[PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[manjugk]

From: Manjunatha GK <manjugk@ti.com>


Signed-off-by: Manjunatha GK <manjugk@ti.com>
---
 arch/arm/configs/omap_zoom2_defconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/configs/omap_zoom2_defconfig b/arch/arm/configs/omap_zoom2_defconfig
index f1739fa..8ca835a 100644
--- a/arch/arm/configs/omap_zoom2_defconfig
+++ b/arch/arm/configs/omap_zoom2_defconfig
@@ -1350,7 +1350,7 @@ CONFIG_ENABLE_MUST_CHECK=y
 CONFIG_FRAME_WARN=1024
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
+CONFIG_DEBUG_FS=y
 # CONFIG_HEADERS_CHECK is not set
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_DEBUG_SHIRQ is not set
-- 
1.6.0.4

RE: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[G, Manjunath Kondaiah]

It looks like config issue with git-send-email on my system.

Here is Patch Description:
 The CONFIG_DEBUG_FS is not enabled in omap_zoom2_defconfig which
 is breaking zoom2 defconfig build in linux-omap-pm(pm branch).
 This patch fixes build issue and kernel booting is also tested
 on zoom2.

> -----Original Message-----
> From: G, Manjunath Kondaiah 
> Sent: Monday, November 02, 2009 1:26 PM
> To: linux-omap@vger.kernel.org
> Cc: khilman@deeprootsystems.com; G, Manjunath Kondaiah
> Subject: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build
> 
> From: Manjunatha GK <manjugk@ti.com>
> 
> 
> Signed-off-by: Manjunatha GK <manjugk@ti.com>
> ---
>  arch/arm/configs/omap_zoom2_defconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/configs/omap_zoom2_defconfig 
> b/arch/arm/configs/omap_zoom2_defconfig
> index f1739fa..8ca835a 100644
> --- a/arch/arm/configs/omap_zoom2_defconfig
> +++ b/arch/arm/configs/omap_zoom2_defconfig
> @@ -1350,7 +1350,7 @@ CONFIG_ENABLE_MUST_CHECK=y
>  CONFIG_FRAME_WARN=1024
>  CONFIG_MAGIC_SYSRQ=y
>  # CONFIG_UNUSED_SYMBOLS is not set
> -# CONFIG_DEBUG_FS is not set
> +CONFIG_DEBUG_FS=y
>  # CONFIG_HEADERS_CHECK is not set
>  CONFIG_DEBUG_KERNEL=y
>  # CONFIG_DEBUG_SHIRQ is not set
> -- 
> 1.6.0.4
> 
> 

Re: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[Artem Bityutskiy]

On Mon, 2009-11-02 at 13:26 +0530, manjugk@ti.com wrote:
> From: Manjunatha GK <manjugk@ti.com>
> 
> 
> Signed-off-by: Manjunatha GK <manjugk@ti.com>
> ---
>  arch/arm/configs/omap_zoom2_defconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/configs/omap_zoom2_defconfig b/arch/arm/configs/omap_zoom2_defconfig
> index f1739fa..8ca835a 100644
> --- a/arch/arm/configs/omap_zoom2_defconfig
> +++ b/arch/arm/configs/omap_zoom2_defconfig
> @@ -1350,7 +1350,7 @@ CONFIG_ENABLE_MUST_CHECK=y
>  CONFIG_FRAME_WARN=1024
>  CONFIG_MAGIC_SYSRQ=y
>  # CONFIG_UNUSED_SYMBOLS is not set
> -# CONFIG_DEBUG_FS is not set
> +CONFIG_DEBUG_FS=y
>  # CONFIG_HEADERS_CHECK is not set
>  CONFIG_DEBUG_KERNEL=y
>  # CONFIG_DEBUG_SHIRQ is not set

It is nicer to provide the build failure log. But if this is a build
failure, this means there is a problem with Kconfig dependency, which
should be fixed properly, not hidden.

