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charset="utf-8" i2c_smbus_write_word_data() expects a plain u16, but cpu_to_le16() returns __le16 (a sparse-restricted endian type), causing: drivers/base/regmap/regmap-i2c.c:340: sparse: incorrect type in argument 3 (different base types) expected unsigned short [usertype] value got restricted __le16 [usertype] SMBus already defines byte ordering internally, so cpu_to_le16() is wrong here. Replace it with a plain (u16) cast. Fixes: bad4bd28abf4 ("regmap-i2c: add SMBus byte/word reg16 bus for adapter= s lacking I2C_FUNC_I2C") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202605161621.mY5zFh4D-lkp@int= el.com/ Signed-off-by: Nishanth Sampath Kumar --- drivers/base/regmap/regmap-i2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/regmap/regmap-i2c.c b/drivers/base/regmap/regmap-= i2c.c index 31e30dfced19..ae441fc63127 100644 --- a/drivers/base/regmap/regmap-i2c.c +++ b/drivers/base/regmap/regmap-i2c.c @@ -337,7 +337,7 @@ static int regmap_smbus_word_write_reg16(void *context,= const void *data, val =3D ((u8 *)data)[2]; =20 return i2c_smbus_write_word_data(i2c, addr_hi, - cpu_to_le16(((u16)val << 8) | addr_lo)); + ((u16)val << 8) | addr_lo)); } =20 static const struct regmap_bus regmap_smbus_byte_word_reg16 =3D { --=20 2.25.1