Hi Mark, FYI, kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next head: 24761067087088978ff309c0161daeac51fdc693 commit: 3fb8e195d7cb9202af9532167dee99dce3b35a88 [5/57] regulator: wm831x-ldo: Add bypass support config: i386-randconfig-k830 (attached as .config) All related error/warning messages: drivers/regulator/core.c: In function 'regulator_set_bypass_regmap': drivers/regulator/core.c:2712:19: error: 'const struct regulator_desc' has no member named 'bypass_mask' drivers/regulator/core.c:2716:52: error: 'const struct regulator_desc' has no member named 'bypass_reg' drivers/regulator/core.c:2717:17: error: 'const struct regulator_desc' has no member named 'bypass_mask' drivers/regulator/core.c: In function 'regulator_get_bypass_regmap': drivers/regulator/core.c:2732:44: error: 'const struct regulator_desc' has no member named 'bypass_reg' drivers/regulator/core.c:2736:28: error: 'const struct regulator_desc' has no member named 'bypass_mask' drivers/regulator/core.c: In function 'regulator_set_bypass_regmap': drivers/regulator/core.c:2718:1: warning: control reaches end of non-void function [-Wreturn-type] -- drivers/regulator/wm831x-ldo.c:240:16: error: 'regulator_get_bypass_regmap' undeclared here (not in a function) drivers/regulator/wm831x-ldo.c:241:16: error: 'regulator_set_bypass_regmap' undeclared here (not in a function) drivers/regulator/wm831x-ldo.c: In function 'wm831x_gp_ldo_probe': drivers/regulator/wm831x-ldo.c:298:11: error: 'struct regulator_desc' has no member named 'bypass_reg' drivers/regulator/wm831x-ldo.c:299:11: error: 'struct regulator_desc' has no member named 'bypass_mask' drivers/regulator/wm831x-ldo.c: In function 'wm831x_aldo_probe': drivers/regulator/wm831x-ldo.c:553:11: error: 'struct regulator_desc' has no member named 'bypass_reg' drivers/regulator/wm831x-ldo.c:554:11: error: 'struct regulator_desc' has no member named 'bypass_mask' vim +240 drivers/regulator/wm831x-ldo.c 237 .set_mode = wm831x_gp_ldo_set_mode, 238 .get_status = wm831x_gp_ldo_get_status, 239 .get_optimum_mode = wm831x_gp_ldo_get_optimum_mode, > 240 .get_bypass = regulator_get_bypass_regmap, 241 .set_bypass = regulator_set_bypass_regmap, 242 243 .is_enabled = regulator_is_enabled_regmap, --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu Intel Corporation