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)

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RE: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[G, Manjunath Kondaiah]

> > --- a/arch/arm/configs/omap_zoom2_defconfig
> > +++ b/arch/arm/configs/omap_zoom2_defconfig
> > @@ -1350,7 +1350,7 @@ CONFIG_ENABLE_MUST_CHECK=y
> >  CONFIG_FRAME_WARN=1024
> >  CONFIG_MAGIC_SYSRQ=y
> >  # CONFIG_UNUSED_SYMBOLS is not set
> > -# CONFIG_DEBUG_FS is not set
> > +CONFIG_DEBUG_FS=y
> >  # CONFIG_HEADERS_CHECK is not set
> >  CONFIG_DEBUG_KERNEL=y
> >  # CONFIG_DEBUG_SHIRQ is not set
> 
> It is nicer to provide the build failure log. But if this is a build
> failure, this means there is a problem with Kconfig dependency, which
> should be fixed properly, not hidden.

Here is build failure log:
  MODPOST vmlinux.o
WARNING: modpost: Found 1 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
arch/arm/mach-omap2/built-in.o: In function `omap_sram_idle':
/home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:441: undefined reference to `pm_dbg_regset_save'
/home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:452: undefined reference to `pm_dbg_regset_save'
arch/arm/mach-omap2/built-in.o: In function `configure_vc':
/home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:1226: undefined reference to `pm_dbg_regset_init'
/home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:1227: undefined reference to `pm_dbg_regset_init'
make: *** [.tmp_vmlinux1] Error 1

The above two API's are under CONFIG_DEBUG_FS flag in arch/arm/mach-omap2/pm-debug.c

-Manjunath

Re: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[Felipe Balbi]

On Mon, Nov 02, 2009 at 10:00:23AM +0100, ext G, Manjunath Kondaiah wrote:
> 
> > > --- a/arch/arm/configs/omap_zoom2_defconfig
> > > +++ b/arch/arm/configs/omap_zoom2_defconfig
> > > @@ -1350,7 +1350,7 @@ CONFIG_ENABLE_MUST_CHECK=y
> > >  CONFIG_FRAME_WARN=1024
> > >  CONFIG_MAGIC_SYSRQ=y
> > >  # CONFIG_UNUSED_SYMBOLS is not set
> > > -# CONFIG_DEBUG_FS is not set
> > > +CONFIG_DEBUG_FS=y
> > >  # CONFIG_HEADERS_CHECK is not set
> > >  CONFIG_DEBUG_KERNEL=y
> > >  # CONFIG_DEBUG_SHIRQ is not set
> > 
> > It is nicer to provide the build failure log. But if this is a build
> > failure, this means there is a problem with Kconfig dependency, which
> > should be fixed properly, not hidden.
> 
> Here is build failure log:
>   MODPOST vmlinux.o
> WARNING: modpost: Found 1 section mismatch(es).
> To see full details build your kernel with:
> 'make CONFIG_DEBUG_SECTION_MISMATCH=y'
>   GEN     .version
>   CHK     include/linux/compile.h
>   UPD     include/linux/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> arch/arm/mach-omap2/built-in.o: In function `omap_sram_idle':
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:441: undefined reference to `pm_dbg_regset_save'
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:452: undefined reference to `pm_dbg_regset_save'
> arch/arm/mach-omap2/built-in.o: In function `configure_vc':
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:1226: undefined reference to `pm_dbg_regset_init'
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:1227: undefined reference to `pm_dbg_regset_init'
> make: *** [.tmp_vmlinux1] Error 1
> 
> The above two API's are under CONFIG_DEBUG_FS flag in arch/arm/mach-omap2/pm-debug.c

so the right fix would be to change the ifdef to something saner.
Probably on the header file something like:

#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)

-- 
balbi

RE: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[G, Manjunath Kondaiah]

