Re: livepatching tree for linux-next
From: Andrew Morton
Date: Wed Jan 07 2015 - 19:33:52 EST
On Thu, 8 Jan 2015 01:11:03 +0100 (CET) Jiri Kosina <jkosina@xxxxxxx> wrote:
> On Wed, 7 Jan 2015, Andrew Morton wrote:
>
> > > --- a/kernel/livepatch/core.c
> > > +++ b/kernel/livepatch/core.c
> > > @@ -911,6 +911,12 @@ static int klp_init(void)
> > > {
> > > int ret;
> > >
> > > + ret = klp_check_compiler_support();
> > > + if (ret) {
> > > + pr_info("Your compiler is too old; turning off.\n");
> > > + return -EINVAL;
> > > + }
> > > +
> >
> > Looks reasonable.
>
> Thanks. Can I treat this as your Reported-and-tested-by .. ?
I compile tested it. Then I got bored trying to hunt down all the
Kconfig things I needed to turn on to runtime test it ;)
btw, I suggest using HAVE_LIVE_PATCHING instead of
ARCH_HAVE_LIVE_PATCHING. because this:
akpm3:/usr/src/25> grep " HAVE_" arch/x86/Kconfig | wc -l
67
akpm3:/usr/src/25> grep " ARCH_HAVE_" arch/x86/Kconfig | wc -l
3
akpm3:/usr/src/25> grep " ARCH_HAS_" arch/x86/Kconfig | wc -l
7
akpm3:/usr/src/25> grep " HAVE_ARCH" arch/x86/Kconfig | wc -l
8
akpm3:/usr/src/25> grep " ARCH_USE" arch/x86/Kconfig | wc -l
4
akpm3:/usr/src/25> grep " ARCH_WANT" arch/x86/Kconfig | wc -l
6
makes me cry.
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