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hw/net: Make NetCanReceive() return a boolean

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The NetCanReceive handler return whether the device can or
can not receive new packets. Make it obvious by returning
a boolean type.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2020-03-05 18:56:49 +01:00 • committed by Jason Wang
parent 3317db7439
commit b8c4b67e3e
20 changed files with 45 additions and 48 deletions
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8
hw/net/rtl8139.c
View file

@ -793,23 +793,23 @@ static bool rtl8139_cp_rx_valid(RTL8139State *s)
return !(s->RxRingAddrLO == 0 && s->RxRingAddrHI == 0);
}
static int rtl8139_can_receive(NetClientState *nc)
static bool rtl8139_can_receive(NetClientState *nc)
{
RTL8139State *s = qemu_get_nic_opaque(nc);
int avail;
/* Receive (drop) packets if card is disabled. */
if (!s->clock_enabled) {
return 1;
return true;
}
if (!rtl8139_receiver_enabled(s)) {
return 1;
return true;
}
if (rtl8139_cp_receiver_enabled(s) && rtl8139_cp_rx_valid(s)) {
/* ??? Flow control not implemented in c+ mode.
This is a hack to work around slirp deficiencies anyway. */
return 1;
return true;
}
avail = MOD2(s->RxBufferSize + s->RxBufPtr - s->RxBufAddr,