diff options
| author | Marcel Holtmann <marcel@holtmann.org> | 2022-12-22 21:36:48 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-01-11 10:44:35 +0100 |
| commit | 86e61e4233b8de44805914475669c0ca906809c0 (patch) | |
| tree | 6a0fc523928d2f2baf9d21cd93da490e719da9b7 /subprojects | |
| parent | 85899f8e6b3c4dae924a550778a8f594ecc37b33 (diff) | |
libvduse: Fix assignment in vring_set_avail_event
Since the assignment is causing a compiler warning, fix it by using
memcpy instead.
CC libvduse.o
libvduse.c: In function ‘vring_set_avail_event’:
libvduse.c:603:7: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasin]
603 | *((uint16_t *)&vq->vring.used->ring[vq->vring.num]) = htole16(val);
| ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Suggested-by: Xie Yongji <xieyongji@bytedance.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <4a0fe2a6436464473119fdbf0bc4076b36fbb37f.1671741278.git.marcel@holtmann.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'subprojects')
| -rw-r--r-- | subprojects/libvduse/libvduse.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/subprojects/libvduse/libvduse.c b/subprojects/libvduse/libvduse.c index 338ad5e352..377959a0b4 100644 --- a/subprojects/libvduse/libvduse.c +++ b/subprojects/libvduse/libvduse.c @@ -582,7 +582,8 @@ void vduse_queue_notify(VduseVirtq *vq) static inline void vring_set_avail_event(VduseVirtq *vq, uint16_t val) { - *((uint16_t *)&vq->vring.used->ring[vq->vring.num]) = htole16(val); + uint16_t val_le = htole16(val); + memcpy(&vq->vring.used->ring[vq->vring.num], &val_le, sizeof(uint16_t)); } static bool vduse_queue_map_single_desc(VduseVirtq *vq, unsigned int *p_num_sg, |