Invert the status handling logic in smc911x_recv(), to make the function easier to read, no functional change.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Joe Hershberger joe.hershberger@ni.com Cc: Masahiro Yamada yamada.masahiro@socionext.com --- V2: Simplify RX_FIFO_INF_RXSUSED mask handling s@Invest@Invert@ V3: No change V4: No change --- drivers/net/smc911x.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-)
diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c index 07066ce108..2d1a9e0f5a 100644 --- a/drivers/net/smc911x.c +++ b/drivers/net/smc911x.c @@ -352,23 +352,25 @@ static int smc911x_recv(struct eth_device *dev) u32 pktlen, tmplen; u32 status;
- if ((smc911x_reg_read(priv, RX_FIFO_INF) & RX_FIFO_INF_RXSUSED) >> 16) { - status = smc911x_reg_read(priv, RX_STATUS_FIFO); - pktlen = (status & RX_STS_PKT_LEN) >> 16; + status = smc911x_reg_read(priv, RX_FIFO_INF); + if (!(status & RX_FIFO_INF_RXSUSED)) + return 0;
- smc911x_reg_write(priv, RX_CFG, 0); + status = smc911x_reg_read(priv, RX_STATUS_FIFO); + pktlen = (status & RX_STS_PKT_LEN) >> 16;
- tmplen = (pktlen + 3) / 4; - while (tmplen--) - *data++ = smc911x_reg_read(priv, RX_DATA_FIFO); + smc911x_reg_write(priv, RX_CFG, 0);
- if (status & RX_STS_ES) - printf(DRIVERNAME - ": dropped bad packet. Status: 0x%08x\n", - status); - else - net_process_received_packet(net_rx_packets[0], pktlen); - } + tmplen = (pktlen + 3) / 4; + while (tmplen--) + *data++ = smc911x_reg_read(priv, RX_DATA_FIFO); + + if (status & RX_STS_ES) + printf(DRIVERNAME + ": dropped bad packet. Status: 0x%08x\n", + status); + else + net_process_received_packet(net_rx_packets[0], pktlen);
return 0; }