Extern or forward variable declaration at include/linux/mfd/core.h, line 44 References: arch/arm/mach-pxa/pxa_cplds_irqs.c, line 31 arch/arm/mach-pxa/pxa_cplds_irqs.c, line 82 drivers/gpio/gpio-wm831x.c, line 96 drivers/mfd/88pm860x-core.c, line 552 drivers/mfd/ab8500-core.c, line 556 drivers/mfd/db8500-prcmu.c, line 269 drivers/mfd/db8500-prcmu.c, line 2687 drivers/mfd/max77650.c, line 156 drivers/mfd/max8925-core.c, line 644 drivers/mfd/mfd-core.c, line 113 drivers/mfd/mfd-core.c, line 264 drivers/mfd/mfd-core.c, line 325 drivers/mfd/mt6397-core.c, line 194 drivers/mfd/mt6397-core.c, line 201 drivers/mfd/mt6397-core.c, line 210 drivers/mfd/qcom-pm8xxx.c, line 74 drivers/mfd/qcom-pm8xxx.c, line 372 drivers/mfd/qcom-pm8xxx.c, line 380 drivers/mfd/stmfx.c, line 228 drivers/mfd/stmfx.c, line 233 drivers/mfd/stmfx.c, line 244 drivers/mfd/stmfx.c, line 261 drivers/mfd/stmfx.c, line 263 drivers/mfd/stmfx.c, line 272 drivers/mfd/stmfx.c, line 275 drivers/mfd/stmfx.c, line 446 drivers/mfd/stmpe.c, line 1190 drivers/mfd/stmpe.c, line 1207 drivers/mfd/tc3589x.c, line 209 drivers/mfd/tc3589x.c, line 223 drivers/mfd/tps65217.c, line 129 drivers/mfd/tps65217.c, line 140 drivers/mfd/tps65217.c, line 170 drivers/mfd/tps65217.c, line 172 drivers/mfd/tps65217.c, line 356 drivers/mfd/tps65217.c, line 392 drivers/mfd/tps65217.c, line 397 drivers/mfd/tps65217.c, line 398 drivers/mfd/tps6586x.c, line 132 drivers/mfd/tps6586x.c, line 132 drivers/mfd/tps6586x.c, line 205 drivers/mfd/tps6586x.c, line 291 drivers/mfd/tps6586x.c, line 330 drivers/mfd/tps6586x.c, line 367 drivers/mfd/tps6586x.c, line 370 drivers/mfd/tps6586x.c, line 554 drivers/mfd/wm8994-irq.c, line 162 include/linux/mfd/core.h, line 44 include/linux/mfd/core.h, line 128 include/linux/mfd/core.h, line 128 include/linux/mfd/core.h, line 142 include/linux/mfd/core.h, line 142