| Message ID | fb6dc2fc63561e73ecd62286a2703883e31fd394.1576286757.git.fthain@telegraphics.com.au (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Fixes for DP8393X SONIC device emulation | expand |
Hi Finn, On 12/14/19 2:25 AM, Finn Thain wrote: > This function re-uses its 'size' argument as a scratch variable. > Instead, declare a local 'size' variable for that purpose so that the > function result doesn't get messed up. > > Signed-off-by: Finn Thain <fthain@telegraphics.com.au> > --- > hw/net/dp8393x.c | 9 +++++---- > 1 file changed, 5 insertions(+), 4 deletions(-) > > diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c > index 3fd59bc1d4..462f8646e0 100644 > --- a/hw/net/dp8393x.c > +++ b/hw/net/dp8393x.c > @@ -741,20 +741,21 @@ static int dp8393x_receive_filter(dp8393xState *s, const uint8_t * buf, > } > > static ssize_t dp8393x_receive(NetClientState *nc, const uint8_t * buf, > - size_t size) > + size_t pkt_size) > { > dp8393xState *s = qemu_get_nic_opaque(nc); > int packet_type; > uint32_t available, address; > - int width, rx_len = size; > + int width, rx_len = pkt_size; I'm tempted to remove rx_len and use pkt_size, pkt_size + sizeof(checksum) in place. Anyway: Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> > uint32_t checksum; > + int size; > > width = (s->regs[SONIC_DCR] & SONIC_DCR_DW) ? 2 : 1; > > s->regs[SONIC_RCR] &= ~(SONIC_RCR_PRX | SONIC_RCR_LBK | SONIC_RCR_FAER | > SONIC_RCR_CRCR | SONIC_RCR_LPKT | SONIC_RCR_BC | SONIC_RCR_MC); > > - packet_type = dp8393x_receive_filter(s, buf, size); > + packet_type = dp8393x_receive_filter(s, buf, pkt_size); > if (packet_type < 0) { > DPRINTF("packet not for netcard\n"); > return -1; > @@ -848,7 +849,7 @@ static ssize_t dp8393x_receive(NetClientState *nc, const uint8_t * buf, > /* Done */ > dp8393x_update_irq(s); > > - return size; > + return pkt_size; > } > > static void dp8393x_reset(DeviceState *dev) >
diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c index 3fd59bc1d4..462f8646e0 100644 --- a/hw/net/dp8393x.c +++ b/hw/net/dp8393x.c @@ -741,20 +741,21 @@ static int dp8393x_receive_filter(dp8393xState *s, const uint8_t * buf, } static ssize_t dp8393x_receive(NetClientState *nc, const uint8_t * buf, - size_t size) + size_t pkt_size) { dp8393xState *s = qemu_get_nic_opaque(nc); int packet_type; uint32_t available, address; - int width, rx_len = size; + int width, rx_len = pkt_size; uint32_t checksum; + int size; width = (s->regs[SONIC_DCR] & SONIC_DCR_DW) ? 2 : 1; s->regs[SONIC_RCR] &= ~(SONIC_RCR_PRX | SONIC_RCR_LBK | SONIC_RCR_FAER | SONIC_RCR_CRCR | SONIC_RCR_LPKT | SONIC_RCR_BC | SONIC_RCR_MC); - packet_type = dp8393x_receive_filter(s, buf, size); + packet_type = dp8393x_receive_filter(s, buf, pkt_size); if (packet_type < 0) { DPRINTF("packet not for netcard\n"); return -1; @@ -848,7 +849,7 @@ static ssize_t dp8393x_receive(NetClientState *nc, const uint8_t * buf, /* Done */ dp8393x_update_irq(s); - return size; + return pkt_size; } static void dp8393x_reset(DeviceState *dev)
This function re-uses its 'size' argument as a scratch variable. Instead, declare a local 'size' variable for that purpose so that the function result doesn't get messed up. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> --- hw/net/dp8393x.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)