Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=44332f7167dfb1ca04af96a2cff938c5e23433db
Commit: 44332f7167dfb1ca04af96a2cff938c5e23433db
Parent: 6e800af233e0bdf108efb7bd23c11ea6fa34cdeb
Author: Anthony Liguori <[EMAIL PROTECTED]>
AuthorDate: Wed Nov 7 16:31:52 2007 +1100
Committer: Rusty Russell <[EMAIL PROTECTED]>
CommitDate: Mon Nov 12 13:55:12 2007 +1100
virtio: fix vring_init for 64 bits
This patch fixes a typo in vring_init(). This happens to work today in
lguest
because the sizeof(struct vring_desc) is 16 and struct vring contains 3
pointers and an unsigned int so on 32-bit
sizeof(struct vring_desc) == sizeof(struct vring). However, this is no
longer
true on 64-bit where the bug is exposed.
Signed-off-by: Anthony Liguori <[EMAIL PROTECTED]>
Signed-off-by: Rusty Russell <[EMAIL PROTECTED]>
---
include/linux/virtio_ring.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h
index ac69e7b..5b88d21 100644
--- a/include/linux/virtio_ring.h
+++ b/include/linux/virtio_ring.h
@@ -92,8 +92,8 @@ static inline void vring_init(struct vring *vr, unsigned int
num, void *p)
{
vr->num = num;
vr->desc = p;
- vr->avail = p + num*sizeof(struct vring);
- vr->used = p + (num+1)*(sizeof(struct vring) + sizeof(__u16));
+ vr->avail = p + num*sizeof(struct vring_desc);
+ vr->used = p + (num+1)*(sizeof(struct vring_desc) + sizeof(__u16));
}
static inline unsigned vring_size(unsigned int num)
-
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