[PATCH] virtio_config: fix len calculation of config elements

Christian Borntraeger
2008-05-29T09:08:11Z

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>
---
include/linux/virtio_config.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Index: kvm/include/linux/virtio_config.h
===================================================================
--- kvm.orig/include/linux/virtio_config.h
+++ kvm/include/linux/virtio_config.h
@@ -99,7 +99,7 @@ static inline bool virtio_has_feature(co
* 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,