commit 05db4476c5d25e437d807175de9f862bf5bf732c
author Bin Meng <bmeng@tinylab.org> Sun Jun 25 09:53:16 2023 +0800
committer Jason Wang <jasowang@redhat.com> Fri Jul 07 16:35:12 2023 +0800
tree a9d656dce9401c430f2a0dd7d1fa5f153c623c64
parent c58da33f2f8410b6f22cd1d33377dadf3a4d8867

hw/net: ne2000: Remove the logic of padding short frames in the receive path

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>
Signed-off-by: Jason Wang <jasowang@redhat.com>

hw/net/ne2000.c

diff --git a/hw/net/ne2000.c b/hw/net/ne2000.c
index 3f31d04..d79c884 100644
--- a/hw/net/ne2000.c
+++ b/hw/net/ne2000.c
@@ -167,15 +167,12 @@
     return 0;
 }
 
-#define MIN_BUF_SIZE 60
-
 ssize_t ne2000_receive(NetClientState *nc, const uint8_t *buf, size_t size_)
 {
     NE2000State *s = qemu_get_nic_opaque(nc);
     size_t size = size_;
     uint8_t *p;
     unsigned int total_len, next, avail, len, index, mcast_idx;
-    uint8_t buf1[60];
     static const uint8_t broadcast_macaddr[6] =
         { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
@@ -213,15 +210,6 @@
         }
     }
 
-
-    /* if too small buffer, then expand it */
-    if (size < MIN_BUF_SIZE) {
-        memcpy(buf1, buf, size);
-        memset(buf1 + size, 0, MIN_BUF_SIZE - size);
-        buf = buf1;
-        size = MIN_BUF_SIZE;
-    }
-
     index = s->curpag << 8;
     if (index >= NE2000_PMEM_END) {
         index = s->start;