diff mbox series

[PULL,33/50] hw/net/net_rx_pkt: Enforce alignment for eth_header

Message ID 20230523073238.54236-34-jasowang@redhat.com
State New
Headers show
Series [PULL,01/50] e1000e: Fix tx/rx counters | expand

Commit Message

Jason Wang May 23, 2023, 7:32 a.m. UTC 
From: Akihiko Odaki <akihiko.odaki@daynix.com>

eth_strip_vlan and eth_strip_vlan_ex refers to ehdr_buf as struct
eth_header. Enforce alignment for the structure.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hw/net/net_rx_pkt.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/hw/net/net_rx_pkt.c b/hw/net/net_rx_pkt.c
index 6125a06..1de42b4 100644
--- a/hw/net/net_rx_pkt.c
+++ b/hw/net/net_rx_pkt.c
@@ -23,7 +23,10 @@ 
 
 struct NetRxPkt {
     struct virtio_net_hdr virt_hdr;
-    uint8_t ehdr_buf[sizeof(struct eth_header) + sizeof(struct vlan_header)];
+    struct {
+        struct eth_header eth;
+        struct vlan_header vlan;
+    } ehdr_buf;
     struct iovec *vec;
     uint16_t vec_len_total;
     uint16_t vec_len;
@@ -89,7 +92,7 @@  net_rx_pkt_pull_data(struct NetRxPkt *pkt,
     if (pkt->ehdr_buf_len) {
         net_rx_pkt_iovec_realloc(pkt, iovcnt + 1);
 
-        pkt->vec[0].iov_base = pkt->ehdr_buf;
+        pkt->vec[0].iov_base = &pkt->ehdr_buf;
         pkt->vec[0].iov_len = pkt->ehdr_buf_len;
 
         pkt->tot_len = pllen + pkt->ehdr_buf_len;
@@ -120,7 +123,7 @@  void net_rx_pkt_attach_iovec(struct NetRxPkt *pkt,
     assert(pkt);
 
     if (strip_vlan) {
-        pkt->ehdr_buf_len = eth_strip_vlan(iov, iovcnt, iovoff, pkt->ehdr_buf,
+        pkt->ehdr_buf_len = eth_strip_vlan(iov, iovcnt, iovoff, &pkt->ehdr_buf,
                                            &ploff, &tci);
     } else {
         pkt->ehdr_buf_len = 0;
@@ -142,7 +145,7 @@  void net_rx_pkt_attach_iovec_ex(struct NetRxPkt *pkt,
 
     if (strip_vlan) {
         pkt->ehdr_buf_len = eth_strip_vlan_ex(iov, iovcnt, iovoff, vet,
-                                              pkt->ehdr_buf,
+                                              &pkt->ehdr_buf,
                                               &ploff, &tci);
     } else {
         pkt->ehdr_buf_len = 0;