x86/apic: Deinline __default_send_IPI_*, save ~200 bytes

__default_send_IPI_shortcut: 49 bytes, 2 callsites
__default_send_IPI_dest_field: 108 bytes, 7 callsites

     text     data      bss       dec     hex filename
 96184086 20860488 36122624 153167198 921255e vmlinux_before
 96183823 20860520 36122624 153166967 9212477 vmlinux

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Borislav Petkov <bp@alien.de>
Cc: Daniel J Blueman <daniel@numascale.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Travis <travis@sgi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/1457287876-6001-1-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2 files changed, 62 insertions, 56 deletions

diff --git a/arch/x86/include/asm/ipi.h b/arch/x86/include/asm/ipi.h
index cfc9a0d2d07c..a4fe16e42b7b 100644
--- a/arch/x86/include/asm/ipi.h
+++ b/arch/x86/include/asm/ipi.h
@@ -57,67 +57,13 @@ static inline void __xapic_wait_icr_idle(void)
                 cpu_relax();
 }
 
-static inline void
-__default_send_IPI_shortcut(unsigned int shortcut, int vector, unsigned int dest)
-{
-        /*
-         * Subtle. In the case of the 'never do double writes' workaround
-         * we have to lock out interrupts to be safe.  As we don't care
-         * of the value read we use an atomic rmw access to avoid costly
-         * cli/sti.  Otherwise we use an even cheaper single atomic write
-         * to the APIC.
-         */
-        unsigned int cfg;
-
-        /*
-         * Wait for idle.
-         */
-        __xapic_wait_icr_idle();
-
-        /*
-         * No need to touch the target chip field
-         */
-        cfg = __prepare_ICR(shortcut, vector, dest);
-
-        /*
-         * Send the IPI. The write to APIC_ICR fires this off.
-         */
-        native_apic_mem_write(APIC_ICR, cfg);
-}
+void __default_send_IPI_shortcut(unsigned int shortcut, int vector, unsigned int dest);
 
 /*
  * This is used to send an IPI with no shorthand notation (the destination is
  * specified in bits 56 to 63 of the ICR).
  */
-static inline void
- __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest)
-{
-        unsigned long cfg;
-
-        /*
-         * Wait for idle.
-         */
-        if (unlikely(vector == NMI_VECTOR))
-                safe_apic_wait_icr_idle();
-        else
-                __xapic_wait_icr_idle();
-
-        /*
-         * prepare target chip field
-         */
-        cfg = __prepare_ICR2(mask);
-        native_apic_mem_write(APIC_ICR2, cfg);
-
-        /*
-         * program the ICR
-         */
-        cfg = __prepare_ICR(0, vector, dest);
-
-        /*
-         * Send the IPI. The write to APIC_ICR fires this off.
-         */
-        native_apic_mem_write(APIC_ICR, cfg);
-}
+void __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest);
 
 extern void default_send_IPI_single(int cpu, int vector);
 extern void default_send_IPI_single_phys(int cpu, int vector);
diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c
index eb45fc9b6124..28bde88b0085 100644
--- a/arch/x86/kernel/apic/ipi.c
+++ b/arch/x86/kernel/apic/ipi.c
@@ -18,6 +18,66 @@
 #include <asm/proto.h>
 #include <asm/ipi.h>
 
+void __default_send_IPI_shortcut(unsigned int shortcut, int vector, unsigned int dest)
+{
+        /*
+         * Subtle. In the case of the 'never do double writes' workaround
+         * we have to lock out interrupts to be safe.  As we don't care
+         * of the value read we use an atomic rmw access to avoid costly
+         * cli/sti.  Otherwise we use an even cheaper single atomic write
+         * to the APIC.
+         */
+        unsigned int cfg;
+
+        /*
+         * Wait for idle.
+         */
+        __xapic_wait_icr_idle();
+
+        /*
+         * No need to touch the target chip field
+         */
+        cfg = __prepare_ICR(shortcut, vector, dest);
+
+        /*
+         * Send the IPI. The write to APIC_ICR fires this off.
+         */
+        native_apic_mem_write(APIC_ICR, cfg);
+}
+
+/*
+ * This is used to send an IPI with no shorthand notation (the destination is
+ * specified in bits 56 to 63 of the ICR).
+ */
+void __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest)
+{
+        unsigned long cfg;
+
+        /*
+         * Wait for idle.
+         */
+        if (unlikely(vector == NMI_VECTOR))
+                safe_apic_wait_icr_idle();
+        else
+                __xapic_wait_icr_idle();
+
+        /*
+         * prepare target chip field
+         */
+        cfg = __prepare_ICR2(mask);
+        native_apic_mem_write(APIC_ICR2, cfg);
+
+        /*
+         * program the ICR
+         */
+        cfg = __prepare_ICR(0, vector, dest);
+
+        /*
+         * Send the IPI. The write to APIC_ICR fires this off.
+         */
+        native_apic_mem_write(APIC_ICR, cfg);
+}
+
 void default_send_IPI_single_phys(int cpu, int vector)
 {
         unsigned long flags;