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| author | Paul Mundt <lethal@linux-sh.org> | 2012-01-09 09:56:37 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2012-01-09 09:56:37 +0900 |
| commit | 04cf399640b7acfa9abe2eb7900cd934db8af697 (patch) | |
| tree | f9a055f2f0170550f5f0b0507b06ffce8d98945d /include/linux/virtio_config.h | |
| parent | 17f0056e6a2f3d1818801705f5e12b71217bf4ef (diff) | |
| parent | a0e86bd4252519321b0d102dc4ed90557aa7bee9 (diff) | |
| download | lwn-04cf399640b7acfa9abe2eb7900cd934db8af697.tar.gz lwn-04cf399640b7acfa9abe2eb7900cd934db8af697.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into rmobile-latest
Conflicts:
arch/arm/mach-shmobile/Makefile
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/linux/virtio_config.h')
| -rw-r--r-- | include/linux/virtio_config.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index add4790b21fe..5206d6541da5 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -85,6 +85,8 @@ * @reset: reset the device * vdev: the virtio device * After this, status and feature negotiation must be done again + * Device must not be reset from its vq/config callbacks, or in + * parallel with being added/removed. * @find_vqs: find virtqueues and instantiate them. * vdev: the virtio_device * nvqs: the number of virtqueues to find @@ -100,6 +102,10 @@ * vdev: the virtio_device * This gives the final feature bits for the device: it can change * the dev->feature bits if it wants. + * @bus_name: return the bus name associated with the device + * vdev: the virtio_device + * This returns a pointer to the bus name a la pci_name from which + * the caller can then copy. */ typedef void vq_callback_t(struct virtqueue *); struct virtio_config_ops { @@ -117,6 +123,7 @@ struct virtio_config_ops { void (*del_vqs)(struct virtio_device *); u32 (*get_features)(struct virtio_device *vdev); void (*finalize_features)(struct virtio_device *vdev); + const char *(*bus_name)(struct virtio_device *vdev); }; /* If driver didn't advertise the feature, it will never appear. */ @@ -182,5 +189,14 @@ struct virtqueue *virtio_find_single_vq(struct virtio_device *vdev, return ERR_PTR(err); return vq; } + +static inline +const char *virtio_bus_name(struct virtio_device *vdev) +{ + if (!vdev->config->bus_name) + return "virtio"; + return vdev->config->bus_name(vdev); +} + #endif /* __KERNEL__ */ #endif /* _LINUX_VIRTIO_CONFIG_H */ |