Hello Paolo,
+-- On Wed, 21 Sep 2016, Paolo Bonzini wrote --+
| Not exactly, because addr changes on every call to mcf_fec_read_bd.
True, but the initial address 's->tx_descriptor' and 's->etdsr' could be set
by user in imx_fec_write(). If bd.flags is set to FEC_BD_W, addr is reset to
initi
On 21/09/2016 19:50, P J P wrote:
> +-- On Wed, 21 Sep 2016, Paolo Bonzini wrote --+
> | On 21/09/2016 15:45, P J P wrote:
> | > DPRINTF("tx_bd %x flags %04x len %d data %08x\n",
> | > addr, bd.flags, bd.length, bd.data);
> | > -if ((bd.flags & FEC_BD_R) == 0) {
+-- On Wed, 21 Sep 2016, Paolo Bonzini wrote --+
| On 21/09/2016 15:45, P J P wrote:
| > DPRINTF("tx_bd %x flags %04x len %d data %08x\n",
| > addr, bd.flags, bd.length, bd.data);
| > -if ((bd.flags & FEC_BD_R) == 0) {
| > +if (!bd.length || (bd.flags & FEC
On 21/09/2016 15:45, P J P wrote:
> DPRINTF("tx_bd %x flags %04x len %d data %08x\n",
> addr, bd.flags, bd.length, bd.data);
> -if ((bd.flags & FEC_BD_R) == 0) {
> +if (!bd.length || (bd.flags & FEC_BD_R) == 0) {
> /* Run out of descriptors t
From: Prasad J Pandit
ColdFire Fast Ethernet Controller uses buffer descriptors to manage
data flow to/fro receive & transmit queues. While transmitting
packets, it could continue to read buffer descriptors if a buffer
descriptor has length of zero. Add check to avoid it.
Reported-by: Li Qiang
