Outer cache sync pointer function should be assigned only if OUTER_CACHE_SYNC
config option was selected, otherwise pointer is not valid.

Signed-off-by: Eran Ben-Avi <redacted>
---
?arch/arm/mm/cache-l2x0.c |?? 12 ++++++++++++
?1 file changed, 12 insertions(+)

diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index 447da6f..d358573 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c

@@ -128,6 +128,7 @@ static inline void l2x0_flush_line(unsigned long addr)

?}
?#endif
?
+#ifdef CONFIG_OUTER_CACHE_SYNC
?static void l2x0_cache_sync(void)
?{
???? unsigned long flags;

@@ -136,6 +137,7 @@ static void l2x0_cache_sync(void)

???? cache_sync();
???? raw_spin_unlock_irqrestore(&l2x0_lock, flags);
?}
+#endif
?
?static void __l2x0_flush_all(void)
?{

@@ -411,7 +413,9 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask)

???? ??? outer_cache.inv_range = l2x0_inv_range;
???? ??? outer_cache.clean_range = l2x0_clean_range;
???? ??? outer_cache.flush_range = l2x0_flush_range;
+#ifdef CONFIG_OUTER_CACHE_SYNC
???? ??? outer_cache.sync = l2x0_cache_sync;
+#endif