linux-kernel - Re: linux-next: build failure after merge of the vhost tree

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Date:   Thu, 8 Jul 2021 01:37:51 -0400
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the vhost tree

On Thu, Jul 08, 2021 at 11:08:54AM +1000, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the vhost tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> drivers/block/virtio_blk.c:986:14: error: initialization of 'int (*)(struct virtio_device *, void *)' from incompatible pointer type 'int (*)(struct virtio_device *)' [-Werror=incompatible-pointer-types]
>   986 |  .probe    = virtblk_probe,
>       |              ^~~~~~~~~~~~~
> drivers/block/virtio_blk.c:986:14: note: (near initialization for 'virtio_blk.probe')
> drivers/char/virtio_console.c:2213:11: error: initialization of 'int (*)(struct virtio_device *, void *)' from incompatible pointer type 'int (*)(struct virtio_device *)' [-Werror=incompatible-pointer-types]
>  2213 |  .probe = virtcons_probe,
>       |           ^~~~~~~~~~~~~~
> drivers/char/virtio_console.c:2213:11: note: (near initialization for 'virtio_console.probe')
> drivers/char/virtio_console.c:2228:11: error: initialization of 'int (*)(struct virtio_device *, void *)' from incompatible pointer type 'int (*)(struct virtio_device *)' [-Werror=incompatible-pointer-types]
>  2228 |  .probe = virtcons_probe,
>       |           ^~~~~~~~~~~~~~
> drivers/char/virtio_console.c:2228:11: note: (near initialization for 'virtio_rproc_serial.probe')
> drivers/scsi/virtio_scsi.c:983:11: error: initialization of 'int (*)(struct virtio_device *, void *)' from incompatible pointer type 'int (*)(struct virtio_device *)' [-Werror=incompatible-pointer-types]
>   983 |  .probe = virtscsi_probe,
>       |           ^~~~~~~~~~~~~~
> drivers/scsi/virtio_scsi.c:983:11: note: (near initialization for 'virtio_scsi_driver.probe')
> drivers/net/virtio_net.c: At top level:
> drivers/net/virtio_net.c:3387:14: error: initialization of 'void * (*)(struct virtio_device *)' from incompatible pointer type 'int (*)(struct virtio_device *)' [-Werror=incompatible-pointer-types]
>  3387 |  .validate = virtnet_validate,
>       |              ^~~~~~~~~~~~~~~~
> drivers/net/virtio_net.c:3387:14: note: (near initialization for 'virtio_net_driver.validate')
> drivers/net/virtio_net.c:3388:11: error: initialization of 'int (*)(struct virtio_device *, void *)' from incompatible pointer type 'int (*)(struct virtio_device *)' [-Werror=incompatible-pointer-types]
>  3388 |  .probe = virtnet_probe,
>       |           ^~~~~~~~~~~~~
> drivers/net/virtio_net.c:3388:11: note: (near initialization for 'virtio_net_driver.probe')
> 
> Caused by commit
> 
>   e397242b72e2 ("virtio: allow passing config data from validate callback")
> 
> I have used the vhost tree from next-20210707 for today.


My bad - pushed a wrong head by mistake. thanks!

> -- 
> Cheers,
> Stephen Rothwell