Move the DMA blacklisting of the CDB-intr devices from ata_check_atapi_dma() to ata_dma_blacklisted(), where it makes more sense. Signed-off-by: Albert Lee <albertcc@xxxxxxxxxx> --- Patch against upstream branch (d7a80dad2fe19a2b8c119c8e9cba605474a75a2b). For your review, thanks. --- upstream0/drivers/scsi/libata-core.c 2006-06-22 11:27:14.000000000 +0800 +++ upstream1/drivers/scsi/libata-core.c 2006-06-22 11:47:17.000000000 +0800 @@ -2943,6 +2943,14 @@ static int ata_dma_blacklisted(const str unsigned int nlen, rlen; int i; + /* We don't support polling DMA. + * DMA blacklist those ATAPI devices with CDB-intr (and use PIO) + * if the LLDD handles only interrupts in the HSM_ST_LAST state. + */ + if ((dev->ap->flags & ATA_FLAG_PIO_POLLING) && + (dev->flags & ATA_DFLAG_CDB_INTR)) + return 1; + ata_id_string(dev->id, model_num, ATA_ID_PROD_OFS, sizeof(model_num)); ata_id_string(dev->id, model_rev, ATA_ID_FW_REV_OFS, @@ -3235,15 +3243,6 @@ int ata_check_atapi_dma(struct ata_queue if (ap->ops->check_atapi_dma) rc = ap->ops->check_atapi_dma(qc); - /* We don't support polling DMA. - * Use PIO if the LLDD handles only interrupts in - * the HSM_ST_LAST state and the ATAPI device - * generates CDB interrupts. - */ - if ((ap->flags & ATA_FLAG_PIO_POLLING) && - (qc->dev->flags & ATA_DFLAG_CDB_INTR)) - rc = 1; - return rc; } /** @@ -4551,7 +4550,7 @@ unsigned int ata_qc_issue_prot(struct at break; case ATA_PROT_ATAPI_DMA: if (qc->dev->flags & ATA_DFLAG_CDB_INTR) - /* see ata_check_atapi_dma() */ + /* see ata_dma_blacklisted() */ BUG(); break; default: - : 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
