> + /* Read command completed register */
> + done_mask = ioread32(hcr_base + CC);
> +
> + if (host_priv->quirks & SATA_FSL_QUIRK_V2_ERRATA) {
> + if (unlikely(hstatus & INT_ON_DATA_LENGTH_MISMATCH)) {
> + for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
> + qc = ata_qc_from_tag(ap, tag);
> + if (qc && ata_is_atapi(qc->tf.protocol))
{
> + atapi_flag = 1;
> + break;
> + }
> + }
> + }
> + }
> +
> + /* Workaround for data length mismatch errata */
> + if (atapi_flag) {
Seems to me like the conditionals for this code are all
in the wrong order - adding code to the normal path.
The whole lot should probably be inside:
if (unlikely(hstatus & INT_ON_DATA_LENGTH_MISMATCH)) {
and the 'atapi_flag' boolean removed.
I also wonder it this is worthy of an actual quirk?
Might be worth doing anyway.
David
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