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Commit 7f31fe05 authored by Christian Borntraeger's avatar Christian Borntraeger Committed by Rusty Russell
Browse files

virtio_config: fix len calculation of config elements 



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: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 52a3a05f

include/linux/virtio_config.h

+1 −1
Original line number Diff line number Diff line
@@ -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,