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Subject: Re: What is the license for linux/lib/math/cordic.c?
To:     "ambai.masaki@fujitsu.com" <ambai.masaki@fujitsu.com>,
        "'linux-wireless@vger.kernel.org'" <linux-wireless@vger.kernel.org>
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From:   Larry Finger <Larry.Finger@lwfinger.net>
Message-ID: <afb1b412-a632-f2dc-0b76-52c345c25491@lwfinger.net>
Date:   Fri, 29 Nov 2019 13:59:31 -0600
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On 11/29/19 4:03 AM, ambai.masaki@fujitsu.com wrote:
> Hi,
> 
> What is the license for linux/lib/math/cordic.c?
> 
>>   * Copyright (c) 2011 Broadcom Corporation
>>   *
>>   * Permission to use, copy, modify, and/or distribute this software for any
>>   * purpose with or without fee is hereby granted, provided that the above
>>   * copyright notice and this permission notice appear in all copies.
>>   *
>>   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
>>   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
>>   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
>>   * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
>>   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
>>   * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
>>   * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> I think this license is an ISC license.
> 
>> MODULE_LICENSE("Dual BSD/GPL");
> However, MODULE _ LICENSE declares a different license.
> I don't know which license is correct.
> What licenses are declared in this file?
> 

I am a little confused. If the author(s) declare the license to be "Dual  
BSD/GPL", why do you not believe them?

Larry