> -----Original Message-----
> From: Felipe Balbi [mailto:felipe.balbi@nokia.com] 
> Sent: Monday, November 02, 2009 2:44 PM
> To: G, Manjunath Kondaiah
> Cc: dedekind1@gmail.com; linux-omap@vger.kernel.org; 
> khilman@deeprootsystems.com
> Subject: Re: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build
> 
> On Mon, Nov 02, 2009 at 10:00:23AM +0100, ext G, Manjunath 
> Kondaiah wrote:
> > 
> > > > --- a/arch/arm/configs/omap_zoom2_defconfig
> > > > +++ b/arch/arm/configs/omap_zoom2_defconfig
> > > > @@ -1350,7 +1350,7 @@ CONFIG_ENABLE_MUST_CHECK=y
> > > >  CONFIG_FRAME_WARN=1024
> > > >  CONFIG_MAGIC_SYSRQ=y
> > > >  # CONFIG_UNUSED_SYMBOLS is not set
> > > > -# CONFIG_DEBUG_FS is not set
> > > > +CONFIG_DEBUG_FS=y
> > > >  # CONFIG_HEADERS_CHECK is not set
> > > >  CONFIG_DEBUG_KERNEL=y
> > > >  # CONFIG_DEBUG_SHIRQ is not set
> > > 
> > > It is nicer to provide the build failure log. But if this 
> is a build
> > > failure, this means there is a problem with Kconfig 
> dependency, which
> > > should be fixed properly, not hidden.
> > 
> > Here is build failure log:
> >   MODPOST vmlinux.o
> > WARNING: modpost: Found 1 section mismatch(es).
> > To see full details build your kernel with:
> > 'make CONFIG_DEBUG_SECTION_MISMATCH=y'
> >   GEN     .version
> >   CHK     include/linux/compile.h
> >   UPD     include/linux/compile.h
> >   CC      init/version.o
> >   LD      init/built-in.o
> >   LD      .tmp_vmlinux1
> > arch/arm/mach-omap2/built-in.o: In function `omap_sram_idle':
> > 
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34x
> x.c:441: undefined reference to `pm_dbg_regset_save'
> > 
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34x
> x.c:452: undefined reference to `pm_dbg_regset_save'
> > arch/arm/mach-omap2/built-in.o: In function `configure_vc':
> > 
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34x
> x.c:1226: undefined reference to `pm_dbg_regset_init'
> > 
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34x
> x.c:1227: undefined reference to `pm_dbg_regset_init'
> > make: *** [.tmp_vmlinux1] Error 1
> > 
> > The above two API's are under CONFIG_DEBUG_FS flag in 
> arch/arm/mach-omap2/pm-debug.c
> 
> so the right fix would be to change the ifdef to something saner.
> Probably on the header file something like:
> 
> #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
> 

Thanks for review comments. I have handled the same thing in pm-debug.c.
Here is code snippet. Now it compiles even without enabling CONFIG_DEBUG_FS.
I will submit this patch if there are no comments for this rework.

diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index 767ebbc..3a42615 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -625,4 +625,6 @@ arch_initcall(pm_dbg_init);

 #else
 void pm_dbg_update_time(struct powerdomain *pwrdm, int prev) {}
+int pm_dbg_regset_init(int reg_set) {}
+int pm_dbg_regset_save(int reg_set) {}
 #endif

> -- 
> balbi
> 
> 

Re: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[Kevin Hilman]

"G, Manjunath Kondaiah" <manjugk@ti.com> writes:

