From mboxrd@z Thu Jan  1 00:00:00 1970
From: vinod.koul@intel.com (Vinod Koul)
Date: Wed, 26 Jul 2017 10:30:07 +0530
Subject: [PATCH v2 2/4] dmaengine: Add STM32 MDMA driver
In-Reply-To: <320f8def-19a4-0491-e879-b41815889e15@st.com>
References: <1499343941-6375-1-git-send-email-pierre-yves.mordret@st.com>
 <1499343941-6375-3-git-send-email-pierre-yves.mordret@st.com>
 <20170721075547.GO3053@localhost>
 <ee278ecf-02a3-7799-888a-9590d1105bb3@st.com>
 <20170721095411.GR3053@localhost>
 <3c04c9bf-572d-98a6-ff62-83498bbc7fdf@st.com>
 <20170721171735.GS3053@localhost>
 <320f8def-19a4-0491-e879-b41815889e15@st.com>
Message-ID: <20170726050007.GE3053@localhost>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Mon, Jul 24, 2017 at 09:34:18AM +0000, Pierre Yves MORDRET wrote:
> 
> On 07/21/2017 12:32 PM, Pierre Yves MORDRET wrote:
>  >
>  >
>  > On 07/21/2017 11:54 AM, Vinod Koul wrote:
>  >> On Fri, Jul 21, 2017 at 09:30:00AM +0000, Pierre Yves MORDRET wrote:
>  >>>>> +static enum dma_slave_buswidth stm32_mdma_get_max_width(u32 buf_len, u32 
> tlen)
>  >>>>> +{
>  >>>>> +	enum dma_slave_buswidth max_width = DMA_SLAVE_BUSWIDTH_8_BYTES;
>  >>>>> +
>  >>>>> +	while (((buf_len % max_width) || (tlen < max_width)) &&
>  >>>>> +	       (max_width > DMA_SLAVE_BUSWIDTH_1_BYTE))
>  >>>>> +		max_width = max_width >> 1;
>  >>>>
>  >>>> ok, this is a bit hard to read...
>  >>>
>  >>> This code snippet has already been reworked and optimized. Would you mind to
>  >>> provide me a example with your expectation ? Thanks
>  >>
>  >> Code is optimized yes, but readable no
>  >>
>  >> I would like readability to be improved upon...
>  >>
>  >
>  > gotcha
>  >
> 
> Doest he code snippet below has a better looking for you ?
> 
> 	for (max_width = DMA_SLAVE_BUSWIDTH_8_BYTES;
> 	     max_width > DMA_SLAVE_BUSWIDTH_1_BYTE; max_width >>= 1)
> 		if (((buf_len % max_width) == 0) && (tlen >= max_width))
> 			break;

Am actually not sure :(

Indentation wise it is still a bit messy to follow..

How about:

	for (max_width = DMA_SLAVE_BUSWIDTH_8_BYTES;
			max_width > DMA_SLAVE_BUSWIDTH_1_BYTE;
			max_width >>=1) {
		if (((buf_len % max_width) == 0) && (tlen >= max_width))
			break;
	}

Thanks
-- 
~Vinod