linux-kernel - Re: + checkpatch-add-check-for-use-of-sizeof-without-parenthesis.patch added to -mm tree

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Message-ID: <alpine.DEB.2.00.1207091514310.32082@chino.kir.corp.google.com>
Date:	Mon, 9 Jul 2012 15:23:16 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	linux-kernel@...r.kernel.org
cc:	mm-commits@...r.kernel.org, joe@...ches.com, apw@...onical.com
Subject: Re: + checkpatch-add-check-for-use-of-sizeof-without-parenthesis.patch
 added to -mm tree

On Mon, 9 Jul 2012, akpm@...ux-foundation.org wrote:

> From: Joe Perches <joe@...ches.com>
> Subject: checkpatch: Add acheck for use of sizeof without parenthesis
> 
> Kernel style uses parenthesis around sizeof.
> 

Nack, there's a difference between "sizeof *task" and 
"sizeof(struct task_struct)".  The former operates on a unary expression 
and the latter operates on a type.  There are over 1000 occurrences in the 
kernel where the sizeof operator, the former, is used on a unary 
expression.
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