linux-kernel - Re: [patch 01/38] pm: Move nvs routines into a seperate file.

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Date:	Mon, 8 Jun 2009 17:36:11 +0200
From:	Cornelia Huck <cornelia.huck@...ibm.com>
To:	Pavel Machek <pavel@....cz>
Cc:	Martin Schwidefsky <schwidefsky@...ibm.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org,
	linux-s390@...r.kernel.org, linux-pm@...ts.linux-foundation.org,
	Heiko Carstens <heiko.carstens@...ibm.com>
Subject: Re: [patch 01/38] pm: Move nvs routines into a seperate file.

On Mon, 8 Jun 2009 08:35:01 +0200,
Pavel Machek <pavel@....cz> wrote:

> On Thu 2009-06-04 18:18:48, Martin Schwidefsky wrote:
> > From: Cornelia Huck <cornelia.huck@...ibm.com>
> > 
> > The *_nvs_* routines in swsusp.c make use of the io*map()
> > functions, which are only provided for HAS_IOMEM, thus
> > breaking compilation if HAS_IOMEM is not set. Fix this
> > by moving the *_nvs_* routines into nvs.c, which is only
> > compiled if HAS_IOMEM is set.
> > 
> > Signed-off-by: Cornelia Huck <cornelia.huck@...ibm.com>
> > Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com>
> > ---
> >  include/linux/suspend.h |   18 ++++--
> >  kernel/power/Kconfig    |    4 +
> >  kernel/power/Makefile   |    1 
> >  kernel/power/nvs.c      |  131 ++++++++++++++++++++++++++++++++++++++++++++++++
> >  kernel/power/swsusp.c   |  122 --------------------------------------------
> >  5 files changed, 147 insertions(+), 129 deletions(-)
> > 
> > Index: linux-2.6/kernel/power/nvs.c
> > ===================================================================
> > --- /dev/null
> > +++ linux-2.6/kernel/power/nvs.c
> 
> Ideally, filename would be a bit more descriptive. 

hibernate_nvs.c?

> 
> > @@ -0,0 +1,131 @@
> > +/*
> > + * Routines for NVS memory handling
> > + */
> 
> If you copy&pasted code, you need to copy&paste copyright notices, too.

Which ones? Rafael, it seems you wrote the NVS code - which copyright
should I use?

> 
> > --- linux-2.6.orig/kernel/power/Makefile
> > +++ linux-2.6/kernel/power/Makefile
> > @@ -7,5 +7,6 @@ obj-$(CONFIG_PM)		+= main.o
> >  obj-$(CONFIG_PM_SLEEP)		+= console.o
> >  obj-$(CONFIG_FREEZER)		+= process.o
> >  obj-$(CONFIG_HIBERNATION)	+= swsusp.o disk.o snapshot.o swap.o user.o
> > +obj-$(CONFIG_NVS)		+= nvs.o
> >  
> >  obj-$(CONFIG_MAGIC_SYSRQ)	+= poweroff.o
> 
> CONFIG_NVS is definitely not descriptive enough. C_HIBERNATION_NVS?

It's a hidden config variable - but I can change it to
CONFIG_HIBERNATION_NVS.
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