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From: "Bjørn Mork" <bjorn@mork.no>
To: Stefani Seibold <stefani@seibold.net>
Cc: linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org,
	oneukum@suse.de, linux-usb@vger.kernel.org
Subject: Re: [PATCH 02/13] code cleanup
Date: Thu, 07 Jun 2012 12:49:49 +0200	[thread overview]
Message-ID: <87vcj3s8fm.fsf@nemi.mork.no> (raw)
In-Reply-To: <1339060906.11583.9.camel@wall-e> (Stefani Seibold's message of "Thu, 07 Jun 2012 11:21:46 +0200")

Stefani Seibold <stefani@seibold.net> writes:

> If it is necessary...

So, why is it necessary for you to change this code *from* the style
recommended by CodingStyle and LDD3?

Quoting from LDD3:

 "Error recovery is sometimes best handled with the goto statement. We
  normally hate to use goto, but in our opinion, this is one situation
  where it is useful. Careful use of goto in error situations can
  eliminate a great deal of complicated, highly-indented, "structured"
  logic. Thus, in the kernel, goto is often used as shown here to deal
  with errors."

> Compacting improves since it will make the code more readable.

No, it does not.  As pointed out, instead of having to follow a single
exit path from each function, your changes makes it necessary to follow
n exit paths.  That does not make the code more readable, and it
contradicts both CodingStyle and LDD3.

Note that I am not stating in any way that those documents contain
absolute truths and that you cannot write your own driver the way you
like.  I do however find it extremely strange that you insist on
changing a coding example to be inconsistent with those documents.
Regardless of whether you agree with them or not, you must see that such
inconsistent guidelines will be a problem for anyone trying to use this
code for learning?


Bjørn

  reply	other threads:[~2012-06-07 10:50 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-07  8:20 [PATCH] fix usb skeleton driver stefani
2012-06-07  8:20 ` [PATCH 01/13] fix wrong label in skel_open stefani
2012-06-13  1:03   ` Greg KH
2012-06-07  8:20 ` [PATCH 02/13] code cleanup stefani
2012-06-07  9:06   ` Bjørn Mork
2012-06-07  9:21     ` Stefani Seibold
2012-06-07 10:49       ` Bjørn Mork [this message]
2012-06-13  1:03         ` Greg KH
2012-06-13  1:02   ` Greg KH
2012-06-13 18:00     ` Stefani Seibold
2012-06-07  8:20 ` [PATCH 03/13] remove dead code stefani
2012-06-07 15:04   ` Oliver Neukum
2012-06-07 19:40     ` Stefani Seibold
2012-06-07  8:20 ` [PATCH 04/13] remove unneeded forward declaration stefani
2012-06-07  8:20 ` [PATCH 05/13] remove pr_err() noise in skel_open stefani
2012-06-07  8:20 ` [PATCH 06/13] Handle a non blocking read without blocking stefani
2012-06-07  8:20 ` [PATCH 07/13] fix flush function stefani
2012-06-07  8:20 ` [PATCH 08/13] add fsync function stefani
2012-06-07  8:20 ` [PATCH 09/13] remove unneeded lock in skel_open stefani
2012-06-07  8:20 ` [PATCH 10/13] fix race in skel_write stefani
2012-06-07  8:20 ` [PATCH 11/13] fix kref usage in skel_open stefani
2012-06-07  8:20 ` [PATCH 12/13] Introduce single user mode stefani
2012-06-13  1:05   ` Greg KH
2012-06-07  8:20 ` [PATCH 13/13] Bump version number and add aditional author stefani
2012-06-07  9:09   ` Bjørn Mork
2012-06-13  1:00     ` Greg KH

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