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Subject[IDE] meaningless #ifndef?
from drivers/ide/ide-features.c:

* All hosts that use the 80c ribbon mus use!
byte eighty_ninty_three (ide_drive_t *drive)
return ((byte) ((HWIF(drive)->udma_four) &&
(drive->id->hw_config & 0x4000) &&
#endif /* CONFIG_IDEDMA_IVB */
(drive->id->hw_config & 0x6000)) ? 1 : 0);

If i see well, then this is always same whether CONFIG_IDEDMA_IVB is
defined or not.
What's the clue?


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