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
"ide: fix drive side 80c cable check, take 2" patch from Tejun Heo (commit fab59375b9543f84d1714f7dd00f5d11e531bd3e) fixed 80c bit test (bit13 of word93) but we also need to fix master/slave IDENTIFY order (slave device should be probed first in order to make it release PDIAG- signal) and we should also check for pre-ATA3 slave devices (which may not release PDIAG- signal). [ Unfortunately the fact that IDE driver doesn't reset devices itself helps only a bit as it seems that some BIOS-es reset ATA devices after programming the chipset, some BIOS-es can be set to not probe/configure selected devices, there may be no BIOS in case of add-on cards etc. ] Since we are quite late in the release cycle and the required changes will affect a lot of systems just revert the fix for now. [ Please also see libata commit f31f0cc2f0b7527072d94d02da332d9bb8d7d94c. ] Thanks goes out to Fernando Mitio Yamada for reporting the problem and patiently testing patches. Acked-by: Tejun Heo <htejun@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>