On 2019/8/27 下午11:20, Matej Genci wrote: > 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 <[email protected]> > --- > 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));
It's better to let the code pass checkpath.pl here. Other looks good. Thanks > + 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)
