linux-kernel - Re: [dm-devel] [PATCH linux-next] DM RAID: validate_raid_redundancy: Silence uninitialized variable warning

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Message-ID: <20130221131931.GA29577@agk-dp.fab.redhat.com>
Date:	Thu, 21 Feb 2013 13:19:31 +0000
From:	Alasdair G Kergon <agk@...hat.com>
To:	Tim Gardner <tim.gardner@...onical.com>
Cc:	linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org,
	dm-devel@...hat.com, Alasdair Kergon <agk@...hat.com>
Subject: Re: [dm-devel] [PATCH linux-next] DM RAID:
	validate_raid_redundancy: Silence uninitialized variable warning

On Wed, Feb 20, 2013 at 01:31:18PM -0700, Tim Gardner wrote:
> drivers/md/dm-raid.c: In function 'raid_ctr':
> drivers/md/dm-raid.c:453:53: warning: 'rebuilds_per_group' may be used uninitialized in this function [-Wuninitialized]
> drivers/md/dm-raid.c:383:11: note: 'rebuilds_per_group' was declared here
 
> It appears unlikely that rebuilds_per_group could be used before set, but set
> it to 0 anyways just to shutup GCC.

Looks bogus to me.
uninitialized_var() please.

Alasdair

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