x86: Move irq_init to x86_init_ops

irq_init is overridden by x86_quirks and by paravirts. Unify the whole
mess and make it an unconditional x86_init_ops function which defaults
to the standard function and can be overridden by the early platform
code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

6 files changed, 5 insertions, 33 deletions

diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c
index ec8b3113716d..eafd341e42dd 100644
--- a/arch/x86/kernel/apic/numaq_32.c
+++ b/arch/x86/kernel/apic/numaq_32.c
@@ -265,7 +265,6 @@ static void __init smp_read_mpc_oem(struct mpc_table *mpc)
 static struct x86_quirks numaq_x86_quirks __initdata = {
         .arch_pre_time_init             = numaq_pre_time_init,
         .arch_time_init                 = NULL,
-        .arch_intr_init                 = NULL,
         .arch_trap_init                 = NULL,
 };
 
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index acdf088c7583..e0142cda2394 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -140,8 +140,10 @@ void __init init_ISA_irqs(void)
         }
 }
 
-/* Overridden in paravirt.c */
-void init_IRQ(void) __attribute__((weak, alias("native_init_IRQ")));
+void init_IRQ(void)
+{
+        x86_init.irqs.intr_init();
+}
 
 static void __init smp_intr_init(void)
 {
@@ -238,12 +240,6 @@ void __init native_init_IRQ(void)
 
 #ifdef CONFIG_X86_32
         /*
-         * Call quirks after call gates are initialised (usually add in
-         * the architecture specific gates):
-         */
-        x86_quirk_intr_init();
-
-        /*
          * External FPU? Set up irq13 if so, for
          * original braindamaged IBM FERR coupling.
          */
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 532c9a2626c7..d76bfbec71ae 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -183,11 +183,6 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
         return insn_len;
 }
 
-void init_IRQ(void)
-{
-        pv_irq_ops.init_IRQ();
-}
-
 static void native_flush_tlb(void)
 {
         __native_flush_tlb();
@@ -328,7 +323,6 @@ struct pv_time_ops pv_time_ops = {
 };
 
 struct pv_irq_ops pv_irq_ops = {
-        .init_IRQ = native_init_IRQ,
         .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl),
         .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl),
         .irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable),
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 54043cb7ba68..d3da0f7333f7 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1021,23 +1021,6 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_X86_32
 
 /**
- * x86_quirk_intr_init - post gate setup interrupt initialisation
- *
- * Description:
- *      Fill in any interrupts that may have been left out by the general
- *      init_IRQ() routine.  interrupts having to do with the machine rather
- *      than the devices on the I/O bus (like APIC interrupts in intel MP
- *      systems) are started here.
- **/
-void __init x86_quirk_intr_init(void)
-{
-        if (x86_quirks->arch_intr_init) {
-                if (x86_quirks->arch_intr_init())
-                        return;
-        }
-}
-
-/**
  * x86_quirk_trap_init - initialise system specific traps
  *
  * Description:
diff --git a/arch/x86/kernel/visws_quirks.c b/arch/x86/kernel/visws_quirks.c
index 1d6309d70dfa..a49013716da9 100644
--- a/arch/x86/kernel/visws_quirks.c
+++ b/arch/x86/kernel/visws_quirks.c
@@ -228,7 +228,6 @@ static int visws_trap_init(void);
 
 static struct x86_quirks visws_x86_quirks __initdata = {
         .arch_time_init         = visws_time_init,
-        .arch_intr_init         = NULL,
         .arch_trap_init         = visws_trap_init,
 };
 
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index f2abe2136da1..8cb59332e3b4 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -39,5 +39,6 @@ struct __initdata x86_init_ops x86_init = {
 
         .irqs = {
                 .pre_vector_init        = init_ISA_irqs,
+                .intr_init              = native_init_IRQ,
         },
 };