netdev - Re: [PATCH RESEND] sctp: fix incorrect overflow check on autoclose

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Message-Id: <8EEC521A-CA38-4CE9-BCFD-BA6FC9A85D18@gmail.com>
Date:	Fri, 9 Dec 2011 13:04:34 -0500
From:	Xi Wang <xi.wang@...il.com>
To:	Vladislav Yasevich <vladislav.yasevich@...com>
Cc:	netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andrei Pelinescu-Onciul <andrei@...el.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH RESEND] sctp: fix incorrect overflow check on autoclose

On Dec 9, 2011, at 12:38 PM, Vladislav Yasevich wrote:
> I think this should be u32 since that's what sp->autoclose is.

Do you mean something like this?

	min_t(u32, sp->autoclose, MAX_SCHEDULE_TIMEOUT / HZ)

On 64-bit platform this would limit autoclose for no good
reason to

	(u32)(MAX_SCHEDULE_TIMEOUT / HZ),

which is basically 0x978d4fdf (assuming HZ is 250).  I guess the
intention was to allow autoclose to be any u32 on 64-bit platform.

- xi
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