Tejun Heo wrote:
> Albert Lee wrote:
>
>> diff -Nrup 01_hsm_st/drivers/ata/libata-eh.c
>> 02_aopen_rs/drivers/ata/libata-eh.c
>> --- 01_hsm_st/drivers/ata/libata-eh.c 2007-03-23 16:56:13.000000000
>> +0800
>> +++ 02_aopen_rs/drivers/ata/libata-eh.c 2007-03-31
>> 01:11:01.000000000 +0800
>> @@ -991,18 +991,19 @@ static unsigned int atapi_eh_request_sen
>>
>> DPRINTK("ATAPI request sense\n");
>>
>> - ata_tf_init(dev, &tf);
>> -
>> /* FIXME: is this needed? */
>> memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
>>
>> - /* XXX: why tf_read here? */
>> + /* read error register to initialize sense_buf */
>> ap->ops->tf_read(ap, &tf);
>>
>> /* fill these in, for the case where they are -not- overwritten */
>> sense_buf[0] = 0x70;
>> sense_buf[2] = tf.feature >> 4;
>
>
> Oh, now I see why it's there. Thanks for spotting this. We don't need
> tf_read here, you can simply use the value in qc->result_tf.feature for
> this purpose.
>
Thanks for the advice. Will revise this patch.
--
albert
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