diff options
| author | Alexander Gordeev <agordeev@redhat.com> | 2012-06-14 09:49:55 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-06-14 12:53:14 +0200 |
| commit | ea3807ea52a53f2cdfd60c89d8491fc9a8208d1c (patch) | |
| tree | fd9a02a9f0b304f0ce0add19c7eb43c7a1997bb6 | |
| parent | x86/apic: Eliminate cpu_mask_to_apicid() operation (diff) | |
| download | linux-ea3807ea52a53f2cdfd60c89d8491fc9a8208d1c.tar.xz linux-ea3807ea52a53f2cdfd60c89d8491fc9a8208d1c.zip | |
x86/apic: Fix ugly casting and branching in cpu_mask_to_apicid_and()
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/20120614074954.GF3383@dhcp-26-207.brq.redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/kernel/apic/apic.c | 8 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/es7000_32.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/summit_32.c | 2 | ||||
| -rw-r--r-- | 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 048a4f806d46..c421512ca5eb 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 2c5317ea1b83..effece2ea0db 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 bbad180f2890..b53fd6c9993a 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 026de0114d15..8cfade9510a4 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) |