diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2018-04-20 19:54:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-28 18:26:21 +0100 |
| commit | 809ff9a14bdea2c70440f1f4479d29a179ea6682 (patch) | |
| tree | 6cf4fcd06e2825d258a18cf6e559b80badbb060f /drivers/char | |
| parent | 4cad8c2d8f8b50638dc5da357b5f2e42b5860f19 (diff) | |
virtio_console: don't tie bufs to a vq
[ Upstream commit 2855b33514d290c51d52d94e25d3ef942cd4d578 ]
an allocated buffer doesn't need to be tied to a vq -
only vq->vdev is ever used. Pass the function the
just what it needs - the vdev.
Cc: stable@vger.kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/virtio_console.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 78aab6e246e1..1a566e3b16e0 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -417,7 +417,7 @@ static void reclaim_dma_bufs(void) } } -static struct port_buffer *alloc_buf(struct virtqueue *vq, size_t buf_size, +static struct port_buffer *alloc_buf(struct virtio_device *vdev, size_t buf_size, int pages) { struct port_buffer *buf; @@ -440,7 +440,7 @@ static struct port_buffer *alloc_buf(struct virtqueue *vq, size_t buf_size, return buf; } - if (is_rproc_serial(vq->vdev)) { + if (is_rproc_serial(vdev)) { /* * Allocate DMA memory from ancestor. When a virtio * device is created by remoteproc, the DMA memory is @@ -450,9 +450,9 @@ static struct port_buffer *alloc_buf(struct virtqueue *vq, size_t buf_size, * DMA_MEMORY_INCLUDES_CHILDREN had been supported * in dma-coherent.c */ - if (!vq->vdev->dev.parent || !vq->vdev->dev.parent->parent) + if (!vdev->dev.parent || !vdev->dev.parent->parent) goto free_buf; - buf->dev = vq->vdev->dev.parent->parent; + buf->dev = vdev->dev.parent->parent; /* Increase device refcnt to avoid freeing it */ get_device(buf->dev); @@ -835,7 +835,7 @@ static ssize_t port_fops_write(struct file *filp, const char __user *ubuf, count = min((size_t)(32 * 1024), count); - buf = alloc_buf(port->out_vq, count, 0); + buf = alloc_buf(port->portdev->vdev, count, 0); if (!buf) return -ENOMEM; @@ -954,7 +954,7 @@ static ssize_t port_fops_splice_write(struct pipe_inode_info *pipe, if (ret < 0) goto error_out; - buf = alloc_buf(port->out_vq, 0, pipe->nrbufs); + buf = alloc_buf(port->portdev->vdev, 0, pipe->nrbufs); if (!buf) { ret = -ENOMEM; goto error_out; @@ -1371,7 +1371,7 @@ static unsigned int fill_queue(struct virtqueue *vq, spinlock_t *lock) nr_added_bufs = 0; do { - buf = alloc_buf(vq, PAGE_SIZE, 0); + buf = alloc_buf(vq->vdev, PAGE_SIZE, 0); if (!buf) break; |