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| author | Heinz Graalfs <graalfs@linux.vnet.ibm.com> | 2013-10-29 09:38:50 +1030 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2013-10-29 11:28:11 +1030 |
| commit | 46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37 (patch) | |
| tree | 39b9bd752cb3cb43a5e11d4f0fc35f425f1d02e2 /drivers/remoteproc | |
| parent | 630b54d33493d1f67e79b148b5e361c5bbd3f29d (diff) | |
| download | linux-stable-46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37.tar.gz linux-stable-46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37.tar.bz2 linux-stable-46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37.zip | |
virtio_ring: change host notification API
Currently a host kick error is silently ignored and not reflected in
the virtqueue of a particular virtio device.
Changing the notify API for guest->host notification seems to be one
prerequisite in order to be able to handle such errors in the context
where the kick is triggered.
This patch changes the notify API. The notify function must return a
bool return value. It returns false if the host notification failed.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/remoteproc_virtio.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c index b09c75c21b60..a34b50690b4e 100644 --- a/drivers/remoteproc/remoteproc_virtio.c +++ b/drivers/remoteproc/remoteproc_virtio.c @@ -30,7 +30,7 @@ #include "remoteproc_internal.h" /* kick the remote processor, and let it know which virtqueue to poke at */ -static void rproc_virtio_notify(struct virtqueue *vq) +static bool rproc_virtio_notify(struct virtqueue *vq) { struct rproc_vring *rvring = vq->priv; struct rproc *rproc = rvring->rvdev->rproc; @@ -39,6 +39,7 @@ static void rproc_virtio_notify(struct virtqueue *vq) dev_dbg(&rproc->dev, "kicking vq index: %d\n", notifyid); rproc->ops->kick(rproc, notifyid); + return true; } /** |