linux-kernel - [PATCH 0/1] delete unnecessary null test on array

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Message-Id: <1407321551-27479-1-git-send-email-Julia.Lawall@lip6.fr>
Date:	Wed,  6 Aug 2014 12:39:10 +0200
From:	Julia Lawall <Julia.Lawall@...6.fr>
To:	linux-kernel@...r.kernel.org
Cc:	kernel-janitors@...r.kernel.org, linux-scsi@...r.kernel.org,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	Adaptec OEM Raid Solutions <aacraid@...ptec.com>
Subject: [PATCH 0/1] delete unnecessary null test on array

Delete NULL test on array.  The complete semantic patch that finds this
problem is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r@
type T;
T [] e;
position p;
@@

(
 e ==@p NULL
|
 e !=@p NULL
|
 !@p e
)

@ disable fld_to_ptr@
expression e;
identifier f;
position r.p;
@@

(
* (e.f) ==@p NULL
|
* (e.f) !=@p NULL
|
* !@p(e.f)
)
// </smpl>

For best results, this semantic patch requires lots of type information,
and should be used with the options --recursive-includes and
--relax-include-path.  This may take a long time to run.

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