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From: Andrew Lunn <andrew@lunn.ch>
To: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel@savoirfairelinux.com,
	"David S. Miller" <davem@davemloft.net>,
	Florian Fainelli <f.fainelli@gmail.com>
Subject: Re: [PATCH net-next] net: dsa: add CONFIG_NET_DSA_LEGACY
Date: Tue, 11 Apr 2017 23:20:26 +0200	[thread overview]
Message-ID: <20170411212026.GA7023@lunn.ch> (raw)
In-Reply-To: <20170411205237.29309-1-vivien.didelot@savoirfairelinux.com>

> +#ifdef CONFIG_NET_DSA_LEGACY
>  static const char *mv88e6xxx_drv_probe(struct device *dsa_dev,
>  				       struct device *host_dev, int sw_addr,
>  				       void **priv)
> @@ -4256,6 +4257,7 @@ static const char *mv88e6xxx_drv_probe(struct device *dsa_dev,
>  
>  	return NULL;
>  }
> +#endif /* CONFIG_NET_DSA_LEGACY */

Hi Vivien

Rather than scatter #ifdef everywhere, can you use

       if (!IS_ENABLED(CONFIG_NET_DSA_LEGACY))
              return NULL

The compiler will then throw away the rest of the function, after
checking it does actually compile.

	 Andrew

  parent reply	other threads:[~2017-04-11 21:20 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-11 20:52 [PATCH net-next] net: dsa: add CONFIG_NET_DSA_LEGACY Vivien Didelot
2017-04-11 20:59 ` Florian Fainelli
2017-04-12 14:22   ` Vivien Didelot
2017-04-11 21:20 ` Andrew Lunn [this message]
2017-04-12 14:50   ` Vivien Didelot
  -- strict thread matches above, loose matches on Subject: below --
2016-07-20 22:26 Vivien Didelot
2016-07-21  0:35 ` Andrew Lunn
2016-07-21  2:15   ` Florian Fainelli
2016-07-21 14:46     ` Vivien Didelot
2016-07-21 14:52       ` Andrew Lunn
2016-07-21 14:44   ` Vivien Didelot

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