Date: Tue, 28 Jul 2009 18:09:43 +0400 (MSD) From: Eygene Ryabinkin <rea-fbsd@codelabs.ru> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/137213: [patch][cleanup] eliminate wrong usages of (S)LIST_HEAD_INITIALIZER macro Message-ID: <20090728140943.38D05DA81D@void.codelabs.ru> Resent-Message-ID: <200907281410.n6SEA1nE007810@freefall.freebsd.org>
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>Number: 137213
>Category: kern
>Synopsis: [patch][cleanup] eliminate wrong usages of (S)LIST_HEAD_INITIALIZER macro
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Jul 28 14:10:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator: Eygene Ryabinkin
>Release: FreeBSD 8.0-BETA1 amd64
>Organization:
Code Labs
>Environment:
System: FreeBSD 8.0-BETA1 amd64
>Description:
Some pieces of the kernel use
-----
LIST_HEAD(listhead, entry) head =
LIST_HEAD_INITIALIZER(&head);
-----
instead of
-----
LIST_HEAD(listhead, entry) head =
LIST_HEAD_INITIALIZER(head);
-----
>From the functional point of view, this change is no-op for the
current queue.h implementation, since LIST_HEAD_INITIALIZER
just returns '{NULL}' and its argument is unused. But it is good
to have semantically-correct code.
>How-To-Repeat:
-----
cd /usr/src/sys; grep -r 'LIST_HEAD_INITIALIZER(&' *
man LIST_HEAD_INITIALIZER
-----
>Fix:
The following patch changes all occurrences I had found
within the kernel.
--- proper-argument-to-LIST_HEAD_INITIALIZER.diff begins here ---
begin 644 proper-argument-to-LIST_HEAD_INITIALIZER.diff
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`
end
--- proper-argument-to-LIST_HEAD_INITIALIZER.diff ends here ---
>Release-Note:
>Audit-Trail:
>Unformatted:
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