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SubjectRe: linux-next: build warning after merge of the vhost tree
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On Mon, 7 Mar 2022 04:17:39 -0500, "Michael S. Tsirkin" <mst@redhat.com> wrote:
> On Mon, Mar 07, 2022 at 02:46:40PM +0800, Xuan Zhuo wrote:
> > On Mon, 7 Mar 2022 15:40:11 +1100, Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> > > Hi all,
> > >
> > > After merging the vhost tree, today's linux-next build (arm
> > > multi_v7_defconfig) produced this warning:
> > >
> > > drivers/net/virtio_net.c: In function 'virtnet_rx_vq_reset':
> > > drivers/net/virtio_net.c:1823:63: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'int' [-Wformat=]
> > > 1823 | "reset rx reset vq fail: rx queue index: %ld err: %d\n",
> > > | ~~^
> > > | |
> > > | long int
> > > | %d
> > > 1824 | rq - vi->rq, err);
> > > | ~~~~~~~~~~~
> > > | |
> > > | int
> > > drivers/net/virtio_net.c: In function 'virtnet_tx_vq_reset':
> > > drivers/net/virtio_net.c:1873:63: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'int' [-Wformat=]
> > > 1873 | "reset tx reset vq fail: tx queue index: %ld err: %d\n",
> > > | ~~^
> > > | |
> > > | long int
> > > | %d
> > > 1874 | sq - vi->sq, err);
> > > | ~~~~~~~~~~~
> > > | |
> > > | int
> > >
> > > Introduced by commit
> > >
> > > 920ee0c540a2 ("virtio_net: support rx/tx queue reset")
> > >
> >
> >
> > Can you help me test this patch? I don't have an arm environment around me.
> >
> > Thanks
>
>
> You should at least use
> https://mirrors.edge.kernel.org/pub/tools/crosstool/
> to test-build + test on x86.


I reproduced the problem using this method, and verified that this patch fixes
it. I submitted a patch email.

Thanks.

>
> >
> > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> > index 1fa2d632a994..4d629d1ea894 100644
> > --- a/drivers/net/virtio_net.c
> > +++ b/drivers/net/virtio_net.c
> > @@ -1820,7 +1820,7 @@ static int virtnet_rx_vq_reset(struct virtnet_info *vi,
> >
> > err:
> > netdev_err(vi->dev,
> > - "reset rx reset vq fail: rx queue index: %ld err: %d\n",
> > + "reset rx reset vq fail: rx queue index: %td err: %d\n",
> > rq - vi->rq, err);
> > virtnet_napi_enable(rq->vq, &rq->napi);
> > return err;
> > @@ -1870,7 +1870,7 @@ static int virtnet_tx_vq_reset(struct virtnet_info *vi,
> >
> > err:
> > netdev_err(vi->dev,
> > - "reset tx reset vq fail: tx queue index: %ld err: %d\n",
> > + "reset tx reset vq fail: tx queue index: %td err: %d\n",
> > sq - vi->sq, err);
> > virtnet_napi_tx_enable(vi, sq->vq, &sq->napi);
> > return err;
> >
> > > --
> > > Cheers,
> > > Stephen Rothwell
> > >
>

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