[patch 14/14] x86/smp: Remove single IPI wrapper

Thomas Gleixner
2015-11-04T22:57:55Z

[-- Attachment #1: x86-smp--Remove-single-IPI-wrapper --]
[-- Type: text/plain, Size: 1390 bytes --]

All APIC implementation have send_IPI now. Remove the conditional in
the calling code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/kernel/smp.c | 16 ++--------------
1 file changed, 2 insertions(+), 14 deletions(-)

Index: linux/arch/x86/kernel/smp.c
===================================================================
--- linux.orig/arch/x86/kernel/smp.c
+++ linux/arch/x86/kernel/smp.c
@@ -115,18 +115,6 @@ static atomic_t stopping_cpu = ATOMIC_IN
static bool smp_no_nmi_ipi = false;

/*
- * Helper wrapper: not all apic definitions support sending to
- * a single CPU, so we fall back to sending to a mask.
- */
-static void send_IPI_cpu(int cpu, int vector)
-{
- if (apic->send_IPI)
- apic->send_IPI(cpu, vector);
- else
- apic->send_IPI_mask(cpumask_of(cpu), vector);
-}
-
-/*
* this function sends a 'reschedule' IPI to another CPU.
* it goes straight through and wastes no time serializing
* anything. Worst case is that we lose a reschedule ...
@@ -137,12 +125,12 @@ static void native_smp_send_reschedule(i
WARN_ON(1);
return;
}
- send_IPI_cpu(cpu, RESCHEDULE_VECTOR);
+ apic->send_IPI(cpu, RESCHEDULE_VECTOR);
}

void native_send_call_func_single_ipi(int cpu)
{
- send_IPI_cpu(cpu, CALL_FUNCTION_SINGLE_VECTOR);
+ apic->send_IPI(cpu, CALL_FUNCTION_SINGLE_VECTOR);
}

void native_send_call_func_ipi(const struct cpumask *mask)