Re: [PATCH] init/main.c: Do jump_label_init before early_security_init

[Peter Zijlstra <peterz@infradead.org>]

On Wed, Jul 31, 2024 at 09:15:04PM -0400, Paul Moore wrote:
> On Wed, Jul 31, 2024 at 5:34 PM KP Singh <kpsingh@kernel.org> wrote:
> >
> > LSM indirect calls being are now replaced by static calls, this requires
> > a jumpt_table_init before early_security_init where LSM hooks and their
> > static calls and keys are initialized.
> >
> > Fixes: 2732ad5ecd5b ("lsm: replace indirect LSM hook calls with static calls")
> > Signed-off-by: KP Singh <kpsingh@kernel.org>
> > ---
> >  init/main.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> Does this look okay, static call folks?

Are we confused between jump_label/static_branch and static_call ?

> > diff --git a/init/main.c b/init/main.c
> > index 206acdde51f5..5bd45af7a49e 100644
> > --- a/init/main.c
> > +++ b/init/main.c
> > @@ -922,6 +922,8 @@ void start_kernel(void)
> >         boot_cpu_init();
> >         page_address_init();
> >         pr_notice("%s", linux_banner);
> > +       /* LSM and command line parameters use static keys */
> > +       jump_label_init();
> >         early_security_init();
> >         setup_arch(&command_line);
> >         setup_boot_config();
> > @@ -933,8 +935,6 @@ void start_kernel(void)
> >         boot_cpu_hotplug_init();
> >
> >         pr_notice("Kernel command line: %s\n", saved_command_line);
> > -       /* parameters may set static keys */
> > -       jump_label_init();
> >         parse_early_param();
> >         after_dashes = parse_args("Booting kernel",
> >                                   static_command_line, __start___param,
> > --
> > 2.46.0.rc2.264.g509ed76dc8-goog
> 
> -- 
> paul-moore.com