x86, nmi_watchdog: Remove all stub function calls from old nmi_watchdog

Now that the bulk of the old nmi_watchdog is gone, remove all
the stub variables and hooks associated with it.

This touches lots of files mainly because of how the io_apic
nmi_watchdog was implemented.  Now that the io_apic nmi_watchdog
is forever gone, remove all its fingers.

Most of this code was not being exercised by virtue of
nmi_watchdog != NMI_IO_APIC, so there shouldn't be anything to
risky here.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: fweisbec@gmail.com
Cc: gorcunov@openvz.org
LKML-Reference: <1289578944-28564-3-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 14 deletions

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 3f838d537392..e9e2a93783f9 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -31,7 +31,6 @@
 #include <linux/init.h>
 #include <linux/cpu.h>
 #include <linux/dmi.h>
-#include <linux/nmi.h>
 #include <linux/smp.h>
 #include <linux/mm.h>
 
@@ -799,11 +798,7 @@ void __init setup_boot_APIC_clock(void)
          * PIT/HPET going.  Otherwise register lapic as a dummy
          * device.
          */
-        if (nmi_watchdog != NMI_IO_APIC)
-                lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY;
-        else
-                pr_warning("APIC timer registered as dummy,"
-                        " due to nmi_watchdog=%d!\n", nmi_watchdog);
+        lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY;
 
         /* Setup the lapic or request the broadcast */
         setup_APIC_timer();
@@ -1387,7 +1382,6 @@ void __cpuinit end_local_APIC_setup(void)
         }
 #endif
 
-        setup_apic_nmi_watchdog(NULL);
         apic_pm_activate();
 }
 
@@ -1750,17 +1744,10 @@ int __init APIC_init_uniprocessor(void)
                 setup_IO_APIC();
         else {
                 nr_ioapics = 0;
-                localise_nmi_watchdog();
         }
-#else
-        localise_nmi_watchdog();
 #endif
 
         x86_init.timers.setup_percpu_clockev();
-#ifdef CONFIG_X86_64
-        check_nmi_watchdog();
-#endif
-
         return 0;
 }