linux-kernel - Re: [PATCH 4/4] Staging: lustre: sparse lock warning fix

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Message-ID: <20150520194243.GG4150@mwanda>
Date:	Wed, 20 May 2015 22:42:43 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	"Dilger, Andreas" <andreas.dilger@...el.com>
Cc:	"open list:STAGING SUBSYSTEM" <devel@...verdev.osuosl.org>,
	Julia Lawall <Julia.Lawall@...6.fr>,
	Adrian Remonda <adrianremonda@...il.com>,
	open list <linux-kernel@...r.kernel.org>,
	"Drokin, Oleg" <oleg.drokin@...el.com>,
	Greg Donald <gdonald@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"moderated list:STAGING - LUSTRE..." <HPDD-discuss@...1.01.org>,
	Joe Perches <joe@...ches.com>
Subject: Re: [PATCH 4/4] Staging: lustre: sparse lock warning fix

In Smatch, it the equivalent warning is turned off by default because
there are too many false positives, but you can enable it with the
--spammy flag.

kchecker --spammy drivers/staging/lustre/lustre/ptlrpc/nrs.c

drivers/staging/lustre/lustre/ptlrpc/nrs.c:512 nrs_resource_put_safe()
warn: 'spin_lock:&nrs->nrs_lock' is sometimes locked here and sometimes unlocked.

regards,
dan carpenter

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