linux-kernel - Re: [PATCH] Gigabit Ethernet driver of Topcliff PCH

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Message-ID: <20100908075545.79023fa9@nehalam>
Date:	Wed, 8 Sep 2010 07:55:45 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Jiri Slaby <jslaby@...e.cz>
Cc:	Masayuki Ohtake <masa-korg@....okisemi.com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	ML netdev <netdev@...r.kernel.org>,
	MeeGo <meego-dev@...go.com>, Maxime Bizon <mbizon@...ebox.fr>,
	LKML <linux-kernel@...r.kernel.org>,
	Kristoffer Glembo <kristoffer@...sler.com>,
	John Linn <john.linn@...inx.com>,
	Joe Perches <joe@...ches.com>,
	Greg Rose <gregory.v.rose@...el.com>,
	"David S. Miller" <davem@...emloft.net>,
	"Wang, Yong Y" <yong.y.wang@...el.com>,
	"Wang, Qi" <qi.wang@...el.com>,
	Toshiharu Okada <okada533@....okisemi.com>,
	Tomoya Morinaga <morinaga526@....okisemi.com>,
	Takahiro Shimizu <shimizu394@....okisemi.com>,
	Intel OTC <joel.clark@...el.com>,
	"Foster, Margie" <margie.foster@...el.com>,
	Andrew <andrew.chih.howe.khor@...el.com>
Subject: Re: [PATCH] Gigabit Ethernet driver of Topcliff PCH

On Wed, 08 Sep 2010 16:16:11 +0200
Jiri Slaby <jslaby@...e.cz> wrote:

> >>> +
> >>> + rxdr->count = max(ring->rx_pending, (u32) PCH_GBE_MIN_RXD);
> >>> + rxdr->count = min(rxdr->count, (u32) PCH_GBE_MAX_RXD);  
> >>
> >> clamp()
> >> And why you need the cast?  
> > 
> > [masa]
> > Since warning appears at the time of a make.  
> 
> OK, then you have type error which you should fix instead. Perhaps
> define the constnts with U suffix?

Better yet:
	rxdr->count = clamp_val(ring->rx_pending,
				PCH_GBE_MIN_RXD,
				PCH_GBE_MAX_RXD);

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