linux-kernel - Re: First kernel patch (optimization)

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Message-ID: <CANpvso6xio0VzDeW3rNVjz3kskH73PMaeFoGEfvJccwo7FYHAg@mail.gmail.com>
Date:	Wed, 16 Sep 2015 21:21:58 +0100
From:	Eric Curtin <ericcurtin17@...il.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	Austin S Hemmelgarn <ahferroin7@...il.com>,
	Steve Calfee <stevecalfee@...il.com>,
	Valentina Manea <valentina.manea.m@...il.com>,
	shuah.kh@...sung.com, USB list <linux-usb@...r.kernel.org>,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: First kernel patch (optimization)

On 16 September 2015 at 21:02, Greg KH <gregkh@...uxfoundation.org> wrote:
> On Wed, Sep 16, 2015 at 05:03:39PM +0100, Eric Curtin wrote:
>> Hi Greg,
>>
>> As I said in the subject of the mail (which I have been since told I
>> shouldn't have done this), I'm a noob to kernel code. I tried to pick
>> off something super simple to just see what the process of getting a
>> patch in is. Youtube videos and documentation only get you so far.
>>
>> >From reading your response, should I refrain from sending in these
>> micro-optimizations in future? Getting in smaller patches is easier
>> for me as I only do this in my spare time, which I don't have a lot
>> of!
>
> micro-optimizations are great, if you can actually measure them and they
> matter :)
>
> If you are looking for someplace to start, might I recommend the
> drivers/staging/ directory?  I take all sorts of "basic" cleanup
> patches, and there are loads of things to do in there.  Look at the
> drivers/staging/*/TODO files for specific examples of what needs to be
> done to get these files cleaned up and fixed properly.
>
> Hope this helps,
>
> greg k-h

I have realized this now after reading
http://kernelnewbies.org/FirstKernelPatch, should have done a bit more
reading before I submitted something. I'm looking at the
drivers/staging/android stuff now.

Eric Curtin
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