diff options
| author | Christoph Hellwig <hch@infradead.org> | 2010-04-13 14:11:25 -0400 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2010-04-14 11:52:08 +0300 |
| commit | a8d3782f9ea7574b8648e69bbb05a0b1d93e437e (patch) | |
| tree | f21fa3d22453b5f701c49b2ed7f906f15bc63944 /drivers/vhost/vhost.c | |
| parent | 179b284e2fc0c638035843968f7d7ab8ab701525 (diff) | |
| download | lwn-a8d3782f9ea7574b8648e69bbb05a0b1d93e437e.tar.gz lwn-a8d3782f9ea7574b8648e69bbb05a0b1d93e437e.zip | |
vhost: fix sparse warnings
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost/vhost.c')
| -rw-r--r-- | drivers/vhost/vhost.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index b8e112720812..3f101946b4f9 100644 --- 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, |