Commit-ID:  bbcf9574bc6fb85d22f2718d48da7f98830a7870
Gitweb:     http://git.kernel.org/tip/bbcf9574bc6fb85d22f2718d48da7f98830a7870
Author:     Thomas Gleixner <[email protected]>
AuthorDate: Tue, 20 Jun 2017 01:37:41 +0200
Committer:  Thomas Gleixner <[email protected]>
CommitDate: Thu, 22 Jun 2017 18:21:21 +0200

x86/uv: Use default_cpu_mask_to_apicid_and()

Same functionality except the extra bits ored on the apicid.

Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Keith Busch <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]

---
 arch/x86/kernel/apic/x2apic_uv_x.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c 
b/arch/x86/kernel/apic/x2apic_uv_x.c
index b487b3a..fd5bb20 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -530,23 +530,12 @@ uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
                          const struct cpumask *andmask,
                          unsigned int *apicid)
 {
-       int unsigned cpu;
+       int ret = default_cpu_mask_to_apicid_and(cpumask, andmask, apicid);
 
-       /*
-        * We're using fixed IRQ delivery, can only return one phys APIC ID.
-        * May as well be the first.
-        */
-       for_each_cpu_and(cpu, cpumask, andmask) {
-               if (cpumask_test_cpu(cpu, cpu_online_mask))
-                       break;
-       }
-
-       if (likely(cpu < nr_cpu_ids)) {
-               *apicid = per_cpu(x86_cpu_to_apicid, cpu) | uv_apicid_hibits;
-               return 0;
-       }
+       if (!ret)
+               *apicid |= uv_apicid_hibits;
 
-       return -EINVAL;
+       return ret;
 }
 
 static unsigned int x2apic_get_apic_id(unsigned long x)

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