Hello, Stuart MENEFY wrote: > libata keeps a shadow copy of the ATA CTL register (which is write only), > and only writes to the hardware when the required value doesn't match > the shadow. However this copy wasn't being maintained when performing > reset functions. This could cause problems for the first operation after > a reset when the correct value might not be written to the CTL register. > > This problem was observed when hotplugging a drive: the identify command > was being issued with interrupts enabled, when they should have been > disabled. > > Signed-off-by: Stuart Menefy <stuart.menefy@xxxxxx> Nice catch. Maybe a nice addition would be a ata_sff_write_to_ctl() or something which always does the right thing. Acked-by: Tejun Heo <tj@xxxxxxxxxx> Thanks. -- tejun -- 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
