[tip:x86/apic] x86/apic/uv: Make x2apic_extra_bits static

[tip-bot for Thomas Gleixner]

Commit-ID:  82e574782345aa634e1544e80da85d71a9dbde19
Gitweb:     https://git.kernel.org/tip/82e574782345aa634e1544e80da85d71a9dbde19
Author:     Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Mon, 22 Jul 2019 20:47:15 +0200
Committer:  Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Thu, 25 Jul 2019 16:11:58 +0200

x86/apic/uv: Make x2apic_extra_bits static

Not used outside of the UV apic source.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/20190722105219.725264153@xxxxxxxxxxxxx

---
 arch/x86/include/asm/apic.h        | 2 --
 arch/x86/kernel/apic/x2apic_uv_x.c | 2 +-
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index e647aa095867..f53eda2c986b 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -467,8 +467,6 @@ static inline unsigned default_get_apic_id(unsigned long x)
 
 #ifdef CONFIG_X86_64
 extern void apic_send_IPI_self(int vector);
-
-DECLARE_PER_CPU(int, x2apic_extra_bits);
 #endif
 
 extern void generic_bigsmp_probe(void);
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 73a652093820..e6230af19864 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -22,7 +22,7 @@
 #include <asm/uv/uv.h>
 #include <asm/apic.h>
 
-DEFINE_PER_CPU(int, x2apic_extra_bits);
+static DEFINE_PER_CPU(int, x2apic_extra_bits);
 
 static enum uv_system_type	uv_system_type;
 static bool			uv_hubless_system;