Messages in this thread Patch in this message | | | From | Matej Genci <> | Subject | [PATCH] virtio: Change typecasts in vring_init() | Date | Tue, 27 Aug 2019 15:20:57 +0000 |
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Compilers such as g++ 7.3 complain about assigning void* variable to a non-void* variable (like struct pointers) and pointer arithmetics on void*.
Signed-off-by: Matej Genci <matej.genci@nutanix.com> --- include/uapi/linux/virtio_ring.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/include/uapi/linux/virtio_ring.h b/include/uapi/linux/virtio_ring.h index 4c4e24c291a5..2c339b9e2923 100644 --- a/include/uapi/linux/virtio_ring.h +++ b/include/uapi/linux/virtio_ring.h @@ -168,10 +168,11 @@ static inline void vring_init(struct vring *vr, unsigned int num, void *p, unsigned long align) { vr->num = num; - vr->desc = p; - vr->avail = p + num*sizeof(struct vring_desc); - vr->used = (void *)(((uintptr_t)&vr->avail->ring[num] + sizeof(__virtio16) - + align-1) & ~(align - 1)); + vr->desc = (struct vring_desc *)p; + vr->avail = (struct vring_avail *)((uintptr_t)p + + num*sizeof(struct vring_desc)); + vr->used = (struct vring_used *)(((uintptr_t)&vr->avail->ring[num] + + sizeof(__virtio16) + align-1) & ~(align - 1)); } static inline unsigned vring_size(unsigned int num, unsigned long align) -- 2.22.0
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