ_FOREACH(vlan, &vlans, next) { int has_nic = 0, has_host_dev = 0;
Don't warn about the default network setup that you get if no command line -net options are specified. There are two cases that we would otherwise complain about: (1) board doesn't support a NIC but the implicit "-net nic" requested one (2) CONFIG_SLIRP not set, so the implicit "-net nic" sets up a nic that isn't connected to anything Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- net.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-)