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Date: Wed, 14 Mar 2018 14:36:25 -0700 From: Sonny Rao <sonnyrao@...omium.org> To: kvm@...r.kernel.org Cc: Stefan Hajnoczi <stefanha@...hat.com>, "Michael S . Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>, virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v2] vhost: add vsock compat ioctl This will allow usage of vsock from 32-bit binaries on a 64-bit kernel. Signed-off-by: Sonny Rao <sonnyrao@...omium.org> --- drivers/vhost/vsock.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index 0d14e2ff19f16..ee0c385d9fe54 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -699,12 +699,23 @@ static long vhost_vsock_dev_ioctl(struct file *f, unsigned int ioctl, } } +#ifdef CONFIG_COMPAT +static long vhost_vsock_dev_compat_ioctl(struct file *f, unsigned int ioctl, + unsigned long arg) +{ + return vhost_vsock_dev_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); +} +#endif + static const struct file_operations vhost_vsock_fops = { .owner = THIS_MODULE, .open = vhost_vsock_dev_open, .release = vhost_vsock_dev_release, .llseek = noop_llseek, .unlocked_ioctl = vhost_vsock_dev_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = vhost_vsock_dev_compat_ioctl, +#endif }; static struct miscdevice vhost_vsock_misc = { -- 2.13.5
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