"Pozsar Balazs wrote:"
> 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) &&
> #ifndef CONFIG_IDEDMA_IVB
> (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.
No, it is not the same. But it duplicates the test when CONFIG_IDEDMA_IVB
is not set. If both tests are done and the first is true, the second also
must be true. If the first is false, the second is meaningless.
Maybe the above code should be:
return ((byte) ((HWIF(drive)->udma_four) &&
#ifndef CONFIG_IDEDMA_IVB
(drive->id->hw_config & 0x4000)
#else
(drive->id->hw_config & 0x6000)
#endif /* CONFIG_IDEDMA_IVB */
) ? 1 : 0);
Just my 0.03 PLN...
-- ======================================================================= Andrzej M. Krzysztofowicz ankry@mif.pg.gda.pl phone (48)(58) 347 14 61 Faculty of Applied Phys. & Math., Technical University of Gdansk- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Feb 23 2001 - 21:00:21 EST