Re: [PATCH] staging: media: davinci_vpfe: Remove variable vpfe_dev

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On Fri, May 31, 2019 at 02:39:23AM +0530, Nishka Dasgupta wrote:
> On 31/05/19 2:25 AM, Greg KH wrote:
> > On Fri, May 31, 2019 at 02:17:18AM +0530, Nishka Dasgupta wrote:
> > > Remove variable vpfe_dev and replace it with its value (since the
> > > function otherwise uses values directly instead of local variables).
> > 
> > This says _what_ you do.  But we can see that in the patch itself.
> > 
> > You need to say _why_ you are doing this.
> > 
> > There's no need for this change at all.  Again, as I have said before,
> > we write code for developers to read first, the compiler second.  By
> > making these types of changes you are making it harder to
> > read/understand by a developer, and providing absolutely no benifit to
> > the compiler at all.
> > 
> > So it's actually making the code worse!
> > 
> > not good at all.
> > 
> > Please reconsider this type of change, as I keep asking you to.
> 
> Okay. In this case I thought it wouldn't make it worse since the function is
> low on local variables anyway? Clearly I was wrong, so I won't count this
> case as an exception in future.

Did you check the object file output to verify this?  Try it and see :)




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