We have always met the unused log be printed as following. ... [23193.523182] mwifiex_pcie 0000:01:00.0: mwifiex_get_cfp: cannot find cfp by band 2 & channel=13 freq=0 [23378.633684] mwifiex_pcie 0000:01:00.0: mwifiex_get_cfp: cannot find cfp by band 2 & channel=13 freq=0 Maybe that's related to wifi regdom, since wifi default area was US and didn't support 12~14 channels. As Frequencies: * 2412 MHz [1] (30.0 dBm) * 2417 MHz [2] (30.0 dBm) * 2422 MHz [3] (30.0 dBm) * 2427 MHz [4] (30.0 dBm) * 2432 MHz [5] (30.0 dBm) * 2437 MHz [6] (30.0 dBm) * 2442 MHz [7] (30.0 dBm) * 2447 MHz [8] (30.0 dBm) * 2452 MHz [9] (30.0 dBm) * 2457 MHz [10] (30.0 dBm) * 2462 MHz [11] (30.0 dBm) * 2467 MHz [12] (disabled) * 2472 MHz [13] (disabled) * 2484 MHz [14] (disabled) Signed-off-by: Caesar Wang <wxt@xxxxxxxxxxxxxx> --- drivers/net/wireless/marvell/mwifiex/cfp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/marvell/mwifiex/cfp.c b/drivers/net/wireless/marvell/mwifiex/cfp.c index 1ff2205..6e29943 100644 --- a/drivers/net/wireless/marvell/mwifiex/cfp.c +++ b/drivers/net/wireless/marvell/mwifiex/cfp.c @@ -350,7 +350,7 @@ mwifiex_get_cfp(struct mwifiex_private *priv, u8 band, u16 channel, u32 freq) } } if (i == sband->n_channels) { - mwifiex_dbg(priv->adapter, ERROR, + mwifiex_dbg(priv->adapter, WARN, "%s: cannot find cfp by band %d\t" "& channel=%d freq=%d\n", __func__, band, channel, freq); -- 2.7.4