Received-SPF: pass (google.com: domain of linux-kernel+bounces-196485-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249;
Message-ID: <7bed5792-db9d-3bc8-5325-7333076822e9@ti.com>
Date: Fri, 31 May 2024 14:06:13 +0530
Precedence: bulk
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.11.0
Subject: Re: [PATCH v10 06/11] math.h: Add macros for rounding to closest
 value
Content-Language: en-US
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CC: <mchehab@kernel.org>, <hverkuil-cisco@xs4all.nl>,
        <linux-media@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <benjamin.gaignard@collabora.com>, <sebastian.fricke@collabora.com>,
        <akpm@linux-foundation.org>, <gregkh@linuxfoundation.org>,
        <adobriyan@gmail.com>, <jani.nikula@intel.com>,
        <p.zabel@pengutronix.de>, <airlied@gmail.com>, <daniel@ffwll.ch>,
        <dri-devel@lists.freedesktop.org>, <laurent.pinchart@ideasonboard.com>,
        <praneeth@ti.com>, <nm@ti.com>, <vigneshr@ti.com>, <a-bhatia1@ti.com>,
        <j-luthra@ti.com>, <b-brnich@ti.com>, <detheridge@ti.com>,
        <p-mantena@ti.com>, <vijayp@ti.com>, <andrzej.p@collabora.com>,
        <nicolas@ndufresne.ca>, <davidgow@google.com>, <dlatypov@google.com>
References: <20240530165925.2715837-1-devarsht@ti.com>
 <20240530171225.2749312-1-devarsht@ti.com>
 <ZljRSXtXWdOyCJaB@smile.fi.intel.com>
From: Devarsh Thakkar <devarsht@ti.com>
In-Reply-To: <ZljRSXtXWdOyCJaB@smile.fi.intel.com>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit

Hi Andy,

Thanks for the review.

On 31/05/24 00:49, Andy Shevchenko wrote:
> On Thu, May 30, 2024 at 10:42:25PM +0530, Devarsh Thakkar wrote:
>> Add below rounding related macros:
>>
>> round_closest_up(x, y) : Rounds x to closest multiple of y where y is a
>> power of 2, with a preference to round up in case two nearest values are
>> possible.
>>
>> round_closest_down(x, y) : Rounds x to closest multiple of y where y is a
>> power of 2, with a preference to round down in case two nearest values are
>> possible.
>>
>> roundclosest(x, y) : Rounds x to closest multiple of y, this macro should
>> generally be used only when y is not multiple of 2 as otherwise
>> round_closest* macros should be used which are much faster.
>>
>> Examples:
>>  * round_closest_up(17, 4) = 16
>>  * round_closest_up(15, 4) = 16
>>  * round_closest_up(14, 4) = 16
>>  * round_closest_down(17, 4) = 16
>>  * round_closest_down(15, 4) = 16
>>  * round_closest_down(14, 4) = 12
>>  * roundclosest(21, 5) = 20
>>  * roundclosest(19, 5) = 20
>>  * roundclosest(17, 5) = 15
> 
> ...
> 
>> + * Examples :
> 
> It's inconsistent with the other one below.
> 
>> + * 	round_closest_up(17, 4) = 16
>> + *
>> + * 	round_closest_up(15, 4) = 16
>> + *
>> + * 	round_closest_up(14, 4) = 16
> 
> The three have TABs/spaces mixture.
> 
> I believe you wanted:
> 
>  * Examples::
>  * * round_closest_up(17, 4) = 16
>  * * round_closest_up(15, 4) = 16
>  * * round_closest_up(14, 4) = 16
> 

I initially referred the style from this link [1] but probably missed to
remove extra space from my patch.

But what you suggested looks better, I will go with what you suggested.

[1]  https://elixir.bootlin.com/linux/v6.9/source/include/linux/int_log.h#L22

Regards
Devarsh