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x86/apic: Drop logical_smp_processor_id() inline 

The logical_smp_processor_id() inline which is only called in
setup_local_APIC() on x86_32 systems has no real value.

Drop it and directly use GET_APIC_LOGICAL_ID() at the call site and use a
more suitable variable name for readability

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: andy.shevchenko@gmail.com
Cc: bhe@redhat.com
Cc: ebiederm@xmission.com
Link: https://lkml.kernel.org/r/20180301055930.2396-4-douly.fnst@cn.fujitsu.com
This commit is contained in:
Dou Liyang 2018-03-01 13:59:30 +08:00 committed by Thomas Gleixner
parent 3ea9e7ae1a
commit 8f1561680f
2 changed files with 5 additions and 15 deletions
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10
arch/x86/include/asm/smp.h
View File

@ -176,16 +176,6 @@ static inline int wbinvd_on_all_cpus(void)
extern unsigned disabled_cpus;
#ifdef CONFIG_X86_LOCAL_APIC
#ifndef CONFIG_X86_64
static inline int logical_smp_processor_id(void)
{
/* we don't want to mark this access volatile - bad code generation */
return GET_APIC_LOGICAL_ID(apic_read(APIC_LDR));
}
#endif
extern int hard_smp_processor_id(void);
#else /* CONFIG_X86_LOCAL_APIC */

10
arch/x86/kernel/apic/apic.c
View File

@ -1468,7 +1468,7 @@ static void setup_local_APIC(void)
int cpu = smp_processor_id();
unsigned int value;
#ifdef CONFIG_X86_32
int i;
int logical_apicid, ldr_apicid;
#endif
@ -1507,11 +1507,11 @@ static void setup_local_APIC(void)
* initialized during get_smp_config(), make sure it matches the
* actual value.
*/
i = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
WARN_ON(i != BAD_APICID && i != logical_smp_processor_id());
logical_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
ldr_apicid = GET_APIC_LOGICAL_ID(apic_read(APIC_LDR));
WARN_ON(logical_apicid != BAD_APICID && logical_apicid != ldr_apicid);
/* always use the value from LDR */
early_per_cpu(x86_cpu_to_logical_apicid, cpu) =
logical_smp_processor_id();
early_per_cpu(x86_cpu_to_logical_apicid, cpu) = ldr_apicid;
#endif
/*