regmap: fix the warning about unused variable

The variable 'u64 *u64' should be only visible on 64-BIT platform.

Signed-off-by: Xiubo Li <lixiubo@cmss.chinamobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 1791180dca02..a0d30a0fd8cf 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -2581,7 +2581,9 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
                                  * we assume that the values are native
                                  * endian.
                                  */
+#ifdef CONFIG_64BIT
                                 u64 *u64 = val;
+#endif
                                 u32 *u32 = val;
                                 u16 *u16 = val;
                                 u8 *u8 = val;