netdev - Re: [PATCH v3] mISDN: mark symbols static where possible

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Message-ID: <8601808.6tDXj1LKbX@wuerfel>
Date:   Thu, 01 Sep 2016 09:28:58 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Baoyou Xie <baoyou.xie@...aro.org>
Cc:     isdn@...ux-pingi.de, davem@...emloft.net, dan.carpenter@...cle.com,
        mail@...iej.szmigiero.name, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, xie.baoyou@....com.cn
Subject: Re: [PATCH v3] mISDN: mark symbols static where possible

On Thursday, September 1, 2016 2:16:24 PM CEST Baoyou Xie wrote:
> We get a few warnings when building kernel with W=1:
> drivers/isdn/hardware/mISDN/hfcmulti.c:568:1: warning: no previous declaration for 'enablepcibridge' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:574:1: warning: no previous declaration for 'disablepcibridge' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:580:1: warning: no previous declaration for 'readpcibridge' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:608:1: warning: no previous declaration for 'writepcibridge' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:638:1: warning: no previous declaration for 'cpld_set_reg' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:645:1: warning: no previous declaration for 'cpld_write_reg' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:657:1: warning: no previous declaration for 'cpld_read_reg' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:674:1: warning: no previous declaration for 'vpm_write_address' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:681:1: warning: no previous declaration for 'vpm_read_address' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:695:1: warning: no previous declaration for 'vpm_in' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:716:1: warning: no previous declaration for 'vpm_out' [-Wmissing-declarations]
> drivers/isdn/hardware/mISDN/hfcmulti.c:1028:1: warning: no previous declaration for 'plxsd_checksync' [-Wmissing-declarations]
> ....
> 
> In fact, these functions are only used in the file in which they are
> declared and don't need a declaration, but can be made static.
> so this patch marks these functions with 'static'.
> 
> Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
> 
Acked-by: Arnd Bergmann <arnd@...db.de>