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[PATCH] ahci: kill pp->cmd_tbl_sg
With NCQ, there are multiple sg tables, so pp->cmd_tbl_sg doesn't cut it. Directly calculate sg table address from pp->cmd_tbl. Signed-off-by: Tejun Heo <htejun@gmail.com>
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@ -191,7 +191,6 @@ struct ahci_port_priv {
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dma_addr_t cmd_slot_dma;
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void *cmd_tbl;
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dma_addr_t cmd_tbl_dma;
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struct ahci_sg *cmd_tbl_sg;
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void *rx_fis;
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dma_addr_t rx_fis_dma;
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};
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@ -402,8 +401,6 @@ static int ahci_port_start(struct ata_port *ap)
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pp->cmd_tbl = mem;
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pp->cmd_tbl_dma = mem_dma;
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pp->cmd_tbl_sg = mem + AHCI_CMD_TBL_HDR_SZ;
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ap->private_data = pp;
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if (hpriv->cap & HOST_CAP_64)
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@ -749,7 +746,7 @@ static unsigned int ahci_fill_sg(struct ata_queued_cmd *qc)
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/*
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* Next, the S/G list.
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*/
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ahci_sg = pp->cmd_tbl_sg;
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ahci_sg = pp->cmd_tbl + AHCI_CMD_TBL_HDR_SZ;
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ata_for_each_sg(sg, qc) {
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dma_addr_t addr = sg_dma_address(sg);
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u32 sg_len = sg_dma_len(sg);
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