vhost: fix sparse warnings

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index a6a88df..38989d1 100644 (file)
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -641,7 +641,7 @@ static struct miscdevice vhost_net_misc = {
        &vhost_net_fops,
 };
 
-int vhost_net_init(void)
+static int vhost_net_init(void)
 {
        int r = vhost_init();
        if (r)
@@ -658,7 +658,7 @@ err_init:
 }
 module_init(vhost_net_init);
 
-void vhost_net_exit(void)
+static void vhost_net_exit(void)
 {
        misc_deregister(&vhost_net_misc);
        vhost_cleanup();

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index b8e1127..3f10194 100644 (file)
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -714,8 +714,8 @@ int vhost_log_write(struct vhost_virtqueue *vq, struct vhost_log *log,
        return 0;
 }
 
-int translate_desc(struct vhost_dev *dev, u64 addr, u32 len,
-                  struct iovec iov[], int iov_size)
+static int translate_desc(struct vhost_dev *dev, u64 addr, u32 len,
+                         struct iovec iov[], int iov_size)
 {
        const struct vhost_memory_region *reg;
        struct vhost_memory *mem;
@@ -740,7 +740,7 @@ int translate_desc(struct vhost_dev *dev, u64 addr, u32 len,
                _iov = iov + ret;
                size = reg->memory_size - addr + reg->guest_phys_addr;
                _iov->iov_len = min((u64)len, size);
-               _iov->iov_base = (void *)(unsigned long)
+               _iov->iov_base = (void __user *)(unsigned long)
                        (reg->userspace_addr + addr - reg->guest_phys_addr);
                s += size;
                addr += size;
@@ -994,7 +994,7 @@ void vhost_discard_vq_desc(struct vhost_virtqueue *vq)
  * want to notify the guest, using eventfd. */
 int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len)
 {
-       struct vring_used_elem *used;
+       struct vring_used_elem __user *used;
 
        /* The virtqueue contains a ring of used buffers.  Get a pointer to the
         * next entry in that used ring. */
@@ -1018,7 +1018,8 @@ int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len)
                smp_wmb();
                /* Log used ring entry write. */
                log_write(vq->log_base,
-                         vq->log_addr + ((void *)used - (void *)vq->used),
+                         vq->log_addr +
+                          ((void __user *)used - (void __user *)vq->used),
                          sizeof *used);
                /* Log used index update. */
                log_write(vq->log_base,