Extern or forward variable declaration arch/sandbox/include/asm/clk.h, line 12 [usage...] arch/sandbox/include/asm/mbox.h, line 14 [usage...] arch/sandbox/include/asm/power-domain.h, line 12 [usage...] arch/sandbox/include/asm/reset.h, line 12 [usage...] arch/x86/include/asm/mrccache.h, line 31 [usage...] include/asm-generic/gpio.h, line 111 [usage...] include/blk.h, line 178 [usage...] include/clk.h, line 32 [usage...] include/display.h, line 10 [usage...] include/dm/device-internal.h, line 14 [usage...] include/dm/root.h, line 13 [usage...] include/dm/uclass.h, line 42 [usage...] include/i2c.h, line 34 [usage...] include/ide.h, line 37 [usage...] include/mailbox-uclass.h, line 14 [usage...] include/mailbox.h, line 36 [usage...] include/ns16550.h, line 63 [usage...] include/pci.h, line 805 [usage...] include/power-domain-uclass.h, line 14 [usage...] include/power-domain.h, line 46 [usage...] include/power/as3722.h, line 15 [usage...] include/reset-uclass.h, line 15 [usage...] include/reset.h, line 31 [usage...] include/serial.h, line 79 [usage...] Structure include/dm/device.h, line 91 [usage...]