linux-kernel - Re: [PATCH] SFI: fix compilation warnings

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Date:	Fri, 06 Dec 2013 03:00:31 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	"Zheng, Lv" <lv.zheng@...el.com>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	"Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] SFI: fix compilation warnings

On Friday, December 06, 2013 01:26:07 AM Zheng, Lv wrote:
> > From: Rafael J. Wysocki [mailto:rjw@...ysocki.net]
> > Sent: Friday, December 06, 2013 9:26 AM
> > 
> > On Friday, December 06, 2013 01:08:45 AM Zheng, Lv wrote:
> > > > From: Rafael J. Wysocki [mailto:rjw@...ysocki.net]
> > > > Sent: Friday, December 06, 2013 6:37 AM
> > > >
> > > > On Thursday, December 05, 2013 07:26:37 PM Andy Shevchenko wrote:
> > > > > When build kernel with make W=1 we get the following compiler error.
> > > > >
> > > > > In file included from drivers/sfi/sfi_acpi.c:66:0:
> > > > > include/linux/sfi_acpi.h: In function ‘acpi_sfi_table_parse’:
> > > > > include/linux/sfi_acpi.h:72:2: error: implicit declaration of function ‘acpi_table_parse’ [-Werror=implicit-function-declaration]
> > > > >   if (!acpi_table_parse(signature, handler))
> > > > >   ^
> > > > >   cc1: some warnings being treated as errors
> > > > >
> > > > > The patch changes acpi/acpi.h inclusion to linux/acpi.h.
> > > > >
> > > > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> > > >
> > > > OK
> > > >
> > > > Lv, I'm dropping your patch cleaning up the inclusions, please sort that thing
> > > > out entirely for the next cycle.
> > >
> > > No, I think Andy's patch is wrong.
> > 
> > His patch may be wrong, but the warning in his changelog surely is real. :-)
> > 
> > > This warning is existing before merging my fixes.
> > >
> > > Either we fix this warning or leave it as is.
> > >
> > > To fix it, you need to add 1 line in sfi_acpi.h rather than change the line.
> > > Let me post a fix for this.
> > 
> > Please do.  And I'm putting all ACPI header cleanups on hold until all warnings
> > of this kind have been fixed by them.  Otherwise doing those cleanups makes a
> > little sense in my opinion.
> 
> OK, not only this warning, there is another warning in sfi_acpi.c.
> I doubt whether they are strictly tested before upstreamed...
> They are all existing warnings.
> You can apply my new patch before the cleanup series.

Sorry, I'm already lost in the thick of patches. :-)

Please resend them all as a single series.

Thanks,
Rafael

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