>> -----Original Message-----
>> From: Felipe Balbi [mailto:felipe.balbi@nokia.com] 
>> Sent: Monday, November 02, 2009 2:44 PM
>> To: G, Manjunath Kondaiah
>> Cc: dedekind1@gmail.com; linux-omap@vger.kernel.org; 
>> khilman@deeprootsystems.com
>> Subject: Re: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build
>> 
>> On Mon, Nov 02, 2009 at 10:00:23AM +0100, ext G, Manjunath 
>> Kondaiah wrote:
>> > 
>> > > > --- a/arch/arm/configs/omap_zoom2_defconfig
>> > > > +++ b/arch/arm/configs/omap_zoom2_defconfig
>> > > > @@ -1350,7 +1350,7 @@ CONFIG_ENABLE_MUST_CHECK=y
>> > > >  CONFIG_FRAME_WARN=1024
>> > > >  CONFIG_MAGIC_SYSRQ=y
>> > > >  # CONFIG_UNUSED_SYMBOLS is not set
>> > > > -# CONFIG_DEBUG_FS is not set
>> > > > +CONFIG_DEBUG_FS=y
>> > > >  # CONFIG_HEADERS_CHECK is not set
>> > > >  CONFIG_DEBUG_KERNEL=y
>> > > >  # CONFIG_DEBUG_SHIRQ is not set
>> > > 
>> > > It is nicer to provide the build failure log. But if this 
>> is a build
>> > > failure, this means there is a problem with Kconfig 
>> dependency, which
>> > > should be fixed properly, not hidden.
>> > 
>> > Here is build failure log:
>> >   MODPOST vmlinux.o
>> > WARNING: modpost: Found 1 section mismatch(es).
>> > To see full details build your kernel with:
>> > 'make CONFIG_DEBUG_SECTION_MISMATCH=y'
>> >   GEN     .version
>> >   CHK     include/linux/compile.h
>> >   UPD     include/linux/compile.h
>> >   CC      init/version.o
>> >   LD      init/built-in.o
>> >   LD      .tmp_vmlinux1
>> > arch/arm/mach-omap2/built-in.o: In function `omap_sram_idle':
>> > 
>> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34x
>> x.c:441: undefined reference to `pm_dbg_regset_save'
>> > 
>> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34x
>> x.c:452: undefined reference to `pm_dbg_regset_save'
>> > arch/arm/mach-omap2/built-in.o: In function `configure_vc':
>> > 
>> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34x
>> x.c:1226: undefined reference to `pm_dbg_regset_init'
>> > 
>> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34x
>> x.c:1227: undefined reference to `pm_dbg_regset_init'
>> > make: *** [.tmp_vmlinux1] Error 1
>> > 
>> > The above two API's are under CONFIG_DEBUG_FS flag in 
>> arch/arm/mach-omap2/pm-debug.c
>> 
>> so the right fix would be to change the ifdef to something saner.
>> Probably on the header file something like:
>> 
>> #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
>> 
>
> Thanks for review comments. I have handled the same thing in pm-debug.c.
> Here is code snippet. Now it compiles even without enabling CONFIG_DEBUG_FS.
> I will submit this patch if there are no comments for this rework.
>
> diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
> index 767ebbc..3a42615 100644
> --- a/arch/arm/mach-omap2/pm-debug.c
> +++ b/arch/arm/mach-omap2/pm-debug.c
> @@ -625,4 +625,6 @@ arch_initcall(pm_dbg_init);
>
>  #else
>  void pm_dbg_update_time(struct powerdomain *pwrdm, int prev) {}
> +int pm_dbg_regset_init(int reg_set) {}
> +int pm_dbg_regset_save(int reg_set) {}

you'll get compiler warnings from these.

>  #endif

but even there, this should be fixed in pm.h.  The current PM branch
has these defines already:

#define pm_dbg_regset_save(reg_set) do {} while (0);
#define pm_dbg_regset_init(reg_set) do {} while (0);

It would be cleaner to fix the #ifdef there to handle the
!CONFIG_DEBUG_FS case.

Kevin

RE: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[G, Manjunath Kondaiah]

> > diff --git a/arch/arm/mach-omap2/pm-debug.c 
> b/arch/arm/mach-omap2/pm-debug.c
> > index 767ebbc..3a42615 100644
> > --- a/arch/arm/mach-omap2/pm-debug.c
> > +++ b/arch/arm/mach-omap2/pm-debug.c
> > @@ -625,4 +625,6 @@ arch_initcall(pm_dbg_init);
> >
> >  #else
> >  void pm_dbg_update_time(struct powerdomain *pwrdm, int prev) {}
> > +int pm_dbg_regset_init(int reg_set) {}
> > +int pm_dbg_regset_save(int reg_set) {}
> 
> you'll get compiler warnings from these.

Can be changed to return with value zero for these API's.

> 
> >  #endif
> 
> but even there, this should be fixed in pm.h.  The current PM branch
> has these defines already:
> 
> #define pm_dbg_regset_save(reg_set) do {} while (0);
> #define pm_dbg_regset_init(reg_set) do {} while (0);
> 
> It would be cleaner to fix the #ifdef there to handle the
> !CONFIG_DEBUG_FS case.

pm branch has else condition for CONFIG_PM_DEBUG. But, CONFIG_DEBUG_FS
is not handled. As there is already similar API -  pm_dbg_update_time in
pm_debug.c, these API's can also fit there. More over, using !CONFIG_DEBUG_FS
will add some #ifdef's in header.

