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From: Borislav Petkov <bp@alien8.de>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: ipc/shm.c:494:18: warning: unused variable ‘hs’ [-Wunused-variable]
Date: Wed, 8 May 2013 16:34:11 +0200	[thread overview]
Message-ID: <20130508143411.GD30955@pd.tnic> (raw)

Hi,

looks like this warning came in with
af73e4d9506d3b797509f3c030e7dcd554f7d9c4 and fires in the

# CONFIG_HUGETLB_PAGE is not set

case because

	struct hstate *hs = hstate_sizelog((shmflg >> SHM_HUGE_SHIFT)
                                        & SHM_HUGE_MASK);

becomes

	struct hstate *hs = ((void *)0)

due to

#define hstate_sizelog(s) NULL

Hmmm, I don't have a quick solution off the top of my head from staring
at the code.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--

             reply	other threads:[~2013-05-08 14:33 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-08 14:34 Borislav Petkov [this message]
2013-05-08 16:12 ` ipc/shm.c:494:18: warning: unused variable ‘hs’ [-Wunused-variable] Naoya Horiguchi
2013-05-08 18:45   ` Borislav Petkov
2013-05-08 20:48     ` [PATCH] ipc/shm.c: don't use auto variable hs in newseg() Naoya Horiguchi
2013-05-08 20:48       ` Naoya Horiguchi
2013-05-17 20:31       ` KOSAKI Motohiro
2013-05-17 20:31         ` KOSAKI Motohiro
2013-05-18  1:46         ` Naoya Horiguchi
2013-05-18  1:46           ` Naoya Horiguchi

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