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From 421ba82c676b21f706f9e26d24c8c2596810e599 Mon Sep 17 00:00:00 2001
From: Caesar Wang <wxt@rock-chips.com>
Date: Wed, 14 Jun 2017 19:06:56 +0800
Subject: [PATCH] mwifiex: fixes the unexpected be printed log by default
Git-commit: 421ba82c676b21f706f9e26d24c8c2596810e599
Patch-mainline: v4.13-rc1
References: FATE#326294

This patch uses WARN level is not printed by default.

In some cases, some boards have always met the unused log be printed as
follows.
...
[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

Due to we used the 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)

Also, as the commit 1b499cb72f26b
("mwifiex: disable channel filtering feature in firmware"), it proved to
be a feature to get better scan result from overlapping channel.

Even there could be AP from overlapping channel (might be 12/13/14
in this case), it will be filtered depend on reg domain rules.
E.g: 
...
if (ch->flags & IEEE80211_CHAN_DISABLED)
        continue;

So it should not been an ERROR, use the WARN level to instead it for now.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Acked-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 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 1ff22055e54f..6e2994308526 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);
-- 
2.19.2