ATA_DF 866 include/linux/ata.h return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) ATA_DF 87 include/linux/ide.h #define BAD_W_STAT (BAD_R_STAT | ATA_DF) ATA_DF 1392 include/linux/libata.h if (status & (ATA_ERR | ATA_DF))