x86, apic: clean up ->vector_allocation_domain()

- separate the namespace

 - remove macros

 - move the default vector-allocation-domain to mach-generic

 - fix whitespace damage

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 15 insertions, 1 deletions

diff --git a/arch/x86/mach-generic/default.c b/arch/x86/mach-generic/default.c
index e89e8c9dd68d..6adc3c69a3c9 100644
--- a/arch/x86/mach-generic/default.c
+++ b/arch/x86/mach-generic/default.c
@@ -18,6 +18,20 @@
 #include <asm/mach-default/mach_mpparse.h>
 #include <asm/mach-default/mach_wakecpu.h>
 
+static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
+{
+        /*
+         * Careful. Some cpus do not strictly honor the set of cpus
+         * specified in the interrupt destination when using lowest
+         * priority interrupt delivery mode.
+         *
+         * In particular there was a hyperthreading cpu observed to
+         * deliver interrupts to the wrong hyperthread when only one
+         * hyperthread was specified in the interrupt desitination.
+         */
+        *retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
+}
+
 /* should be called last. */
 static int probe_default(void)
 {
@@ -41,7 +55,7 @@ struct genapic apic_default = {
         .check_apicid_used              = default_check_apicid_used,
         .check_apicid_present           = default_check_apicid_present,
 
-        .vector_allocation_domain       = vector_allocation_domain,
+        .vector_allocation_domain       = default_vector_allocation_domain,
         .init_apic_ldr                  = init_apic_ldr,
 
         .ioapic_phys_id_map             = ioapic_phys_id_map,