Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752126AbdFMHxW (ORCPT ); Tue, 13 Jun 2017 03:53:22 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:44728 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751753AbdFMHxU (ORCPT ); Tue, 13 Jun 2017 03:53:20 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org C1C1E60724 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=kvalo@codeaurora.org From: Kalle Valo To: Caesar Wang Cc: amitkarwar@gmail.com, huxm@marvell.com, nishants@marvell.com, gbhat@marvell.com, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, briannorris@chromium.org, jeffy.chen@rock-chips.com Subject: Re: [PATCH] mwifiex: fixes the trivial print References: <1497008411-15223-1-git-send-email-wxt@rock-chips.com> <87poe8pfjs.fsf@purkki.adurom.net> <87mv9c74hn.fsf@kamboji.qca.qualcomm.com> <2eb9e680-64bc-a74d-f224-b6e13dd3b45b@rock-chips.com> Date: Tue, 13 Jun 2017 10:53:14 +0300 In-Reply-To: <2eb9e680-64bc-a74d-f224-b6e13dd3b45b@rock-chips.com> (Caesar Wang's message of "Tue, 13 Jun 2017 15:42:15 +0800") Message-ID: <87ink0728l.fsf@kamboji.qca.qualcomm.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mail.home.local id v5D7rRm1020759 Content-Length: 3791 Lines: 109 Caesar Wang writes: > 在 2017年06月13日 15:04, Kalle Valo 写道: >> Caesar Wang writes: >> >>> Kalle, >>> >>> 在 2017年06月13日 14:28, Kalle Valo 写道: >>>> Caesar Wang writes: >>>> >>>>> 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 >>>>> --- >>>>> >>>>> 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); >>>> I don't see how this fixes anything, care to explain? And the title is >>>> quite vague. >>> Sorry for the description maybe unclear. >>> I'm assuming the print log is expected for marvel wifi driver. Do we >>> should use 'WARN' to instead of the 'ERROR' here. >> But does that make any functional difference, isn't the warning still >> printed? >> > > At least, that shouldn't be printed log by default. :) > > if I read the code is correct. That only the MSG/FATAL/ERROR will > output by default. > > /** > *enum mwifiex_debug_level - marvell wifi debug level > */ > enum MWIFIEX_DEBUG_LEVEL { > MWIFIEX_DBG_MSG = 0x00000001, > MWIFIEX_DBG_FATAL = 0x00000002, > MWIFIEX_DBG_ERROR = 0x00000004, > MWIFIEX_DBG_DATA = 0x00000008, > MWIFIEX_DBG_CMD = 0x00000010, > MWIFIEX_DBG_EVENT = 0x00000020, > MWIFIEX_DBG_INTR = 0x00000040, > MWIFIEX_DBG_IOCTL = 0x00000080, > > MWIFIEX_DBG_MPA_D = 0x00008000, > MWIFIEX_DBG_DAT_D = 0x00010000, > MWIFIEX_DBG_CMD_D = 0x00020000, > MWIFIEX_DBG_EVT_D = 0x00040000, > MWIFIEX_DBG_FW_D = 0x00080000, > MWIFIEX_DBG_IF_D = 0x00100000, > > MWIFIEX_DBG_ENTRY = 0x10000000, > MWIFIEX_DBG_WARN = 0x20000000, > MWIFIEX_DBG_INFO = 0x40000000, > MWIFIEX_DBG_DUMP = 0x80000000, > > MWIFIEX_DBG_ANY = 0xffffffff > }; > > #define MWIFIEX_DEFAULT_DEBUG_MASK (MWIFIEX_DBG_MSG | \ > MWIFIEX_DBG_FATAL | \ > MWIFIEX_DBG_ERROR) Heh, makes more sense now :) But you still should improve the title and explain in the commit log that WARN level is not printed by default. But before you submit v2 let's wait what Marvell says about this. -- Kalle Valo