diff mbox series

[v7,6/9] hw/net: rtl8139: Remove the logic of padding short frames in the receive path

Message ID 20230625015321.77987-7-bmeng@tinylab.org (mailing list archive)
State New, archived
Headers show
Series net: Pad short frames for network backends | expand

Commit Message

Bin Meng June 25, 2023, 1:53 a.m. UTC 
Now that we have implemented unified short frames padding in the
QEMU networking codes, remove the same logic in the NIC codes.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
---

(no changes since v1)

 hw/net/rtl8139.c | 12 ------------
 1 file changed, 12 deletions(-)
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Patch

diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c
index 5f1a4d359b..b4df75b2c9 100644
--- a/hw/net/rtl8139.c
+++ b/hw/net/rtl8139.c
@@ -826,7 +826,6 @@  static ssize_t rtl8139_do_receive(NetClientState *nc, const uint8_t *buf, size_t
 
     uint32_t packet_header = 0;
 
-    uint8_t buf1[MIN_BUF_SIZE + VLAN_HLEN];
     static const uint8_t broadcast_macaddr[6] =
         { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
@@ -938,17 +937,6 @@  static ssize_t rtl8139_do_receive(NetClientState *nc, const uint8_t *buf, size_t
         }
     }
 
-    /* if too small buffer, then expand it
-     * Include some tailroom in case a vlan tag is later removed. */
-    if (size < MIN_BUF_SIZE + VLAN_HLEN) {
-        memcpy(buf1, buf, size);
-        memset(buf1 + size, 0, MIN_BUF_SIZE + VLAN_HLEN - size);
-        buf = buf1;
-        if (size < MIN_BUF_SIZE) {
-            size = MIN_BUF_SIZE;
-        }
-    }
-
     if (rtl8139_cp_receiver_enabled(s))
     {
         if (!rtl8139_cp_rx_valid(s)) {