-Manjunath

Re: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[Kevin Hilman]

"G, Manjunath Kondaiah" <manjugk@ti.com> writes:

>> > diff --git a/arch/arm/mach-omap2/pm-debug.c 
>> b/arch/arm/mach-omap2/pm-debug.c
>> > index 767ebbc..3a42615 100644
>> > --- a/arch/arm/mach-omap2/pm-debug.c
>> > +++ b/arch/arm/mach-omap2/pm-debug.c
>> > @@ -625,4 +625,6 @@ arch_initcall(pm_dbg_init);
>> >
>> >  #else
>> >  void pm_dbg_update_time(struct powerdomain *pwrdm, int prev) {}
>> > +int pm_dbg_regset_init(int reg_set) {}
>> > +int pm_dbg_regset_save(int reg_set) {}
>> 
>> you'll get compiler warnings from these.
>
> Can be changed to return with value zero for these API's.
>
>> 
>> >  #endif
>> 
>> but even there, this should be fixed in pm.h.  The current PM branch
>> has these defines already:
>> 
>> #define pm_dbg_regset_save(reg_set) do {} while (0);
>> #define pm_dbg_regset_init(reg_set) do {} while (0);
>> 
>> It would be cleaner to fix the #ifdef there to handle the
>> !CONFIG_DEBUG_FS case.
>
> pm branch has else condition for CONFIG_PM_DEBUG. But, CONFIG_DEBUG_FS
> is not handled. 

I know, my proposal is to handle the DEBUG_FS case there also.

> As there is already similar API - pm_dbg_update_time in pm_debug.c,
> these API's can also fit there. More over, using !CONFIG_DEBUG_FS
> will add some #ifdef's in header.

So handle the pm_dbg_update_time() in the header as well.

Handling them in the header will also eliminate the runtime overhead
of an empty function call when DEBUG_FS is not included.

Kevin
<

RE: [PATCH] [OMAP3_PM] Fix zoom2 defconfig build

[Artem Bityutskiy]

On Mon, 2009-11-02 at 14:30 +0530, G, Manjunath Kondaiah wrote:
> > > --- a/arch/arm/configs/omap_zoom2_defconfig
> > > +++ b/arch/arm/configs/omap_zoom2_defconfig
> > > @@ -1350,7 +1350,7 @@ CONFIG_ENABLE_MUST_CHECK=y
> > >  CONFIG_FRAME_WARN=1024
> > >  CONFIG_MAGIC_SYSRQ=y
> > >  # CONFIG_UNUSED_SYMBOLS is not set
> > > -# CONFIG_DEBUG_FS is not set
> > > +CONFIG_DEBUG_FS=y
> > >  # CONFIG_HEADERS_CHECK is not set
> > >  CONFIG_DEBUG_KERNEL=y
> > >  # CONFIG_DEBUG_SHIRQ is not set
> > 
> > It is nicer to provide the build failure log. But if this is a build
> > failure, this means there is a problem with Kconfig dependency, which
> > should be fixed properly, not hidden.
> 
> Here is build failure log:
>   MODPOST vmlinux.o
> WARNING: modpost: Found 1 section mismatch(es).
> To see full details build your kernel with:
> 'make CONFIG_DEBUG_SECTION_MISMATCH=y'
>   GEN     .version
>   CHK     include/linux/compile.h
>   UPD     include/linux/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> arch/arm/mach-omap2/built-in.o: In function `omap_sram_idle':
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:441: undefined reference to `pm_dbg_regset_save'
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:452: undefined reference to `pm_dbg_regset_save'
> arch/arm/mach-omap2/built-in.o: In function `configure_vc':
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:1226: undefined reference to `pm_dbg_regset_init'
> /home/manju/clones/git/linux-omap-pm/arch/arm/mach-omap2/pm34xx.c:1227: undefined reference to `pm_dbg_regset_init'
> make: *** [.tmp_vmlinux1] Error 1
> 
> The above two API's are under CONFIG_DEBUG_FS flag in arch/arm/mach-omap2/pm-debug.c

OK, but why do you send a band-aid to fix this, instead of a real fix?

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)

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