linux-kernel - Re: [PATCH v2 6/7] dmaengine: hisilicon: Add dfx feature for hisi dma driver

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Message-ID: <Yt/gg+MpHQD+k5qY@matsya>
Date:   Tue, 26 Jul 2022 18:09:31 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Jie Hai <haijie1@...wei.com>
Cc:     wangzhou1@...ilicon.com, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 6/7] dmaengine: hisilicon: Add dfx feature for hisi
 dma driver

On 26-07-22, 09:43, Jie Hai wrote:
> On 2022/7/21 21:25, Vinod Koul wrote:
> > On 29-06-22, 11:55, Jie Hai wrote:
> > 
> > What does dfx mean in title?
> > 
> Thanks for the question.
> 
> DFX＝"Design for X", I quote its definition as follows:
> The product definition puts forward a list of specific aspects about a
> design that designers need to optimize, for example, product usage,
> functions and features, cost range, and aesthetics. Modern designers even
> need to consider more design objectives because the new design
> characteristics may finally determine the success or failure of a product.
> Design methodologies that consider these new characteristics are called
> design for X (DFX). Specific design methodologies include design for
> reliability (DFR), design for serviceability (DFS), design for supply chain
> (DFSC), design for scalability (DFSc), design for energy efficiency and
> environment (DFEE), design for testability (DFT),and so on.

This would be better to explain in changelog, not many people would be
familiar with these terms...

> 
> For clarity, I've replaced it in v3 with something easier to understand.
> > > This patch adds dump of registers with debugfs for HIP08
> > > and HIP09 DMA driver.
> > > 
> > > Reported-by: kernel test robot <lkp@...el.com>
> > 
> > ?
> > 
> The kernel test robot raised an issue and asked me to modify it and add
> "Reported-by: kernel test robot <lkp@...el.com>" to the commit message, so I
> did, and it was removed in v3.

ok

-- 
~Vinod