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From: <wang.yi59@zte.com.cn>
To: mingo@kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
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Subject: Re: [PATCH] x86: fix -Wmissing-prototypes warning
Date: Thu, 22 Nov 2018 19:04:59 +0800 (CST)	[thread overview]
Message-ID: <201811221904598072830@zte.com.cn> (raw)
In-Reply-To: <20181122084815.GA84118@gmail.com>


[-- Attachment #1.1: Type: text/plain, Size: 1722 bytes --]

Hi Ingo,

> * Yi Wang <wang.yi59@zte.com.cn> wrote:
>
> > We may get -Wmissing-prototypes warnings when building
> > kernel with W=1, it's better to fix them as global function
> > signature can be changed and caller who use the old unchanged
> > prototypes will be hosed.
> >
> > This patch fixes most of -Wmissing-prototypes warnings which
> > are in the root directory of arch/x86/kernel, not including
> > the subdirectories.
> >
> > These are the warnings fixed in this patch:
> > arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]

......

> >  include/linux/ftrace.h             | 3 +++
> >  include/linux/kexec.h              | 1 +
> >  include/linux/of_fdt.h             | 1 +
> >  include/linux/ptrace.h             | 1 +
> >  24 files changed, 55 insertions(+), 3 deletions(-)
>
> Breaks 32-bit compilation:
>
> ../arch/x86/include/asm/setup.h: Assembler messages:
> ../arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'
>
> I'll skip the setup.h bits - let's hope that's the only bug.

Sorry for the inconvenience, though I have checked carefully :-)

How do you produce this error? I tested this way but did not reproduce
that error:
# make allmodconfig
# make -j8

Thanks for your time again!


---
Best wishes
Yi Wang

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  reply	other threads:[~2018-11-22 11:04 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-22  2:04 [PATCH] x86: fix -Wmissing-prototypes warning Yi Wang
2018-11-22  8:48 ` Ingo Molnar
2018-11-22 11:04   ` wang.yi59 [this message]
2018-11-22 11:14     ` Ingo Molnar

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