linux-kernel - Re: [PATCH 04/29] memstick: core: rework state machines

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Message-ID: <381457.73980.qm@web37607.mail.mud.yahoo.com>
Date:	Mon, 25 Oct 2010 08:01:26 -0700 (PDT)
From:	Alex Dubov <oakad@...oo.com>
To:	Maxim Levitsky <maximlevitsky@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Maxim Levitsky <maximlevitsky@...il.com>
Subject: Re: [PATCH 04/29] memstick: core: rework state machines

--- On Fri, 22/10/10, Maxim Levitsky <maximlevitsky@...il.com> wrote:

> From: Maxim Levitsky <maximlevitsky@...il.com>
> Subject: [PATCH 04/29] memstick: core: rework state machines
> To: "Alex Dubov" <oakad@...oo.com>
> Cc: "Andrew Morton" <akpm@...ux-foundation.org>, "LKML" <linux-kernel@...r.kernel.org>, "Maxim Levitsky" <maximlevitsky@...il.com>
> Received: Friday, 22 October, 2010, 4:53 PM
> Make state machines in memstick core
> follow the
> new style.
> 

1. This is an important functional patch. At present, "new style" exists
only in your head. You should make an effort to justify it to everybody
else by providing a rationale in patch description.

2. You are using an integer state variable (instead of function pointers
which were self-describing by virtue of the referred function names).
Please, define an enumerated type for this state variable, giving states
human-readable, descriptive names. If you need to do state variable
arithmetic, you can provide a couple of simple, descriptive macros to
do so:

#define NEXT_STATE(s) (s + 1)

or something along the line.

3. Coding style.

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