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Date: Thu, 14 Jun 2012 07:47:22 -0700
From: tip-bot for Alexander Gordeev <agordeev@...hat.com>
To: linux-tip-commits@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, agordeev@...hat.com, hpa@...or.com,
mingo@...nel.org, yinghai@...nel.org, suresh.b.siddha@...el.com,
tglx@...utronix.de
Subject: [tip:x86/apic] x86/apic:
Fix ugly casting and branching in cpu_mask_to_apicid_and()
Commit-ID: ea3807ea52a53f2cdfd60c89d8491fc9a8208d1c
Gitweb: http://git.kernel.org/tip/ea3807ea52a53f2cdfd60c89d8491fc9a8208d1c
Author: Alexander Gordeev <agordeev@...hat.com>
AuthorDate: Thu, 14 Jun 2012 09:49:55 +0200
Committer: Ingo Molnar <mingo@...nel.org>
CommitDate: Thu, 14 Jun 2012 12:53:14 +0200
x86/apic: Fix ugly casting and branching in cpu_mask_to_apicid_and()
Signed-off-by: Alexander Gordeev <agordeev@...hat.com>
Cc: Suresh Siddha <suresh.b.siddha@...el.com>
Cc: Yinghai Lu <yinghai@...nel.org>
Link: http://lkml.kernel.org/r/20120614074954.GF3383@dhcp-26-207.brq.redhat.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
arch/x86/kernel/apic/apic.c | 8 ++++----
arch/x86/kernel/apic/es7000_32.c | 2 +-
arch/x86/kernel/apic/summit_32.c | 2 +-
arch/x86/kernel/apic/x2apic_uv_x.c | 8 ++++----
4 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 048a4f8..c421512 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -2127,19 +2127,19 @@ int default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask,
unsigned int *apicid)
{
- int cpu;
+ unsigned int cpu;
for_each_cpu_and(cpu, cpumask, andmask) {
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
}
- if (likely((unsigned int)cpu < nr_cpu_ids)) {
+ if (likely(cpu < nr_cpu_ids)) {
*apicid = per_cpu(x86_cpu_to_apicid, cpu);
return 0;
- } else {
- return -EINVAL;
}
+
+ return -EINVAL;
}
/*
diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c
index 2c5317e..effece2 100644
--- a/arch/x86/kernel/apic/es7000_32.c
+++ b/arch/x86/kernel/apic/es7000_32.c
@@ -529,7 +529,7 @@ static inline int
es7000_cpu_mask_to_apicid(const struct cpumask *cpumask, unsigned int *dest_id)
{
unsigned int round = 0;
- int cpu, uninitialized_var(apicid);
+ unsigned int cpu, uninitialized_var(apicid);
/*
* The cpus in the mask must all be on the apic cluster.
diff --git a/arch/x86/kernel/apic/summit_32.c b/arch/x86/kernel/apic/summit_32.c
index bbad180..b53fd6c 100644
--- a/arch/x86/kernel/apic/summit_32.c
+++ b/arch/x86/kernel/apic/summit_32.c
@@ -267,7 +267,7 @@ static inline int
summit_cpu_mask_to_apicid(const struct cpumask *cpumask, unsigned int *dest_id)
{
unsigned int round = 0;
- int cpu, apicid = 0;
+ unsigned int cpu, apicid = 0;
/*
* The cpus in the mask must all be on the apic cluster.
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 026de01..8cfade9 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -274,7 +274,7 @@ uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask,
unsigned int *apicid)
{
- int cpu;
+ int unsigned cpu;
/*
* We're using fixed IRQ delivery, can only return one phys APIC ID.
@@ -285,12 +285,12 @@ uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
break;
}
- if (likely((unsigned int)cpu < nr_cpu_ids)) {
+ if (likely(cpu < nr_cpu_ids)) {
*apicid = per_cpu(x86_cpu_to_apicid, cpu) | uv_apicid_hibits;
return 0;
- } else {
- return -EINVAL;
}
+
+ return -EINVAL;
}
static unsigned int x2apic_get_apic_id(unsigned long x)
--
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