Messages in this thread | | | From | "Rafael J. Wysocki" <> | Date | Wed, 19 Sep 2018 12:31:42 +0200 | Subject | Re: [PATCH 05/12][RFC v3] x86-32, hibernate: Enable CONFIG_ARCH_HIBERNATION_HEADER set on 32bit system |
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On Wed, Sep 19, 2018 at 9:32 AM Chen Yu <yu.c.chen@intel.com> wrote: > > From: Zhimin Gu <kookoo.gu@intel.com> > > Enable CONFIG_ARCH_HIBERNATION_HEADER for 32bit system so that > md5 check is enabled and prepare for relocated code executing > and jump address mapping. > > Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> > Signed-off-by: Zhimin Gu <kookoo.gu@intel.com> > Signed-off-by: Chen Yu <yu.c.chen@intel.com> > --- > arch/x86/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 1a0be022f91d..e8de5de1057f 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -2422,7 +2422,7 @@ menu "Power management and ACPI options" > > config ARCH_HIBERNATION_HEADER > def_bool y > - depends on X86_64 && HIBERNATION > + depends on HIBERNATION > > source "kernel/power/Kconfig" > > --
In this patch, in addition to the above, I would start moving the code in hibernate.c that you want to be common in the end out of #ifdef CONFIG_X86_64 blocks.
To start with, that would be the checksum handling code and the parts of arch_hibernation_header_save/restore() that refer to it and the "magic" value.
I would continue doing that in the subsequent patches to make it easier to follow which pieces of code start to be used on 32-bit after each patch. The impact of each patch would be more clear this way IMO.
Thanks, Rafael
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