Re: [PATCH v2] SFI: fix compilation warnings

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On Tue, 2013-12-10 at 01:30 +0000, Zheng, Lv wrote:
> Hi, Andy
> 
> IMO:
> 1. sfi_acpi.h should include both <linux/acpi.h> and <linux/sfi.h> and it should include <acpi/acpi.h> for !CONFIG_ACPI builds.
> 2. then we should include sfi_acpi.h instead of <linux/acpi.h>, <linux/sfi.h> and <acpi/acpi.h> for all of its users.
> 
> I think the patch in the linux-pm/bleeding-edge queue can fix the issue you've reported:
> https://git.kernel.org/cgit/linux/kernel/git/rafael/linux-pm.git/commit/?h=bleeding-edge&id=c099eacbcaec4475936fbf73e499507728ce47e1

I think so, I'll test this later.

Only one thing I don't like is the FIXME stuff in the sfi_acpi.h.
Could it be fixed as well?


> 
> I made it a part of my header cleanup series.
> The story can be found in this mailing list thread:
> http://www.spinics.net/lists/linux-acpi/msg47510.html
> 
> Thanks and best regards
> -Lv
> 
> 
> > -----Original Message-----
> > From: Andy Shevchenko [mailto:andriy.shevchenko@xxxxxxxxxxxxxxx]
> > Sent: Monday, December 09, 2013 5:09 PM
> > To: Wysocki, Rafael J; linux-acpi @ vger . kernel . org; LKML; Zheng, Lv
> > Cc: Andy Shevchenko
> > Subject: [PATCH v2] SFI: fix compilation warnings
> > 
> > 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 add linux/acpi.h to the top of file.
> > 
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> > ---
> > Changes to v2:
> > - fix for build when ACPI=n, SFI=y
> >  drivers/sfi/sfi_acpi.c   | 2 +-
> >  include/linux/sfi_acpi.h | 4 +++-
> >  2 files changed, 4 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/sfi/sfi_acpi.c b/drivers/sfi/sfi_acpi.c
> > index 5e753d7..5589ec5 100644
> > --- a/drivers/sfi/sfi_acpi.c
> > +++ b/drivers/sfi/sfi_acpi.c
> > @@ -60,7 +60,7 @@
> >  #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
> > 
> >  #include <linux/kernel.h>
> > -#include <acpi/acpi.h>	/* FIXME: inclusion should be removed */
> > +#include <linux/acpi.h>
> > 
> >  #include <linux/sfi.h>
> >  #include "sfi_core.h"
> > diff --git a/include/linux/sfi_acpi.h b/include/linux/sfi_acpi.h
> > index 2cfcb79..ecc2344 100644
> > --- a/include/linux/sfi_acpi.h
> > +++ b/include/linux/sfi_acpi.h
> > @@ -60,7 +60,9 @@
> >  #define _LINUX_SFI_ACPI_H
> > 
> >  #ifdef CONFIG_SFI
> > -#include <acpi/acpi.h>	/* FIXME: inclusion should be removed */
> > +
> > +#include <acpi/acpi.h>
> > +#include <linux/acpi.h>
> > 
> >  extern int sfi_acpi_table_parse(char *signature, char *oem_id,
> >  				char *oem_table_id,
> > --
> > 1.8.4.4
> 

-- 
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy

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