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virtio_config: fix len calculation of config elements

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Rusty,

This patch is a prereq for the virtio_blk blocksize patch, please apply it
first.

Adding an u32 value to the virtio_blk_config unconvered a small bug the config
space defintions:
v is a pointer, to we have to use sizeof(*v) instead of sizeof(v).

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Christian Borntraeger 2008-05-29 11:08:01 +02:00 committed by Rusty Russell
parent 52a3a05f3a
commit 7f31fe0500
1 changed files with 1 additions and 1 deletions
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2
include/linux/virtio_config.h
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@ -99,7 +99,7 @@ static inline bool virtio_has_feature(const struct virtio_device *vdev,
* The return value is -ENOENT if the feature doesn't exist. Otherwise
* the config value is copied into whatever is pointed to by v. */
#define virtio_config_val(vdev, fbit, offset, v) \
virtio_config_buf((vdev), (fbit), (offset), (v), sizeof(v))
virtio_config_buf((vdev), (fbit), (offset), (v), sizeof(*v))
static inline int virtio_config_buf(struct virtio_device *vdev,
unsigned int fbit,