this patch change struct regmap->mutex and struct regmap->spinlock
as an union, because these 2 members are only used one of them,
we change it to shrink the struct size.
Signed-off-by: Yalin Wang <yalin.w...@sonymobile.com>
---
drivers/base/regmap/internal.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index bfc90b8..0da5865 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -49,8 +49,10 @@ struct regmap_async {
};
struct regmap {
- struct mutex mutex;
- spinlock_t spinlock;
+ union {
+ struct mutex mutex;
+ spinlock_t spinlock;
+ };
unsigned long spinlock_flags;
regmap_lock lock;
regmap_unlock unlock;
--
2.1.0
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