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x86: Export 'boot_cpu_physical_apicid' to modules 

Commit 9ebddac7ea "ACPI, x86: Fix extended error log driver to depend on
CONFIG_X86_LOCAL_APIC" fixed a build error when CONFIG_X86_LOCAL_APIC was not
selected and !CONFIG_SMP.

However, since CONFIG_ACPI_EXTLOG is tristate, there is a second build error:

  ERROR: "boot_cpu_physical_apicid" [drivers/acpi/acpi_extlog.ko] undefined!

The symbol needs to be exported for it to be available.

Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: Chen Gong <gong.chen@linux.intel.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1311141504080.30112@chino.kir.corp.google.com
[ Changed it to a _GPL() export. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
David Rientjes 2013-11-14 15:05:32 -08:00 committed by Ingo Molnar
parent 11f918d3e2
commit cc08e04c3f
1 changed files with 1 additions and 0 deletions
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1
arch/x86/kernel/apic/apic.c
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@ -62,6 +62,7 @@ unsigned disabled_cpus;
/* Processor that is doing the boot up */
unsigned int boot_cpu_physical_apicid = -1U;
EXPORT_SYMBOL_GPL(boot_cpu_physical_apicid);
/*
* The highest APIC ID seen during enumeration.