Ar Llu, 2006-10-09 am 18:32 +0900, ysgrifennodd Tejun Heo: > libata waits for !BSY even when the status register reports 0xff. > This causes long boot delays when D8 isn't pulled down properly. This > patch does the followings. > > * don't wait if status register is 0xff in all wait functions > > * make ata_busy_sleep() return 0 on success and -errno on failure. > -ENODEV is returned on 0xff status and -EBUSY on other failures. > > * make ata_bus_softreset() succeed on 0xff status. 0xff status is not > reset failure. It indicates no device. This removes unnecessary > retries on such ports. Note that the code change assumes unoccupied > port reporting 0xff status does not produce valid device signature. > > Signed-off-by: Tejun Heo <htejun@xxxxxxxxx> > Cc: Joe Jin <lkmaillist@xxxxxxxxx> Acked-by: Alan Cox <alan@xxxxxxxxxx> - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
