[PATCH] powerpc: Fix unused variable warning for epapr_has_idle

[Scott Wood]

This warning can be seen in allyesconfig, and was introduced by commit
f9eb581c63b2acce827570e105205c0789360650 "powerpc: fix build of
epapr_paravirt on 64-bit book3s".

Signed-off-by: Scott Wood <scottwood at freescale.com>
---
Sorry about the churn on this -- I did try to build allyesconfig, but I
forgot that CONFIG_PPC_DISABLE_WERROR would be enabled, plus the build
failed on the "attempt to move .org backwards" issue.
---
 arch/powerpc/kernel/epapr_paravirt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/epapr_paravirt.c b/arch/powerpc/kernel/epapr_paravirt.c
index eab2f2a..c47fed0 100644
--- a/arch/powerpc/kernel/epapr_paravirt.c
+++ b/arch/powerpc/kernel/epapr_paravirt.c
@@ -30,7 +30,7 @@ extern u32 epapr_ev_idle_start[];
 #endif
 
 bool epapr_paravirt_enabled;
-static bool epapr_has_idle;
+static bool __maybe_unused epapr_has_idle;
 
 static int __init early_init_dt_scan_epapr(unsigned long node,
 					   const char *uname,
-- 
1.9.1