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From: Borislav Petkov <bp@alien8.de>
To: Yi Wang <wang.yi59@zte.com.cn>, Michael Matz <matz@suse.de>
Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
	x86@kernel.org, suravee.suthikulpanit@amd.com, puwen@hygon.cn,
	davidwang@zhaoxin.com, linux-kernel@vger.kernel.org,
	zhong.weidong@zte.com.cn
Subject: Re: [PATCH v2] x86/cpu: fix prototype warning
Date: Thu, 8 Nov 2018 16:32:27 +0100	[thread overview]
Message-ID: <20181108153226.GF7543@zn.tnic> (raw)
In-Reply-To: <20181108150318.GD7543@zn.tnic>

On Thu, Nov 08, 2018 at 04:03:18PM +0100, Borislav Petkov wrote:
> On Thu, Nov 08, 2018 at 09:12:28AM +0800, Yi Wang wrote:
> > This patch fix the following build warnings which because of missing
> > include file:
> > 
> > arch/x86/kernel/cpu/cacheinfo.c:647:6: warning: no previous prototype for ‘cacheinfo_amd_init_llc_id’ [-Wmissing-prototypes]
> > arch/x86/kernel/cpu/cacheinfo.c:686:6: warning: no previous prototype for ‘cacheinfo_hygon_init_llc_id’ [-Wmissing-prototypes]
> > arch/x86/kernel/cpu/scattered.c:37:6: warning: no previous prototype for ‘init_scattered_cpuid_features’ [-Wmissing-prototypes]
> > arch/x86/kernel/cpu/scattered.c:60:5: warning: no previous prototype for ‘get_scattered_cpuid_leaf’ [-Wmissing-prototypes]
> 
> That function is gone in:
> 
> https://git.kernel.org/tip/43500e6f294d175602606c77bfb0d8cd4ea88b4f
> 
> You probably should run your test against tip/master.
> 
> Also, you should say in your commit message that this is an extra
> warning - -Wmissing-prototypes - which is not enabled by default but a
> W=1 one.

And frankly, I don't see why we should be fixing all those. So what if a
global function does't have a previous prototype declaration?!

Micha, is there anything "useful" that warning bitches about or should
we disable it?

Thx.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.

  reply	other threads:[~2018-11-08 15:32 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-08  1:12 [PATCH v2] x86/cpu: fix prototype warning Yi Wang
2018-11-08 15:03 ` Borislav Petkov
2018-11-08 15:32   ` Borislav Petkov [this message]
2018-11-08 15:35     ` Thomas Gleixner
2018-11-08 15:41       ` Borislav Petkov
2018-11-09 16:07       ` David Laight
2018-11-10 10:51       ` [tip:ras/core] x86/mce: Fix -Wmissing-prototypes warnings tip-bot for Borislav Petkov
2018-11-10 14:16         ` Borislav Petkov
2018-11-12  5:24           ` Ingo Molnar
2018-11-12 12:19             ` Borislav Petkov
2018-11-13 14:22           ` [tip:x86/cleanups] x86/traps: Complete prototype declarations tip-bot for Borislav Petkov
2018-11-14 13:19           ` tip-bot for Borislav Petkov
2018-11-13 14:21       ` [tip:x86/cleanups] x86/mce: Fix -Wmissing-prototypes warnings tip-bot for Borislav Petkov
2018-11-14 13:18       ` tip-bot for Borislav Petkov
2018-11-08 15:47     ` [PATCH v2] x86/cpu: fix prototype warning Michael Matz
2018-11-08 17:22       ` Borislav Petkov
     [not found]         ` <201811090843126464658@zte.com.cn>
2018-11-09 10:55           ` Borislav Petkov
2018-11-09 11:12             ` Greg KH
2018-11-09 11:41               ` Borislav Petkov
2018-11-09 12:25                 ` Greg KH
2018-11-09 22:17       ` Borislav Petkov

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