commit 8177cdf1781bd9ebc6cc2db5baa570d6fa8d53b1
author Christopher Ferris <cferris@google.com> Mon Aug 03 11:53:55 2020 -0700
committer Christopher Ferris <cferris@google.com> Tue Aug 04 13:50:49 2020 -0700
tree 0e9d89aa921d19b0645ed35677ba562681c64030
parent 7591bb5ee187f6eac38ad310efe05066f79b0c1d

Update to v5.8 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.8

Test: NA
Change-Id: I2231c877589820fc09800a200cf4ac62ba74b04c

libc/kernel/uapi/linux/virtio_ring.h

diff --git a/libc/kernel/uapi/linux/virtio_ring.h b/libc/kernel/uapi/linux/virtio_ring.h
index ba75940..24cf671 100644
--- a/libc/kernel/uapi/linux/virtio_ring.h
+++ b/libc/kernel/uapi/linux/virtio_ring.h
@@ -34,6 +34,9 @@
 #define VRING_PACKED_EVENT_F_WRAP_CTR 15
 #define VIRTIO_RING_F_INDIRECT_DESC 28
 #define VIRTIO_RING_F_EVENT_IDX 29
+#define VRING_AVAIL_ALIGN_SIZE 2
+#define VRING_USED_ALIGN_SIZE 4
+#define VRING_DESC_ALIGN_SIZE 16
 struct vring_desc {
   __virtio64 addr;
   __virtio32 len;
@@ -49,22 +52,25 @@
   __virtio32 id;
   __virtio32 len;
 };
+typedef struct vring_used_elem __attribute__((aligned(VRING_USED_ALIGN_SIZE))) vring_used_elem_t;
 struct vring_used {
   __virtio16 flags;
   __virtio16 idx;
-  struct vring_used_elem ring[];
+  vring_used_elem_t ring[];
 };
+typedef struct vring_desc __attribute__((aligned(VRING_DESC_ALIGN_SIZE))) vring_desc_t;
+typedef struct vring_avail __attribute__((aligned(VRING_AVAIL_ALIGN_SIZE))) vring_avail_t;
+typedef struct vring_used __attribute__((aligned(VRING_USED_ALIGN_SIZE))) vring_used_t;
 struct vring {
   unsigned int num;
-  struct vring_desc * desc;
-  struct vring_avail * avail;
-  struct vring_used * used;
+  vring_desc_t * desc;
+  vring_avail_t * avail;
+  vring_used_t * used;
 };
-#define VRING_AVAIL_ALIGN_SIZE 2
-#define VRING_USED_ALIGN_SIZE 4
-#define VRING_DESC_ALIGN_SIZE 16
+#ifndef VIRTIO_RING_NO_LEGACY
 #define vring_used_event(vr) ((vr)->avail->ring[(vr)->num])
 #define vring_avail_event(vr) (* (__virtio16 *) & (vr)->used->ring[(vr)->num])
+#endif
 struct vring_packed_desc_event {
   __le16 off_wrap;
   __le16 flags;