From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 28 May 2018 17:44:36 +0200
Subject: ARM: mcpm, perf/arm-cci: export mcpm_is_available

Git-commit: 73acc0315cd72174729141856c6607d1c91419cb
Patch-mainline: v4.18-rc1
References: fate#325865,fate#325861

Now that the ARM CCI PMU driver can be built as a loadable module,
we get a link failure when MCPM is enabled:

ERROR: "mcpm_is_available" [drivers/perf/arm-cci.ko] undefined!

The simplest fix is to export that helper function.

Fixes: 8b0c93c20ef7 ("perf/arm-cci: Allow building as a module")
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
 arch/arm/common/mcpm_entry.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index 2b913f17d50f..ad574d20415c 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -9,6 +9,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/export.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/irqflags.h>
@@ -174,6 +175,7 @@ bool mcpm_is_available(void)
 {
 	return (platform_ops) ? true : false;
 }
+EXPORT_SYMBOL_GPL(mcpm_is_available);
 
 /*
  * We can't use regular spinlocks. In the switcher case, it is possible
-- 
2.11.0