[git patches] 2.6.x libata fixes

[Jeff Garzik <jgarzik@pobox.com>]

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Please pull from the 'misc-fixes' branches of
rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev.git

to obtain the two fixes described in the attached diffstat/shortlog/patch.

	Jeff




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 drivers/scsi/libata-core.c |    4 +---
 drivers/scsi/sata_sil.c    |    8 +++++++-
 2 files changed, 8 insertions(+), 4 deletions(-)


Albert Lee:
  sg traverse fix for __atapi_pio_bytes()

Jens Axboe:
  sata_sil: Fix FIFO PCI Bus Arbitration kernel oops



diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -2577,7 +2577,6 @@ static void __atapi_pio_bytes(struct ata
 next_sg:
 	sg = &qc->sg[qc->cursg];
 
-next_page:
 	page = sg->page;
 	offset = sg->offset + qc->cursg_ofs;
 
@@ -2585,6 +2584,7 @@ next_page:
 	page = nth_page(page, (offset >> PAGE_SHIFT));
 	offset %= PAGE_SIZE;
 
+	/* don't overrun current sg */
 	count = min(sg->length - qc->cursg_ofs, bytes);
 
 	/* don't cross page boundaries */
@@ -2609,8 +2609,6 @@ next_page:
 	kunmap(page);
 
 	if (bytes) {
-		if (qc->cursg_ofs < sg->length)
-			goto next_page;
 		goto next_sg;
 	}
 }
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -432,7 +432,13 @@ static int sil_init_one (struct pci_dev 
 		writeb(cls, mmio_base + SIL_FIFO_R0);
 		writeb(cls, mmio_base + SIL_FIFO_W0);
 		writeb(cls, mmio_base + SIL_FIFO_R1);
-		writeb(cls, mmio_base + SIL_FIFO_W2);
+		writeb(cls, mmio_base + SIL_FIFO_W1);
+		if (ent->driver_data == sil_3114) {
+			writeb(cls, mmio_base + SIL_FIFO_R2);
+			writeb(cls, mmio_base + SIL_FIFO_W2);
+			writeb(cls, mmio_base + SIL_FIFO_R3);
+			writeb(cls, mmio_base + SIL_FIFO_W3);
+		}
 	} else
 		printk(KERN_WARNING DRV_NAME "(%s): cache line size not set.  Driver may not function\n",
 			pci_name(pdev));