linux-kernel - RE: [PATCH] net/dsa: remove unused macros to tame gcc warning

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Message-ID: <fcfd34532a8349cabad2cbd561fa1a60@AcuMS.aculab.com>
Date:   Fri, 6 Nov 2020 09:24:09 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Joe Perches' <joe@...ches.com>,
        Alex Shi <alex.shi@...ux.alibaba.com>,
        "andrew@...n.ch" <andrew@...n.ch>
CC:     Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] net/dsa: remove unused macros to tame gcc warning

From: Joe Perches
> Sent: 06 November 2020 06:36
> 
> On Fri, 2020-11-06 at 13:37 +0800, Alex Shi wrote:
> > There are some macros unused, they causes much gcc warnings. Let's
> > remove them to tame gcc.
> 
> I believe these to be essentially poor warnings.

Indeed.

One 'solution' is to move the #defines into an included .h file.

> Aren't these warnings generated only when adding  W=2 to the make
> command line?
> 
> Perhaps it's better to move the warning to level 3

I'd move then to level 9999999999.

	David

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