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From: Andrew Morton <akpm@linux-foundation.org>
To: eric miao <eric.y.miao@gmail.com>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
	linux-fbdev-devel@lists.sourceforge.net,
	linux-arm-kernel email list
	<linux-arm-kernel@lists.arm.linux.org.uk>,
	Daniel Mack <daniel@caiaq.de>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 4/4] pxafb: preliminary smart panel interface support
Date: Tue, 8 Apr 2008 01:23:59 -0700	[thread overview]
Message-ID: <20080408012359.d0a7d0c8.akpm@linux-foundation.org> (raw)
In-Reply-To: <f17812d70804072107k77c2642ah23c8f2ce9535159f@mail.gmail.com>

On Tue, 8 Apr 2008 12:07:27 +0800 "eric miao" <eric.y.miao@gmail.com> wrote:

> +static int pxafb_smart_thread(void *arg)
> +{
> +	struct pxafb_info *fbi = (struct pxafb_info *) arg;

Please don't typecast when assigning a pointer to or from void*.

Reasons:

- It defeats typechecking: if someone later converts `arg' to a u8, they
  won't even get a compiler warning.

- Improved code readability.


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WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: "eric miao" <eric.y.miao@gmail.com>
Cc: "linux-arm-kernel email list" 
	<linux-arm-kernel@lists.arm.linux.org.uk>,
	linux-fbdev-devel@lists.sourceforge.net,
	lkml <linux-kernel@vger.kernel.org>,
	"Russell King - ARM Linux" <linux@arm.linux.org.uk>,
	"Daniel Mack" <daniel@caiaq.de>
Subject: Re: [PATCH 4/4] pxafb: preliminary smart panel interface support
Date: Tue, 8 Apr 2008 01:23:59 -0700	[thread overview]
Message-ID: <20080408012359.d0a7d0c8.akpm@linux-foundation.org> (raw)
In-Reply-To: <f17812d70804072107k77c2642ah23c8f2ce9535159f@mail.gmail.com>

On Tue, 8 Apr 2008 12:07:27 +0800 "eric miao" <eric.y.miao@gmail.com> wrote:

> +static int pxafb_smart_thread(void *arg)
> +{
> +	struct pxafb_info *fbi = (struct pxafb_info *) arg;

Please don't typecast when assigning a pointer to or from void*.

Reasons:

- It defeats typechecking: if someone later converts `arg' to a u8, they
  won't even get a compiler warning.

- Improved code readability.


  reply	other threads:[~2008-04-08  8:24 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-08  4:07 [PATCH 4/4] pxafb: preliminary smart panel interface support eric miao
2008-04-08  4:07 ` eric miao
2008-04-08  8:23 ` Andrew Morton [this message]
2008-04-08  8:23   ` Andrew Morton
2008-04-08  8:34   ` eric miao
2008-04-08  8:34     ` eric miao
2008-04-08  9:16     ` Russell King - ARM Linux
2008-04-08  9:47       ` eric miao
2008-04-08  9:47         ` eric miao

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