Fix follwing gcc warning: drivers/net/ieee802154/ca8210.c:730:10: warning: comparison is always false due to limited range of data type [-Wtype-limits] the variable 'len' is of type u8 and cannot greater than CA8210_SPI_BUF_SIZE , which is 256. Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx> --- drivers/net/ieee802154/ca8210.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c index 0ff5a40..0fe204f 100644 --- a/drivers/net/ieee802154/ca8210.c +++ b/drivers/net/ieee802154/ca8210.c @@ -727,14 +727,6 @@ static void ca8210_rx_done(struct cas_control *cas_ctl) buf = cas_ctl->tx_in_buf; len = buf[1] + 2; - if (len > CA8210_SPI_BUF_SIZE) { - dev_crit( - &priv->spi->dev, - "Received packet len (%d) erroneously long\n", - len - ); - goto finish; - } if (buf[0] & SPI_SYN) { if (priv->sync_command_response) { -- 2.7.0