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authorWang, Yalin <Yalin.Wang@sonymobile.com>2014-09-11 16:19:49 +0800
committerMark Brown <broonie@kernel.org>2014-09-12 14:57:26 +0100
commit336fb81b319ec4d5c09aa6417de7c042cfcd7461 (patch)
tree7b1e75a60878d8f2d9ac3a6de329eda643795832 /drivers/base/regmap/internal.h
parent9ba1e456e1fa3729fc6be73403a7b2083f9590eb (diff)
regmap: change struct regmap's internal locks as union
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.wang@sonymobile.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/base/regmap/internal.h')
-rw-r--r--drivers/base/regmap/internal.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 7d1326985bee..f82e8faa5d93 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;