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From: "Michael Büsch" <m@bues.ch>
To: Priit Laes <plaes@plaes.org>
Cc: Kees Cook <keescook@chromium.org>,
	Jia-Ju Bai <baijiaju1990@gmail.com>,
	Kalle Valo <kvalo@codeaurora.org>,
	Larry Finger <Larry.Finger@lwfinger.net>,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>,
	Colin Ian King <colin.king@canonical.com>,
	Arend van Spriel <arend.vanspriel@broadcom.com>,
	Varsha Rao <rvarsha016@gmail.com>,
	linux-wireless@vger.kernel.org, b43-dev@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 3/3] b43: Use cordic algorithm from kernel library
Date: Wed, 14 Nov 2018 19:46:28 +0100	[thread overview]
Message-ID: <20181114194628.0f485637@wiggum> (raw)
In-Reply-To: <d93962cdc5a32fe99e6e5a25172920d28583aa6a.1542219596.git-series.plaes@plaes.org>

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On Wed, 14 Nov 2018 20:27:52 +0200
Priit Laes <plaes@plaes.org> wrote:

> Kernel library has a common cordic algorithm which is identical
> to internally implementatd one, so use it and drop the duplicate
> implementation.


In v2 of the series it has been said that:

Arend van Spriel <arend.vanspriel@broadcom.com> wrote:
> I recall doing a comparison between the algorithms and thought I put 
> that in the original commit message. However, it is not there. It is not 
> exactly the same as in b43 so there are difference for certain angles, 
> most results are the same however. This implementation is slightly more 
> accurate on the full scale.


That's not my definition of "identical".

Please do not apply this patch without doing a thorough regression test
on actual b43 LP hardware.


-- 
Michael

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  reply	other threads:[~2018-11-14 18:48 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-14 18:27 [PATCH v3 0/3] wireless: Use common cordic algorithm for b43 driver Priit Laes
2018-11-14 18:27 ` [PATCH v3 1/3] lib: cordic: Move cordic macros and defines to header file Priit Laes
2018-11-14 18:27 ` [PATCH v3 2/3] brcmsmac: Use cordic-related macros from common cordic library Priit Laes
2018-11-14 18:27 ` [PATCH v3 3/3] b43: Use cordic algorithm from kernel library Priit Laes
2018-11-14 18:46   ` Michael Büsch [this message]
2018-11-17  8:36     ` Priit Laes
2018-11-17 11:06       ` Kalle Valo
2018-11-18  3:31   ` Larry Finger
2018-11-18  8:23     ` Priit Laes
2018-11-18 19:35       ` Larry Finger
2018-11-19 10:43         ` Kalle Valo
2018-11-19 11:14           ` Priit Laes
2018-11-19 17:41           ` Larry Finger
2018-11-19 11:27         ` Priit Laes
2018-11-19 17:40           ` Larry Finger
2018-11-15 11:09 ` [PATCH v3 0/3] wireless: Use common cordic algorithm for b43 driver Kalle Valo

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