Extern or forward variable declaration at include/linux/libata.h, line 1240 References: drivers/ata/ahci_imx.c, line 92 drivers/ata/ahci_imx.c, line 984 drivers/ata/ahci_imx.c, line 1045 drivers/ata/libahci_platform.c, line 385 drivers/ata/libahci_platform.c, line 485 drivers/ata/libahci_platform.c, line 573 drivers/ata/libahci_platform.c, line 682 drivers/ata/sata_mv.c, line 4048 drivers/ata/sata_mv.c, line 4215 drivers/ata/sata_mv.c, line 4237 drivers/ata/sata_mv.c, line 4246 drivers/scsi/hisi_sas/hisi_sas.h, line 369 drivers/scsi/hisi_sas/hisi_sas.h, line 613 drivers/scsi/hisi_sas/hisi_sas.h, line 615 drivers/scsi/hisi_sas/hisi_sas_main.c, line 2486 drivers/scsi/hisi_sas/hisi_sas_main.c, line 2548 drivers/scsi/hisi_sas/hisi_sas_main.c, line 2608 drivers/scsi/hisi_sas/hisi_sas_main.c, line 3962 drivers/scsi/hisi_sas/hisi_sas_v1_hw.c, line 1640 drivers/scsi/hisi_sas/hisi_sas_v1_hw.c, line 1801 drivers/scsi/hisi_sas/hisi_sas_v1_hw.c, line 1806 drivers/scsi/hisi_sas/hisi_sas_v2_hw.c, line 3313 drivers/scsi/hisi_sas/hisi_sas_v2_hw.c, line 3400 drivers/scsi/hisi_sas/hisi_sas_v2_hw.c, line 3587 drivers/scsi/hisi_sas/hisi_sas_v2_hw.c, line 3604